Optimization of petroleum crude oil treatment using hydrogen sulfide scavenger

Elmawgoud, H.A.; El-Shiekh, T. M.; Abdelkreem, Maha; Khalil, Salah A.; Al‐Sabagh, A. M.

doi:10.1016/j.ejpe.2019.02.001

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…High S 2− concentrations can inhibit the growth of microorganisms [ 8 ]. Moreover, H 2 S is produced at all stages of oil production, and H 2 S can be hazardous to workers’ health [ 52 ]; the rapid conversion properties of sulfur convertase may be suitable for this. In this study, the enzyme maintained stable sulfur conversion activity and also remediated wastewater, which laid the foundation for future practical application of enzymes in the environment.…”

Section: Resultsmentioning

confidence: 99%

Extraction, Purification, Characterization and Application in Livestock Wastewater of S Sulfur Convertase

Zhai

Duan

et al. 2022

IJERPH

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Sulfide is a toxic pollutant in the farming environment. Microbial removal of sulfide always faces various biochemical challenges, and the application of enzymes for agricultural environmental remediation has promising prospects. In this study, a strain of Cellulosimicrobium sp. was isolated: numbered strain L1. Strain L1 can transform S2−, extracellular enzymes play a major role in this process. Next, the extracellular enzyme was purified, and the molecular weight of the purified sulfur convertase was about 70 kDa. The sulfur convertase is an oxidase with thermal and storage stability, and the inhibitor and organic solvent have little effect on its activity. In livestock wastewater, the sulfur convertase can completely remove S2−. In summary, this study developed a sulfur convertase and provides a basis for the application in environmental remediation.

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Section: Resultsmentioning

confidence: 99%

Extraction, Purification, Characterization and Application in Livestock Wastewater of S Sulfur Convertase

Zhai

Duan

et al. 2022

IJERPH

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“…[2] This gas may rise to the surface through hydrocarbon production and geothermal loops in varying concentrations, ranging from 0.01 up to 30 wt%; the latter is observed globally in excessively sour reservoirs. [3,4] The inherent reactivity, flammability, and toxicity of H 2 S present various technical and sustainability challenges. The gas may corrode completions, pipelines, GOSP, and tanks, thus compromising the integrity and safety of assets.…”

Section: Introductionmentioning

confidence: 99%

Solar Fuel Production from Hydrogen Sulfide: An Upstream Energy Perspective

Ferree

Koščo

Laquai

et al. 2023

Adv Energy and Sustain Res

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Hydrogen sulfide is readily available in vast quantities in the subsurface as a byproduct of industrial processes. Hydrogen evolution from H2S can transform this highly toxic gas into a source of green fuel. Compared to water splitting, H2S dissociation is thermodynamically more favorable. However, feasible industrial‐scale catalytic technologies are not developed yet. The recovery of valuable chemicals using carbon‐neutral photocatalytic processes can capitalize on abundant solar irradiation and advanced semiconductors. The challenge is developing photocatalysts that can efficiently operate over the long term in the harsh environment of subsurface and industry, while utilizing as much of the light source spectrum as possible and providing optimum adsorption/desorption abilities of hydrogen and sulfur‐containing intermediates. Meeting these requirements demands improved kinematic models of photocatalytic H2S decomposition to assess the effect of high temperatures, pressures, mixtures of hydrocarbons, produced water, and other contaminants. Metal sulfides‐based catalysts may be the key to H2S decomposition in the subsurface (e.g., oil and gas reservoirs) and wellbores, but first they need to be upscaled as bulk, robust, and recyclable materials. This review presents a guide for the development of the upstream energy production technology via photocatalytic H2S conversion.

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“…Typically, lean-H 2 S gas is characteristic of tail gas treating (<5 wt% H 2 S), crude petroleum (0.3-0.8 wt% H 2 S), and natural gas streams (0.03-0.3 wt% H 2 S), although in this last case the H 2 S can also reach 30 wt% [6].…”

Section: Introductionmentioning

confidence: 99%

Selective Catalytic Oxidation of Lean-H2S Gas Stream to Elemental Sulfur at Lower Temperature

2021

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Ceria-supported vanadium catalysts were studied for H2S removal via partial and selective oxidation reactions at low temperature. The catalysts were characterized by N2 adsorption at 77 K, Raman spectroscopy, X-ray diffraction techniques, and X-ray fluorescence analysis. X-ray diffraction and Raman analysis showed a good dispersion of the V-species on the support. A preliminary screening of these samples was performed at fixed temperature (T = 327 °C) and H2S inlet concentration (10 vol%) in order to study the catalytic performance in terms of H2S conversion and SO2 selectivity. For the catalyst that exhibited the higher removal efficiency of H2S (92%) together with a lower SO2 selectivity (4%), the influence of temperature (307–370 °C), contact time (0.6–1 s), and H2S inlet concentration (6–15 vol%) was investigated.

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Optimization of petroleum crude oil treatment using hydrogen sulfide scavenger

Cited by 5 publications

References 4 publications

Extraction, Purification, Characterization and Application in Livestock Wastewater of S Sulfur Convertase

Extraction, Purification, Characterization and Application in Livestock Wastewater of S Sulfur Convertase

Solar Fuel Production from Hydrogen Sulfide: An Upstream Energy Perspective

Selective Catalytic Oxidation of Lean-H2S Gas Stream to Elemental Sulfur at Lower Temperature

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