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Biomass hydrothermal pretreatment reactor

A biomass and reactor technology, applied in the field of biomass pretreatment reactors, can solve problems such as the lack of much progress in the development of reactors, and achieve the effects of reducing side reactions, increasing flexibility, and enhancing applicability

Inactive Publication Date: 2014-07-30
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there has not been much progress in the development of reactors specially used for hydrothermal pretreatment, and it is necessary to further develop economical and efficient special hydrothermal pretreatment reactors.

Method used

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  • Biomass hydrothermal pretreatment reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] as attached figure 1 After adding the corn stalks into the reaction kettle (6), according to the requirement of adjusting the water content, a certain amount of tap water is added to adjust the water content of the material to 92% (w / w). Cover the kettle cover (4), tighten the bolts on the flange (5), and insert the temperature sensor probe into the temperature measuring tube (12). Turn on the magnetic stirring system (1), drive the stirring paddle (10) - the six curved blades turn on the turbine type, and control the stirring speed at 50rpm, so that the materials and water are evenly mixed. After shaking the handle (23), the lifting fixed sleeve 1 (15), the lifting fixed sleeve 2 (16) and the lifting screw (17) to the top of the oil bath (11) that has risen to 250 ° C, then use the lifting screw to shake the handle ( 23), the lifting fixed sleeve 1 (15), the lifting fixed sleeve 2 (16) and the lifting screw (17) slowly put the reactor into the oil bath. When the temp...

Embodiment 2

[0023] as attached figure 1 After adding the corn stalks into the reaction kettle (6), according to the requirement of adjusting the water content, a certain amount of tap water is added to adjust the water content of the material to 85% (w / w). Cover the kettle cover (4), tighten the bolts on the flange (5), and insert the temperature sensor probe into the temperature measuring tube (12). Turn on the magnetic stirring system (1), drive the stirring paddle (10) - Bruma gold type, and control the stirring speed at 80rpm, so that the material and water are evenly mixed. After shaking the handle (23), the lifting fixed cover 1 (15), the lifting fixed cover 2 (16) and the lifting screw (17) to the top of the oil bath (11) that has risen to 300 ° C, then use the lifting screw to shake the handle ( 23), the lifting fixed sleeve 1 (15), the lifting fixed sleeve 2 (16) and the lifting screw (17) slowly put the reactor into the oil bath. When the temperature of the reaction kettle ros...

Embodiment 3

[0026] as attached figure 1After adding the corn stalks into the reaction kettle (6), according to the requirement of adjusting the water content, a certain amount of tap water is added to adjust the water content of the material to 80% (w / w). Cover the kettle cover (4), tighten the bolts on the flange (5), and insert the temperature sensor probe into the temperature measuring tube (12). Turn on the magnetic stirring system (1), drive the stirring paddle (10) - three-blade propulsion type, and control the stirring speed at 60rpm, so that the materials and water are evenly mixed. After shaking the handle (23), the lifting fixed cover 1 (15), the lifting fixed cover 2 (16) and the lifting screw (17) to the top of the oil bath (11) that has risen to 350 ° C, then use the lifting screw to shake the handle ( 23), the lifting fixed sleeve 1 (15), the lifting fixed sleeve 2 (16) and the lifting screw (17) slowly put the reactor into the oil bath. When the temperature of the reactio...

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Abstract

The invention discloses a biomass hydrothermal pretreatment reactor which comprises a heating and temperature control system, a hydrothermal pretreatment system, a magnetic stirring system, a cooling system and a reaction kettle lifting control system. The reactor disclosed by the invention can realize efficient hydrothermal pretreatment on biomass. The reactor is adjustable in three stirring modes for processing different kinds of biomass, and thus the practicability and treatment effect are enhanced; meanwhile, by adopting a dual-cooling and quick heating system, the time for reaching pretreatment reaction and the cooling time after the reaction ends are effectively shortened, the occurrence of side reaction is effectively reduced, and the pretreatment efficiency is increased; the reactor is flexible to operate, and a kettle body and a kettle cover can be lifted and lowered separately or in a combined manner; and moreover, the positions of the heating system and the cooling system of the reactor can be exchanged, and thus the system safety and convenience in operation are improved.

Description

technical field [0001] The invention belongs to the field of biochemical industry, in particular to a biomass pretreatment reactor. Background technique [0002] Biomass is an abundant, inexpensive renewable resource. A utilization route that researchers all over the world are studying is to convert biomass into fermentable sugar through enzymatic hydrolysis, and then further ferment it into alcohol. Enzymatic hydrolysis started in the 1960s. Using enzymes as catalysts at lower temperatures enables specific conversion of cellulose, which has higher production potential and reduces the generation of toxic substances in acid hydrolysis. [0003] However, since the cellulose in the natural straw is surrounded by a matrix formed by hemicellulose and lignin and the crystal structure of the cellulose itself, it is difficult for the enzyme preparation to contact with the cellulose, which directly affects the enzymatic hydrolysis efficiency and the concentration of the subsequent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/00
Inventor 徐建陈洪章
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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