Production method of bamboo phenolic alcohol liquefied products

A technology of liquefied products and production methods, which is applied in the field of producing liquefied products, can solve problems such as unsafety, severe degradation of wood components, unfavorable polymer raw materials, etc., and achieve the effect of safe working environment and mild reaction conditions

Inactive Publication Date: 2012-06-20
ZHEJIANG FORESTRY ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Initial wood liquefaction usually refers to directly liquefying wood powder under high temperature (300-400°C) and high-pressure (10-30Mpa) conditions to prepare liquid fuel; however, the process of directly liquefying wood under high-temperature and high-pressure con

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] The small-diameter bamboo is crushed to 20-80 mesh bamboo powder and dried to a moisture content of less than 10% for use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the hydrochloric acid of 15 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensation reflux device, after stirring, add the bamboo powder of 100 mass parts, 110 ℃ The reaction was continued for 50 min, lowered to room temperature, and 15 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; after testing, the liquefaction rate was 73.28%.

Example Embodiment

[0029] Example 2

[0030] Pulverize small-diameter bamboo or bamboo wood processing residues to 20-80 mesh bamboo powder and dry to a moisture content of less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the phosphoric acid of 20 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensation reflux device, after stirring, add the bamboo powder of 100 mass parts, 130 ℃ The reaction was continued for 50 min, cooled, and 20 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; after testing, the liquefaction rate was 79.17%.

Example Embodiment

[0031] Example 3

[0032] The bamboo processing residue is pulverized to 20-80 mesh bamboo powder and dried to a moisture content of less than 10% for use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the hydrochloric acid of 25 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensation reflux device, after stirring, add the bamboo powder of 100 mass parts, 150 ℃ The reaction was continued for 50 min, lowered to room temperature, and 25 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; after testing, the liquefaction rate was 87.25%.

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PUM

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Abstract

The invention relates to a method for producing liquefied products by crushed small-diameter bamboo materials and bamboo material processing residues under the simultaneous effect of phenolic alcohol compounds. The invention has a purpose that a better liquefying effect can be obtained by various chemical ingredients in the bamboo materials by the provided method, in addition, the reaction temperature is lower, the reaction pressure is lower, and the safety is higher. The method has the technical scheme that a production method of bamboo phenolic alcohol liquefied products comprises the following steps that: 1) firstly, small-diameter bamboo or/and bamboo material processing residues are crushed to 20 to 80 meshes and are baked until the moisture content is lower than 10 percent for standby; 2) 100 mass parts of bamboo powder, 50 to 75 mass parts of phenol, 50 to 75 mass parts of polyethylene glycol and 15 to 30 mass parts of acid catalysts are added into a reaction container, the normal-pressure reaction lasts 30 to 90 minutes, the reaction temperature is 110 DEG C to 170 DEG C, the temperature is reduced to the room temperature after the reaction completion, and 15 to 30 mass parts of caustic soda solution is added for neutralization to obtain the bamboo material liquefied products.

Description

technical field [0001] The invention relates to a method for producing liquefied products under the combined action of phenolic alcohol compounds after small-diameter bamboo and bamboo processing residues thereof are pulverized. Background technique [0002] Bamboo is an important part of forest biomass resources, known as the "second forest". my country is located in the center of bamboo distribution in the world, and its bamboo forest area ranks first in the world, mainly distributed in 17 southern provinces. In the past 20 years, the industrial utilization of bamboo has played a huge role in alleviating the tense supply of timber in my country and promoting the development of the national economy. However, there are still many problems to be solved urgently in the industrialized utilization of bamboo at present. The outstanding performance is: the utilization rate of bamboo is low, such as the utilization rate of bamboo in bamboo plywood is about 40%, the utilization rat...

Claims

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Application Information

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IPC IPC(8): C08H8/00
Inventor 刘乐群刘杨孙丰文
Owner ZHEJIANG FORESTRY ACAD
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