Pilot plant test combination device for sugar alcohol production
By designing a pilot-scale combined unit for sugar alcohol production, the problem that existing equipment cannot meet the diverse process requirements was solved, and flexible connection and adaptability verification of multiple processes were achieved, reducing industrialization risks and equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-10
AI Technical Summary
Existing pilot-scale verification equipment cannot meet the diverse requirements of sugar alcohol production processes. In particular, the variety and lack of universality of reaction vessel types lead to increased space occupation and costs, affecting the preparation of pilot-scale feed solutions.
Design a pilot-scale combined unit for sugar alcohol production, including pretreatment, refining, concentration, purification and finished product units. Connect the units through a temporary storage module, and introduce distribution pipes and valve structures in the reactor to achieve flexible connection and adaptability of various processes.
It significantly reduces the risks of industrial production, improves the utilization rate and adaptability of the reactor, is suitable for the verification and optimization of different processes, and reduces the investment cost of pilot-scale equipment.
Smart Images
Figure CN224100683U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sugar alcohol production equipment technical field especially relates to a pilot combination device of sugar alcohol production. BACKGROUND
[0002] Sugar alcohol is a kind of polyhydric alcohol, contains two or more hydroxyl, although not sugar but has certain sugar attribute. Sugar alcohol has high stability to acid and heat, can be used as low heat value food sweetener. Sugar alcohol is not used by microorganism in oral cavity, is good material for preventing dental caries. Sugar alcohol has no influence on the rise of blood sugar value of human body, and can provide certain heat for diabetic, so, can be used as nutritional sweetener for providing heat for diabetic. General sugar alcohol product includes functional sugar alcohol and functional monosaccharide, specific variety includes xylitol, erythritol, lactitol, sorbitol, mannitol, maltitol, isomaltitol, low oligomaltitol, fructose, L-arabinose, tagatose, xylose and other products. These products are widely used in medicine, chemical industry, light industry, food industry and other industries, and can bring many benefits to health as sucrose substitute, and the market prospect is very broad.
[0003] In recent years, with the rapid development of production technology, subject intersection, industry mutual fusion, technology mutual learning have become the norm, and different raw materials are used to prepare sugar alcohol products, and different auxiliary materials are used in the preparation process of sugar alcohol products. For example, corn cob is traditionally used as raw material to prepare xylitol, and in recent years, bamboo residue, bagasse, pith, papermaking wastewater are used as raw material to prepare xylitol, and more and more researches are carried out. The catalyst used in hydrogenation process has also developed from binary catalyst to ternary and quaternary catalyst with higher activity. The chromatographic separation adsorption resin used in chromatographic separation has also been expanded from the commonly used calcium type to sodium type and potassium type. These technologies are still in the laboratory research stage, and there is no report on the pilot test verification and industrial test of these technologies using pilot device. In addition, generally speaking, at least thousands of hours of pilot test verification is one of the necessary processes for technology industrialization. Only through multiple pilot test verification and mastering more realistic, reliable and stable pilot test data, the risk brought by technology industrialization can be reduced.
[0004] Due to the diversity of current sugar alcohol products, their production processes are also quite different, involving hydrolysis, enzymatic hydrolysis, fermentation, hydrogenation and other production methods, as well as ion exchange, chromatographic separation, decolorization, membrane filtration and other purification processes. However, the current verification pilot production equipment cannot meet all process requirements, especially the reaction kettle, which needs to be equipped with multiple types of reaction kettles such as hydrolysis kettle, fermentation tank, hydrogenation reaction kettle and enzymatic hydrolysis tank, which not only occupies space but also increases cost, and cannot be used universally between each other, affecting the preparation of pilot liquid. SUMMARY
[0005] The utility model discloses a pilot production combined device of sugar alcohol production to solve the problems in prior art.
