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Method for preprocessing plant cellulose raw material

A plant fiber and pretreatment technology, applied in the storage of ground cellulose materials, pretreatment with acidic compounds, separation of raw materials, etc., can solve the problems of increasing product costs, prevent mildew, solve mildew, and reduce equipment The effect of investment

Inactive Publication Date: 2012-12-26
陈培豪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These factors will increase the cost of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Collect the straw straws that have been dried in the field for one day. The straw is rolled by a roller to destroy its nodes and cores, and then spread on the grid frame with a leakage liquid to collect the seepage at a thickness of 1 cm. Spray 10 wt. % dilute sulfuric acid is evenly sprayed on the straw, packed into bundles, stacked in a solar greenhouse, air-dried naturally, and the degree of embrittlement is checked once a week; by the 8th week, it can be crushed and pulverized by hand. The machine crushes the straw to obtain crushed material. The obtained pulverized material is directly used as raw material for concentrated acid hydrolysis.

Embodiment 2

[0028] Cut down the harvested corn stalks and dry them in the sun for one day, crush them with rollers to destroy their nodes and cores, cut them into 50 cm long, put them in a pool after bundling them, soak them in 0.3wt% sulfuric acid solution for 20 minutes, and remove them. Take out and drain, then put it in the heating room, mix the boiler tail gas with air and cool it down to 120°C, then pass it into the heating room, raise the temperature to 90°C-100°C, and keep it for 1 hour; after heating, stack it in a rainproof yard Store in medium temperature, air-dry naturally, and check the degree of embrittlement once a week; at the third week, the corn stalks can be crushed and pulverized by hand, and the corn stalks are pulverized with a pulverizer to obtain pulverized materials. The obtained pulverized material is directly used as raw material for concentrated acid hydrolysis.

Embodiment 3

[0030] Collect the wheat straw that has been dried in the field for one day, crush it with a roller to destroy its nodes and core, and then spread it on a grid with a thickness of 1 cm to collect the seepage, and use a sprayer to spray 0.1wt from the upper and lower sides. % diluted hydrochloric acid evenly sprayed on the wheat straw, packed into bundles, stacked in the solar greenhouse, air-dried naturally, and the degree of embrittlement was checked once a week; at the 10th week, it reached the degree of crushing and pulverization by hand. The pulverizer pulverizes the wheat straw to obtain pulverized materials. The obtained pulverized material is directly used as raw material for concentrated acid hydrolysis.

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Abstract

The invention relates to the field of biochemical industry and particularly relates to a method for preprocessing a plant fiber raw material. The method for preprocessing the plant fiber raw material comprises the following steps: processing the plant fiber raw material by use of a dilute inorganic acid solution, namely contacting the dilute inorganic acid inorganic acid solution with the plant fiber raw material so as to enable the plant fiber raw material to carry the inorganic acid; then carrying out waterproof storage on the plant fiber raw material with the acid and naturally air-drying the plant fiber raw material with the acid; and after detecting that the stored plant fiber raw material is embrittled, smashing the stored plant fiber raw material, wherein the smashed material is the well preprocessed plant fiber raw material. By utilizing the method, the preprocessed plant fiber raw material cannot go mouldy during the storage process and can be easily smashed into a fine concentrated acid hydrolysis material with a loose structure after being stored.

Description

technical field [0001] The invention relates to the field of biochemical industry, in particular to a method for pretreatment of plant fiber raw materials. Background technique [0002] Plant fiber raw materials are extremely abundant renewable resources in nature. With the gradual depletion of petroleum resources, plant fiber raw materials will be used to produce bioenergy and biochemical products. [0003] The most abundant plant fiber raw material is crop straw. Straw is harvested seasonally, and the harvested straw needs to be stacked for storage. Due to the uneven water content of the straw during harvest, mildew will occur during storage, resulting in the loss of hydrolyzable polysaccharides and increasing the cost of the product. If it is strictly dried to a moisture content where microorganisms cannot grow before storage, it will also increase costs. At present, in the process of straw storage, in order to prevent mildew, fungicides such as bleaching powder are ge...

Claims

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Application Information

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IPC IPC(8): D21B1/36D21B1/38
CPCD21C1/04C08H8/00
Inventor 陈培豪
Owner 陈培豪
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