| 摘要 |
A coke-deactivated noble metal-containing catalyst is sulfided with a sulfiding agent, e.g., H2S in H2, then coke is burned from the sulfided catalyst by contacting the catalyst with oxygen, optionally in the presence of sulfur dioxide, and then the catalyst is reduced with a reducing agent, e.g., H2. The process permits burning off coke while avoiding excessive agglomeration of the noble metals on the catalyst.
|