[0006] The utility model solves technical scheme that its technical problem adopts:
[0007] A pilot production combined device of sugar alcohol production, including preprocessing unit, a plurality of temporary storage module, preprocessing unit is connected with the refining unit through temporary storage module, and the refining unit is connected with the concentration unit through temporary storage module, and the concentration unit is connected with the purification unit or finished product unit through temporary storage module, and the purification unit is connected with temporary storage module;
[0008] Temporary storage module includes intermediate tank, and the intermediate pump is connected with the pipeline of the output end of intermediate tank, and the input end of intermediate tank and the output end of intermediate pump are all connected with the hose and the quick connector installed on the hose, and temporary storage module is connected with each unit through the hose and the quick connector;
[0009] Preprocessing unit is provided with at least one reaction kettle, and the distribution pipe is movably inserted in the reaction kettle, the outer ring pipe is movably connected with the distribution pipe, and the two valves are communicated on the outer ring pipe.
[0010] Further, the reaction kettle is provided with a jacket, a detachable self-suction stirrer and a coil pipe, four communication pipes penetrating through the reaction kettle are fixed to the lower part of the reaction kettle, the four communication pipes are arranged in a ring shape, the four communication pipes are connected to the outer ring pipe, and valves are arranged on the communication pipes.
[0011] Further, the distribution pipe is in the shape of a ring pipe, a plurality of through holes are formed in the distribution pipe, four insertion pipes are communicated with the distribution pipe, and the four insertion pipes are inserted into the four communication pipes of the reaction kettle respectively.
[0012] Further, the connecting pipes are fixed to the both sides of the upper part of the reaction kettle, the both ends of the coil pipe are flange-connected to the two connecting pipes respectively, and valves are arranged on the connecting pipes.
[0013] Further, the refining unit includes a decolorizing device, a membrane filtration device, an ion exchange device and an electrodialysis device, quick connectors are arranged on the input end and the output end of the decolorizing device, the membrane filtration device, the ion exchange device and the electrodialysis device, any one of the decolorizing device, the membrane filtration device, the ion exchange device and the electrodialysis device in the preprocessing unit is connected to the temporary storage module, and any one of the decolorizing device, the membrane filtration device, the ion exchange device and the electrodialysis device is connected to the concentration unit through the temporary storage module.
[0014] Further, the concentration unit includes a membrane concentration device and an evaporator, quick connectors are arranged on the input end and the output end of the membrane concentration device and the evaporator, the membrane concentration device is connected to the evaporator through the hose and the quick connector, any one of the membrane concentration device and the evaporator in the refining unit is connected to the temporary storage module, and any one of the membrane concentration device and the evaporator is connected to the concentration unit through the temporary storage module.
[0015] Further, the purification unit comprises SMB, SSMB, and quick couplings are installed at the input end and the output end of the SMB and the SSMB, the concentrating unit is connected with any one of the SMB and the SSMB through the temporary storage module, and any one of the SMB and the SSMB is connected with the temporary storage module.
[0016] Further, the finished product unit comprises a crystallization tank, a solid-liquid separation mechanism and a spray dryer, and the concentrating unit is connected with the crystallization tank of the finished product unit through the temporary storage module.
[0017] The utility model has the following beneficial effects:
[0018] 1. The utility model discloses a new raw material selection, new auxiliary material verification, process parameter adjustment, resin selection and the like in the production process of xylose, xylitol, erythritol, maltose and the like can be verified, and the risk brought by industrialized production conversion can be significantly reduced.
[0019] 2. The utility model is suitable for research institutes, enterprises, schools and the like to carry out amplification process test and collection and optimization of various process performances of sugar alcohol production, can change the connection mode according to different process requirements, and has strong applicability.
[0020] 3. The utility model can investigate and verify the influencing factors in each process unit and between each process unit of relevant sugar alcohol production.
[0021] 4. Through the implementation of the pilot combination device for sugar alcohol production, various new technologies, new processes and new materials about sugar alcohol production can be developed, and finally the technical upgrading of the sugar alcohol production process is promoted.
[0022] 5. The reaction kettle can meet the requirements of various different production processes such as hydrolysis, hydrogenation, fermentation and enzymolysis, and does not need to prepare multiple reaction kettles specially used for hydrolysis, hydrogenation, fermentation and enzymolysis. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 Fig. 1 is a structural schematic diagram of an embodiment of the utility model.
