TY  - JOUR
N1  - cited By 29
N2  - Hydrogen sulfide (H2S) is a flammable, corrosive and lethal gas even at low concentrations (ppm levels). Hence, the capture and removal of H2S from various emitting sources (such as oil and gas processing facilities, natural emissions, sewage treatment plants, landfills and other industrial plants) is necessary to prevent and mitigate its adverse effects on human (causing respiratory failure and asphyxiation), environment (creating highly flammable and explosive environment), and facilities (resulting in corrosion of industrial equipment and pipelines). In this review, the state-of-the-art technologies for H2S capture and removal are reviewed and discussed. In particular, the recent technologies for H2S removal such as membrane, adsorption, absorption and membrane contactor are extensively reviewed. To date, adsorption using metal oxide-based sorbents is by far the most established technology in commercial scale for the fine removal of H2S, while solvent absorption is also industrially matured for bulk removal of CO2 and H2S simultaneously. In addition, the strengths, limitations, technological gaps and way forward for each technology are also outlined. Furthermore, the comparison of established carbon capture technologies in simultaneous and selective removal of H2Sâ??CO2 is also comprehensively discussed and presented. It was found that the existing carbon capture technologies are not adequate for the selective removal of H2S from CO2 due to their similar characteristics, and thus extensive research is still needed in this area. © 2022 Elsevier Ltd
KW  - Carbon capture; Corrosion prevention; Gas emissions; Gas plants; Hydrogen sulfide; Industrial emissions; Metals; Sewage treatment plants; Sulfur determination
KW  -  Capture; Emitting sources; Feasibility; Gas processing; Low concentrations; Oil and gas; Oil processing; Performance; Selective removal; State-of-the art reviews
KW  -  Carbon dioxide
KW  -  carbon dioxide; hydrogen sulfide; metal oxide; solvent; carbon; carbon dioxide; caustic agent; hydrogen sulfide
KW  -  carbon dioxide; feasibility study; hydrogen sulfide; performance assessment; pollutant removal; separation
KW  -  adsorption; carbon capture; chemical analysis; chemical parameters; controlled study; feasibility study; hazardous waste; heavy metal removal; membrane potential; process technology; Review; human; sewage
KW  -  Carbon; Carbon Dioxide; Caustics; Humans; Hydrogen Sulfide; Sewage; Solvents
ID  - scholars16137
TI  - A state-of-the-art review on capture and separation of hazardous hydrogen sulfide (H2S): Recent advances, challenges and outlook
AV  - none
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85138806858&doi=10.1016%2fj.envpol.2022.120219&partnerID=40&md5=3c33fefe9643fddebb0017644300750d
JF  - Environmental Pollution
A1  - Chan, Y.H.
A1  - Lock, S.S.M.
A1  - Wong, M.K.
A1  - Yiin, C.L.
A1  - Loy, A.C.M.
A1  - Cheah, K.W.
A1  - Chai, S.Y.W.
A1  - Li, C.
A1  - How, B.S.
A1  - Chin, B.L.F.
A1  - Chan, Z.P.
A1  - Lam, S.S.
VL  - 314
Y1  - 2022///
SN  - 02697491
PB  - Elsevier Ltd
ER  -