CN105063247A - Sugar making process for refining cane mixed juice by use of multi-stage membrane filtration technology - Google Patents
Sugar making process for refining cane mixed juice by use of multi-stage membrane filtration technology Download PDFInfo
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Abstract
本发明涉及一种利用膜分离技术精制甘蔗混合汁制糖的工艺,所述工艺将甘蔗混合汁进行加热,再在加热的甘蔗混合汁中加入碱性物质调节pH值,随后分离甘蔗混合汁中的悬浮杂质,如蔗渣等,收集分离后液相,再通过微滤膜过滤除去其中粒径较小的悬浮杂质,大分子物质,胶体等,再使收集的滤液进入截留分子量大于蔗糖的超滤膜,脱除色素及分子量大于蔗糖的非糖物质,脱色后的清液使用截留分子量小于蔗糖分子的纳滤膜,对清液进行浓缩,分子量小于蔗糖的无机盐、单糖等透过纳滤膜被脱除。本发明所述工艺相对于传统工艺能够大幅度降低糖汁的色度和浊度,还可以大幅度降低糖汁中非糖大分子物质的含量,提高蔗糖的纯度和收率,主工艺中未添加石灰等澄清剂。The invention relates to a process for refining sugarcane mixed juice by using membrane separation technology. The process heats the sugarcane mixed juice, adds alkaline substances to the heated sugarcane mixed juice to adjust the pH value, and then separates the sugarcane mixed juice Suspended impurities, such as bagasse, etc., collect and separate the liquid phase, and then filter through a microfiltration membrane to remove suspended impurities, macromolecular substances, colloids, etc. Membrane, to remove pigment and non-sugar substances with a molecular weight greater than sucrose. The decolorized serum uses a nanofiltration membrane with a molecular weight cutoff smaller than sucrose molecules to concentrate the supernatant, and inorganic salts and monosaccharides with a molecular weight smaller than sucrose pass through nanofiltration. The membrane is removed. Compared with the traditional process, the process of the present invention can greatly reduce the chroma and turbidity of the sugar juice, can also greatly reduce the content of non-sugar macromolecular substances in the sugar juice, and improve the purity and yield of sucrose. Add clarifiers such as lime.
Description
技术领域technical field
本发明属于精制糖技术领域,具体一种利用多级膜过滤技术处理甘蔗混合汁的精制糖的工艺。The invention belongs to the technical field of refined sugar, in particular to a process for processing refined sugar of sugarcane mixed juice by using multi-stage membrane filtration technology.
背景技术Background technique
目前,国内甘蔗制糖生产工艺根据澄清工艺的不同主要有石灰法、亚硫酸法和碳酸法,上述方法中的澄清处理步骤主要有三个过程:加热蔗汁、添加澄清剂、分离沉淀。上述方法利用澄清剂除去初始糖汁中的非糖成分等杂质,同时降低糖汁的色度和浊度,但上述方法普遍存在工艺复杂、脱色率低、非糖成分去除率低、澄清剂消耗量大、影响口感等问题。经过澄清的糖汁一般经过多效蒸发步骤将糖汁进行高温浓缩,由于高温浓缩过程,使蔗糖发生转化和分解,产品色度增加,同时还存在蒸发相变的能耗比较高等问题。At present, domestic sugarcane sugar production processes mainly include lime method, sulfurous acid method and carbonic acid method according to different clarification processes. The clarification treatment steps in the above methods mainly include three processes: heating cane juice, adding clarifier, and separation and precipitation. The above method uses clarifiers to remove impurities such as non-sugar components in the initial sugar juice, and at the same time reduces the color and turbidity of the sugar juice, but the above methods generally have complex processes, low decolorization rate, low removal rate of non-sugar components, and clarifier consumption A large amount, affecting the taste and other issues. The clarified sugar juice is generally concentrated at high temperature through a multi-effect evaporation step. Due to the high temperature concentration process, the sucrose is transformed and decomposed, and the color of the product increases. At the same time, there are problems such as relatively high energy consumption for evaporation phase transition.
CN103725802A公开了一种蔗糖精制的工艺,具体步骤包括蔗糖榨汁,预处理,膜微滤,预浓缩,离子交换脱色、除盐,MVR(机械蒸汽再压缩技术)蒸发浓缩,结晶,离心分离,干燥等步骤,得到蔗糖结晶。优点在于:用陶瓷微滤替换了板框和石灰沉淀步骤,省去超滤工序段;用膜浓缩,减少蒸发浓缩设备的蒸发量,降低了能耗,去除了一部分无机盐;用离子交换脱色除杂工艺代替了硫熏工艺,解决了蔗糖中的硫残留问题,提高了产品质量;用离子交换脱盐,有效的脱除蔗糖汁中的盐分;采用MVR蒸发浓缩,有降的降低了能耗;采用膜浓缩、分离及离子交换设备,减小了设备的占地面积,减小基建投资。上述专利虽然使用了膜微滤、离子交换、MVR等技术,但是这些改进仍然没有解决除杂率低、脱色率低、非糖成分去除率低等问题。CN103725802A discloses a process for refining sucrose. The specific steps include sucrose juice extraction, pretreatment, membrane microfiltration, preconcentration, ion exchange decolorization, desalination, MVR (mechanical vapor recompression technology) evaporation concentration, crystallization, centrifugal separation, Drying and other steps to obtain sucrose crystals. The advantages are: replace the plate frame and lime precipitation steps with ceramic microfiltration, and save the ultrafiltration process section; use membrane concentration to reduce the evaporation of evaporation and concentration equipment, reduce energy consumption, and remove part of inorganic salts; use ion exchange to decolorize The impurity removal process replaces the sulfur fumigation process, which solves the problem of sulfur residue in sucrose and improves product quality; uses ion exchange desalination to effectively remove the salt in sucrose juice; uses MVR evaporation and concentration to reduce energy consumption. ; The use of membrane concentration, separation and ion exchange equipment reduces the footprint of the equipment and reduces infrastructure investment. Although the above-mentioned patents use technologies such as membrane microfiltration, ion exchange, and MVR, these improvements still do not solve the problems of low impurity removal rate, low decolorization rate, and low removal rate of non-sugar components.
