Hydrotreating device

Abstract

The invention discloses a hydrotreating device, which mainly comprises a flash evaporation tank, a heating furnace, a reactor and a heat exchanger, wherein the reaction material outlet of the heat exchanger is communicated with the material inlet of the flash evaporation tank through a pipeline, the gas phase material outlet of the flash evaporation tank is communicated with the material inlet ofthe heating furnace through a pipeline, the material outlet of the heating furnace is communicated with the material inlet of the reactor through a pipeline, the material outlet of the reactor is communicated with the reaction product inlet of the heat exchanger through a pipeline, and the liquid phase material outlet of the flash evaporation tank is communicated with the material inlet of the reactor through a pipeline. The hydrotreating device can prevent a furnace tube from coking, reduce the pressure drop of a reaction system and prolong the operation period of the device, and further hasother advantages.

Description

Technical field [0001] The invention belongs to the field of petrochemical hydrogenation, and involves using one or more of crude oil, asphaltene oil, residual oil, oil slurry, wax oil, diesel, kerosene, gasoline, and naphtha as raw materials, in the presence of hydrogen and catalyst Under conditions, a catalytic hydrogenation reaction device for producing clean fuel or chemical raw materials, specifically, relates to a hydrotreating device. Background technique [0002] The hydrogenation process is a general term for the catalyst processing process of petroleum fractions in the presence of hydrogen. The current hydrogenation processes used in refineries are mainly hydrorefining, hydroupgrading, hydrotreating, hydrocracking, hydrogen depressurization, and lubricating oil Hydrogenation, etc., use one or more of crude oil, asphaltene oil, residual oil, oil slurry, wax oil, diesel, kerosene, gasoline, and naphtha as raw materials to produce clean fuel or chemical raw materials. Dif...

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Problems solved by technology

[0006] In order to solve the difficulty in the multi-channel average distribution of the mixed-medium heating furnace in the existing hydrogen-mixing process device in front of the furnace, it is easy to appear the mixed-phase medium bias flow of the heating furnace, the fouling and coking of the furnace tube, and the explosion of the tube, etc., which affect the efficiency and safe operation of the heating furnace. , and in order to solve the technical problem that the existing post-furnace hydrogen mixing process device may make the temperature after mixing unable to reach the required temperature at the inlet of the hydrogenation reactor, the present invention provides a hydrogenation treatment device that can be used for hydrogenation Petroleum and petrochemical processing processes such as hydrogen refining, hydrogenation upgrading, hydrotreating, and hydrocracking

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