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Biomass-based liquid fuel and production process thereof

A production process and liquid fuel technology, which is applied in the preparation of biofuels, liquid hydrocarbon mixtures, and the petroleum industry. It can solve the problems of complex process, low fuel utilization rate, and low biomass conversion rate, and increase the specific surface area. , Improve the catalytic activity, the effect of excellent catalytic activity

Inactive Publication Date: 2020-10-30
许洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing biomass fuels have the problems of incomplete combustion and serious waste, which directly lead to high carbon deposition and low fuel utilization, which has become a major bottleneck restricting the development of current bio-liquid fuels.
The thermochemical conversion method can be divided into two methods: direct liquefaction and indirect liquefaction. The former has a complex process, high energy consumption and difficult to remove the tar produced in the production process. The conversion rate of the latter is relatively low, generally lower than 45w.t. % (by weight of dry matter)
[0005] Patent CN106318477B discloses a method for preparing high-grade liquid fuel by catalytic pyrolysis of biomass, with W 2 N / AC, Mo 2 N / AC, WP / AC or MoP / AC are used as catalysts to pyrolyze biomass to obtain liquid fuels. Although the use of noble metals is avoided, the conversion rate of biomass is not high, and the calorific value of the obtained liquid fuels is not ideal. Poor, still unable to meet production needs

Method used

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  • Biomass-based liquid fuel and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A kind of production process of liquid fuel based on biomass, with biomass (hemp stalk) as raw material, through pretreatment, pyrolysis reaction and catalytic cracking reaction, obtains liquid fuel; The catalyst is prepared by the following method:

[0036] (A) First prepare 100 parts of diatomaceous earth into a suspension, then add 65 parts of α-naphthylamine monomer to the suspension, undergo polymerization, filter and wash, roast and carbonize, and then disperse in water to make a solid content 40w.t.% carrier slurry;

[0037] (B) Then add 2 parts of tetraethyl orthosilicate and 4 parts of ZSM-5 molecular sieve to the acid solution with pH=3.5, stir and hydrolyze, dry and mix with 0.5 part of thiourea and grind evenly, roast to obtain composite powder, then Disperse the composite powder in water to make a molecular sieve slurry with a solid content of 40w.t.%.

[0038] (C) adding 0.04 parts of binder to the carrier slurry obtained in step (A), and ultrasonically ...

Embodiment 2

[0053] A kind of production process of liquid fuel based on biomass, with biomass (hemp stalk) as raw material, through pretreatment, pyrolysis reaction and catalytic cracking reaction, obtains liquid fuel; The catalyst is prepared by the following method:

[0054] (A) First prepare 100 parts of diatomaceous earth into a suspension, then add 75 parts of α-naphthylamine monomer to the suspension, undergo polymerization, filter and wash, roast and carbonize, and then disperse in water to make a solid content 30w.t.% carrier slurry;

[0055] (B) Then add 1 part of ethyl orthosilicate and 6 parts of ZSM-5 molecular sieve to the acid solution with pH=4.5, stir and hydrolyze, dry and mix with 0.3 part of thiourea and grind evenly, roast to obtain composite powder, then Disperse the composite powder in water to make a molecular sieve slurry with a solid content of 50w.t.%.

[0056] (C) adding 0.03 parts of binder to the carrier slurry obtained in step (A), and ultrasonically oscill...

Embodiment 3

[0071] A kind of production process of liquid fuel based on biomass, with biomass (hemp stalk) as raw material, through pretreatment, pyrolysis reaction and catalytic cracking reaction, obtains liquid fuel; The catalyst is prepared by the following method:

[0072] (A) First prepare 100 parts of diatomaceous earth into a suspension, then add 70 parts of α-naphthylamine monomer to the suspension, undergo polymerization, filter and wash, roast and carbonize, and then disperse in water to make a solid content 35w.t.% carrier slurry;

[0073] (B) Then add 1.5 parts of tetraethyl orthosilicate and 5 parts of ZSM-5 molecular sieve to the acid solution with pH=4, stir and hydrolyze, dry and mix with 0.4 part of thiourea and grind evenly, roast to obtain composite powder, then Disperse the composite powder in water to make a molecular sieve slurry with a solid content of 45w.t.%.

[0074] (C) adding 0.035 parts of binder to the carrier slurry obtained in step (A), and ultrasonically...

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Abstract

The invention relates to biomass-based liquid fuel and a production process thereof. According to the invention, biomass is used as a raw material and subjected to pretreatment, a pyrolytic reaction and a catalytic cracking reaction to obtain the liquid fuel; and the technical key point of the invention lies in a catalyst used in a catalytic cracking reaction, and the catalyst is prepared by mixing carrier slurry prepared from diatomite and an alpha-naphthylamine monomer with molecular sieve slurry prepared from tetraethoxysilane, a ZSM-5 molecular sieve, thiourea and the like. By means of thecatalytic action of the catalyst, a high conversion rate of biomass is achieved, the biomass is fully degraded, and the heat value of the obtained liquid fuel is high.

Description

technical field [0001] The invention belongs to the technical field of new energy, and relates to a biomass-based liquid fuel and a production process thereof. Background technique [0002] Traditional fuels are particularly prone to incomplete combustion during combustion, and the content of particulate matter, nitrogen oxides and hydrocarbons in the exhaust gas is high, causing great pollution and harm to the environment. Moreover, with the rapid development of the economy and human society in recent years, the consumption of petrochemical resources around the world has intensified. The slow consumption growth rate predicts that there will be a large oil supply gap in the future, and the increase in foreign dependence will inevitably bring about serious oil security problems, and oil security is an important part of national security. Global petroleum resources are very limited, and the price of petroleum products continues to rise with the reduction of global reserves, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10G1/00
CPCC10B53/02C10G1/00C10G1/002C10G2300/1011C10G2300/4087Y02E50/10
Inventor 不公告发明人
Owner 许洁
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