Hydrothermal pretreatment for increasing average pore size in a catalyst support
US6958309B2 · kind B2 · utility
12Cited by
24References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2002 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Jul 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pretreatment method for increasing the average pore size of a catalyst support is disclosed which increases the diffusivity and effectiveness factor η. The pretreatment method includes calcining the support in moisturized air at an elevated temperature sufficient to increase the average pore size. In some embodiments, the support may be treated with an acidic/basic solution prior to the calcination step. Alternatively, the calcination step may occur in a gas mixture including water/air/acidic (or basic) gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.