Production of large-specific-weight aircraft liquid petroleum oil at maximum from coal liquefied oil

A technology for coal liquefied oil and aviation kerosene, which is used in the preparation of liquid hydrocarbon mixtures, petroleum industry, and refining to remove heteroatoms, etc., can solve the problems of low specific gravity of aviation kerosene production and low yield of aviation kerosene production.

Active Publication Date: 2007-01-17
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

[0009] The yield of aviation kerosene produced in the prior art is low, and the proportion of aviation kerosene produced is low

Method used

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  • Production of large-specific-weight aircraft liquid petroleum oil at maximum from coal liquefied oil

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Embodiment

[0044] The reaction conditions and properties of the reaction products in the stable hydrogenation step are listed in Tables 2-3 respectively. Tables 4 to 5 are lists of properties of feedstock oil, reaction conditions, and properties of reaction products in the hydrogenation upgrading step. It can be seen from Table 1 that the nitrogen and oxygen content of coal liquefied oil before stable hydrogenation are high, and the bromine value is high. The data in Table 3 shows that after the stable hydrogenation, the nitrogen content dropped significantly, and the bromine value also dropped to a very low level, achieving the purpose of stable hydrogenation. The data in Tables 4 to 6 show that the smoke point of the hydrogenation upgrading feedstock is very low, only 11mm, and it reaches 23mm after hydrogenation upgrading, and the density is greater than 0.84g / cm 3 , The properties such as flash point and freezing point also meet the index requirements of aviation kerosene with large...

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Abstract

Production of large-specific weight aviation kerosene from coal liquefied oil at maximum is carried out by entering coal liquefied oil into protective reactor, contacting it with hydrogen and protective agent, entering reactant of protective reactor into stabilized hydrogenation main reactor, contacting with hydrogen and hydrogenation stabilized catalyst, separating for reactant of stabilized hydrogenation main reactor to obtain intermediate distillate, entering it into hydrogenation qualified reactor, contacting with hydrogen, hydrogenation refined catalyst and hydrogenation qualified catalyst and separating from reactant of hydrogenation qualified reactor to obtain the final product. The recovery rate of aviation kerosene can reach to 45% and its specific weight is >0.84g / cm3.

Description

technical field [0001] The invention relates to a method for hydrogenation treatment of liquid hydrocarbons obtained by destructive hydrogenation of coal. More specifically, it is a method for producing aviation kerosene from coal liquefied oil. Background technique [0002] Coal and oil are the main primary energy sources. my country is a country rich in coal resources, with proven coal reserves of more than 1 trillion tons and an annual output of 1 billion tons. my country's oil resources are relatively scarce, and only a large amount of imports can solve the huge contradiction between supply and demand. On the other hand, gradually stricter environmental protection regulations require the use of clean fuels, forcing the primary energy structure to be adjusted. The proportion of coal will decrease, while the proportion of oil will increase. Using coal as an alternative raw material to produce fuel oil is one of the realistic ways to achieve basic...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/02C10G1/06
Inventor 胡志海董建伟门卓武熊震霖辛靖聂红
Owner CHINA PETROLEUM & CHEM CORP
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