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Ethanol-guiding straw bio-refining full-sealing integration system

A technology of straw biology and integrated system, which is applied in the direction of fertilizers, microorganisms, microorganisms, etc. made from biological waste, and can solve environmental pollution and other problems

Inactive Publication Date: 2009-10-14
徐守才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because it only utilizes the cellulose and part of the hemicellulose in the plant fiber, the sugars (oligosaccharides and monosaccharides) and Volatile organic acids are all treated as waste, which has caused serious pollution to the environment

Method used

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  • Ethanol-guiding straw bio-refining full-sealing integration system

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Embodiment Construction

[0093] Figure 1 The process flow of the fully closed integrated system of ethanol-oriented straw biorefining is shown. In the clean pulping operation unit consisting of material preparation, cooking pulping and comprehensive utilization of cooking waste liquid, the purified straw raw material is first separated into cellulose (containing hemicellulose) pulp, oligosaccharides, volatile organic acids ( salt) and lignin sulfonate and other components. The cellulose pulp enters the pulp hydrolysis unit after multi-stage countercurrent washing, and the volatile organic acid salt and lignosulfonate in the extracted black liquor are processed into formic acid, acetic acid, Lignosulfonate and other products. The remaining salt-sugar mixture is separated by electrodialysis, and the sodium-salt solution is causticized to prepare cooking liquid. The polysaccharide solution that meets the salt content control standard enters the slurry hydrolysis unit at the same time as the cellulose ...

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Abstract

The invention relates to a fiber biomass refining technology, in particular to an ethanol-guiding straw bio-refining full-sealing integration system. Based on the clean pulping of the straw, a chemical and biological combined method is used for totally hydrolyzing amylose separated from a cellulose and a hemicellulose separated into pulps and braised waste liquid to prepare a hexose and a pentose;and the hexose and the pentose are converted into series of chemical and biological products which taking ethanol as dominant product. As a firstly separated and subsequently disposed straw bio-refin ing integration system, the cellulose and the hemicellulose in the straw raw material are utilized effectively; furthermore, 20-25% of the lignin in the raw material and the material slag, slurry slag, trough slag and ashes (mineral matter) produced in the production process are totally converted into the product with high additional values, thus realizing the environment objects of full sealing and zero draining and controlling the production cost (apportionment cost after the straw biomass is totally utilized) of the fuel ethanol within 1800-2000RMB / t.

Description

1. Technical field [0001] The invention relates to fiber biomass refining technology, in particular to a fully enclosed integrated system for ethanol-guided straw bio-refining. 2. Background technology [0002] In recent years, with the depletion of fossil energy, in the pursuit of sustainable development, environmental protection and circular economy, the world's attention has once again focused on renewable plant fiber resources. A modern biorefinery industry that mainly uses agricultural and forestry waste (fibrous biomass) as raw material to produce biomass energy, chemical products and bio-based materials has surfaced. The emergence of an emerging industry full of vitality and broad development prospects has attracted great attention from the international community, and the development of biorefinery industry has become an important goal in the national development strategy. [0003] According to the report of China Chemical Network on August 1, 2007 (processing and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/10C12N1/00C05F11/08C05F5/00C12P19/12C12P7/52C12P7/36C12P7/16C12P19/00C12F3/02C12P7/04C12P7/64C12N1/16C12R1/865C12R1/79
CPCY02E50/16Y02A40/20Y02E50/10
Inventor 徐守才孙本琢徐国峰徐蕴丽黄惠敏王淑秋
Owner 徐守才
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