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Catalyst filling method for decomposing hydrogen sulfide, and method for decomposing hydrogen sulfide

A catalyst, hydrogen sulfide technology, applied in separation methods, chemical instruments and methods, sulfur compounds, etc., can solve the problems of unstable hydrogen sulfide conversion rate, low hydrogen sulfide conversion rate, etc., achieving simple operation, low preparation cost, high The effect of hydrogen sulfide conversion

Active Publication Date: 2019-08-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings of low hydrogen sulfide conversion rate and unstable hydrogen sulfide conversion rate in the catalysts that catalyze the decomposition of hydrogen sulfide to generate elemental sulfur and hydrogen provided by the prior art, and provide a new method for decomposing sulfide Catalyst loading method for hydrogen and a method for decomposing hydrogen sulfide

Method used

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  • Catalyst filling method for decomposing hydrogen sulfide, and method for decomposing hydrogen sulfide
  • Catalyst filling method for decomposing hydrogen sulfide, and method for decomposing hydrogen sulfide
  • Catalyst filling method for decomposing hydrogen sulfide, and method for decomposing hydrogen sulfide

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0029] Regarding the specific implementation of the decomposition catalyst A, preferably, in the decomposition catalyst A, the active metal component is a mixture of the first component and the second component, and the first component is Ti, the second component is selected from at least one of V, Cr, Mo, W, Mn, Fe, Co, Ni, Pd, Pt, Cu, Ag, Zn and Cd.

[0030] More preferably, in the decomposition catalyst A, the second component is at least one selected from Mo, W, Mn, Co, Ni and Cr.

[0031]Preferably, in the decomposition catalyst A, in the mixture containing the first component and the second component, the content of the first component in terms of elements is 7 to 35% by weight, and the The content of the second component in terms of elements is 65 to 93% by weight; more preferably, in the decomposition catalyst A, in the mixture containing the first component and the second component, the second component The content of one component in terms of elements is 12-30% by w...

Embodiment 1

[0048] Example uses figure 1 The shown low-temperature plasma reactor carries out the decomposition reaction of hydrogen sulfide, specifically, figure 1 The structure of the low temperature plasma reactor shown is:

[0049] The reactor includes:

[0050] An inner cylinder 1, the inner cylinder is respectively provided with a reactor inlet 11, a gas product outlet 12 and a liquid product outlet 13, wherein all side walls of the inner cylinder are formed by a barrier medium, and the material forming the barrier medium It is hard glass, and in each test, a total of 200mL of the aforementioned catalysts are filled in the inner cylinder of the reactor, and the loading types of the catalysts are as shown in Table 2;

[0051] An outer cylinder 2, the outer cylinder is nested outside the inner cylinder, and the outer cylinder is respectively provided with a heat transfer medium inlet 21 and a heat transfer medium outlet 22;

[0052] A central electrode 3, the central electrode is a...

Embodiment 2

[0065] This embodiment is carried out using a method similar to that of embodiment 1, except that the discharge conditions in this embodiment are: voltage 17.9kV, frequency 7.8kHz, current 0.75A.

[0066] And the conditions of the decomposition reaction are as follows: the reaction temperature is 65° C., the reaction pressure is 0.06 MPa, and the average residence time of the reactants in the low-temperature plasma reactor is 17.5 s.

[0067] All the other are the same as in Example 1.

[0068] The results of this example are listed in Table 3.

[0069] table 3

[0070]

[0071] It can be seen from the results in Table 2 and Table 3 that when the catalyst for decomposing hydrogen sulfide provided by the present invention is used in the decomposition reaction of hydrogen sulfide, the conversion rate of hydrogen sulfide is significantly improved.

[0072] Moreover, the catalyst for decomposing hydrogen sulfide provided by the present invention can maintain the conversion ra...

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Abstract

The invention relates to the field of hydrogen sulfide decomposition, discloses a catalyst filling method for decomposing hydrogen sulfide, and a method for decomposing hydrogen sulfide. The filling method comprises: sequentially loading a decomposition catalyst A and a decomposition catalyst B in a low-temperature plasma reactor according to a stream direction, wherein the decomposition catalystA and the decomposition catalyst B respectively contain a carrier and an active metal component supported on the carrier, and the average particle size of the decomposition catalyst B is larger than the average particle size of the decomposition catalyst A. According to the present invention, with the application of the filling method in the decomposition of hydrogen sulfide into elemental sulfurand hydrogen, the high hydrogen sulfide conversion rate can be obtained compared with the methods in the prior art.

Description

technical field [0001] The invention relates to the field of hydrogen sulfide decomposition, in particular to a catalyst loading method for decomposing hydrogen sulfide and a method for decomposing hydrogen sulfide. Background technique [0002] Hydrogen sulfide (H 2 S) is a highly toxic and foul-smelling acid gas, which not only causes corrosion of metals and other materials, but also easily leads to catalyst poisoning and deactivation in chemical production; in addition, hydrogen sulfide can also endanger human health and cause environmental pollution. Therefore, the harmless treatment of a large amount of hydrogen sulfide gas produced in industrial fields such as oil, natural gas, coal and mineral processing needs to be solved urgently, no matter in terms of process requirements, equipment maintenance or environmental protection requirements. [0003] At present, the Claus method is commonly used in industry to treat hydrogen sulfide, and the method is to partially oxidi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52B01D53/88C01B17/04
CPCB01D53/8612B01D53/869B01D53/88B01D2255/1021B01D2255/1023B01D2255/104B01D2255/207B01D2255/20707B01D2255/20715B01D2255/20723B01D2255/2073B01D2255/20738B01D2255/20746B01D2255/20753B01D2255/20761B01D2255/20769B01D2255/20776B01D2255/20784B01D2255/20792B01D2255/70B01D2255/904B01D2259/818C01B17/0434
Inventor 任君朋张婧厉建祥张铁李亚辉朱云峰孙峰石宁
Owner CHINA PETROLEUM & CHEM CORP
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