Method for resourceful full-mass utilization of rape stalks

A rapeseed stalk and recycling technology, applied in the direction of chemical instruments and methods, biochemical equipment and methods, methods based on microorganisms, etc., can solve the problem that the cellulosic ethanol industry is difficult to break through the technical and economic barriers, cannot realize industrialized production, and the production cost Increase and other issues, to achieve the effect of reducing equipment investment, eliminating the effect of feedback inhibition, and improving alcohol yield

Active Publication Date: 2019-01-04
SICHUAN GOLDEN ELEPHANT SINCERITY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the single target product, it is difficult for the cellulosic ethanol industry to break through the technical and economic barriers and cannot achieve large-scale industrial production
In addition, due to the underutilization of other components in the raw materials, it not only causes serious waste of resources, but also causes environmental pollution and increases production costs. As a result, the cost of ethanol production from straw fermentation is too high, and large-scale industrial production cannot be realized.

Method used

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  • Method for resourceful full-mass utilization of rape stalks
  • Method for resourceful full-mass utilization of rape stalks
  • Method for resourceful full-mass utilization of rape stalks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Rapeseed straw is crushed with a hammer mill. Its core working components are hammers and sieve plates. When working, the hammers begin to rotate at a high speed, continuously hitting the straws to destroy the structure, which conforms to 1-3cm The required rape stalks are discharged through the sieve plate holes, and the hammers continue to hit the unqualified straws. When the straws are crushed to meet the requirements, they are then discharged from the sieve holes for dust removal to remove impurities and dust; rape stalks after dust removal , There are still some soil and other impurities. In order to remove these impurities and soften the rape stalks, in order to facilitate the blasting, use 85 ℃ hot water to wash in the spiral grass washer. The grass washer is an oblique spiral. The lower part enters, the rape straw enters from the upper part, and the temperature is maintained by steaming into the outer jacket of the lawn washer. The rape straw washed with hot ...

Embodiment 2

[0052] Rapeseed straws are crushed with a hammer mill. The core working components are hammers and sieve plates. When working, the hammers begin to rotate at a high speed, continuously hitting the straws and destroying the structure. Rapeseed that meets the requirements of 1-3cm The rods are discharged through the sieve plate holes, and the hammers continue to hit the unqualified straws. When the straws are crushed to meet the requirements, they are then discharged from the sieve holes for dust removal to remove impurities and dust; the rape straw after dust removal is still entrained There are some soil and other impurities. In order to remove these impurities and soften the rape stalks, in order to facilitate the blasting, use 85℃ hot water to carry out countercurrent washing in a spiral grass washer. The grass washer is an inclined spiral and the water enters from the bottom. The rape stalks enter from above, and the temperature is maintained by steaming through the outer jac...

Embodiment 3

[0056] Rapeseed straws are crushed with a hammer mill. The core working components are hammers and sieve plates. When working, the hammers begin to rotate at a high speed, continuously hitting the straws and destroying the structure. Rapeseed that meets the requirements of 1-3cm The rods are discharged through the sieve plate holes, and the hammers continue to hit the unqualified straws. When the straws are crushed to meet the requirements, they are then discharged from the sieve holes for dust removal to remove impurities and dust; the rape straw after dust removal is still entrained There are some soil and other impurities. In order to remove these impurities and soften the rape stalks, in order to facilitate the blasting, use 85℃ hot water to carry out countercurrent washing in a spiral grass washer. The grass washer is an inclined spiral and the water enters from the bottom. The rape stalks enter from above, and the temperature is maintained by steaming through the outer jac...

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Abstract

The invention belongs to the field of xylose extracted by explosion and ethanol prepared by fermentation, and particularly relates to a method for resourceful full-mass utilization of rape stalks. Themethod comprises the following steps: pretreating raw materials at first; then preparing a compound fertilizer by screw extruded explosion, xylose extraction, impurity removal by hydrolysis, enzymolysis fermentation process and fermentation residues; and treating and reusing waste water. Resourceful full-mass utilization of the rape stalks is realized, the production cost for fermenting ethanol is reduced, and a production process is environmentally friendly.

Description

Technical field [0001] The invention belongs to the field of extracting xylose by blasting and preparing ethanol by fermentation, and is in particular a method for fully utilizing rape straw as a resource. Background technique [0002] With the development of biomass energy utilization technology, crop straw has become an important biomass energy resource. my country is the world's second largest rapeseed planting country, and the rapeseed planting area and rapeseed production account for about 20% of the world's total. In 2013, the rapeseed planting area in my country was about 7.5 million hectares, and the rapeseed output reached more than 14 million tons. Rape planting can produce a large amount of rape stalks while obtaining rapeseed. Therefore, the resources of rape stalks in my country are very rich. The cellulose content in rape straw is higher than that in rice and wheat straw. [0003] The composition of rape straw, rice straw and wheat straw is shown in the table below...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/10C12P19/14C12P19/02C13K13/00C07H3/02C07H1/06C07H1/00C12R1/84
CPCC12P7/10C12P19/02C12P19/14C13K13/002C07H1/00C07H1/06C07H3/02C12P2201/00Y02E50/10
Inventor 郭志刚雷林唐印刘朝慧李旭初武长安王明权李刚
Owner SICHUAN GOLDEN ELEPHANT SINCERITY CHEM CO LTD
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