Adsorption-based Claus tail gas treatment through regeneration temperature ramping
US11572274B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Feb 3, 2021 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Aug 15, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/414
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and method for sulfur recovery, including hydrogenating Claus tail gas, quenching the hydrogenated gas, adsorbing water and hydrogen sulfide from the quenched gas, and regenerating adsorbent with carbon dioxide and/or nitrogen and heating the adsorbent in a regeneration temperature ramp to desorb primarily hydrogen sulfide in a first part of the temperature ramp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.