[0024] Figure 2 Fig. 2 is a cross-sectional structural schematic diagram of the reaction kettle of the utility model.
[0025] Figure 3 Fig. 3 is a structural schematic diagram of an embodiment of the utility model.
[0026] Figure 4 Fig. 4 is a structural schematic diagram of an embodiment of the utility model.
[0027] Figure 5 Fig. 5 is a structural schematic diagram of an embodiment of the utility model.
[0028] Figure 6This is a schematic diagram of the structure of Embodiment 4 of this utility model.
[0029] Figure 7 This is a schematic diagram of the structure of embodiment 5 of this utility model.
[0030] The components include: 1. Pretreatment unit; 2. Refining unit; 3. Concentration unit; 4. Purification unit; 5. Finished product unit; 6. Temporary storage module; 7. Intermediate tank; 8. Intermediate pump; 9. Hoses; 10. Quick connectors; 11. Reactor; 12. Distribution pipe; 13. Outer ring pipe; 14. Valve; 15. Jacket; 16. Self-priming stirrer; 17. Coil; 18. Connecting pipe; 19. Through hole; 20. Insertion pipe; 21. Connecting pipe; 22. Decolorization equipment; 23. Membrane filtration equipment; 24. Ion exchange equipment; 25. Electrodialysis; 26. Membrane concentration; 27. Evaporator; 28. SMB; 29. SSMB; 30. Crystallization tank; 31. Solid-liquid separation mechanism; 32. Spray dryer. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0032] Example 1:
[0033] like Figures 1-2 As shown, taking the pilot production of xylose as an example, if agricultural and forestry waste such as corn cobs, bamboo, and bagasse are used as raw materials, the steam pipe is connected to one of the valves 14 of the outer ring pipe 13, and the other valve 14 is the output end of the pretreatment unit 1. It is connected to the intermediate tank 7 through the hose 9 and quick connector 10. The self-priming stirrer 16 and coil 17 in the reactor 11 are disassembled to form a hydrolysis reactor using agricultural and forestry waste as raw materials. The upper end of the reactor 11 is connected to several interfaces for water inlet, feed inlet, hydrolysis agent inlet, etc. This is prior art and is not shown in the accompanying drawings of the specification, but those skilled in the art are clear about its structure and how to use it.
[0034] After the raw materials are put into the reactor 11, the valve 14 on the outer ring pipe 13 is opened. Steam enters the reactor 11 from the outer ring pipe 13 through the through hole 19 on the distribution pipe 12 to heat and pressurize the raw materials. Since the distribution pipe 12 is movably inserted into the connecting pipe 18 through the insertion pipe 20, the high-pressure steam can vibrate when it enters, preventing the material from blocking the through hole 19 and facilitating the discharge of the hydrolysate from the outer ring pipe 13 to the intermediate tank 7.
[0035] The refining of the hydrolysis liquid in this embodiment uses a full-process pilot experiment, that is, the membrane filtration device 23, the decolorizing device 22, the membrane concentration 26, and the ion exchange device 24 are connected in series through the hose 9, the input end of the membrane filtration device 23 is the input end of the refining unit 2, the output end of the ion exchange device 24 is the output end of the refining unit 2, the pretreatment unit 1 is connected to the membrane filtration device 23 through the temporary storage module 6, and the ion exchange device 24 is connected to the concentration unit 3 through the temporary storage module 6. According to the process, the decolorizing device 22 and the ion exchange device 24 can also be connected in series through the hose 9, the input end of the decolorizing device 22 is the input end of the refining unit 2, and the output end of the ion exchange device 24 is the output end of the refining unit 2, so that the pretreatment unit 1 is connected to the decolorizing device 22 through the temporary storage module 6, and the ion exchange device 24 is connected to the concentration unit 3 through the temporary storage module 6.
[0036] The refined liquid is concentrated by the membrane concentration 26 and the evaporator 27, and then crystallized in the crystallization tank 30. After centrifugation by the centrifuge of the solid-liquid separation mechanism 31, wet xylose and mother liquor are obtained. The mother liquor is stored in the mother liquor tank of the solid-liquid separation mechanism 31. The solid-liquid separation mechanism 31 in the production of sugar alcohols generally includes a centrifuge and a mother liquor tank, which are prior art and will not be described in detail here.
