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System and method used for removing hydrogen sulfide in oilfield associated gas and secondary gas

A hydrogen sulfide, oil field technology, applied in chemical instruments and methods, separation methods, sulfur preparation/purification, etc., can solve the problem of difficult disposal of waste desulfurizers, etc., and achieve the effect of preventing long-term deposition

Pending Publication Date: 2018-11-02
PANJIN DAOBOER PETROLEUM NEW TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing devices and methods for processing hydrogen sulfide gas in the market are dry desulfurization, but dry desulfurization has the problem of difficulty in disposing of waste desulfurizers, so it will gradually withdraw from the market

Method used

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  • System and method used for removing hydrogen sulfide in oilfield associated gas and secondary gas
  • System and method used for removing hydrogen sulfide in oilfield associated gas and secondary gas
  • System and method used for removing hydrogen sulfide in oilfield associated gas and secondary gas

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Experimental program
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Embodiment

[0062] The hydrogen sulfide removal system and method involved in the present invention have been practiced in Huanxiling Oil Production Plant of Liaohe Oilfield. Huanxiling Oil Production Plant Qi 40 block No. 30 station steam flooding secondary gas contains hydrogen sulfide concentration range of 0.15%-1.2%, carbon dioxide content> 80%, heavy hydrocarbon 0.8-1.5%, gas volume 260m 3 / d—5500m 3 / d; After the system and method for removing hydrogen sulfide of the present invention, H 2 The concentration of S is below 10ppm, which has great economic and environmental benefits.

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Abstract

The invention belongs to the field of oil field tail gas treatment, and relates to a system and a method used for removing hydrogen sulfide in oilfield associated gas and secondary gas. According to the system, a double path mode is adopted, one path is adopted for absorption, and one path is adopted for oxidation regeneration. The numbers of absorbing towers and regeneration towers can be designed based on-site practical situations. Compared with other conventional technology, the system and the method possesses following advantages: the safety is better, environment protection is achieved, raw materials are saved, the effect is stable, the separated gas is capable of reaching discharging requirements, rapid sulphur enriching is realized, the enriched sulphur particles are large, blocks are large, the purity is high, and the utilization value is high.

Description

technical field [0001] The invention belongs to the field of oilfield tail gas treatment and relates to a system and method for removing hydrogen sulfide from oilfield associated and secondary gas. Background technique [0002] Hydrogen sulfide is a colorless, foul-smelling, highly irritating, toxic gas. It is a dibasic weak acid that is slightly soluble in water to generate hydrogen sulfuric acid. The existence of hydrogen sulfide will not only cause corrosion of equipment and pipelines, but also seriously threaten personal safety. When burning, a large amount of SO is released X Gas, which pollutes the atmosphere. With the advancement of oil and gas field development technology, domestic attention has been paid to hydrogen sulfide and relevant research has been carried out. There are many methods for absorbing hydrogen sulfide gas at home and abroad, mainly divided into two categories: dry method and wet method. At present, most of the existing devices and methods for pr...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/52B01D53/02B01D53/73C01B17/05
CPCB01D53/02B01D53/52B01D53/73B01D53/78C01B17/05B01D2258/02
Inventor 韩信宋迎来齐文章岳恒宇周闯杨玲王福斌孙聪齐放
Owner PANJIN DAOBOER PETROLEUM NEW TECH DEV
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