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Straw bio-enzyme degradation aid and degradation pulping process

A straw biological and enzymatic degradation technology, which is applied in the fields of pulp bleaching, textile and papermaking, fiber raw material treatment, etc., can solve environmental problems such as pollution and black water discharge, and achieve the goals of reducing production costs, saving energy, reducing energy consumption and pollution Effect

Inactive Publication Date: 2011-11-02
TAIAN QINENG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of environmental pollution caused by black water discharge in the straw pulping process, the present invention provides a straw bio-enzyme degradation aid that uses bio-enzymes to degrade non-fibrous substances in plant straws in the pulping process

Method used

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  • Straw bio-enzyme degradation aid and degradation pulping process
  • Straw bio-enzyme degradation aid and degradation pulping process
  • Straw bio-enzyme degradation aid and degradation pulping process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A straw biological enzyme degradation aid, comprising the following components by weight:

[0032] Cellulase 8%, lipase 11%, α-1,4-glucose hydrolase 6%, catalase 10%, urea 20%, magnesium sulfate 16%, fatty alcohol polyoxyethylene ether 8%, alkyl Phenol polyoxyethylene ether OP-10 11%, the balance is calcium powder excipient;

[0033] The cellulase activity unit is 25000u / g, the lipase activity unit is 22000u / g, the α-1,4-glucohydrolase activity unit is 15000u / g, and the catalase activity unit is 20000u / g.

[0034] Wash and cut wheat straw straw with a water content of 7%, put it into a rapid pulper, add water and straw bio-enzyme degradation aid, the weight ratio of wheat straw: straw bio-enzyme degradation aid: water is 1:0.15: 5. Mix evenly, heat to 50°C in a fast pulping machine, rub and grind for 1.5 hours; add hydrogen peroxide accounting for 30% of the weight of wheat straw in four times for bleaching for 2 hours, hydrogen peroxide 2 o 2 The content is 27.5wt%,...

Embodiment 2

[0048] A straw bio-enzyme degradation aid is characterized in that it comprises the following components by weight:

[0049] Cellulase 8%, lipase 6%, α-1,4-glucose hydrolase 7%, catalase 4%, urea 10%, magnesium sulfate 12%, fatty alcohol polyoxyethylene ether 15%, alkyl Phenol polyoxyethylene ether OP-10 14%, the balance is an excipient mixed with calcium powder and sodium bicarbonate powder at a weight ratio of 1:1.

[0050] The cellulase activity unit is 25000u / g, the lipase activity unit is 22000u / g, the α-1,4-glucohydrolase activity unit is 15000u / g, and the catalase activity unit is 20000u / g.

[0051] A straw bio-enzyme degradation pulping process, the reed straw with a water content of 8% is washed and cut into sections, put into a rapid pulping machine, and water and straw bio-enzyme degradation aids are added, reed straw: straw bio-enzyme degradation aids : The weight ratio of water is 1:0.06:5, mixed evenly, heated to 60°C in a fast pulper, rubbed, and reacted for 1 ...

Embodiment 3

[0054] A straw biological enzyme degradation aid, comprising the following components by weight:

[0055] Cellulase 10%, lipase 11%, α-1,4-glucose hydrolase 10%, catalase 10%, urea 6%, magnesium sulfate 6%, fatty alcohol polyoxyethylene ether 11%, alkyl Phenol polyoxyethylene ether OP-10 15%, the balance is an excipient mixed with talc powder and sodium bicarbonate powder at a weight ratio of 1:1.

[0056] The cellulase activity unit is 25000u / g, the lipase activity unit is 22000u / g, the α-1,4-glucohydrolase activity unit is 15000u / g, and the catalase activity unit is 20000u / g.

[0057] A straw bio-enzymatic degradation pulping process. The bamboo fiber straw with a water content of 8% is washed and cut into sections, put into a rapid pulping machine, and water and straw bio-enzyme degradation additives are added. Reed straw: Straw bio-enzyme degradation Auxiliary: The weight ratio of water is 1:0.08:6, mix evenly, heat to 60°C in a fast pulper, rub and grind for 1.5 hours; a...

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Abstract

The invention relates to a straw bio-enzyme degradation aid in the technical field of straw degradation, which comprises the following components in percentage by weight: 8 to 10 percent of cellulase, 6 to 11 percent of lipase, 6 to 10 percent of alpha-1,4-glucose hydrolase, 4 to 10 percent of catalase, 6 to 20 percent of urea, 6 to 16 percent of magnesium sulfate, 8 to 15 percent of fatty alcohol-polyoxyethylene ether, 11 to 15 percent of alkylphenol polyoxyethylene ether OP and the balance of excipient. A degradation pulping process for the straw bio-enzyme degradation aid comprises the following steps of: cleaning straw, cutting into segments, putting the segments into a quick pulping machine, adding water and the straw bio-enzyme degradation aid, mixing uniformly, and heating to the temperature of between 50 and 60 DEG C in the quick pulping machine for rubbing to perform reaction for 1 to 1.5 hours; and adding hydrogen peroxide for bleaching, and when the whiteness is more than 70 percent which is required by International standard organization (ISO), stopping the reaction to obtain paper pulp. The degradation pulping process is non-pollution, thermophilic digestion is avoided, strong base and strong acid are not used, the requirement of environment-friendly pulping is met, waste water is not discharged during pulping, a large amount of water for production and energy canbe saved, the production cost is reduced, and the pulping speed is accelerated.

Description

technical field [0001] The invention relates to the technical field of straw degradation, in particular to a straw bio-enzyme degradation aid, and also relates to a straw bio-enzyme degradation pulping process. Background technique [0002] The paper industry is an important industry in the national economy. Most of the domestic paper companies continue to use the traditional pulping process, which discharges a large amount of black water, which does not meet the discharge standards stipulated by the state, and brings great losses to the economy of our country. [0003] At present, Chinese scientific researchers have also carried out extensive technical development and application of biological pulping. Most of them use biological flora, such as white rot fungi and actinomycetes. long, the hardness of the pulp is high, and it cannot be mass-produced. my country's papermaking pulping technology mainly includes alkali method, sulfite method, neutral imine method, mechanica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/00D21C9/16
Inventor 李树泉
Owner TAIAN QINENG CHEM TECH
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