[0037] Embodiment 2:
[0038] As shown in Figure 3 , this embodiment takes the co-production of xylose and arabinose as an example. The mother liquor tank of the solid-liquid separation mechanism 31 in embodiment 1 is connected to the SMB 28 through the hose 9 as the output end. At this time, the input and output ends of the SMB 28 are the input and output ends of the purification unit 4. The SMB 28 is connected to the decolorizing device 22 through the temporary storage module 6. The decolorizing device 22 is connected to the ion exchange device 24 through the hose 9. The ion exchange device 24 is connected to the evaporator through the temporary storage module 6. The evaporator is connected to the crystallization tank 30, the solid-liquid separation mechanism 31, and the spray dryer 32 in sequence. Thus, a pilot production line for preparing arabinose from xylose mother liquor is formed.
[0039] Embodiment 3:
[0040] As shown in Figures 4-5As shown, this embodiment takes the production of xylitol from xylose hydrogenation as an example. One valve 14 of the outer ring pipe 13 is connected to the hydrogen pipeline, and the other valve 14 is closed. The self-priming stirrer 16 and the coil 17 are installed inside the reactor 11. The steam pipe is connected to the jacket 15 and the coil 17, thus forming a hydrogenation reactor for hydrogenation. The discharge end at the bottom of the reactor 11 is the output end. The reactor 11 is connected to the decolorization equipment 22 through the temporary storage module 6. The decolorization equipment 22 is connected to the ion exchange equipment 24 through the hose 9. The ion exchange equipment 24 is connected to the evaporator through the temporary storage module 6. The evaporator is sequentially connected to the temporary storage module 6, the crystallization tank 30, the solid-liquid separation mechanism 31, and the spray dryer 32, thus forming a pilot production line for xylitol. The xylitol mother liquor is stored in the mother liquor tank of the solid-liquid separation mechanism 31.
[0041] Example 4:
[0042] like Figure 6 As shown, this embodiment takes the production of erythritol as an example. One valve 14 of the outer ring pipe 13 is connected to the oxygen pipeline, and the other valve 14 is closed. The self-priming stirrer 16 and the coil 17 are installed in the reactor 11. The steam pipe and the cooling water pipe are connected to the jacket 15 and the coil 17 in parallel, thus making the reactor 11 a fermentation vessel for fermentation. The discharge end at the bottom of the reactor 11 is the output end. The reactor 11 is connected to the membrane filtration device 23 through the temporary storage module 6. The membrane filtration device 23 is connected to the decolorization device 22 through the hose 9. The decolorization device 22 is connected to the ion exchange device 24 through the hose 9. The ion exchange device 24 is connected to the evaporator through the temporary storage module 6. The evaporator is connected in sequence to the temporary storage module 6, the crystallization tank 30, the solid-liquid separation mechanism 31, and the spray dryer 32, thus forming a pilot production line for erythritol.
[0043] Example 5:
[0044] like Figure 7 As shown, this embodiment takes the production of isomaltose as an example. One valve 14 of the outer ring pipe 13 is connected to the oxygen pipeline, and the other valve 14 is closed. The self-priming stirrer 16 and the coil 17 are installed in the reactor 11. The steam pipe and the cooling water pipe are connected to the jacket 15 and the coil 17 in parallel, thus making the reactor 11 an enzymatic hydrolysis reactor for enzymatic hydrolysis. The discharge end at the bottom of the reactor 11 is the output end. The reactor 11 is connected to the membrane filtration device 23 through the temporary storage module 6. The membrane filtration device 23 is connected to the decolorization device 22 through the hose 9. The decolorization device 22 is connected to the ion exchange device 24 through the hose 9. The ion exchange device 24 is connected to the evaporator through the temporary storage module 6. The evaporator is connected to the temporary storage module 6, thus forming a pilot production line for isomaltose solution.