发明内容Contents of the invention
本发明的目的在于提供一种利用多级膜分离技术精制甘蔗混合汁的制糖工艺,本发明所述工艺相对于常规的蔗糖生产工艺以及通过新型分离技术(如普通的膜过滤、离子交换等)改进的工艺,可以更有效的降低产品的色度值和浊度值,简化脱色除杂的工序,降低脱色澄清除杂的成本;同时相对于单一采用膜过程脱色的方法,可以提高糖汁的蔗糖纯度和浓度;优选地,通过不同阶段滤渣或残液的循环利用,降低整个工艺的蔗糖损失,提高蔗糖的回收率。The object of the present invention is to provide a kind of sugar making technology that utilizes multi-stage membrane separation technology to refine sugarcane mixed juice. ) improved process can more effectively reduce the chroma value and turbidity value of the product, simplify the process of decolorization and impurity removal, and reduce the cost of decolorization, clarification and impurity removal; at the same time, compared with the method of single membrane process decolorization, it can improve the sugar juice The purity and concentration of sucrose; preferably, the sucrose loss of the whole process can be reduced and the recovery rate of sucrose can be improved through the recycling of filter residue or raffinate in different stages.
本发明提供一种利用多级膜分离技术精制甘蔗混合汁的制糖工艺,包括以下步骤:The invention provides a sugar making process for refining sugarcane mixed juice by using multi-stage membrane separation technology, comprising the following steps:
1)、将甘蔗混合汁进行加热;1), heating the sugarcane mixed juice;
2)、在加热的甘蔗混合汁中加入碱性物质调节pH值;2), adding alkaline substances to the heated sugarcane mixed juice to adjust the pH value;
3)、对调节好pH值的甘蔗混合汁进行预处理,所述预处理目的是去除甘蔗混合汁中悬浮的杂质,得过滤液A;3), the sugarcane mixed juice with adjusted pH value is pretreated, and the purpose of the pretreatment is to remove suspended impurities in the sugarcane mixed juice to obtain filtrate A;
4)、将所述过滤液A利用微滤膜技术进行二次过滤,目的是除去其中剩余的悬浮杂质、大分子物质、胶体,得过滤液B;4), the filtrate A is subjected to secondary filtration by microfiltration membrane technology, the purpose is to remove the remaining suspended impurities, macromolecular substances and colloids therein to obtain the filtrate B;
5)、将所述过滤液B利用超滤膜技术进行再过滤,所述超滤膜通过截留分子量大于蔗糖的物质,脱除色素及大于蔗糖的非糖物质,得过滤液C;5), the filtrate B is re-filtered using ultrafiltration membrane technology, and the ultrafiltration membrane removes pigments and non-sugar substances greater than sucrose by cutting off substances with a molecular weight greater than sucrose to obtain filtrate C;
6)、将所述过滤液C利用纳滤膜技术进行再过滤,所述纳滤膜通过截留蔗糖分子以及分子量大于蔗糖的分子对所述过滤液C进行浓缩,脱除分子量小于蔗糖物质,得到浓缩液;6), the filtrate C is re-filtered using nanofiltration membrane technology, the nanofiltration membrane concentrates the filtrate C by intercepting sucrose molecules and molecules with a molecular weight greater than sucrose, and removes substances with a molecular weight smaller than sucrose, to obtain Concentrate;
7)、将所述浓缩液进入浓缩器继续浓缩,浓缩到饱和浓度,降温结晶,离心固液分离后得到结晶糖产品7), put the concentrated solution into the concentrator to continue to concentrate, concentrate to the saturated concentration, cool down and crystallize, centrifuge and separate the solid and liquid to obtain the crystalline sugar product
优选地,所述预处理任选地为离心过滤、碟片过滤或滤袋过滤,优选为离心过滤。Preferably, the pretreatment is optionally centrifugal filtration, disc filtration or filter bag filtration, preferably centrifugal filtration.
优选地,所述微滤膜技术中,采用的微滤膜组件任选地为管式组件、卷式组件、中空纤维式组件和平板式组件,所述微滤膜的孔径范围为0.1-0.8微米,微滤过程的操作温度为60-95℃,操作压力0.01-0.4MPa。Preferably, in the microfiltration membrane technology, the microfiltration membrane module used is optionally a tubular module, a roll module, a hollow fiber module and a flat module, and the pore size of the microfiltration membrane is in the range of 0.1-0.8 microns , the operating temperature of the microfiltration process is 60-95 ° C, and the operating pressure is 0.01-0.4 MPa.
