Hydrogen sulfide (H2S) conversion to hydrogen (H2) and value-added chemicals: Progress, challenges and outlook

Advances in Resources Recovery of H2S: A Review of Desulfurization Processes and Catalysts

“…Meanwhile, the apparent activation energy (Ea) of H 2 S splitting is 495.62 kJ/mol, which is kinetically sluggish. Therefore, several processes have been proposed for H 2 S splitting, including microwave, photochemical, plasma, and electrochemical splitting methods …”

“…Therefore, several processes have been proposed for H 2 S splitting, including microwave, photochemical, plasma, and electrochemical splitting methods. 26 In addition to H 2 S, the tail gases from coal gasification and natural gas processing also include the acid gas CO 2 . For instance, some natural gas fields in China or the Middle East contain 13−18% H 2 S and 8−10% CO 2 .…”

On the Effect of the Reaction Medium on the HydroClaus Process: A Novel Sustainable H2S Valorization Strategy

“…Because of the increasing sulfur content in natural gas, − the key player fuel of the energy transition era, and the stricter environmental regulations, managing the rising H 2 S level is becoming a challenge. For this reason, research efforts are devoted to developing novel H 2 S utilization , and valorization technologies as an alternative to the conventional treatments. , These technologies are highly attractive because they allow the simultaneous H 2 S abatement and the production of high value-added chemicals. When H 2 S is converted, two different kinds of products can be obtained: H 2 -based and sulfur-based.…”

Nafion-Mediated Proton Transfer Facilitates the Electroreduction of SO2 to H2S

“…10 Moreover, H 2 S is an excellent hydrogen storage medium, because the decomposition of H 2 S yields clean hydrogen (H 2 ) while generating high-purity elemental sulfur, which has received considerable attention. 11,12 There-fore, the conversion of sulfur dioxide into hydrogen sulfide offers a convenient and cost-effective method to obtain H 2 S for these applications. Moreover, this process establishes a closed loop within the complete life cycle of elemental sulfur, thereby constructing a comprehensive sulfur recycling system to benefit sulfur-related industries.…”

“…Hydrogen sulfide (H 2 S), as an important raw material and intermediate, has a wide array of applications, including the production of elemental sulfur, , its roles as the reducing agent in organic synthesis, , catalytic involvement in sulfide regeneration, as well as extraction of metal, the treatment of heavy metal-containing wastewater, , and the utilization in semiconductor material production . Moreover, H 2 S is an excellent hydrogen storage medium, because the decomposition of H 2 S yields clean hydrogen (H 2 ) while generating high-purity elemental sulfur, which has received considerable attention. , Therefore, the conversion of sulfur dioxide into hydrogen sulfide offers a convenient and cost-effective method to obtain H 2 S for these applications. Moreover, this process establishes a closed loop within the complete life cycle of elemental sulfur, thereby constructing a comprehensive sulfur recycling system to benefit sulfur-related industries.…”