Kinetics of H2S selective oxidation by oxygen at the carbon nanofibrous catalyst

Shinkarev, V. V.; Kuvshinov, G. G.; Zagoruiko, Andrey N.

doi:10.1007/s11144-017-1339-z

Cited by 5 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Shinkarev and co-authors [96] investigated the process kinetics of selective hydrogen sulfide oxidation over CNT. The proposed kinetic model matched well with experimental results across a broad temperature range (155-250 • C) with hydrogen sulfide, oxygen, and water vapor concentrations of 0.5-2 vol.% and 0.25-10 vol.%, and 0-35 vol.%, respectively.…”

Section: Carbon Nanofiber-based Catalystsmentioning

confidence: 99%

Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

et al. 2021

View full text Add to dashboard Cite

This article is devoted to scientific and technical aspects of the direct catalytic oxidation of hydrogen sulfide for the production of elemental sulfur. It includes a detailed description of the Claus process as the main reference technology for hydrogen sulfide processing methods. An overview of modern catalytic systems for direct catalytic oxidation technology and known processes is presented. Descriptions of the scientific results of the Institute of Catalysis of the SB RAS in a study of the physical and chemical foundations of the process and the creation of a catalyst for it are included. The Boreskov Institute of Catalysis SB RAS technologies based on fundamental studies and their pilot and industrial testing results are described.

show abstract

Section: Carbon Nanofiber-based Catalystsmentioning

confidence: 99%

Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Selection of suitable catalyst affects the catalysts performance in terms of sulfur yield, so it imperative synthesize catalysts with high selectivity and conversion. [3,4] Metal oxides, [5][6][7] carbon materials [8,9] and hybrid catalysts [10][11][12][13][14][15][16][17][18][19] have attracted a lot of attention as catalysts for selective oxidation of H 2 S. Moreover, doping with metallic (Nb, Ag, Pt, W, Mn, Fe, V, Mn, Co, Ni and etc. ), non-metallic (C, N, P, F, etc.)…”

Section: Introductionmentioning

confidence: 99%

Doping Transition Metals into TiO₂‐CNT Nanocatalyst to Enhance the Selective Oxidation of H₂S

et al. 2020

View full text Add to dashboard Cite

In this research work, the transition metals (Ni, Co and W) have been doped into the TiO 2-CNT (X-TC) nanocatalysts through sol-gel method. The structure and composition of the synthesized catalysts were determined by various qualitative and quantitative techniques. Their performance was evaluated in selective oxidation of H 2 S to elemental sulfur and compared to those of the undoped TiO 2-CNT (TC). It was found that the all metals which were doped into the TC catalyst showed much better desulfurization performance than the TC. The H 2 S conversion of the catalysts followed the trend of Co5 %-TC > Ni5 %-TC > W5 %-TC ∼ TC and Co10 %-TC > Ni10 %-TC > W10 %-TC ∼ TC and the selectivity was almost higher than 99 % in all catalysts. In this regard, the 5 %Co-TC had the higher H 2 S conversion of 99.5 %, sulfur selectivity of 99.6 % and sulfur yield of 99.1 % which is attributed to the lower band gap and higher specific surface area and pore volume in comparison to the other metal-doped TC catalysts. In addition, the increase in the metal content to 10 wt. % decreased the H 2 S conversion and sulfur selectivity because the metal particles on TC deteriorated the surface area and pore volume of the catalysts. The high catalytic activity of metals doped catalysts can be attributed to doping active transition metals as active site on mesoporous support of TC.

show abstract

Enhanced catalytic activity over MIL-100(Fe) with coordinatively unsaturated Fe2+/Fe3+ sites for selective oxidation of H2S to sulfur

Zheng

Zhang

Fan

et al. 2019

Chemical Engineering Journal

133

View full text Add to dashboard Cite

Kinetics of H2S selective oxidation by oxygen at the carbon nanofibrous catalyst

Cited by 5 publications

References 19 publications

Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

Doping Transition Metals into TiO₂‐CNT Nanocatalyst to Enhance the Selective Oxidation of H₂S

Enhanced catalytic activity over MIL-100(Fe) with coordinatively unsaturated Fe2+/Fe3+ sites for selective oxidation of H2S to sulfur

Contact Info

Product

Resources

About

Kinetics of H2S selective oxidation by oxygen at the carbon nanofibrous catalyst

Cited by 5 publications

References 19 publications

Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

Doping Transition Metals into TiO2‐CNT Nanocatalyst to Enhance the Selective Oxidation of H2S

Enhanced catalytic activity over MIL-100(Fe) with coordinatively unsaturated Fe2+/Fe3+ sites for selective oxidation of H2S to sulfur

Contact Info

Product

Resources

About

Doping Transition Metals into TiO₂‐CNT Nanocatalyst to Enhance the Selective Oxidation of H₂S