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Method for preparing hydrocarbon fuel through rapeseed oil residues

A technology for hydrocarbon fuel and rapeseed oil, which is used in the preparation of liquid hydrocarbon mixtures, petroleum industry, biological raw materials, etc., to achieve the effect of improving saturation

Inactive Publication Date: 2015-11-11
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic soapstock is mostly used for feed, soap making and acidified oil, and there are few studies on making it into fuel oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 500g spherical silicon carbide (diameter 10mm), 250g HZSM-5 spherical catalyst (diameter 10mm, Si / C=30, specific surface area 400m 2 / g) into a three-necked quartz bottle with mechanical stirring and a condenser, placed in a microwave pyrolysis instrument, fixed power to raise the temperature to 550°C, mechanical stirring 80r / min, gradually add 500g of rapeseed oil foot, 30min to finish, continue Keep 550°C catalytic cracking without fraction formation, microwave cracking to get 358g of hydrocarbon fuel, GC-MS analysis, the content of saturated hydrocarbons in the pyrolysis fuel is 90.2%, and the content of naphthenes and aromatics is 81.7%.

Embodiment 2

[0020] 500g spherical silicon carbide (diameter 5mm), 100gHZSM-5 spherical catalyst (diameter 5mm, Si / C=25, specific surface area 360m 2 / g) into a three-necked quartz bottle with mechanical stirring and a condenser, placed in a microwave cracking instrument, fixed power to 500°C, mechanical stirring 60r / min, gradually adding 500g of rapeseed oil foot, 30min to finish, continue Maintain 500°C catalytic cracking without fraction formation, microwave cracking to obtain 327g of hydrocarbon fuel, GC-MS analysis, the content of saturated hydrocarbons in the pyrolysis fuel is 87.6%, of which the content of naphthenes and aromatic hydrocarbons reaches 76.2%.

Embodiment 3

[0022] 500g spherical silicon carbide (diameter 15mm), 250g HZSM-5 spherical catalyst (diameter 15mm, Si / C=30, specific surface area 420m 2 / g) into a three-necked quartz bottle with mechanical stirring and a condenser, placed in a microwave cracking apparatus, fixed power to raise the temperature to 550°C, mechanical stirring at 90r / min, gradually add 500g of rapeseed oil foot, 30min to finish, continue Keep catalytic cracking at 550°C and no fraction is formed. Microwave cracking yields 343g of hydrocarbon fuel. GC-MS analysis shows that the content of saturated hydrocarbons in the pyrolysis fuel is 88.4%, of which the content of naphthenes and aromatics reaches 78.9%.

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Abstract

A method for preparing hydrocarbon fuel through rapeseed oil residues includes the following steps that firstly, silicon carbide spherical particles and an HZSM-5 spherical catalyst are weighed according to the mass ration of the silicon carbide spherical particles to the HZSM-5 spherical catalyst being 1:1-10:1, and the silicon carbide spherical particles and the HZSM-5 spherical catalyst are mixed evenly and added into a quartz reaction kettle; secondly, the quartz reaction kettle is placed in a microwave pyrolysis device and heated to 450-600 DEG C, mechanical stirring is conducted at the speed of 60-120 r / min, the rapeseed oil residues are added gradually, generated steam condenses, and the hydrocarbon fuel is obtained. The method is simple in process and quick in pyrolysis, obtained pyrolysis fuel is high in saturation degree, the content of cycloparaffin and aromatic hydrocarbons can reach 75%, the content of oxygen is low, low-temperature flowability is good, the calorific value is high, and stability is high.

Description

technical field [0001] The invention belongs to the technical field of biomass energy conversion. Background technique [0002] Most of the world's energy is petroleum derivatives and different fractions of petroleum. Aviation kerosene is one of the petroleum products, mainly composed of hydrocarbons of different fractions. my country's oil resources are relatively scarce, and its overdraft consumption also seriously threatens homeland security and restricts economic development. The research and development of renewable energy has become an urgent problem. Biofuels are defined as gaseous or liquid fuels produced from biomass energy. Renewable hydrocarbon fuels that have received widespread attention in biofuels have made significant progress in recent years. Compared with traditional biodiesel, high-quality hydrocarbon fuels have a viscosity Small size, good fluidity at low temperature and high cetane number. [0003] my country is a large vegetable oil producing country....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 王允圃刘玉环阮榕生
Owner NANCHANG UNIV
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