优选地,所述超滤膜组件任选地为卷式组件、管式组件、中空纤维式组件和平板式组件,所述超滤膜的截留分子量为1000-5000Da,优选1000Da,超滤过程的操作温度为60-95℃,操作压力1.0-1.5MPa。Preferably, the ultrafiltration membrane module is optionally a roll module, a tubular module, a hollow fiber module and a flat module, and the molecular weight cut-off of the ultrafiltration membrane is 1000-5000Da, preferably 1000Da, the operation of the ultrafiltration process The temperature is 60-95°C and the operating pressure is 1.0-1.5MPa.
优选地,所述纳滤膜组件为卷式组件,所述纳滤膜截留分子量为90-400Da,优选200Da,纳滤过程的操作温度为60-95℃,操作压力2.0-4.0MPa。Preferably, the nanofiltration membrane module is a coiled module, the nanofiltration membrane molecular weight cut-off is 90-400Da, preferably 200Da, the operating temperature of the nanofiltration process is 60-95°C, and the operating pressure is 2.0-4.0MPa.
优选地,所述甘蔗混合汁加热的温度为60-95℃,所述碱性物质为氢氧化钠或者氢氧化钙,优选氢氧化钠,pH值为6.8-7.5。Preferably, the heating temperature of the mixed sugarcane juice is 60-95° C., the alkaline substance is sodium hydroxide or calcium hydroxide, preferably sodium hydroxide, and the pH value is 6.8-7.5.
优选地,还包括对超滤过程所产生的高浓度高色度残液进行脱色处理,包括以下步骤:添加石灰、添加二氧化硫、添加二氧化碳、磷酸进行化学处理后,再经过沉降过滤过程除掉悬浮物质。Preferably, it also includes decolorizing the high-concentration and high-chroma raffinate produced by the ultrafiltration process, including the following steps: adding lime, adding sulfur dioxide, adding carbon dioxide, and phosphoric acid for chemical treatment, and then removing the suspension by sedimentation and filtration. substance.
优选地,所述工艺任选地还包括将步3)预处理过程产生的残渣及残液返回到甘蔗提汁工段;和/或Preferably, the process optionally also includes returning the residue and raffinate produced in step 3) to the sugarcane juice extraction section; and/or
将步骤4)微滤过程产生的高浓度悬浮杂质溶液返回到步骤3)进行预处理过程;和/或Step 4) the high-concentration suspended impurity solution produced by the microfiltration process is returned to step 3) to carry out the pretreatment process; and/or
将步骤5)超滤过程产生的高浓度高色度残液经脱色处理后返回到步骤4)进行微滤过程;和/或Return the high-concentration and high-chromaticity raffinate produced by the step 5) ultrafiltration process to the step 4) after the decolorization treatment to perform the microfiltration process; and/or
将步骤6)纳滤过程产生的透过液返回到榨汁洗涤工段作为洗涤用水。The permeate produced in the step 6) nanofiltration process is returned to the juice extraction and washing section as washing water.
优选地,所述的各级分离膜,均选择耐高温的有机膜。Preferably, the separation membranes at all levels are selected from high temperature resistant organic membranes.
本发明提供的一种利用膜过程的甘蔗混合汁精制制糖的新工艺与常规甘蔗精制过程及现有的改进过程相比,具有如下突出的特点和优势:Compared with the conventional sugarcane refining process and the existing improved process, a new sugar cane mixed juice refining process using membrane process provided by the present invention has the following prominent features and advantages:
1.本发明所述工艺采用微滤-超滤-纳滤的多级膜集成过滤技术代替原有的混汁沉淀澄清过程,可以大幅度的降低糖汁的色度和浊度以及非糖大分子物质的含量,提高蔗糖的纯度,提高蔗糖的收率。1. The process of the present invention adopts the multi-stage membrane integrated filtration technology of microfiltration-ultrafiltration-nanofiltration to replace the original mixed juice precipitation and clarification process, which can greatly reduce the color and turbidity of sugar juice and the large amount of non-sugar Increase the content of molecular substances, improve the purity of sucrose, and increase the yield of sucrose.
2.采用价格低廉,孔径更接近蔗糖的有机超滤膜进行蔗糖混汁的脱色过程,成本更低,脱色率更高,同时减少了石灰等澄清剂的添加,使所得产品具有更好的口感。2. The decolorization process of sucrose mixed juice is carried out by using an organic ultrafiltration membrane with a lower price and a pore size closer to that of sucrose. The cost is lower and the decolorization rate is higher. At the same time, the addition of clarifiers such as lime is reduced, so that the obtained product has a better taste. .
3.采用纳滤膜对脱色澄清后的清汁糖液进行浓缩,可以脱除糖液中的小分子物质,减少灰分,同时无相变的膜浓缩脱水过程相对于多效蒸发过程,可以大大节省糖液的脱水能耗。3. Using nanofiltration membrane to concentrate the decolorized and clarified clear juice sugar solution can remove small molecular substances in the sugar solution and reduce ash content. At the same time, the membrane concentration and dehydration process without phase change can greatly save energy compared with the multi-effect evaporation process. Dehydration energy consumption of sugar solution.
4.本发明所述工艺通过对脱色残液的处理以及其中夹带的蔗糖成分的回收,如膜脱色过程的脱色残液等可以有效的降低整个工艺的蔗糖损失,提高蔗糖的收率。4. The process of the present invention can effectively reduce the sucrose loss of the whole process and improve the yield of sucrose through the treatment of the decolorization raffinate and the recovery of the entrained sucrose components, such as the decolorization raffinate of the membrane decolorization process.
