Comprehensive utilization method of biomass raw material

A biomass raw material and process technology, which is applied in the preparation/purification of carbon, pulping with organic solvents, non-woody plant/crop pulp, etc., can solve the problems of low component yield and low purity, and achieve extraction efficiency High, reduce damage, shorten the effect of cooking time

Active Publication Date: 2014-07-02
JINAN SHENGQUAN GROUP SHARE HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] For this reason, the technical problem to be solved by the present invention lies in the comprehensive extraction process route of biomass raw materials in the prior art, the problems of low yiel

Method used

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  • Comprehensive utilization method of biomass raw material

Examples

Experimental program
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Example Embodiment

[0061] Lignin extraction rate = lignin quality / (raw material quality × lignin content in raw material) × 100% Example 1

[0062] In this embodiment, the biomass raw material is reed (mass component composition: cellulose 49.5%, hemicellulose content 22.7%, lignin 18.9%), first crushed, washed with water, dusted and crushed to a particle size of 2 cm ~10cm. This embodiment includes the following steps from the comprehensive utilization process of biomass raw materials:

[0063] (1) After the biomass raw material is crushed and pretreated, the treated biomass raw material is cooked with an organic acid solution of formic acid and acetic acid with a total acid concentration of 60%. The quality of acetic acid and formic acid in the organic acid solution of this example The ratio is 1:1, and 3% hydrogen peroxide (H 2 O 2 ) As a catalyst, the reaction temperature is controlled at 125°C, the reaction is 40min, the solid-liquid mass ratio is 1:10, and the obtained reaction liquid is subje...

Example Embodiment

[0077] Example 2

[0078] In this embodiment, the straw (mass component composition: cellulose 35.8%, hemicellulose 28.6%, and lignin 14.3%) is first crushed and crushed to a particle size of 2 cm-10 cm. In this embodiment, the comprehensive utilization process of straw includes the following steps:

[0079] (1) After the rice straw is crushed and pretreated, the treated rice straw is cooked with an organic acid solution of formic acid and acetic acid with a total acid concentration of 65%. The mass ratio of acetic acid to formic acid in the organic acid solution of this embodiment is 1: 6. And add hydrogen peroxide (H 2 O 2 ) As a catalyst, control the reaction temperature to 130°C, react for 10 minutes, with a solid-liquid mass ratio of 1:30, and perform the first solid-liquid separation of the obtained reaction liquid;

[0080] (2) The solid obtained from the first solid-liquid separation is added to the organic acid solution of formic acid and acetic acid with a total acid conce...

Example Embodiment

[0093] Example 3

[0094] In this embodiment, the biomass raw material is bamboo chips (mass composition: cellulose 47.3%, hemicellulose 24.6%, lignin 25.8%), which is first crushed, washed with water to remove dust and crushed to a particle size of 2cm~10cm. The comprehensive utilization process of bamboo chips in this embodiment includes the following steps:

[0095] (1) After the bamboo chips are crushed and pretreated, the treated bamboo chips are cooked with an organic acid solution of formic acid and acetic acid with a total acid concentration of 70%. The mass ratio of acetic acid to formic acid in the organic acid solution in this example is 1:12, and add hydrogen peroxide (H 2 O 2 ) As a catalyst, the reaction temperature is controlled to 80°C, the reaction is conducted for 90 minutes, the solid-liquid mass ratio of the organic acid liquid and the bamboo chip raw material is 1:5, and the obtained reaction liquid is subjected to the first solid-liquid separation;

[0096] (2...

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Abstract

The invention relates to a comprehensive utilization method of a biomass raw material, and concretely relates to a method for comprehensively utilizing celluloses, hemicelluloses and lignin in the biomass raw material. The method is characterized in that the celluloses, lignin and the hemicelluloses can be respectively extracted by boiling the biomass raw material through a formic acid and acetic acid mixed organic acid under the catalysis action of hydrogen peroxide in order to obtain highly pure celluloses and lignin, the combined production of furfural and biochar is realized by utilizing a residual sugar solution, and the highly pure celluloses can be used in the textile industry.

Description

technical field [0001] The invention relates to a method for comprehensively utilizing biomass raw materials, in particular to a method for extracting cellulose and lignin from biomass raw materials and co-producing furfural and biochar. Background technique [0002] Biomass raw materials exist in the form of plants, and the main components are cellulose, hemicellulose and lignin, of which cellulose accounts for about 40%, hemicellulose accounts for about 25%, and lignin accounts for about 20%. The total amount of biomass raw materials generated by photosynthesis exceeds 200 billion tons, so biomass raw materials are the most abundant and cheapest renewable resources on the earth. [0003] Cellulose is the main component of plant cell walls. The cellulose used for textile and papermaking in the world reaches 8 million tons per year. In addition, using separated and purified cellulose as raw material, rayon, cellophane, nitrate, acetate and other ester derivatives and ether...

Claims

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Application Information

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IPC IPC(8): D21C3/20D21C9/16D21H11/12C08H7/00C08B37/14C01B31/02C01B32/05
Inventor 唐一林江成真高绍丰刘洁刘云鹏白福玉
Owner JINAN SHENGQUAN GROUP SHARE HLDG
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