Sulfidizing agent supply method for use in catalyst wet sulfidizing process

A technology of vulcanizing agent and hydrogenation catalyst, applied in catalyst activation/preparation, chemical instruments and methods, chemical/physical process, etc., can solve the problems of slow decomposition rate of vulcanizing agent and insufficient vulcanization of catalyst

Active Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the liquid-phase hydrogenation system using dissolved hydrogen for hydrogenation, this method has the disadvantages of slow decomposition rate of sulfidation agent and insufficient catalyst sulfidation due to limited hydrogen supply.

Method used

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  • Sulfidizing agent supply method for use in catalyst wet sulfidizing process
  • Sulfidizing agent supply method for use in catalyst wet sulfidizing process
  • Sulfidizing agent supply method for use in catalyst wet sulfidizing process

Examples

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Embodiment

[0025] Catalyst vulcanization process for liquid-phase diesel hydrogenation process: The reactor of medium-sized diesel liquid-phase hydrogenation unit is filled with FH-UDS hydrofining catalyst developed and produced by Fushun Petrochemical Research Institute. The physical and chemical properties of the catalyst are shown in Table 1. Vulcanizing agent use C 2 S, C can be changed as needed during operation 2 S is injected into the hydrogen sulfide generation reactor, C 2 S can be mixed with some hydrocarbon oil and fed into the hydrogen sulfide generation reactor. C 2 The total amount of S is 150% of the theoretical requirement when the active metal in the hydrogenation catalyst is completely sulfided. The fresh hydrogen is pressurized to 4.5MPa and then enters the hydrogen sulfide generation reactor, while controlling the temperature of the hydrogen sulfide generation reactor within the range of 175-250°C to make hydrogen and C 2 S reacts to form hydrogen sulfide (CS 2 +...

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Abstract

The invention discloses a sulfidizing agent supply method for use in a catalyst wet sulfidizing process, which comprises the following steps of: arranging a hydrogen sulfide generator; allowing a sulfidizing agent and hydrogen gas to enter the hydrogen sulfide generator; reacting the hydrogen gas and the sulfidizing agent under the hydrogen sulfide generating conditions so as to generate a hydrogen sulfide-containing material; introducing the hydrogen sulfide-containing material and starting-up oil into a hydrogenization reactor for the sulfidizing of a hydrogenization catalyst. The method provided by the invention is best used in the sulfidizing process of the hydrogenation catalyst of liquid phase hydrogenization technology, can supply the hydrogen sulfide according to the demands of the sulfidizing process, and solves the problems of low sulfidizing agent decomposing speed, incomplete catalyst sulfidizing and the like caused by limited dissolved hydrogen amount in the catalyst sulfidizing process of the liquid phase hydrogenization technology.

Description

technical field [0001] The invention relates to a method for supplying a vulcanizing agent in a hydrogenation catalyst wet vulcanization process, in particular to a method for supplying a vulcanizing agent in a catalyst vulcanization process in a fixed-bed liquid-phase hydrogenation treatment process. Background technique [0002] In the conventional fixed-bed hydroprocessing process, catalytic hydrogenation reaction is usually required to remove impurities such as sulfur, nitrogen, oxygen, and metals in the raw material or to reduce the molecular size of the raw oil. In order to control the reaction temperature of the catalyst bed and avoid catalyst deactivation due to carbon deposition, a larger hydrogen-to-oil volume ratio is usually used, and there must be a large amount of hydrogen surplus after the hydrogenation reaction is completed. The excess hydrogen is usually pressurized by the circulating hydrogen compressor and then mixed with new hydrogen to continue as the hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/20B01J27/051C10G45/04
Inventor 宋永一刘继华方向晨李扬柳伟丁贺
Owner CHINA PETROLEUM & CHEM CORP
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