Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts
The partial oxidation of methane to methanol and formaldehyde by reaction with air has been investigated at elevated pressures and temperatures both in the presence and in the absence of oxide catalysts. The results show that the maximum reproducible yield of formaldehyde obtained with oxide catalys...
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Format: | Journal article |
Language: | English |
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1991
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author | Baldwin, T Burch, R Squire, G Tsang, S |
author_facet | Baldwin, T Burch, R Squire, G Tsang, S |
author_sort | Baldwin, T |
collection | OXFORD |
description | The partial oxidation of methane to methanol and formaldehyde by reaction with air has been investigated at elevated pressures and temperatures both in the presence and in the absence of oxide catalysts. The results show that the maximum reproducible yield of formaldehyde obtained with oxide catalysts is around 2-3%. In the absence of any catalyst, it has been observed that yields up to 3.46% may be obtained at a pressure of 5 bar, using a methane/air ratio of 1: 5 at 625°C. It is concluded that there is an important gas phase contribution which needs to be taken into account when examining the catalytic oxidation of methane at moderate pressures. Reasons for the low yield of formaldehyde generally observed with catalysts are discussed, and the problems associated with the facile nature of gas phase radical reactions are considered. © 1991. |
first_indexed | 2024-03-07T03:34:46Z |
format | Journal article |
id | oxford-uuid:bbe7b7cb-c14a-40a7-873f-219b3da4659f |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T03:34:46Z |
publishDate | 1991 |
record_format | dspace |
spelling | oxford-uuid:bbe7b7cb-c14a-40a7-873f-219b3da4659f2022-03-27T05:20:32ZInfluence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalystsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bbe7b7cb-c14a-40a7-873f-219b3da4659fEnglishSymplectic Elements at Oxford1991Baldwin, TBurch, RSquire, GTsang, SThe partial oxidation of methane to methanol and formaldehyde by reaction with air has been investigated at elevated pressures and temperatures both in the presence and in the absence of oxide catalysts. The results show that the maximum reproducible yield of formaldehyde obtained with oxide catalysts is around 2-3%. In the absence of any catalyst, it has been observed that yields up to 3.46% may be obtained at a pressure of 5 bar, using a methane/air ratio of 1: 5 at 625°C. It is concluded that there is an important gas phase contribution which needs to be taken into account when examining the catalytic oxidation of methane at moderate pressures. Reasons for the low yield of formaldehyde generally observed with catalysts are discussed, and the problems associated with the facile nature of gas phase radical reactions are considered. © 1991. |
spellingShingle | Baldwin, T Burch, R Squire, G Tsang, S Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
title | Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
title_full | Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
title_fullStr | Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
title_full_unstemmed | Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
title_short | Influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
title_sort | influence of homogeneous gas phase reactions in the partial oxidation of methane to methanol and formaldehyde in the presence of oxide catalysts |
work_keys_str_mv | AT baldwint influenceofhomogeneousgasphasereactionsinthepartialoxidationofmethanetomethanolandformaldehydeinthepresenceofoxidecatalysts AT burchr influenceofhomogeneousgasphasereactionsinthepartialoxidationofmethanetomethanolandformaldehydeinthepresenceofoxidecatalysts AT squireg influenceofhomogeneousgasphasereactionsinthepartialoxidationofmethanetomethanolandformaldehydeinthepresenceofoxidecatalysts AT tsangs influenceofhomogeneousgasphasereactionsinthepartialoxidationofmethanetomethanolandformaldehydeinthepresenceofoxidecatalysts |