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A kind of method that biomass is rich in furan alcohol bio-oil

A biomass and furan alcohol technology, which is applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, and hydrocarbon oil treatment, can solve the problems of low yield of furan alcohol, low product yield, long reaction time, etc., and achieve high content, The effect of high yield and improved absorption rate at elevated temperature

Active Publication Date: 2016-02-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently reported methods for producing furanol from biomass are generally hydrolyzed or pyrolyzed by adding protonic acid, Lewis acid, organic acid, etc., but there are problems such as long reaction time, low product yield, and difficult separation.
[0005] CN101475544A discloses a method for preparing furan chemicals by microwave catalytic pyrolysis of biomass using metal halides, inorganic acids, and organic acids as catalysts. The method adds catalysts, inert gas purging pyrolysis and The product is cooled by two stages of water to obtain a pyrolysis liquid with a yield of 50%, but the liquid product is mainly furfural, and the yield of furan alcohol is low

Method used

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  • A kind of method that biomass is rich in furan alcohol bio-oil
  • A kind of method that biomass is rich in furan alcohol bio-oil

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Experimental program
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Effect test

Embodiment 1

[0036] First weigh a certain amount of silica sol and add water to dilute to 5% aqueous sol solution, then add а-Al to the silica sol solution 2 O 3Powder (less than 1μm in diameter), ZrO 2 Powder (diameter less than 0.5μm), add an appropriate amount of ethanol, and put it into a ball mill for wet grinding. After wet grinding for 24 hours, the powder was dried, and the powder passed through a 60-mesh sieve was calcined at 600° C. for 2 hours, and then shaped as required. The formed body was sintered at 1200°C for 2 hours in the atmospheric environment and then slowly cooled to room temperature with the furnace temperature. Two microwave additives TC-1 and TC-2 were prepared according to the different proportions of raw materials, in which the composition of TC-1 was 65% Al 2 O 3 , 35%SiO 2 , 5%ZrO 2 , the composition of TC-2 is 85% Al 2 O 3 , 10%SiO 2 , 5%ZrO 2 .

Embodiment 2

[0038] Mix 100g corn stalks (0.5mm) with 0.1% sulfuric acid at a mass ratio of 1:1 and stir evenly, then steam explode at 1.2MPa and 220°C for 5 minutes, separate the solid and liquid after the reaction, recover the liquid, and extract xylose Product 8.7g. The solid residue obtained above is mixed with TC-1 according to the mass ratio of 1:0.1, and then directly enters the microwave cracking reactor for drying and pyrolysis. First, dehydrate the solid residue at 160°C for 15 minutes, with a power density of 1×10 5 W / m 3 , then heat up to 450°C for 6 minutes, and then heat up to 600°C until no gas is generated. The power density of the whole pyrolysis process is 4×10 5 W / m 3 . The gasification products formed by pyrolysis were collected by multi-stage condensation to obtain 36.6 g of bio-oil liquid, of which the content of furanol [2-hydroxy-1-methoxy)ethylfuran] was 32.4%, and the yield of furanol was 11.9%.

Embodiment 3

[0040] Mix 100g of corn stalks (0.5mm) and 0.5% sulfuric acid at a mass ratio of 1:1 and stir evenly, then steam explode at 0.8MPa and 200°C for 2 minutes, separate the solid and liquid after the reaction, recover the liquid, and extract xylose Product 12.5g. The solid residue obtained above is mixed with TC-2 according to the mass ratio of 1:0.5, and then directly enters the microwave cracking reactor for drying and pyrolysis. First, dehydrate the solid slag at 160°C for 15 minutes, with a power density of 2×10 5 W / m 3 , then heat up to 450°C for 10 minutes, and then heat up to 600°C for pyrolysis until no gas is produced. The power density of the entire pyrolysis process is 4×10 5 W / m 3 . The gasification products formed by pyrolysis were collected by multi-stage condensation to obtain 34.8 g of bio-oil liquid, of which the content of furanol [2-hydroxy-1-methoxy)ethylfuran] was 38.9%, and the yield of furanol was 13.5%.

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Abstract

The invention discloses a method for preparing furanol-rich biological oil from biomass. The method comprises the following steps: uniformly mixing a biomass raw material with an acidic solution; performing steam explosion; performing solid-liquid separation to obtain liquid and solid residues; recycling the liquid; mixing the solid residues with a microwave additive according to a certain ratio; dewatering, drying and pyrolyzing a mixture in a microwave pyrolysis reactor; collecting gasified products obtained by pyrolysis through multistage condensation to obtain the furanol-rich biological oil. The biological oil obtained by the method is high in yield, high in component content, low in moisture content and easy to separate; moreover, the process is simple and the industrialized application is facilitated.

Description

technical field [0001] The invention relates to a method for preparing furanol-rich bio-oil from biomass. Background technique [0002] With the increasing shortage of petrochemical resources and the need to reduce greenhouse gas emissions and protect the environment and achieve the goal of sustainable human development, biofuels and their chemicals have the characteristics of renewable raw materials, product variety and environmental friendliness. Become the best alternative to fossil-based products. In the long run, the use of biomass such as lignocellulose to produce biofuels and chemicals has good development prospects. [0003] Biomass pyrolysis can convert cheap, low-density raw materials into liquid fuels with high calorific value, and does not use solvents in the process. It is becoming one of the effective ways for the development of biomass liquid fuels. At present, the composition of bio-oil obtained by pyrolysis method is still complex, which is not conducive t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00
CPCC10G1/002C10G2300/1011
Inventor 王鑫乔凯王领民张全李政关浩
Owner CHINA PETROLEUM & CHEM CORP
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