Method for regenerating spent catalyst and method and device for desulfurizing sulfur-containing hydrocarbon

A technology for catalysts to be produced and sulfur-containing hydrocarbons, which can be used in catalyst regeneration/reactivation, chemical instruments and methods, physical/chemical process catalysts, etc. Activity and strength, the effect of avoiding excessive water pressure

Active Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a method and device for desulfurization of sulfur-containing hydrocarbons, in order to solve the problem of high catalyst consumption in the desulfurization unit of sulfur-containing hydrocarbons

Method used

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  • Method for regenerating spent catalyst and method and device for desulfurizing sulfur-containing hydrocarbon
  • Method for regenerating spent catalyst and method and device for desulfurizing sulfur-containing hydrocarbon
  • Method for regenerating spent catalyst and method and device for desulfurizing sulfur-containing hydrocarbon

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specific Embodiment approach

[0123] The method includes:

[0124] (1) introducing hydrogen and sulfur-containing hydrocarbon raw materials into a sulfur-containing hydrocarbon desulfurization unit to contact with a catalyst to perform a desulfurization reaction to obtain a raw catalyst and a desulfurization stream;

[0125] (2) regenerating the spent catalyst;

[0126] Wherein, the regeneration operation in step (2) is carried out using the method described in the aforementioned first aspect;

[0127] The operation of introducing hydrogen and sulfur-containing hydrocarbon feedstock into the sulfur-containing hydrocarbon desulfurization unit to contact with the catalyst includes: introducing hydrogen and sulfur-containing hydrocarbon feedstock into the desulfurization reactor 1 to contact with the catalyst for desulfurization reaction, and the obtained The spent catalyst is introduced into the regeneration unit sequentially from the reactor receiver 2, the lock hopper 3, the regenerator feed tank 6 and th...

Embodiment 1

[0153] use figure 1 The sulfur-containing hydrocarbon desulfurization unit shown performs desulfurization.

[0154] Wherein, in the sulfur-containing hydrocarbon desulfurization unit:

[0155] Desulfurization reactor: 3 components are set in the settling section of the reactor, the opening of the components is circular, the angle between the baffle plate of the cone part of the component and the horizontal plane is 50°, the component is provided with a 200mm high enclosure on the cone part, and the component The ratio of the upper opening of the cone part to the cross-sectional area of ​​the reactor settling section is 0.2, and the reactor settling section is provided with a cyclone separator;

[0156] The first regenerator: There are two upper and lower gas distributors in the regeneration section. The upper gas distributor is a tubular distributor, and the branch pipe is equipped with nozzles with openings facing downwards. The angle a between the center line of the nozzle ...

Embodiment 2

[0166] Adopt the sulfur-containing hydrocarbon desulfurization device identical with embodiment 1 to carry out desulfurization, wherein, difference is:

[0167] In the sulfur-containing hydrocarbon desulfurization unit:

[0168] Desulfurization reactor: 3 components are set in the settling section of the reactor. The opening of the components is square. The angle between the baffle plate of the cone part of the component and the horizontal plane is 40°. The ratio of the upper opening of the cone part to the cross-sectional area of ​​the settling section of the reactor is 0.1; the settling section of the reactor is provided with a cyclone separator;

[0169] The first regenerator: There are two upper and lower gas distributors in the regeneration section. The upper gas distributor is a tubular distributor, and the branch pipe is equipped with nozzles with openings facing downwards. The angle a between the center line of the nozzle and the vertical line is 10. °, the first rege...

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Abstract

The invention relates to the field of desulfurization of sulfur-containing hydrocarbon raw materials, and discloses a method for regenerating a spent catalyst, a sulfur-containing hydrocarbon desulfurization method and a sulfur-containing hydrocarbon desulfurization device. The method comprises the following steps: introducing the spent catalyst from a sulfur-containing hydrocarbon desulfurization unit into a regeneration unit containing a first regeneration area and a second regeneration area for regeneration; the spent catalyst is firstly subjected to first regeneration in the first regeneration zone and then enters the second regeneration zone to be subjected to second regeneration, the oxygen content of feeding gas in the first regeneration zone is controlled to be 6-12% by volume, and the oxygen content of the feed gas in the second regeneration zone is controlled to be higher than the oxygen content of the feed gas in the first regeneration zone, by adopting the sulfur-containing hydrocarbon desulfurization method and device provided by the invention, the agent consumption of the catalyst is reduced, the actual hydrogen consumption is reduced, the sulfur content of the product gasoline is reduced, the octane number is increased, and the generation amount of zinc silicate in the regenerated catalyst is reduced.

Description

technical field [0001] The invention relates to the field of desulfurization of sulfur-containing hydrocarbon raw materials, in particular to a method for regenerating a spent catalyst, a method for desulfurizing sulfur-containing hydrocarbons, a device for desulfurizing sulfur-containing hydrocarbons, and a method for desulfurizing using the device. Background technique [0002] In order to protect the environment, countries around the world have set stricter and stricter standards for the sulfur content of gasoline. [0003] Adsorption desulfurization (S Zorb) technology is a technology for producing ultra-low sulfur clean gasoline, which can economically reduce the sulfur content in gasoline to 10 μg / g or lower. It has a good market prospect in application. [0004] Most of the existing S Zorb adsorbents are desulfurization adsorbents prepared with silicon / aluminum materials as the carrier and zinc / nickel as the active component. During the reaction process, the adsorpti...

Claims

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Application Information

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IPC IPC(8): C10G45/04C10G70/02C10L3/10C10L3/12B01J38/04B01J38/12
CPCC10G45/04C10G70/02C10L3/103C10L3/12B01J38/12B01J38/04C10G2300/104C10G2300/1044C10G2300/70C10G2400/02C10G2300/202C10G2400/04C10G2300/1055C10G2300/1059C10G2300/1037Y02P20/584
Inventor 朱丙田侯栓弟朱振兴张同旺毛俊义张哲民刘凌涛韩颖邹亢
Owner CHINA PETROLEUM & CHEM CORP
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