Chemical reactor network modeling of a microwave plasma thermal decomposition of H2S into hydrogen and sulfur

Sassi, Mohamed; Amira, Naji

doi:10.1016/j.ijhydene.2012.04.006

Cited by 35 publications

(9 citation statements)

References 18 publications

(14 reference statements)

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“…14 for example, found a complete H 2 S dissociation via a RF plasma with an energy consumption of 2 kWh/m 3 (n). 1,18 Microwave (MW) plasmas can produce similar rates even at 0.8 kWh/m 3 (n), 19 which is mainly driven by a thermal decomposition of the H 2 S. 20 In gliding arc plasmas used for H 2 S abatement, 21 reactions of the following type have been found: 1…”

Section: Introductionmentioning

confidence: 99%

Efficient new process for the desulfurization of mixtures of air and hydrogen sulfide via a dielectric barrier discharge plasma

Dahle

2015

AIP Advances

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The efficient removal of hydrogen sulfide, H2S, from streams of H2S in air via a dielectric barrier discharge (DBD) plasma has been investigated using a quadrupole mass spectrometer. A suitable plasma device with a reservoir for storing sorbent powder of various kinds within the plasma region was constructed. Plasma treatments of gas streams with high concentrations of hydrogen sulfide in air yielded a removal of more than 98% of the initial hydrogen sulfide and a deposition of sulfur at the surface of the dielectric, while small amounts of sulfur dioxide were generated. The presence of calcium carbonate within the plasma region of the DBD device resulted in the removal of over 99% of the initial hydrogen sulfide content and the removal of 98% of the initial sulfur dioxide impurities from the gas mixture.

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Section: Introductionmentioning

confidence: 99%

Efficient new process for the desulfurization of mixtures of air and hydrogen sulfide via a dielectric barrier discharge plasma

Dahle

2015

AIP Advances

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“…H 2 S, a common contaminant of natural gas also deriving from sewage treatments and solid waste disposal facilities [58], can be used as source of hydrogen and different processes are available for its conversion. The most widespread technology for H 2 S removal is the commercial Claus process which, however, leads to H 2 O formation (instead of H 2 ) and is not capable to reach complete conversion.…”

Section: Catalytic H 2 S Removal Via Ntp Technologymentioning

confidence: 99%

A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes

et al. 2020

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Plasma science has attracted the interest of researchers in various disciplines since the 1990s. This continuously evolving field has spawned investigations into several applications, including industrial sterilization, pollution control, polymer science, food safety and biomedicine. nonthermal plasma (NTP) can promote the occurrence of chemical reactions in a lower operating temperature range, condition in which, in a conventional process, a catalyst is generally not active. The aim, when using NTP, is to selectively transfer electrical energy to the electrons, generating free radicals through collisions and promoting the desired chemical changes without spending energy in heating the system. Therefore, NTP can be used in various fields, such as NOx removal from exhaust gases, soot removal from diesel engine exhaust, volatile organic compound (VOC) decomposition, industrial applications, such as ammonia production or methanation reaction (Sabatier reaction). The combination of NTP technology with catalysts is a promising option to improve selectivity and efficiency in some chemical processes. In this review, recent advances in selected nonthermal plasma assisted solid–gas processes are introduced, and the attention was mainly focused on the use of the dielectric barrier discharge (DBD) reactors.

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“…NTP includes dielectric barrier, 12 rotating glow, 13 DC corona, 14 gliding arc, 15 and microwave plasmas. 16 In the studies conducted on the first three plasmas, the energy costs are high. Gliding arc and microwave plasmas are more effective with high energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Rotten Eggs Revaluated: Ionic Liquids and Deep Eutectic Solvents for Removal and Utilization of Hydrogen Sulfide

Laaksonen

Zhang

et al. 2022

Ind. Eng. Chem. Res.

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Hydrogen sulfide (H2S) is highly toxic and one of the problematic impurities in industrial gas streams, calling for H2S removal down to single-digit ppm levels to protect health and environment, and not to harm to the downstream processes. Here, we discuss the recent developments and challenges of current H2S removal technologies. Furthermore, we present a comprehensive review of H2S removal in ionic liquids (ILs), IL-based solvents/adsorbents/membranes, and deep eutectic solvents (DESs) due to their unique advantages. We analyze theoretical studies to better understand the microscopic details behind H2S removal. We discuss new research on IL/DES-based H2S removal processes from an industrial perspective. Finally, we summarize the utilization of H2S in IL/DES-based systems for the recovery of sulfur and hydrogen, and synthesis of value-added chemicals. This review will provide both general and in-depth knowledge of the achievements, difficulties, and research priorities in developing novel ILs/DESs for efficient and sustainable H2S removal and utilization.

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Chemical reactor network modeling of a microwave plasma thermal decomposition of H2S into hydrogen and sulfur

Cited by 35 publications

References 18 publications

Efficient new process for the desulfurization of mixtures of air and hydrogen sulfide via a dielectric barrier discharge plasma

Efficient new process for the desulfurization of mixtures of air and hydrogen sulfide via a dielectric barrier discharge plasma

A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes

Rotten Eggs Revaluated: Ionic Liquids and Deep Eutectic Solvents for Removal and Utilization of Hydrogen Sulfide

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