Method for preparing paper pulp by fiber residue generated during microorganism product fermentation

A technology of fiber residue and fermentation process, which is applied in pulp beating/refining method, pulp dewatering, textile and papermaking, etc., and can solve problems such as increased processing cost and high COD.

Inactive Publication Date: 2007-10-17
徐佳珊
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Regarding the technical innovation of papermaking industry at home and abroad, a biotechnology papermaking technology has been developed. For example, the application number is 01107892.8, the publication number is CN1310258A, and the invention name is "Technology for preparing chemical mechanical straw pulp by biological pretreatment"; application number 021125521.7, Publication number CN1267605C, the title of the invention is "Biological Fermentation Pulp Process", which is characterized by the fact that microorganisms are only used as a biological fermentation pretreatment method similar to chemical treatment, not only does not produce fermented products, but also increases processing costs and produces a large amount of high COD, BOD organic wastewater

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The raw material of the invention is the fiber residue after ethanol is produced by fermenting agricultural waste. In the early production process, the crop waste pretreatment technology and microbial fermentation technology in the ethanol fermentation process of various fibers were applied, that is, the raw materials were easily hydrolyzed after crushing, steam explosion or acid (alkali) hydrolysis, oxidation and other pretreatment processes. The hemicellulose mainly becomes pentose sugars such as wood ponds, and the easily hydrolyzed amorphous cellulose is enzymatically hydrolyzed into glucose by cellulase, and these five-carbon and six-carbon sugars such as xylose and glucose are produced Monascus and Clostridium thermophiles are fermented into ethanol through solid-state or liquid-state fermentation, and then fibrous residue is obtained through distillation, solid-liquid separation and other processes. After the above fermentation production process, the fiber bundl...

Embodiment 2

[0020] The raw material of the invention is the fiber residue after the lactic acid is produced by fermenting agricultural wastes. In the previous production process, pretreatment similar to the ethanol fermentation production process was applied, but lactic acid fermentation strains were used to ferment lactic acid. The post-processing process is similar to the above.

Embodiment 3

[0022] The raw material of the invention is the fiber residue after the acetone butanol is produced by fermenting agricultural wastes. In the previous production process, pretreatment similar to the ethanol fermentation production process was applied, but the acetone-butanol fermentation strain was used to ferment acetone-butanol. The post-processing process is similar to the above.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a technique method for preparing paper pulp from fiber residua of fermentation products preparation from crop castoff by microorganism fermenting, which makes production of the paper pulp more economic than production direct from crop castoff by comprehensively utilizing microorganism fermentation and mechanical working. The method includes steps: crushing, acid (including organic acid and inorganic acid) or basic hydrolyzing, and enzymatic hydrolyzing crop castoff to obtain fiber residua, microorganism fermenting, distilling, solid-liquid separating, pulp grinding, pulp screening, and pulp extruding. The crop castoff includes processed castoff of corn straw, wheat straw hood, haulm, reed, medulla junci, bagasse, bamboo and forest. Advantages of the invention are: producing process has no pollution, less water is used, cost of the method is 35% of cost of chemical pulp preparation, and the method can be used to prepare food packaging paper and medicine packaging paper.

Description

technical field [0001] The invention belongs to the field of biomanufacturing, and relates to a pulp manufacturing process, in particular to a production technology combining microbial fermentation products and pulp processes, and more specifically, to fibers produced from agricultural fiber wastes through microbial fermentation to produce various fermented products The method by which the residue is used to produce pulp. Background technique [0002] Crop fiber waste is an extremely rich renewable resource, generally containing 40% to 50% of cellulose, 25% to 35% of hemicellulose, 15% to 20% of lignin, and a small amount of soluble sugar, Proteins, fats, and other inorganic mineral components have been attracting attention for utilizing such resources as industrial raw materials. [0003] With the gradual depletion of the earth's oil resources and the increase of the greenhouse effect of the atmosphere, the use of ethanol to replace part of oil for transportation fuel has ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/00D21D1/20D21D5/00D21C9/18
Inventor 徐佳珊
Owner 徐佳珊
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap