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Method for preparing liquid fuel by using bio-oil

A technology for liquid fuel and bio-oil, which is used in the preparation of biological raw materials, liquid hydrocarbon mixtures, and the petroleum industry. high yield effect

Active Publication Date: 2019-07-05
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preparing liquid fuel by using bio-oil, which solves the problems of low catalytic modification efficiency of existing bio-oil and low yield of liquid fuel

Method used

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  • Method for preparing liquid fuel by using bio-oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) take bio-oil as raw material, add n-hexane solvent, the volume ratio of solvent to raw material is 10:1, fully mix and sonicate for 5 minutes, then stand for stratification to separate out the solvent phase, and obtain the extract containing the first product. n-hexane solution;

[0034] (2) get the normal hexane solution containing the first product that 20mL step (1) obtains and put into the high temperature and high pressure reactor of 50mL 316L, add the Ru / TiO of high dispersion 2 The catalyst is subjected to hydrodeoxygenation reaction, the catalyst metal loading is 2wt%, the catalyst dosage is 0.1g, the reaction temperature is 240°C, the reaction time is 4 hours, and the hydrogen pressure is 1MPa to obtain a liquid fuel.

Embodiment 2

[0036] (1) take bio-oil as raw material, add n-octane solvent, the volume ratio of solvent to raw material is 9:1, fully mix and sonicate for 8 minutes, then stand for stratification to separate the solvent phase, and obtain the first product containing the first product. n-octane solution;

[0037] (2) get the n-octane solution containing the first product that 20mL step (1) obtains and put into the high temperature and autoclave of 50mL 316L, add the Ru / TiO of high dispersion 2 The catalyst is subjected to hydrodeoxygenation reaction, the catalyst metal loading is 2wt%, the catalyst dosage is 0.2g, the reaction temperature is 300°C, the reaction time is 4 hours, and the hydrogen pressure is 1MPa to obtain a liquid fuel.

Embodiment 3

[0039](1) Take bio-oil as raw material, add n-octane solvent, the volume ratio of solvent to raw material is 5:1, fully mix and sonicate for 10 minutes, then stand for stratification to separate the solvent phase, and obtain the first product containing the first product. n-octane solution;

[0040] (2) get the n-octane solution containing the first product that 20mL step (1) obtains and put into the high temperature and autoclave of 50mL 316L, add the Ru / TiO of high dispersion 2 The catalyst is subjected to hydrodeoxygenation reaction, the catalyst metal loading is 2wt%, the catalyst dosage is 0.4g, the reaction temperature is 280°C, the reaction time is 6 hours, and the hydrogen pressure is 1MPa to obtain a liquid fuel.

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Abstract

The invention relates to the technical field of biomass fuel, in particular to a method for preparing liquid fuel by using bio-oil. The invention discloses a method for preparing the liquid fuel by using the bio-oil. The method comprises the following steps that step 1, the bio-oil is mixed with a hydrocarbon solvent, and a hydrocarbon solution containing a first product is obtained through extraction after standing and delamination; step 2, the hydrocarbon solution containing the first product and a catalyst are subjected to a hydrodeoxygenation reaction to obtain the liquid fuel. The methodfor preparing the liquid fuel by using the bio-oil has the advantages that the first product extracted from the bio-oil is directly prepared into the liquid fuel, so that the inactivation of the catalyst caused by a polycondensation reaction of complicated components during hydrodeoxygenation of the whole components of the bio-oil is effectively prevented; in addition, the yield of light phenoliccompounds in the extracted hydrocarbon solution containing the first product is high, and only hydrocarbon compounds and alkylphenol compounds of which the carbon number is 6-10 are contained after hydrodeoxygenation to be directly used as the fuel, thereby improving the quality of the liquid fuel.

Description

technical field [0001] The invention relates to the technical field of biomass fuels, in particular to a method for preparing liquid fuels by utilizing biological oil. Background technique [0002] With the increasingly prominent energy and environmental issues, renewable energy has received more and more attention and research. Biomass energy has the advantages of rich carbon content, large reserves, wide distribution, low pollution, low cost and renewable energy. It is recognized as a potential fossil energy alternative. However, biomass has low energy density and occupies a large volume, which is not conducive to transportation and storage. Rapid pyrolysis converts solid biomass into liquid bio-oil, which greatly improves energy density. Bio-oil is mainly composed of carbon, hydrogen and oxygen elements, with hundreds of components, including phenols, furans, ketones, aldehydes, alcohols, ethers, acids and esters. These compounds are complex in structure, high in oxygen...

Claims

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Application Information

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IPC IPC(8): C10G3/00C10G67/04
CPCC10G3/00C10G3/47C10G3/48C10G67/04Y02P30/20
Inventor 舒日洋李荣萱林壁钦王超陈颖
Owner GUANGDONG UNIV OF TECH
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