[0045] The working principle of the utility model is: the sugar alcohol pilot plant equipment is divided into several units, the units are connected through the hose 9, the quick connector 10, can be selectively connected according to different processes, and the functionality of the reaction kettle 11 is increased, so that it can carry out hydrolysis, hydrogenation, fermentation, enzymolysis, thereby improving the utilization rate and adaptability of the reaction kettle 11, and reducing the investment cost of the pilot plant equipment.
[0046] The above embodiment only describes the preferred embodiment of the utility model, and does not limit the concept and scope of the utility model. Without departing from the design concept of the utility model, various modifications and improvements of the technical scheme of the utility model made by the person skilled in the art shall fall within the protection scope of the utility model.
[0047] The technical, shape and structure parts not described in detail in the utility model are well-known technologies.
Claims
1. A pilot plant combined apparatus for the production of sugar alcohols, characterized by, It comprises a pretreatment unit, several temporary storage modules, the pretreatment unit is connected with a refining unit through a temporary storage module, the refining unit is connected with a concentration unit through a temporary storage module, the concentration unit is connected with a purification unit or a finished product unit through a temporary storage module, and the purification unit is connected with a temporary storage module; The temporary storage module comprises an intermediate tank, a pipeline connected with an intermediate pump at an output end of the intermediate tank, and a hose and a quick connector mounted on the hose and connected with an input end of the intermediate tank and an output end of the intermediate tank; The pretreatment unit is provided with at least one reaction kettle, a distribution pipe movably inserted in the reaction kettle, an outer ring pipe movably connected with the distribution pipe, and two valves communicated on the outer ring pipe, and the two valves are provided with quick connectors.
2. The pilot plant combined apparatus for sugar alcohol production according to claim 1, characterized by, The reaction kettle is provided with a jacket, a detachable self-suction stirrer and a coil pipe, four communication pipes penetrating through the reaction kettle are fixed at the lower part of the reaction kettle, the four communication pipes are arranged in a ring shape, the four communication pipes are commonly communicated with the outer ring pipe, and valves are arranged on the communication pipes.
3. The pilot plant combined apparatus for sugar alcohol production according to claim 2, characterized in that, The distribution pipe is in the shape of a ring pipe, a plurality of through holes are formed in the distribution pipe, and four insertion pipes are communicated with the distribution pipe and are respectively inserted into the four communication pipes of the reaction kettle.
4. The pilot plant combined apparatus for sugar alcohol production according to claim 2, characterized by, Two connecting pipes are fixedly penetrated through the reaction kettle at both sides of the upper part of the reaction kettle, the two ends of the coil pipe are respectively flange-connected to the two connecting pipes, and valves are arranged on the connecting pipes.
5. The pilot plant combined apparatus for sugar alcohol production according to claim 1, characterized by, The refining unit comprises a decolorizing device, a membrane filtration device, an ion exchange device and an electrodialysis device, quick connectors are arranged on the input end and the output end of the decolorizing device, the membrane filtration device, the ion exchange device and the electrodialysis device, any one of the decolorizing device, the membrane filtration device, the ion exchange device and the electrodialysis device in the pretreatment unit is connected with the concentration unit through a temporary storage module.
6. The pilot plant combined apparatus for sugar alcohol production according to claim 1, characterized by, The concentration unit comprises a membrane concentration device and an evaporator, quick connectors are arranged on the input end and the output end of the membrane concentration device and the evaporator, the membrane concentration device is connected with the evaporator through a hose and a quick connector, any one of the membrane concentration device and the evaporator in the refining unit is connected with the concentration unit through a temporary storage module.
7. The pilot plant combined apparatus for sugar alcohol production according to claim 1, characterized by, The purification unit comprises an SMB and an SSMB, quick connectors are arranged on the input end and the output end of the SMB and the SSMB, any one of the SMB and the SSMB in the concentration unit is connected with a temporary storage module.
8. The pilot plant combined apparatus for sugar alcohol production according to claim 1, characterized by, The finished product unit comprises a crystallization tank, a solid-liquid separation mechanism and a spray dryer, and the crystallization tank of the finished product unit is connected with the concentration unit through a temporary storage module.