Catalytic Oxidation of Methyl Mercaptan over Cobalt Molybdate

Ross, Robert A.; Sood, Surrinder P.

doi:10.1021/i360062a007

Cited by 24 publications

(20 citation statements)

References 7 publications

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“…O 2 concentration has a positive effect on the conversion of C 8 H 8 . This is consistent with Ross and Sood, 5 Chu and Horng, 15 several mechanisms for a best fit to the data obtained in the kinetic experiments based on the values of the correlation coefficient. The results show that the following rate expression gives the best fit:…”

Section: Resultssupporting

confidence: 90%

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

Tseng

Chu

2002

Journal of the Air & Waste Management Association

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In this study, styrene monomer (SM) was treated by a commercial catalyst, Mn 2 O 3 /Fe 2 O 3 , in a fixed-bed reactor. The study can be classified into two major parts. First, the effects of operating factors, such as temperature, SM concentration, space velocity, and O 2 concentration, on the performance of the catalyst were investigated. Second, two catalyst life tests were carried out to characterize the deactivation effect of SM.The results show that the catalyst results in higher conversion of SM at a higher inlet temperature and higher O 2 concentrations. The conversion of SM decreases with increasing SM concentration and space velocity. From the statistical analysis of the data, we find that temperature is the most important factor on the catalytic incineration. Oxygen concentration, SM concentration, and space velocity are significant parameters as well. This paper also provides information on the deactivation effect of SM. The catalysts were characterized by surface and pore-size analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron spectroscopy for chemical analysis (ESCA) before and after the tests. The results show that the catalytic deactivation may be caused by carbon coating, and the pore size and surface area of the catalyst are smaller after deactivation.

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Section: Resultssupporting

confidence: 90%

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

Tseng

Chu

2002

Journal of the Air & Waste Management Association

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“…Further increase in reaction temperature led to little decline in conversion due to the sulfur poisoning during the oxidation of DMS over catalyst [53,54]. Several researchers have also been reported that the adsorption and activation of the O 2 molecules over the catalyst surface require higher temperatures for catalytic incineration of methanethiol and DMS as described by the Langmuir-Hinshelwood model [4,55]. The oxidation of DMS with ozone is carried out in the absence of a catalyst also.…”

Section: Effect Of Temperature On Dms Oxidationmentioning

confidence: 99%

Catalytic activity of Fe/ZrO2 nanoparticles for dimethyl sulfide oxidation

Soni

Shekar

Singh

et al. 2015

Journal of Colloid and Interface Science

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“…by Ross and Sood [138], Dalai et al [139], Chu and Horng [140] and more recently by Kastner et al [141,142] and Ojala [3]. Ross and Sood [138] studied MM oxidation (1000 ppm) over a cobolt molybdate catalyst at a temperature range of 140-420°C. They did not find significant changes in catalytic activity although the surface area of the catalyst was decreased during the experiments.…”

Section: Svocsmentioning

confidence: 99%

“…Mercaptans, such as methyl mercaptan, DMS and DMDS can be oxidized to formaldehyde with vanadia on titania and silica catalysts [248,249]. Ross and Sood [138] have examined the catalytic oxidation of methyl mercaptan over cobalt molybdate. Sahle-Demessie and Devulapelli [250] have investigated the oxidation of DMS with ozone over a V 2 O 5 /TiO 2 catalyst.…”

Section: Case: Methanol and Methyl Mercaptan Oxidation To Formaldehydementioning

confidence: 99%

Catalysis in VOC Abatement

et al. 2011

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Volatile organic compounds (VOCs) are harmful to environment and human health. Catalytic oxidation has been used in VOC abatement for over 60 years, and it has proven to be an effective technology. A large variety of VOCs set high demands for the treatment, and therefore catalytic oxidation needs still to be developed further. This paper reviews current aspects and future research needs related to VOCs and catalytic VOC treatment concentrating on solvent-based, chlorinated and sulphur-containing VOCs.

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Catalytic Oxidation of Methyl Mercaptan over Cobalt Molybdate

Abstract: activity of the leached catalyst. It was shown that a thermally deactivated catalyst can be completely reactivated by a second aluminum flame-spraying treatment followed by preheating and leaching.Literature Cited

Cited by 24 publications

References 7 publications

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

Catalytic activity of Fe/ZrO2 nanoparticles for dimethyl sulfide oxidation

Catalysis in VOC Abatement

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Catalytic Oxidation of Methyl Mercaptan over Cobalt Molybdate

Abstract: activity of the leached catalyst. It was shown that a thermally deactivated catalyst can be completely reactivated by a second aluminum flame-spraying treatment followed by preheating and leaching.Literature Cited

Cited by 24 publications

References 7 publications

The Catalytic Incineration of Styrene over an Mn2O3/Fe2O3 Catalyst

The Catalytic Incineration of Styrene over an Mn2O3/Fe2O3 Catalyst

Catalytic activity of Fe/ZrO2 nanoparticles for dimethyl sulfide oxidation

Catalysis in VOC Abatement

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The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst