Stacking of low activity or regenerated catalyst above higher activity catalyst
US9303218B2 · kind B2 · utility
1Cited by
17References
16Claims
0Family size
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Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jan 25, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4018
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Processes are provided for using employing lower activity hydrodesulfurization catalysts while achieving a desired product sulfur content. After determining effective reaction conditions for hydrodesulfurization using a reference catalyst system, an upstream portion of the catalyst system can be replaced with a lower activity upstream portion. The process allows tailored product sulfur levels to be achieved using reaction conditions similar to those for the reference catalyst system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.