Method of shutting down a reaction system
US7276149B2 · kind B2 · utility
3Cited by
7References
100Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Feb 14, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to methods of shutting down reaction systems. The reaction systems are those that use catalysts that comprise molecular sieves, particularly metalloaluminophosphate molecular sieves, especially metalloaluminophosphate molecular sieves which are susceptible to loss of catalytic activity due to contact with water molecules. The methods provide appropriate mechanisms of stopping feed to the reactor and unloading catalyst to protect against loss of catalytic activity that can occur due to contact with water molecules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.