In situ generation of polysulfide ions using elemental sulfur for improved corrosion control, cyanide management, mercury management, arsine management and performance and reliability of acid gas removal equipment
US8668887B2 · kind B2 · utility
5Cited by
17References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 7, 2012 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/602
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and systems are provided for the in situ generation of polysulfide ions in a process stream including S2− and/or HS− ions. Methods and systems are also provided to ameliorate corrosion in a process stream containing an acid gas or a scrubbing agent solvent, and abate mercury and cyanide in process streams containing a scrubbing agent solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.