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A process for desulfurization of petroleum associated gas

A technology of petroleum associated gas and desulfurization process, which is applied in the petroleum industry, gas fuel, fuel, etc., can solve the problems that can no longer meet the needs of industrial production, and achieve the effects of high desulfurization precision, increased specific surface area, and high efficiency

Active Publication Date: 2020-12-25
杭州勃扬能源设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the current domestic fine desulfurization technology is concerned, the desulfurization accuracy of general fine desulfurizers can reach 0.1ppm after desulfurization, but with the continuous emergence of new processes and technologies in recent years, this desulfurization accuracy is no longer To meet the needs of industrial production, the new technology and technology require that the desulfurization accuracy of the fine desulfurizer can reach 0.05ppm after desulfurization, or even lower than 0.02ppm.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: Preparation one of composite desulfurizer:

[0025] This embodiment adopts the following steps to prepare composite desulfurizer:

[0026] First take the raw material by the following parts by weight:

[0027] 80 parts of copper nitrate, 100 parts of zinc nitrate, 30 parts of pore-forming agent, 40 parts of montmorillonite, 30 parts of sponge particles with a particle size of 4-5mm, 180g of magnesium hydroxide, 120g of ferric chloride;

[0028] Preparation steps:

[0029] Add montmorillonite to deionized water, and use ultrasonic dispersion treatment with a frequency of 35kHz to prepare a suspension, add a spherical sponge to the suspension, stir evenly to make the sponge absorb the suspension and sink to the bottom, mix magnesium hydroxide and ferric chloride In the suspension, after stirring evenly, heat to 40°C. When a reddish-brown precipitate appears and the solution becomes colorless, continue to stir for 1min. After the reaction, take out the spon...

Embodiment 2

[0033] Embodiment 2: the preparation two of composite desulfurizer:

[0034] This embodiment adopts the following steps to prepare composite desulfurizer:

[0035] First take the raw material by the following parts by weight:

[0036] 80 parts of copper nitrate, 80 parts of zinc nitrate, 30 parts of pore-forming agent, 40 parts of montmorillonite, 30 parts of sponge particles with a particle size of 4-5mm, 180g of magnesium hydroxide, 120g of ferric chloride;

[0037] Preparation steps:

[0038] Add montmorillonite to deionized water, and use ultrasonic dispersion treatment with a frequency of 35kHz to prepare a suspension, add a spherical sponge to the suspension, stir evenly to make the sponge absorb the suspension and sink to the bottom, mix magnesium hydroxide and ferric chloride Add it into the suspension, stir evenly, heat to 43°C, when a reddish-brown precipitate appears and the solution becomes colorless, continue to stir for 2 minutes, take out the sponge particles ...

Embodiment 3

[0040] Embodiment 3: the preparation three of composite desulfurizer:

[0041] This embodiment adopts the following steps to prepare composite desulfurizer:

[0042] First take the raw material by the following parts by weight:

[0043] 80 parts of copper nitrate, 100 parts of zinc nitrate, 40 parts of pore-forming agent, 40 parts of montmorillonite, 30 parts of sponge particles with a particle size of 4-5mm, 180g of magnesium hydroxide, 120g of ferric chloride;

[0044] Preparation steps:

[0045]Add montmorillonite to deionized water, and use ultrasonic dispersion treatment with a frequency of 35kHz to prepare a suspension, add a spherical sponge to the suspension, stir evenly to make the sponge absorb the suspension and sink to the bottom, mix magnesium hydroxide and ferric chloride Add it into the suspension, stir evenly, heat to 45°C, when a reddish-brown precipitate appears and the solution becomes colorless, continue to stir for 2 minutes, take out the sponge particle...

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PUM

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Abstract

The invention discloses an oil field gas desulfurization technology, and relates to the technical field of oil field gas separation. The desulfurization technology comprises the following steps of gasinlet pre-separation, gas and liquid separation and desulfurization; according to the step of desulfurization, crude desulfurization and fine desulfurization are included; a ferric oxide desulfurization agent is adopted for crude desulfurization, a composite desulfurization agent is adopted for fine desulfurization, and the composite desulfurization agent is porous spherical particles adopting aferric oxide as an internal skeleton and adopting CuO-ZnO as a shell. In order to improve the desulfurization precision and efficiency, the composite desulfurization agent adopted in the technologicalprocess is modified, and the composite desulfurization agent has the unique structure and the large specific surface area, so that the purpose of high-precision and high-efficiency desulfurization isachieved.

Description

technical field [0001] The invention relates to the technical field of petroleum associated gas separation, in particular to a petroleum associated gas desulfurization process. Background technique [0002] The associated gas produced in the process of oil and natural gas extraction often contains sulfur, and it must be desulfurized in subsequent processing or use. If desulfurization is not performed, pipeline corrosion is prone to occur during subsequent processing and use, and sulfur dioxide produced by combustion produces sulfur. Exhaust gas, environmental pollution and other issues. The forms of sulfur in gas include inorganic sulfur and organic sulfur. Inorganic sulfur is mainly sulfur and hydrogen sulfide. Organic sulfur mainly includes mercaptans, sulfides, thiophenes, and carbonyl sulfides, which brings difficulties to the comprehensive treatment of associated gas. Since the sulfur in the associated gas mainly exists in the form of inorganic sulfur, usually associat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/10
CPCC10L3/103
Inventor 李可心卢嘉威李士华
Owner 杭州勃扬能源设备有限公司