Treatment of OTSG blowdown
US11719082B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Nov 18, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Mar 5, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2001/007
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and system generate steam for SAGD operation wherein steam generator blowdown water is acidified, cooled and clarified before reuse. Acid Clarification Treatment, or “ACT”, mitigates organic fouling in Once-Through Stream Generators. Lab tests quantitatively and qualitatively show that ACT reduces Total organic carbon (TOC) and ‘bad actors’ TOC, respectively, in blowdown streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.