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Method for preparing bio-oil and synthesis gas from biomass

A technology of biomass oil and biomass, which is applied in the preparation of liquid hydrocarbon mixtures, the manufacture of combustible gases, and the petroleum industry, and can solve the problems of separately preparing biomass oil or syngas

Inactive Publication Date: 2014-09-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing biomass oil and synthesis gas from biomass in order to overcome the defect that the existing biomass utilization process can only prepare biomass oil or synthesis gas separately

Method used

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Examples

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Embodiment 1

[0033] This example is used to illustrate the method of the present invention for preparing biomass oil and synthesis gas from biomass.

[0034] Such as figure 1 As shown, sawdust (particle size 0.07-2 mm, composition shown in Table 1 below) as biomass is heated to 150°C, then added to the fluidized bed cracking reactor, and contacted with the high temperature gas from the burner, control The bed temperature of the reactor was 500°C, and the reaction was carried out at 0.2 MPa for 10 minutes. After being processed by a fluidized bed cracking reactor, oil and gas and coke are obtained, and the oil and gas are introduced into the subsequent oil and gas separation system to separate cracked gas and biomass oil. Coke is introduced into the gasification reactor, and a mixture of 50 parts by weight of steam and oxygen (600°C) based on 100 parts by weight of coke is introduced into the gasification reactor, where the moles of steam and oxygen are 6:1, the gasification reaction is carr...

Embodiment 2

[0038] This example is used to illustrate the method of the present invention for preparing biomass oil and synthesis gas from biomass.

[0039] Sawdust (particle size 0.07-2 mm, composition as shown in Table 1 above) as biomass is heated to 150 ℃, and then added to the fluidized bed cracking reactor, and contact with the high temperature gas from the burner to control the reactor bed The layer temperature was 400°C, and the reaction was carried out at 0.1 MPa for 5 minutes. After being processed by a fluidized bed cracking reactor, oil and gas and coke are obtained, and the oil and gas are introduced into the subsequent oil and gas separation system to separate cracked gas and biomass oil. Coke is introduced into the gasification reactor, and 50 parts by weight of steam and oxygen mixed gas (200°C) based on 100 parts by weight of coke is introduced into the gasification reactor, where the moles of steam and oxygen are 6:1, the gasification reaction is carried out at 800°C and 0...

Embodiment 3

[0041] This example is used to illustrate the method of the present invention for preparing biomass oil and synthesis gas from biomass.

[0042] Such as figure 1 As shown, sawdust (particle size of 0.07-2 mm, composition as shown in Table 1 above) as biomass is heated to 150°C, then added to a fluidized bed cracking reactor, and contacted with high-temperature gas from the burner to control The bed temperature of the reactor was 600°C, and the reaction was carried out at 0.2 MPa for 5 minutes. After being processed by a fluidized bed cracking reactor, oil and gas and coke are obtained, and the oil and gas are introduced into the subsequent oil and gas separation system to separate cracked gas and biomass oil. Coke is introduced into the gasification reactor, and a mixture of 50 parts by weight of steam and oxygen (500°C) based on 100 parts by weight of coke is introduced into the gasification reactor, where the moles of steam and oxygen are 6:1, the gasification reaction is car...

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Abstract

The invention relates to a method for preparing bio-oil and synthesis gas from biomass. The method comprises the following steps: (1) under thermal cracking condition of biomass, biomass is subjected to a cracking reaction so as to obtain oil gas and coke; (2) oil gas undergoes oil-gas separation so as to separate pyrolysis gas from bio-oil; and (3) under conditions of gasification, the coke and a gasifying medium undergo a gasification reaction so as to separate synthesis gas from gasification reaction products. According to the method provided by the invention, bio-oil and synthesis gas can be simultaneously prepared by the use of biomass, and the prepared synthesis gas basically contains no tar.

Description

Technical field [0001] The invention relates to a method for preparing biomass oil and synthesis gas from biomass. Background technique [0002] Biomass is a kind of renewable green energy, including crop straw, forestry waste, livestock and poultry manure, urban organic waste, aquatic plants, energy plants, etc. Currently, global biomass consumption is second only to coal, oil, and natural gas, ranking fourth. According to estimates by biologists, the total amount of biomass energy that grows on the earth each year is about 140-180 billion tons, which is equivalent to 10 times the current world energy consumption. my country is a large agricultural country, and there is a large amount of crop waste every year, including 600 million tons of straw (rice straw, wheat straw, corn stalk, etc.) and about 389 million tons of agricultural processing residues (rice husk, bagasse, etc.) each year. Biomass energy, as a low-carbon, low-sulfur, and low-nitrogen fuel, has the characteristic...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10J3/00
Inventor 朱丙田侯栓弟申海平
Owner CHINA PETROLEUM & CHEM CORP
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