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Method for preparing biological oil and biological char by thermal cracking and liquefying bamboo wood

A technology of biochar and pyrolysis, which is applied in the preparation of liquid hydrocarbon mixture, biofuel, petroleum industry, etc., can solve the problems that have not been reported, and achieve the effects of low operating cost, improved utilization of bamboo resources, and easy industrialization

Inactive Publication Date: 2014-07-02
承德绿世界活性炭有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research on biomass pyrolysis liquefaction mainly focuses on agricultural and forestry biomass resources such as wood, rice husk, straw, etc., while the patented technology of bamboo pyrolysis using pyrolysis liquefaction technology has not been reported.

Method used

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  • Method for preparing biological oil and biological char by thermal cracking and liquefying bamboo wood

Examples

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Effect test

Embodiment 1

[0053] A method for preparing bio-oil and bio-char by pyrolysis and liquefaction of bamboo, the steps of the method are as follows:

[0054] Step 1. Raw material pretreatment

[0055] The moso bamboo processing residues are crushed to obtain bamboo particles with a particle size of less than 2 mm, and then undergo deashing treatment. The deashing treatment process steps are: deionized water washing ①-acid washing-deionized water washing ②; among them, deionized water washing ① The process is to immerse the bamboo granules in deionized water, the weight ratio of bamboo granules to deionized water is 1:20, the treatment temperature is 50°C, and the treatment time is 15 minutes; during the pickling process, the bamboo granules washed with deionized water are immersed in hydrochloric acid solution In the process, the concentration of hydrochloric acid solution is 3.5mol / L, the treatment temperature is 50°C, the treatment time is 20min, and the weight ratio of bamboo particles to h...

Embodiment 2

[0077] A method for preparing bio-oil and bio-char by pyrolysis and liquefaction of bamboo, the steps of the method are as follows:

[0078] Step 1. Raw material pretreatment

[0079] The moso bamboo processing residues are crushed to obtain bamboo particles with a particle size of less than 2 mm, and then undergo deashing treatment. The deashing treatment process steps are: deionized water washing ①-acid washing-deionized water washing ②; among them, deionized water washing ① The process is to immerse the bamboo granules in deionized water, the weight ratio of bamboo granules to deionized water is 1:20, the treatment temperature is 50°C, and the treatment time is 15 minutes; during the pickling process, the bamboo granules washed with deionized water are immersed in hydrochloric acid solution In the process, the concentration of hydrochloric acid solution is 3.5mol / L, the treatment temperature is 60°C, the treatment time is 20min, and the weight ratio of bamboo particles to h...

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Abstract

The invention discloses a method for preparing biological oil and biological char by thermal cracking and liquefying bamboo wood and belongs to the field of bamboo wood resource processing and using. The method comprises the following steps of: pre-treating raw materials; transporting and feeding by pneumatic power; thermal cracking and liquefying by a fluidized bed; separating out char by cyclone; filtering and removing char; condensing thermal-cracking gas; and recycling thermal-cracking tail gas. The invention further provides a device used for the method, which comprises a pneumatic transporting feeder, a fluidized bed reactor, a cyclone separator, a filter, a condenser, an oil storage tank, a gas storage tank and a char collection box. The method disclosed by the invention is low in energy consumption in the technique system, simple in operation process and high in technique maneuverability, is clean and pollution-free, and is capable of realizing the whole-bamboo use of the bamboo resource, therefore, the bamboo resource using rate can be greatly improved. The method is beneficial to the industrialization, thereby having a very wide application prospect.

Description

technical field [0001] The invention relates to a method for preparing bio-oil and bio-char by pyrolysis and liquefaction of bamboo, belonging to the field of processing and utilization of bamboo resources. Background technique [0002] With the shortage of petrochemical resources and the increasingly prominent environmental problems in recent years, the use of biomass resources to produce high value-added energy products and chemical materials has become an important development field and a hot spot of scientific research. As a green, renewable and degradable biomass resource, bamboo has broad prospects for development and utilization. my country is rich in bamboo resources, and the bamboo planting area ranks first in the world. Generally speaking, bamboo is a natural polymer compound, mainly composed of cellulose, hemicellulose, lignin, pectin and starch, of which the first three account for the vast majority. Bamboo has strong reproductive ability, short cycle time, hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10B53/02C10B49/10C10B57/00C10B57/10
CPCY02E50/14Y02E50/10
Inventor 常建民任学勇王文亮张忠涛司慧
Owner 承德绿世界活性炭有限公司
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