附图说明Description of drawings
图1.一种利用多级膜过滤技术精制甘蔗混合汁制糖工艺示意图Figure 1. Schematic diagram of a process for refining sugarcane mixed juice sugar by using multi-stage membrane filtration technology
具体实施方式Detailed ways
下面结合实施例对本发明做进一步说明。本发明所涉及的主题保护范围并非仅限于这些实施例。The present invention will be further described below in conjunction with embodiment. The scope of protection of the subject matter involved in the present invention is not limited to these examples.
实施例1:Example 1:
1)、200kg甘蔗混合汁原料,进入换热设备,由低温余热蒸汽或热水加热到60℃左右;1) 200kg of sugarcane mixed juice raw materials enter the heat exchange equipment and are heated to about 60°C by low-temperature waste heat steam or hot water;
2)、用氢氧化钠调节pH至7,经5微米的无纺布滤袋过滤除掉悬浮颗粒,得到过滤液A;2), adjust the pH to 7 with sodium hydroxide, filter through a 5 micron non-woven filter bag to remove suspended particles, and obtain the filtrate A;
3)、将所述过滤液A加压到0.1MPa后进入管式微滤膜组件,膜组件中选用0.2微米的有机微滤膜,在压力驱动下,所述过滤液A中的剩余悬浮颗粒、大分子物质、胶体等得到截留,蔗糖完全透过,得过滤液B;3), pressurize the filtrate A to 0.1MPa and then enter the tubular microfiltration membrane module. The organic microfiltration membrane of 0.2 microns is used in the membrane module. Driven by pressure, the remaining suspended particles in the filtrate A, Macromolecular substances, colloids, etc. are intercepted, sucrose is completely penetrated, and filtrate B is obtained;
4)、将所述过滤液B继续加热维持在60℃,加压到1.0MPa进入卷式超滤膜组件,膜组件中选用截留分子量3000Da的有机超滤膜,在压力驱动下,所述过滤液B中的剩余悬浮颗粒、大分子物质、胶体、葡聚糖、淀粉等得到部分或者全部截留,小于膜截留分子量的蔗糖得到完全透过,得过滤液C,分析结果表明,经过超滤膜,清汁的色度降低了70%;4) Continue to heat the filtrate B at 60°C, pressurize it to 1.0MPa and enter the roll-type ultrafiltration membrane module. The organic ultrafiltration membrane with a molecular weight cut-off of 3000Da is selected in the membrane module. Driven by pressure, the filtration The remaining suspended particles, macromolecular substances, colloids, dextran, starch, etc. in the solution B were partially or completely intercepted, and the sucrose smaller than the molecular weight cut-off of the membrane was completely permeated to obtain the filtrate C. The analysis results showed that after the ultrafiltration membrane , the chroma of clear juice is reduced by 70%;
5)、将脱色后的所述过滤液C加压到2.5MPa进入卷式纳滤膜组件,膜组件中选用截留分子量200Da的有机纳滤膜,在压力驱动下,水分和小分子有机酸、盐分等透过纳滤膜,蔗糖得到完全截留并实现浓缩,得到浓缩液;5), the decolorized filtrate C is pressurized to 2.5MPa and enters the roll-type nanofiltration membrane module. The organic nanofiltration membrane with a molecular weight cut-off of 200Da is used in the membrane module. Driven by pressure, moisture and small molecule organic acids, Salt, etc. pass through the nanofiltration membrane, and the sucrose is completely intercepted and concentrated to obtain a concentrated solution;
6)、纳滤浓缩后得到的所述浓缩液,蔗糖的浓度相对于普通化学法清净得到的清汁提高50%,纯度提高5.6%。实施例结果表明,本发明的工艺可以有效的降低糖汁的色度,提高蔗糖的纯度和浓度;6) In the concentrated solution obtained after concentration by nanofiltration, the concentration of sucrose is increased by 50% and the purity is increased by 5.6% compared with the clear juice obtained by ordinary chemical method. The results of the examples show that the process of the present invention can effectively reduce the chromaticity of the sugar juice and improve the purity and concentration of sucrose;
7)、将所述浓缩液进入浓缩器继续浓缩,浓缩到饱和浓度,降温结晶,离心固液分离后得到结晶糖产品。7) Put the concentrated solution into a concentrator to continue concentrating until it is concentrated to a saturated concentration, cool down to crystallize, and centrifuge to separate the solid and liquid to obtain a crystalline sugar product.
