Low fused ring content coal-based anthracene oil and low-temperature coal-based fuel oil containing low fused ring content coal-based anthracene oil

Abstract

The invention relates to low fused ring content coal-based anthracene oil and low-temperature coal-based fuel oil containing the low fused ring content coal-based anthracene oil. The fused ring content in a fragrant conjugated structure in the coal-based anthracene oil is not greater than 2. A preparation method comprises the following steps that graphene with the mass fraction of 0.01-1% is addedinto the coal-based anthracene oil obtained by fractionation of coal tar, and high fused ring content component with fractional crystallization after cooling is the low fused ring content coal-basedanthracene oil. The low fused ring content coal-based anthracene oil is made into the fuel oil which has very good low temperature resistance, and no solid is precipitated under -20-10 DEG C. According to the low fused ring content coal-based anthracene oil and the low-temperature coal-based fuel oil containing the low fused ring content coal-based anthracene oil, a simple and safe physical methodis adopted, the cost is low, and easy implementation is achieved.

Description

technical field [0001] The invention belongs to the field of coal chemical industry and fuel science, and in particular relates to a coal-based anthracene oil with low fused ring number and a low-temperature-resistant coal-based fuel oil containing it. Background technique [0002] The production of liquid fuels using coal as raw material can be roughly divided into three categories: one is to produce fuel oil with coal as raw material, including direct liquefaction of coal to oil and indirect liquefaction to oil; the other is to produce liquid alternative fuels with coal as raw material , the main forms at this stage are coal methanol and dimethyl ether; the third is the various fractions of coal tar by-products in the steel coke industry (such as pitch, anthracene oil, wash oil and phenol oil, etc.). [0003] Due to the low price, the research on the fuel sourced from coal tar has begun to be paid attention to by energy and power workers. The coal tar pitch is emulsified ...

AI Technical Summary

Problems solved by technology

The common feature of these methods is to adopt the chemical reaction of hydrogenation, so that the condensed ring molecules in the anthracene oil lose the aromatic conjugated structure, thereby losing the low-temperature crystallization performance and being suitable for the use of fuel oil; but a large amount of hydrogen itself requires a specific Industrial sources, are flammable and explosive products and difficult to transport, in addition, hydrogenation catalysts are generally precious metals

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