Catalytic properties of activated carbons I. Gas-phase oxidation of hydrogen sulphide

S. V. Mikhalovsky; Yu P. Zaitsev

doi:10.1016/S0008-6223(97)00104-8

Catalytic properties of activated carbons I. Gas-phase oxidation of hydrogen sulphide

S. V. Mikhalovsky, Yu P. Zaitsev

School of Engineering and Digital Sciences

Research output: Contribution to journal › Article › peer-review

84 Citations (Scopus)

Abstract

Gas-phase oxidation of hydrogen sulphide catalysed by the activated carbons of different origin and formation of SO_x in this process was studied. Using XPS, it was shown that H₂S adsorption from an inert atmosphere on activated carbons resulted in the formation of surface oxygen-containing complexes and elemental sulphur. It is suggested that carbon surface functional groups contribute significantly to the formation of SO_x in H₂S oxidation. Impregnation of the carbons with transition metals alters their catalytic activity and selectivity towards sulphur oxides and elemental sulphur. Varying the method of impregnation it is possible to synthesise materials with very different catalytic properties. A vanadium-grafted catalyst with high selectivity towards elemental sulphur was synthesised. It effectively works at the temperature exceeding the melting point of sulphur enabling to obtain high yield of elemental sulphur.

Original language	English
Pages (from-to)	1367-1374
Number of pages	8
Journal	Carbon
Volume	35
Issue number	9
DOIs	https://doi.org/10.1016/S0008-6223(97)00104-8
Publication status	Published - 1997

Keywords

A. Activated carbon
B. oxidation
D. catalytic properties

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

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title = "Catalytic properties of activated carbons I. Gas-phase oxidation of hydrogen sulphide",

abstract = "Gas-phase oxidation of hydrogen sulphide catalysed by the activated carbons of different origin and formation of SOx in this process was studied. Using XPS, it was shown that H2S adsorption from an inert atmosphere on activated carbons resulted in the formation of surface oxygen-containing complexes and elemental sulphur. It is suggested that carbon surface functional groups contribute significantly to the formation of SOx in H2S oxidation. Impregnation of the carbons with transition metals alters their catalytic activity and selectivity towards sulphur oxides and elemental sulphur. Varying the method of impregnation it is possible to synthesise materials with very different catalytic properties. A vanadium-grafted catalyst with high selectivity towards elemental sulphur was synthesised. It effectively works at the temperature exceeding the melting point of sulphur enabling to obtain high yield of elemental sulphur.",

keywords = "A. Activated carbon, B. oxidation, D. catalytic properties",

author = "Mikhalovsky, {S. V.} and Zaitsev, {Yu P.}",

note = "Funding Information: Acknowledgements~This work was largely supported by a grant from INTAS (94-3608). The authors thank Dr I. V. Bacherikova for XPS measurements. The participation of S. Penkalo and L. Kuznetsova in the catalytic experiments is also appreciated. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "1997",

doi = "10.1016/S0008-6223(97)00104-8",

language = "English",

volume = "35",

pages = "1367--1374",

journal = "Carbon",

issn = "0008-6223",

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T1 - Catalytic properties of activated carbons I. Gas-phase oxidation of hydrogen sulphide

AU - Mikhalovsky, S. V.

AU - Zaitsev, Yu P.

N1 - Funding Information: Acknowledgements~This work was largely supported by a grant from INTAS (94-3608). The authors thank Dr I. V. Bacherikova for XPS measurements. The participation of S. Penkalo and L. Kuznetsova in the catalytic experiments is also appreciated. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 1997

Y1 - 1997

N2 - Gas-phase oxidation of hydrogen sulphide catalysed by the activated carbons of different origin and formation of SOx in this process was studied. Using XPS, it was shown that H2S adsorption from an inert atmosphere on activated carbons resulted in the formation of surface oxygen-containing complexes and elemental sulphur. It is suggested that carbon surface functional groups contribute significantly to the formation of SOx in H2S oxidation. Impregnation of the carbons with transition metals alters their catalytic activity and selectivity towards sulphur oxides and elemental sulphur. Varying the method of impregnation it is possible to synthesise materials with very different catalytic properties. A vanadium-grafted catalyst with high selectivity towards elemental sulphur was synthesised. It effectively works at the temperature exceeding the melting point of sulphur enabling to obtain high yield of elemental sulphur.

AB - Gas-phase oxidation of hydrogen sulphide catalysed by the activated carbons of different origin and formation of SOx in this process was studied. Using XPS, it was shown that H2S adsorption from an inert atmosphere on activated carbons resulted in the formation of surface oxygen-containing complexes and elemental sulphur. It is suggested that carbon surface functional groups contribute significantly to the formation of SOx in H2S oxidation. Impregnation of the carbons with transition metals alters their catalytic activity and selectivity towards sulphur oxides and elemental sulphur. Varying the method of impregnation it is possible to synthesise materials with very different catalytic properties. A vanadium-grafted catalyst with high selectivity towards elemental sulphur was synthesised. It effectively works at the temperature exceeding the melting point of sulphur enabling to obtain high yield of elemental sulphur.

KW - A. Activated carbon

KW - B. oxidation

KW - D. catalytic properties

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U2 - 10.1016/S0008-6223(97)00104-8

DO - 10.1016/S0008-6223(97)00104-8

M3 - Article

AN - SCOPUS:0000916997

VL - 35

SP - 1367

EP - 1374

JO - Carbon

JF - Carbon

SN - 0008-6223

IS - 9

ER -

Catalytic properties of activated carbons I. Gas-phase oxidation of hydrogen sulphide

Abstract

Keywords

ASJC Scopus subject areas

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