实施例2:Example 2:
1)、200kg甘蔗混合汁原料,进入换热设备,由低温余热蒸汽或热水加热到65℃;1) 200kg of sugarcane mixed juice raw materials enter the heat exchange equipment and are heated to 65°C by low-temperature waste heat steam or hot water;
2)、用氢氧化钙调节pH至8,经4000转/分钟的离心机除掉悬浮颗粒,得到过滤液A;2), adjust the pH to 8 with calcium hydroxide, remove the suspended particles through a centrifuge at 4000 rpm, and obtain the filtrate A;
3)、将所述过滤液A加压到0.05MPa后进入中空纤维微滤膜组件,膜组件中选用0.1微米的有机中空纤维微滤膜,在压力驱动下,所述过滤液A中的剩余悬浮颗粒、大分子物质、胶体等得到截留,蔗糖得到完全透过,得过滤液B;3), pressurize the filtrate A to 0.05MPa and enter the hollow fiber microfiltration membrane module. The organic hollow fiber microfiltration membrane of 0.1 micron is selected in the membrane module. Driven by pressure, the remaining Suspended particles, macromolecular substances, colloids, etc. are intercepted, sucrose is completely penetrated, and filtrate B is obtained;
4)、将所述过滤液B继续加热到65℃左右,加压到1.0MPa进入卷式超滤膜组件,膜组件中选用截留分子量2000Da的有机超滤膜,在压力驱动下,所述过滤液B中的剩余悬浮颗粒、大分子胶体、葡聚糖、淀粉等得到部分或者全部截留,小于膜截留分子量的蔗糖得到完全透过,得过滤液C,分析结果表明,经过超滤膜,清汁的色度降低了75%;4), continue to heat the filtrate B to about 65°C, pressurize it to 1.0 MPa, and enter the roll-type ultrafiltration membrane module. The organic ultrafiltration membrane with a molecular weight cut-off of 2000Da is used in the membrane module. Driven by pressure, the filtration The remaining suspended particles, macromolecular colloids, dextran, starch, etc. in the solution B were partially or completely intercepted, and the sucrose smaller than the molecular weight cut-off of the membrane was completely permeated to obtain the filtrate C. The analysis results showed that after passing through the ultrafiltration membrane, the clear juice Chroma is reduced by 75%;
5)、将脱色后的所述过滤液C加压到2.5MPa进入卷式纳滤膜组件,膜组件中选用截留分子量400Da的有机纳滤膜,在压力驱动下,水分和小分子有机酸、盐分等透过纳滤膜,蔗糖得到完全截留并实现浓缩,得到浓缩液;5), the filtrate C after decolorization is pressurized to 2.5MPa and enters the roll-type nanofiltration membrane module. The organic nanofiltration membrane with a molecular weight cut-off of 400Da is used in the membrane module. Driven by pressure, moisture and small molecule organic acids, Salt, etc. pass through the nanofiltration membrane, and the sucrose is completely intercepted and concentrated to obtain a concentrated solution;
6)、纳滤浓缩后得到的所述浓缩液,蔗糖的浓度相对于普通化学法清净得到的清汁提高48%,纯度提高5.8%。实施例结果表明,本发明的工艺可以有效的降低糖汁的色度,提高蔗糖的纯度和浓度;6) In the concentrated solution obtained after concentration by nanofiltration, the concentration of sucrose is increased by 48% and the purity is increased by 5.8% compared with the clear juice obtained by cleaning by common chemical methods. The results of the examples show that the process of the present invention can effectively reduce the chromaticity of the sugar juice and improve the purity and concentration of sucrose;
7)、将所述浓缩液进入浓缩器继续浓缩,浓缩到饱和浓度,降温结晶,离心固液分离后得到结晶糖产品。7) Put the concentrated solution into a concentrator to continue concentrating until it is concentrated to a saturated concentration, cool down to crystallize, and centrifuge to separate the solid and liquid to obtain a crystalline sugar product.
实施例3:Example 3:
1)、200kg甘蔗混合汁原料,进入换热设备,由低温余热蒸汽或热水加热到70℃;1) 200kg of sugarcane mixed juice raw materials enter the heat exchange equipment and are heated to 70°C by low-temperature waste heat steam or hot water;
2)、加碱调节pH值至7.5,经4000转/分钟的离心机除掉悬浮颗粒,得到过滤液A;2), add alkali to adjust the pH value to 7.5, remove suspended particles through a centrifuge at 4000 rpm, and obtain filtrate A;
3)、将所述过滤液A加压到0.05MPa进入中空纤维微滤膜组件,膜组件中选用0.1微米的有机中空纤维微滤膜,在压力驱动下,所述过滤液A中的剩余悬浮颗粒、大分子物质、胶体等得到截留,蔗糖得到完全透过,得过滤液B;3), the filtrate A is pressurized to 0.05MPa and enters the hollow fiber microfiltration membrane module, and the organic hollow fiber microfiltration membrane of 0.1 micron is used in the membrane module. Driven by pressure, the remaining suspended particles in the filtrate A Particles, macromolecular substances, colloids, etc. are intercepted, sucrose is completely penetrated, and filtrate B is obtained;
4)、将所述过滤液B继续加热到70℃左右,加压到1.0MPa进入卷式超滤膜组件,膜组件中选用截留分子量1000Da的有机超滤膜,在压力驱动下,所述过滤液B中的剩余悬浮颗粒、大分子胶体、葡聚糖、淀粉等得到部分或者全部截留,小于膜截留分子量的蔗糖得到完全透过,得过滤液C,分析结果表明,经过超滤膜,清汁的色度降低了78%;4), continue to heat the filtrate B to about 70°C, pressurize it to 1.0MPa, and enter the roll-type ultrafiltration membrane module. The organic ultrafiltration membrane with a molecular weight cut-off of 1000Da is selected in the membrane module. Driven by pressure, the filtration The remaining suspended particles, macromolecular colloids, dextran, starch, etc. in the solution B were partially or completely intercepted, and the sucrose smaller than the molecular weight cut-off of the membrane was completely permeated to obtain the filtrate C. The analysis results showed that after passing through the ultrafiltration membrane, the clear juice 78% reduction in chroma;
5)、将脱色后的所述过滤液C加压到2.5MPa进入卷式纳滤膜组件,膜组件中选用截留分子量600Da的有机纳滤膜,在压力驱动下,水分和小分子有机酸、盐分等透过纳滤膜,蔗糖得到完全截留并实现浓缩,得到浓缩液;5), the filtrate C after decolorization is pressurized to 2.5MPa and enters the roll-type nanofiltration membrane module. The organic nanofiltration membrane with a molecular weight cut-off of 600Da is used in the membrane module. Driven by pressure, moisture and small molecule organic acids, Salt, etc. pass through the nanofiltration membrane, and the sucrose is completely intercepted and concentrated to obtain a concentrated solution;
6)、纳滤浓缩后得到的所述浓缩液,蔗糖的浓度相对于普通化学法清净得到的清汁提高47%,纯度提高5.2%。实施例结果表明,新工艺可以有效的降低糖汁的色度,提高蔗糖的纯度和浓度。6) In the concentrated solution obtained after concentration by nanofiltration, the concentration of sucrose is increased by 47% and the purity is increased by 5.2% compared with the clear juice obtained by ordinary chemical method. The results of the examples show that the new process can effectively reduce the chroma of sugar juice and improve the purity and concentration of sucrose.
