Patent ID: 9670115
Date: 2017-06-06
CPC Classifications: B01J,C07C,C10G,Y02P

Claim:
1. A method for the purification of an ethylene-containing gas stream which contains acetylenes, dienes, oxygen, and nitric oxide, the method comprising at least the steps of: a. contacting said ethylene-containing gas stream with a supported silver catalyst having a silver content of between about 0.5 and 10% by mass to produce a first processed ethylene-containing gas stream; and b. contacting said first processed ethylene-containing gas stream with a supported ruthenium catalyst having a ruthenium content of between about 0.01 and 5% by mass to produce a second processed ethylene-containing gas stream containing less than about 1 ppm acetylene, less than about 1 ppm NO