Steam cracking of hydrocarbons in the presence of thiohydrocarbons
US6022472A · kind A · utility
1Cited by
2References
4Claims
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Key dates
| Filing date | Nov 22, 1996 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | Nov 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/95
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Sulphur-containing hydrocarbon feedstocks are desulphurized prior to being subjected to steam cracking in the presence of one or more thiohydrocarbons wherein the sulphur is part of aromatic heterocycles, preferably thiophene and/or benzothiophene. Optimum results are obtained in terms of the combination of reduced coking rate and reduced carbon monoxide formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.