7)、将所述浓缩液进入浓缩器继续浓缩,浓缩到饱和浓度,降温结晶,离心固液分离后得到结晶糖产品。7) Put the concentrated solution into a concentrator to continue concentrating until it is concentrated to a saturated concentration, cool down to crystallize, and centrifuge to separate the solid and liquid to obtain a crystalline sugar product.
实施例4:Example 4:
1)、200kg甘蔗混合汁原料,进入换热设备,由低温余热蒸汽或热水加热到65℃;1) 200kg of sugarcane mixed juice raw materials enter the heat exchange equipment and are heated to 65°C by low-temperature waste heat steam or hot water;
2)、加碱调节pH值至7.5,经4000转/分钟的离心机除掉悬浮颗粒,得到过滤液A;2), add alkali to adjust the pH value to 7.5, remove suspended particles through a centrifuge at 4000 rpm, and obtain filtrate A;
3)、将所述过滤液A加压到0.05MPa进入中空纤维微滤膜组件,膜组件中选用0.22微米的有机中空纤维微滤膜,在压力驱动下,混汁中的剩余悬浮颗粒、大分子物质、胶体等得到截留,蔗糖得到完全透过,得过滤液B;3), the filtrate A is pressurized to 0.05MPa to enter the hollow fiber microfiltration membrane module, and the organic hollow fiber microfiltration membrane of 0.22 microns is selected in the membrane module. Driven by pressure, the remaining suspended particles in the mixed juice, large Molecular substances, colloids, etc. are intercepted, sucrose is completely penetrated, and filtrate B is obtained;
4)、将所述过滤液B继续加热到60℃左右,,加压到1.0MPa进入卷式超滤膜组件,膜组件中选用截留分子量2000Da的有机超滤膜,在压力驱动下,清汁中的剩余悬浮颗粒、大分子胶体、葡聚糖、淀粉等得到部分或者全部截留,小于膜截留分子量的蔗糖得到完全透过,得过滤液C,分析结果表明,经过超滤膜,清汁的色度降低了72%;4) Continue to heat the filtrate B to about 60°C, pressurize it to 1.0MPa and enter the roll-type ultrafiltration membrane module. The organic ultrafiltration membrane with a molecular weight cut-off of 2000Da is selected in the membrane module. Driven by pressure, the liquid in the clear juice The remaining suspended particles, macromolecular colloids, dextran, starch, etc. are partially or completely intercepted, and the sucrose less than the molecular weight cut-off of the membrane is completely permeated to obtain the filtrate C. The analysis results show that after passing through the ultrafiltration membrane, the color of the clear juice 72% reduction;
5)、将脱色后的所述过滤液C加压到2.5MPa进入卷式纳滤膜组件,膜组件中选用截留分子量200Da的有机纳滤膜,在压力驱动下,水分和小分子有机酸、盐分等透过纳滤膜,蔗糖得到完全截留并实现浓缩,得到浓缩液;5), the decolorized filtrate C is pressurized to 2.5MPa and enters the roll-type nanofiltration membrane module. The organic nanofiltration membrane with a molecular weight cut-off of 200Da is used in the membrane module. Driven by pressure, moisture and small molecule organic acids, Salt, etc. pass through the nanofiltration membrane, and the sucrose is completely intercepted and concentrated to obtain a concentrated solution;
6)、纳滤浓缩后得到的所述浓缩液,蔗糖的浓度相对于普通化学法清净得到的清汁提高50%,纯度提高4.6%。实施例结果表明,本发明的工艺可以有效的降低糖汁的色度,提高蔗糖的纯度和浓度。6) In the concentrated solution obtained after concentration by nanofiltration, the concentration of sucrose is increased by 50% and the purity is increased by 4.6% compared with the clear juice obtained by ordinary chemical method. The results of the examples show that the process of the present invention can effectively reduce the chroma of sugar juice and improve the purity and concentration of sucrose.
7)、将所述浓缩液进入浓缩器继续浓缩,浓缩到饱和浓度,降温结晶,离心固液分离后得到结晶糖产品。7) Put the concentrated solution into a concentrator to continue concentrating until it is concentrated to a saturated concentration, cool down to crystallize, and centrifuge to separate the solid and liquid to obtain a crystalline sugar product.
