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A desulfurization adsorbent regenerator and regeneration method

A regenerator and adsorbent technology, applied in separation methods, filter regeneration, combustible gas purification/reconstruction, etc., can solve problems such as activity decline, increase rotation speed, inhibit the generation of zinc silicate, and avoid the phenomenon of flying temperature Effect

Active Publication Date: 2020-08-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a desulfurization adsorbent regenerator and regeneration method aiming at the technical problem that the activity of the adsorbent decreases after recycling.

Method used

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  • A desulfurization adsorbent regenerator and regeneration method
  • A desulfurization adsorbent regenerator and regeneration method
  • A desulfurization adsorbent regenerator and regeneration method

Examples

Experimental program
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Embodiment 1

[0065] Used to illustrate the beneficial effects of the desulfurization adsorbent regenerator and regeneration method of the present invention

[0066] (1) The structure of the regenerator is described as follows:

[0067] like Figures 4 to 6 As shown, the regenerator includes a shell 10, a gas distributor 20, a stirring device 30, and a cyclone separator 40, wherein the inside of the shell 10 is sequentially distributed with a gas collection section 111 and a reaction section 112 (gas collection section 111 and reaction section 111). Section 112 synthesizes straight cylinder section 11, the inner diameter of said straight cylinder section 11 is 200mm, height is 1500mm), expansion section 12 and separation section 13, and regeneration gas inlet 14 is formed on the casing 10 corresponding to said gas collection section 111, so The housing 10 corresponding to the reaction section is formed with a degenerated agent inlet 15 and a regenerated agent outlet 16; the gas distributor...

Embodiment 2

[0086] Used to illustrate the beneficial effects of the desulfurization adsorbent regenerator and regeneration method of the present invention

[0087] (1) The structure of the regenerator is described as follows: Figure 1-3 The difference between the shown desulfurization adsorbent regenerator and the regenerator in Example 1 is that the structure of the stirring device 30 is different, and the stirring device 30 does not include the second scraping type stirring paddle group, wherein the first scraping The height of the wall-type stirring paddle group is equal to the axial total height of the first scraping-type stirring paddle group and the second scraping-type stirring paddle group in embodiment 1, and the first scraping-type stirring paddle group includes nine first Scraping paddle 33.

[0088] (2) Adsorbent desulfurization-regeneration cycle method: With reference to Example 1, the difference is that the aforementioned regenerator is used instead of the regenerator in ...

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Abstract

The invention relates to the field of desulfurization adsorbent regeneration and discloses a desulfurization adsorbent regenerator and a regeneration method. The regenerator comprises a shell, a straight barrel section, an expansion section and a separation section are distributed inside the shell from bottom to top, the regenerator also comprises a stirring device disposed in the straight barrelsection in the axial direction, the stirring device includes a stirring shaft, at least one spiral ribbon impeller and a first wall-scraping impeller assembly, the spiral ribbon impeller can circle around the stirring shaft along the axial direction of the stirring shaft, the first wall-scraping impeller assembly comprises multiple first wall-scraping impellers, and the first wall-scraping impellers are orderly arranged along the axial direction of the stirring shaft. Through use of the regenerator, normal fluidization of the bed is promoted, fluidization quality is improved, foam is broken, cake is small, the mass transfer and heat transfer process is improved and the formation of zinc silicate is reduced. When the fluidized bed is plunged, channeled or agglomerated, through increasing ofa rotational speed of the stirring impeller, the broken particles are agglomerated, the operation cycle is prolonged and the consumption of start-stop operation is reduced.

Description

technical field [0001] The invention relates to the field of desulfurization adsorbent regeneration, in particular to a desulfurization adsorbent regenerator and a regeneration method. Background technique [0002] With the urgent requirement of environmental protection, the standard of sulfur content in gasoline / diesel is also continuously reduced. Gasoline adsorption desulfurization technology (S-Zorb for short) process has become an important means of upgrading the quality of oil products. The process has very high sulfur selectivity, low investment and operating costs, and has entered the stage of industrial operation. [0003] The S-Zorb process mainly includes four parts: feed and desulfurization reaction, adsorbent regeneration, adsorbent circulation and product stabilization. The feed and desulfurization reaction process is to heat and vaporize the sulfur-containing hydrocarbons and send hydrogen into the reactor for desulfurization reaction to obtain desulfurized ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/34C10G25/00
CPCB01J20/34C10G25/00C10G2300/202
Inventor 韩颖武雪峰毛俊义张同旺朱丙田刘凌涛张乐
Owner CHINA PETROLEUM & CHEM CORP