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Method for preparing liquid fuel by using biomass

A liquid fuel and biomass raw material technology, applied in the field of solid waste recycling, can solve the problems of harsh reaction conditions, large hydrogen consumption, low efficiency, etc., achieve high octane number, reduce separation and purification process, reduce temperature and Effect of hydrogen consumption

Inactive Publication Date: 2019-07-23
NANKAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of harsh reaction conditions, large hydrogen consumption, high cost and low efficiency and difficult integration into the existing industrial system in the traditional technology of biomass conversion into liquid fuel, and to provide a green and efficient conversion of biomass A method for liquid fuel, characterized in comprising the steps of:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]Add 2.0 g of wood into a 100 mL reactor, add 10 mL of water and 30 mL of ethanol gasoline respectively, add 4.8 g of tin-doped silicotungstic acid, add 0.25 g of nitrogen-doped carbon-supported single-atom Ru catalyst, and flush with nitrogen After the reactor, feed 5 MPa of hydrogen into the reactor for pressurization. Keep the stirring speed at 700 rev / min, react at 160 °C for 8 hours, the yields of 2,5-dimethylfuran and 2-methylfuran are 81% and 85%, respectively.

Embodiment 2

[0032] Add 2.0 g of wood into a 100 mL reactor, add 10 mL of water and 30 mL of ethanol gasoline respectively, add 4.8 g of aluminum-doped silicotungstic acid, add 0.25 g of nitrogen-doped carbon-supported single-atom Ni catalyst, and flush with nitrogen After the reactor, feed 5 MPa of hydrogen into the reactor for pressurization. Keep the stirring speed at 700 rpm, and react at 160 °C for 8 hours, the yields of 2,5-dimethylfuran and 2-methylfuran are 67 and 73%, respectively.

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Abstract

The invention belongs to the field of recycling of solid waste, and provides a method for preparing liquid fuel by using biomass. The method is characterized by comprising the following steps that thereaction phase and the extract phase are mixed to form a two-phase system to serve as a reaction medium; an acid catalyst, a hydrodeoxygenation catalyst, a biomass raw material and the reaction medium are added into a reactor at the specific mass ratio; a hydrogen source is introduced to have the continuous reaction under the specific temperature and stirring conditions, and cellulose and hemicellulose in the biomass are conversed to be 2,5-2-methylfuran and 2-methylfuran respectively; the water phase and the organic phase are separated, the organic phase rich in 2,5-2-methylfuran and 2-methylfuran is obtained to serve as the liquid fuel, and the unreacted rest materials in the water phase are recycled. The method provided by the invention does not need to pre-process the biomass, can lower temperature and hydrogen consumption and loss needed by the reaction, reduces the separation and purification process, and can integrate 2,5-2-methylfuran and methylfuran into the fuel product directly.

Description

technical field [0001] The invention belongs to the field of solid waste recycling, and in particular relates to a method for preparing liquid fuel from biomass. Background technique [0002] Biomass refers to various organisms formed through photosynthesis, including all animals, plants and microorganisms. Biomass is a kind of renewable resource with abundant sources and low cost. It accounts for as much as 10% of the current global primary energy consumption. It is the fourth largest energy source after coal, oil and natural gas. to an important position. According to a 2016 report by the U.S. Department of Energy, on the basis of meeting the needs of food, feed and textiles, the global annual biomass production that can be used as energy is still as high as 1 billion tons. If this part of biomass can be fully utilized as raw materials to prepare biomass Fuels, electricity and related derivatives can reduce oil consumption by 31%. Among the many new energy sources and r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/06C10G1/08
CPCC10G1/065C10G1/086C10G2300/1011
Inventor 候其东鞠美庭甄梅楠张菲菲陈奕
Owner NANKAI UNIV
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