实施例5Example 5
1)、200kg甘蔗混汁原料,蔗糖含量为12%,经蒸汽或热水加热到60℃;1), 200kg sugarcane mixed juice raw material, the sucrose content is 12%, heated to 60 ℃ by steam or hot water;
2)、用氢氧化钠调节pH至7,经5微米的无纺布滤袋过滤除掉悬浮颗粒,得到过滤液A;2), adjust the pH to 7 with sodium hydroxide, filter through a 5 micron non-woven filter bag to remove suspended particles, and obtain the filtrate A;
3)、将所述过滤液A加压到0.1MPa后进入管式微滤膜组件,膜组件中选用0.2微米的有机微滤膜,在压力驱动下,混汁中的剩余悬浮颗粒、大分子物质、胶体等得到截留,蔗糖得到完全透过,得到过滤液B;3), the filtrate A is pressurized to 0.1MPa and then enters the tubular microfiltration membrane module. The organic microfiltration membrane of 0.2 microns is selected in the membrane module. Driven by pressure, the remaining suspended particles and macromolecular substances in the mixed juice , colloids, etc. are intercepted, sucrose is completely permeated, and filtrate B is obtained;
所述过滤液B质量为180kg,管膜残留液为20kg,直接抛弃;The quality of the filtrate B is 180kg, and the tube membrane residual liquid is 20kg, which is directly discarded;
4)、将180kg所述过渡液B继续加热维持在60℃左右,加压到1.0MPa进入卷式超滤膜组件,膜组件中选用截留分子量1000Da的有机超滤膜,在压力驱动下,所述过滤液B中的剩余悬浮颗粒、大分子物质、胶体、葡聚糖、淀粉等得到部分或者全部截留,小于膜截留分子量的蔗糖得到完全透过,得到过滤液C,所述过滤液C质量为162kg,卷膜残留液为18kg,直接抛弃。4) Continue heating 180kg of the transition liquid B to maintain it at about 60°C, pressurize it to 1.0MPa, and enter the roll-type ultrafiltration membrane module. The organic ultrafiltration membrane with a molecular weight cut-off of 1000Da is used in the membrane module. Driven by pressure, the The remaining suspended particles, macromolecular substances, colloids, dextran, starch, etc. in the above-mentioned filtrate B are partially or completely intercepted, and the sucrose less than the membrane molecular weight cut-off is completely permeated to obtain the filtrate C, and the quality of the filtrate C is It is 162kg, and the residual liquid of roll film is 18kg, which is discarded directly.
对比试验同样选用200kg甘蔗混合汁原料,预处理过程产生的20kg残液经过沉降及滤袋过滤后重新进入微滤过程的管膜进行处理,得到18kg透过液和2kg残留液,残留液直接抛弃。18kg透过液与180kg的透过液混合后进入超滤过程的卷膜脱色。卷膜处理后的透过液质量为178kg,卷膜残留液为20kg,残液加入1%的石灰和磷酸,加热到100℃煮沸10分钟后,沉降后取上清液并经滤袋过滤后重新进入微滤过程的管膜进行处理,处理后的管膜残留液为2kg直接抛弃,透过液质量为18kg,与超滤过程的进料液合并,以此来实现各过程残液的回收利用,进一步提高蔗糖收率。In the comparison test, 200kg of sugarcane mixed juice was also used as raw material. The 20kg residual liquid produced in the pretreatment process was settled and filtered through the filter bag, and then re-entered the tube membrane of the microfiltration process for treatment to obtain 18kg of permeate and 2kg of residual liquid, and the residual liquid was discarded directly. . 18kg of permeate is mixed with 180kg of permeate, and then enters the roll membrane decolorization of the ultrafiltration process. The mass of the permeated liquid after rolling membrane treatment is 178kg, and the residual liquid of rolling membrane is 20kg. Add 1% lime and phosphoric acid to the residual liquid, heat to 100°C and boil for 10 minutes. After settling, take the supernatant and filter it through the filter bag. Re-enter the tube membrane of the microfiltration process for treatment, the treated tube membrane residual liquid is 2kg and discarded directly, and the permeate quality is 18kg, which is combined with the feed liquid of the ultrafiltration process, so as to realize the recovery of the residual liquid in each process Utilize, further improve sucrose yield.
经过测试表明,经过残液处理后,两级膜工段的蔗糖回收率为95.6%,而未经处理的膜工艺,总的蔗糖回收率仅有81%。实施例结果表明,新工艺并采用残液回收工艺,可以有效的提高蔗糖的回收率。Tests show that after residual liquid treatment, the recovery rate of sucrose in the two-stage membrane section is 95.6%, while the total recovery rate of sucrose in the untreated membrane process is only 81%. The results of the examples show that the new process and the raffinate recovery process can effectively improve the recovery rate of sucrose.
以上所述内容仅为本发明的实施例,并非因此限制本发明的保护范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用其他相关的技术领域,均视为包括在本发明的专利保护范围内。The above-mentioned content is only an embodiment of the present invention, and does not limit the protection scope of the present invention. Anyone who uses the description of the present invention and the contents of the accompanying drawings to convert the equivalent structure or equivalent process, or directly or indirectly use other related technologies fields are considered to be included in the scope of patent protection of the present invention.
