A method for catalytic conversion of biomass

A technology for catalytic conversion and biomass, applied in the field of effective utilization of biomass resources, to achieve the effect of improving catalytic effect, reducing reprocessing cost and improving utilization rate

Active Publication Date: 2018-07-03
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No relevant research has been reported so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method for the catalytic conversion of biomass in this example, the steps are as follows: (1) First, naturally ferment the collected tofu swill for 1 day, and then crush the corn stalks to a particle size of less than 4 cm after natural air-drying; (2) combine the fermented tofu swill The final corn stalks are mixed according to the mass ratio of 1:1 and sent to the reactor; (3) Heating the reactor with the mixture of tofu swill and corn stalks for carbonization reaction, the first stage reaction temperature is 175°C, and the reaction time is 10 minutes , The reaction temperature of the second stage is 225°C, and the reaction time is 3 hours. After the reaction is completed, the solid product obtained by cooling, collecting, and filtering can be used as a fuel or a chemical raw material.

[0021] It can be known through detection and analysis that the carbon content of the solid product of this embodiment is 59.12%.

Embodiment 2

[0023] The method for the catalytic conversion of biomass in this example, the steps are as follows: (1) First, naturally ferment the collected tofu swill for 2 days, and the wheat straw is naturally air-dried and crushed to a particle size of less than 4 cm; (2) Fermented tofu swill and crushed The final wheat straw is mixed according to the mass ratio of 10:1 and sent into the reactor; (3) Heating the reactor containing the mixture of tofu swill and wheat straw for carbonization reaction, the first stage reaction temperature is 195°C, and the reaction time is 60 minutes , The reaction temperature of the second stage is 255°C, and the reaction time is 8 hours. After the reaction is completed, the solid product obtained by cooling, collecting, and filtering can be used as a fuel or a chemical raw material.

[0024] It can be seen through detection and analysis that the carbon content of the solid product of this embodiment is 65.31%.

Embodiment 3

[0026] The method for the catalytic conversion of biomass in this example, the steps are as follows: (1) Firstly, the collected tofu swill is naturally fermented for 3 days, and the sawdust is naturally air-dried and crushed to a particle size of less than 4 cm; (2) The fermented tofu swill is mixed with the crushed The wood chips are mixed according to the mass ratio of 1:1, and sent into the reactor; (3) Heating the reactor with the mixed material of tofu swill and wood chips for carbonization reaction. The stage reaction temperature is 225°C, and the reaction time is 3 hours. After the reaction is completed, the solid product obtained by cooling, collecting, filtering and separating can be used as a fuel or a chemical raw material.

[0027] It can be seen through detection and analysis that the carbon content of the solid product of this embodiment is 65.12%.

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Abstract

The invention discloses a method for catalytic conversion of biomass. The method comprises steps as follows: (1), collected bean curd swill is naturally fermented, and biomass is naturally air-dried and then broken; (2), the fermented bean curd swill and the broken biomass are mixed in the mass ratio being (1:1)-(10:1) and sent to a reaction kettle; (3), the reaction kettle filled with a mixture of the bean curd swill and the biomass is heated for carbonization, and after the reaction ends, and solid products are obtained through cooling, collection, filtration and separation and can be taken as fuel or chemical raw materials. The fermented bean curd swill is taken as a solvent, biomass is subjected to hydrothermal conversion, and the catalytic action of rich lactic acid and succinic acid contained in the bean curd swill is sufficiently exerted. The hydrothermal conversion technology is controlled at the two-stage reaction temperatures, the lactic acid and the succinic acid in the fermented bean curd swill are dissolved in water and can be sufficiently spread into the biomass, and the catalytic effect of the bean curd swill is improved.

Description

technical field [0001] The invention belongs to the field of effective utilization of biomass resources, in particular to a method for catalytic conversion of biomass. Background technique [0002] Biomass mainly comes from agricultural waste, forestry waste and urban greening waste. It has the characteristics of wide distribution, huge output, environmental friendliness and renewability, and is an important resource of potential energy and chemical raw materials. So far, the treatment and utilization technologies of biomass at home and abroad mainly include physical transformation, chemical transformation and biological transformation. Hydrothermal conversion is a treatment technology that uses high temperature and high pressure water to make biomass undergo complex physical and chemical reactions in a closed reactor. Due to its simple operation, mild reaction conditions, and no drying of raw materials, it has attracted more and more attention. [0003] Water is an essent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02C10B57/04C10B57/02B01J19/00C10L5/44
CPCY02E50/10Y02E50/30
Inventor 郭淑青董向元
Owner ZHONGYUAN ENGINEERING COLLEGE
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