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US 11,390,522 B2Granted
Process for conversion of sulfur trioxide and hydrogen production
AssigneesIndian Institute of Technology Delhi, ONGC Energy Centre
InventorsSreedevi Upadhyayula, Ashok Niwritti Bhaskarwar, Kishore Kondamudi, Parvatalu Damaraju, Bharat Bhargava, Satinath Banerjee
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Abstract
A process for decomposition of sulfuric acid, particularly a process for catalytically decomposing sulfuric acid is used to obtain sulfur dioxide therefrom. Catalysts are used for improving the dissociation efficiency by lowering the activation energy barrier for the reaction.
Claims25
A process for conversion of sulphur trioxide to sulphur dioxide and oxygen comprising, the process comprising;
- placing a catalyst composition in a reactor, wherein the catalyst composition comprises an active material selected from the group consisting of transitional metal oxide, mixed transitional metal oxide, and combinations thereof;
- and a support material wherein the support material is crystallized porous β-SiC, wherein the active material to the support material weight ratio is in the range of 0.1 to 25 wt %;
- passing a flow of sulphur trioxide in the presence of an optionally used carrier gas over the catalyst composition at a temperature of 700° C.-900° C.;
- and
- recovering stream comprising of sulphur trioxide, sulphur dioxide, oxygen, water, and the optionally used carrier gas.
2 more elements
Dependencies are inferred from the claim text.