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107435084A (en) * | 2016-05-25 | 2017-12-05 | 中国科学院过程工程研究所 | It is a kind of that cane molasses are carried out with refined technique using multistage membrane filtration |
CN107937628A (en) * | 2017-05-23 | 2018-04-20 | 中国科学院过程工程研究所 | The cane sugar manufacture system and its processing method that a kind of full constituent utilizes |
CN108203739A (en) * | 2016-12-19 | 2018-06-26 | 湖南尔康制药股份有限公司 | A kind of process for purification of medical cane sugar |
CN108220485A (en) * | 2016-12-10 | 2018-06-29 | 湖南尔康制药股份有限公司 | A kind of method of gradient centrifugation extraction sucrose |
CN108588290A (en) * | 2018-05-10 | 2018-09-28 | 中国科学院过程工程研究所 | A system for graded recovery of pigment and sugar in molasses and its processing method |
CN108588289A (en) * | 2018-05-17 | 2018-09-28 | 中国科学院过程工程研究所 | A kind of antibiotic device, antibiotic method, embrane method cane sugar manufacture system and processing method for embrane method cane sugar manufacture system |
CN110016525A (en) * | 2019-04-10 | 2019-07-16 | 中国科学院近代物理研究所 | A kind of functional food sweet sorghum syrup and preparation method thereof |
CN115852065A (en) * | 2022-10-14 | 2023-03-28 | 广西新蜜技制糖有限责任公司 | Method for preparing white sugar by squeezing sugarcane |
CN117248080A (en) * | 2023-10-08 | 2023-12-19 | 安徽金禾实业股份有限公司 | Sucrose recovery method in fructo-oligosaccharide production |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1673393A (en) * | 2004-03-24 | 2005-09-28 | 林坤华 | Physical method of clearing decolorizing and desalting for sugar mixed juice |
CN102659855A (en) * | 2012-05-16 | 2012-09-12 | 成都连接流体分离科技有限公司 | Energy-saving environment-friendly sucrose production process |
CN103710469A (en) * | 2013-12-26 | 2014-04-09 | 江苏久吾高科技股份有限公司 | Production technique and device of directly edible edible syrup |
CN103725802A (en) * | 2013-12-27 | 2014-04-16 | 江苏久吾高科技股份有限公司 | Technology for refining saccharose |
CN103866052A (en) * | 2014-03-11 | 2014-06-18 | 广西大学 | Sulfur-free clarifying method for cane sugar manufacture |
CN104404174A (en) * | 2014-10-31 | 2015-03-11 | 广西大学 | Membrane technology-based refined sugar clear-syrup impurity removal and decoloring technology |
CN104805226A (en) * | 2015-04-27 | 2015-07-29 | 广西大学 | Sugar manufacture clarification process |
-
2015
- 2015-08-10 CN CN201510486534.4A patent/CN105063247B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1673393A (en) * | 2004-03-24 | 2005-09-28 | 林坤华 | Physical method of clearing decolorizing and desalting for sugar mixed juice |
CN102659855A (en) * | 2012-05-16 | 2012-09-12 | 成都连接流体分离科技有限公司 | Energy-saving environment-friendly sucrose production process |
CN103710469A (en) * | 2013-12-26 | 2014-04-09 | 江苏久吾高科技股份有限公司 | Production technique and device of directly edible edible syrup |
CN103725802A (en) * | 2013-12-27 | 2014-04-16 | 江苏久吾高科技股份有限公司 | Technology for refining saccharose |
CN103866052A (en) * | 2014-03-11 | 2014-06-18 | 广西大学 | Sulfur-free clarifying method for cane sugar manufacture |
CN104404174A (en) * | 2014-10-31 | 2015-03-11 | 广西大学 | Membrane technology-based refined sugar clear-syrup impurity removal and decoloring technology |
CN104805226A (en) * | 2015-04-27 | 2015-07-29 | 广西大学 | Sugar manufacture clarification process |
Non-Patent Citations (2)
Title |
---|
熊小兵等: "膜技术在制糖工业上的研究和应用", 《中国甜菜糖业》 * |
陈山等: "超滤技术在甘蔗糖厂的试验研究", 《广西蔗糖》 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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WO2018214643A1 (en) * | 2017-05-23 | 2018-11-29 | 中国科学院过程工程研究所 | Sugar production system utilizing all components of sugarcane and treatment method thereof |
AU2018273522B2 (en) * | 2017-05-23 | 2020-11-12 | Institute Of Process Engineering, Chinese Academy Of Sciences | Sugar production system utilizing all components of sugarcane and treatment method thereof |
CN108588290A (en) * | 2018-05-10 | 2018-09-28 | 中国科学院过程工程研究所 | A system for graded recovery of pigment and sugar in molasses and its processing method |
CN108588289A (en) * | 2018-05-17 | 2018-09-28 | 中国科学院过程工程研究所 | A kind of antibiotic device, antibiotic method, embrane method cane sugar manufacture system and processing method for embrane method cane sugar manufacture system |
CN110016525A (en) * | 2019-04-10 | 2019-07-16 | 中国科学院近代物理研究所 | A kind of functional food sweet sorghum syrup and preparation method thereof |
CN115852065A (en) * | 2022-10-14 | 2023-03-28 | 广西新蜜技制糖有限责任公司 | Method for preparing white sugar by squeezing sugarcane |
CN117248080A (en) * | 2023-10-08 | 2023-12-19 | 安徽金禾实业股份有限公司 | Sucrose recovery method in fructo-oligosaccharide production |
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