| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 227284 | Journal of Industrial and Engineering Chemistry | 2016 | 8 Pages |
Hydrogen sulphide (H2S) removal and its efficient utilization is a big challenge for many petroleum refinery industries now-a-days. The present investigation involves absorption of H2S in aqueous methyldiethanolamine (MDEA) followed by sulphidation of benzyl chloride (BC) by H2S-rich MDEA to yield dibenzyl sulphide (DBS) selectively using tetrabutylphosphonium bromide (TBPB) as a phase transfer catalyst. Ninety per cent selectivity of DBS was obtained at some level of process condition. A suitable mechanism has been proposed. An empirical kinetic model was also developed and correlated with experimental data. The present work has a potential to be used as an alternative to Claus process.
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