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Method of using plant fibrous materials to produce xylose, high boiling solvent lignin and fiber

A technology of high-boiling alcohol lignin and plant fiber, which is applied in the field of producing xylose, high-boiling alcohol lignin and fiber, can solve the problems of waste of other components, pollute the environment, etc. Effect

Inactive Publication Date: 2018-06-19
SICHUAN GOLDEN ELEPHANT SINCERITY CHEM CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problem solved by the present invention is: to provide a method for producing xylose, high boiling alcohol lignin and fiber with plant fiber raw materials, and to solve the problem in the prior art that only cellulose is used in the traditional papermaking industry, and other components are wasted and pollute the environment

Method used

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  • Method of using plant fibrous materials to produce xylose, high boiling solvent lignin and fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0047] as attached figure 1 As shown, the present embodiment provides the method that adopts bamboo production xylose, high boiling alcohol lignin and fiber, specifically comprises the following steps:

[0048] After the original bamboo is dust-removed and washed, it enters the wire separator and becomes 1-2mm filaments, and then cuts into 2-4cm long. The separated material enters the hot water washer and is continuously washed in countercurrent with 4 times the amount of 80°C hot water. After the washed bamboo shreds are drained, they enter the steam explosion machine. The leached water is used for washing the separated materials after precipitation treatment. Close the steam exploder and evacuate it to 80KPa, then pass in steam to heat it to a temperature of 145°C, then use 145°C hot compressed air to pressurize it to 2.2MPa, and the treatment time is 3min to make lignin, cellulose, and hemicellulose Segmentation of other tissues and sugar chains and degrade most of the h...

Embodiment 2

[0054] as attached figure 1 As shown, the present embodiment provides a method for producing xylose, high boiling alcohol lignin and fiber using wheat straw, which specifically includes the following steps:

[0055] After the wheat straw is dedusted and washed, it enters the wire separator and becomes a 2-4mm filament. The separated material enters the hot water washer and is continuously washed in countercurrent with 6 times the amount of 80°C hot water. After the washed material is drained, it enters the continuous steam explosion machine. The leached water is used for washing the separated materials after precipitation treatment. Close the steam exploder and evacuate it to 90KPa, then pass in steam to heat it to a temperature of 160°C, then use 160°C hot compressed air to pressurize it to 3MPa, and the treatment time is 5min to make lignin, cellulose, hemicellulose, etc. Fragmentation of tissue and sugar chains and degradation of most hemicelluloses to xylose. Then it e...

Embodiment 3

[0061] This embodiment is a comparative example.

[0062] In this example, xylose is extracted by using the method in Example 1 in the patent application document with application number 201710117536.5.

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Abstract

The invention discloses a method of using plant fibrous materials to produce xylose, high boiling solvent lignin and fiber. The problem in the prior art that a traditional paper industry only uses thefiber, causes the waste of other elements and environmental pollutionis solved. By adopting a gas explosion method, the xylose is extracted from the plant fibrous materials, after that, the high boiling solvent lignin is extracted from the rest of materials, and the materials which the xylose and high boiling solvent lignin are previously extracted from are used for papermaking and dissolving thefiber. The method of using plant fibrous materials to produce the xylose, the high boiling solvent lignin and the fiber has a simple process and convenient operation, can fully and respectively extract the fiber, the xylose, and hemicellulose so that the elements are effectively utilized, completely utilizes the materials, and reduces the environmental pollution.

Description

technical field [0001] The invention belongs to the fields of chemical industry and papermaking, and in particular relates to a method for producing xylose, high boiling alcohol lignin and fibers by using plant fiber raw materials. Background technique [0002] The main components of bamboo and straw are cellulose, lignin, and hemicellulose (polypentose), which are traditionally used to make paper. However, the traditional pulping process has caused extremely serious environmental pollution, mainly due to the unreasonable utilization of papermaking raw materials. In particular, bamboo and straw are used as raw materials for pulping in my country, and half of the non-cellulose raw materials and all chemical raw materials are discharged as waste. The non-cellulose part in the raw material is not fully utilized, wasted in vain, and also causes certain environmental pollution. [0003] ⑴The application of cellulose [0004] Plant fiber raw materials are widely used in various...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/36D21C1/00D21C9/10D21C11/00
CPCD21B1/36D21C1/00D21C9/10D21C11/00
Inventor 武长安雷林唐印刘朝慧李旭初郭志刚王明权李刚张帮成
Owner SICHUAN GOLDEN ELEPHANT SINCERITY CHEM CO LTD
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