High pressure revamp of low pressure distillate hydrotreating process units
US8424181B2 · kind B2 · utility
8Cited by
10References
8Claims
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Key dates
| Filing date | Apr 15, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Mar 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cost effective method for revamping a low pressure distillate hydrotreating process unit to a high pressure distillate hydrotreating process unit. A high pressure hot-feed pump is added, the furnace is retubed for higher pressures, the low pressure reactor is replaced with a high pressure reactor, a high pressure let-down valve is added at the reactor outlet, and the low pressure recycle compressor is replaced with a high pressure recycle compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.