Full liquid phase hydrogenation method of coal tar

A liquid-phase hydrogenation and coal tar technology, which is applied in the fields of hydrogenation treatment process, petroleum industry, and hydrocarbon oil treatment, can solve the problems of difficult control of reaction heat, high hydrogen consumption, and large energy consumption, so as to reduce hydrogen non-reaction The effect of reducing loss, controlling reaction heat, and saving investment costs
CN102585899AActive Publication Date: 2012-07-18CHANGLING PETRO CHEM ENG DESIGN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGLING PETRO CHEM ENG DESIGN
Publication Date
2012-07-18

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Abstract

The invention discloses a full liquid phase hydrogenation method of coal tar, which is characterized by comprising the following steps that coal tar raw materials respectively perform full liquid phase pre-hydrogenation reaction and full liquid phase main hydrogenation reaction, and main hydrogenation generated oil respectively generates naphtha products, diesel products and tail oil products through oil gas-liquid separation and distillation. The full liquid phase hydrogenation method enables the coal tar to perform the pre-hydrogenation reaction and the main hydrogenation reaction under the full liquid phase. The method can be suitable for hydrogenation modification of full fraction coal tar of any one or more of high-temperature coal tar, middle-temperature coal tar and low-temperature coal tar. During hydrogenation, coking can be effectively inhibited, reaction heat is controlled, energy loss is reduced, long-period running of a coal tar hydrogenation device is achieved, hydrogen consumption of the whole hydrogenation device can be reduced, investment of a compressor is reduced, and clean naphtha, diesel and tail oil products with sulfur nitrogen contents smaller than 400 parts per million (ppm) can be obtained.
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Description

technical field

[0001] The invention relates to the effective utilization of coal tar, in particular to a full-liquid-phase hydrogenation treatment method of coal tar. Background technique

[0002] The rapid development of the world economy has driven the rapid growth of energy demand and consumption. With the depletion of the world's oil resources and the deepening of my country's energy crisis, changing the energy consumption structure and finding reasonable and economical alternative energy sources are the focus and focus of current research.

[0003] my country's coal resource reserves far exceed oil and natural gas resources. Give full play to the advantages of abundant and cheap coal resources, supplement the shortage of domestic oil and gas resources, and transform coal resources from solid fuels to chemical and clean oil raw materials, which can not only improve the economic benefits of enterprises , and can reduce environmental pollution, with good social benefits. ...

Claims

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