Selective absorption of H2S from a gas mixture with CO2 in a microporous tube-in-tube microchannel reactor

Pan, Mei-Yuan; Li, Ting; Zhou, Yunshan; Qian, Zhi; Shao, Lei; Wang, Jie‐Xin; Chen, Jianfeng

doi:10.1016/j.cep.2015.06.008

Cited by 22 publications

(4 citation statements)

References 29 publications

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“…While oilfields contain combinations of H 2 S and CO 2 , it is most important to remove H 2 S from gas and oil streams. Selectivity for H 2 S over CO 2 is crucial for economic considerations as well as equipment design for optimum contact between scavenger and oil/gas-fluid [11].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of H₂S Scavenger Technologies from Oil and Gas Streams

2017

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Sour crudes containing > 0.5 % sulfur are of low quality and cause harm to equipment, the environment, and to humans. Therefore, sustainable measures for crude oil sweetening are of significant importance. Removal of H2S directly at the wellhead before the transport increases the value of crude oil and may be necessary to adhere to legal transport laws. Chemical agents known as scavengers are used to scrub H2S from crude oils. Scavengers are either of the regenerative or non‐regenerative type and are used depending on the pH or water content of the crude stream. The literature has been surveyed to reveal those absorbents that allow the most effective scavenging of H2S at wellhead applications. The chemical processing, including recovery of scavenger or end use of products, is discussed for decision‐making at the confluence of chemistry and chemical engineering for H2S removal. This work investigates how and why some scavengers perform better for some crudes and environmental conditions than others with the intent to develop designer scavengers and processing conditions for the crude oil industry.

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Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of H₂S Scavenger Technologies from Oil and Gas Streams

2017

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“…This equation is solved by Bruus, H. [18] and the approximate result of the pressure drop in rectangular cross-section channel is shown in equation 2. 20.…”

Section: Pressure Drop In Microchannelmentioning

confidence: 99%

“…Microporous in microchannel can generate small bubble which can increase removal efficiency. M. Pan et al (2015) studied absorption of hydrogen sulfide from a gas mixture in a microporous tube-in-tube microchannel reactor. The microporous tube was allowed gas inlet to flow radially through the micropores into the annular channel which had liquid solvent.…”

Section: Literature Reviewsmentioning

confidence: 99%

“…The microporous tube was allowed gas inlet to flow radially through the micropores into the annular channel which had liquid solvent. They found that the hydrogen sulfide removal efficiency up to 99.85% and the hydrogen sulfide removal efficiency increased with decreasing size of micropore because small micropore formed small gas bubble which led to high interfacial area [20].…”

Section: Literature Reviewsmentioning

confidence: 99%

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Use of metal mesh to increase absorption efficiency of volatile organic compound in microchannel

Prasomsup

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Volatile organic compounds (VOCs) emissions can cause environmental problems and public health. Absorption is an effective method to reduce VOCs emission because it provides high capacity and low operating costs. In this work, microchannel was applied to increase mass transfer and interfacial area between the gas and liquid solvent. Moreover, a stainless steel mesh was used to prevent dispersion of one phase into the other. The stainless steel mesh was placed between two channels gas- and liquid-sides of the channel. The stainless steel mesh size was varied by using stainless steel mesh number 100, 200, and 300. Toluene was used as a representative of VOC and vegetable oil was used as a liquid solvent. The result of this work was found that the gas to liquid solvent flow rate ratio was a factor to control separation of gas and the liquid solvent. Moreover, size and surface property of stainless steel mesh played a crucial role in keeping gas and the liquid solvent separated. In addition, the removal efficiency of toluene depended on the influence of gas flow rate, liquid flow rate, channel length, channel thickness, mesh size and inlet gas concentration. Moreover, the removal efficiency of toluene was up to 97 % in this work. Finally, the liquid-side volumetric mass transfer coefficients in this work were calculated and found to be as high as 0.00165 s-1.

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Gas Absorption and Mass Transfer in a Pore-Array Intensified Tube-in-Tube Microchannel

Xia

Guo

et al. 2020

Trans. Tianjin Univ.

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Selective absorption of H2S from a gas mixture with CO2 in a microporous tube-in-tube microchannel reactor

Cited by 22 publications

References 29 publications

A Comprehensive Review of H₂S Scavenger Technologies from Oil and Gas Streams

A Comprehensive Review of H₂S Scavenger Technologies from Oil and Gas Streams

Use of metal mesh to increase absorption efficiency of volatile organic compound in microchannel

Gas Absorption and Mass Transfer in a Pore-Array Intensified Tube-in-Tube Microchannel

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Selective absorption of H2S from a gas mixture with CO2 in a microporous tube-in-tube microchannel reactor

Cited by 22 publications

References 29 publications

A Comprehensive Review of H2S Scavenger Technologies from Oil and Gas Streams

A Comprehensive Review of H2S Scavenger Technologies from Oil and Gas Streams

Use of metal mesh to increase absorption efficiency of volatile organic compound in microchannel

Gas Absorption and Mass Transfer in a Pore-Array Intensified Tube-in-Tube Microchannel

Contact Info

Product

Resources

About

A Comprehensive Review of H₂S Scavenger Technologies from Oil and Gas Streams

A Comprehensive Review of H₂S Scavenger Technologies from Oil and Gas Streams