Selective hydrogenation of dienes

摘要

A process is provided for the selective hydrogenation of dienes from a mixed hydrocarbon stream. The catalyst contains nickel in an amount between approximately 5 and 15 weight percent and, alternatively, may contain nickel oxide and molybdenum oxide in an amount between approximately 3 to 6 and 12 to 25 weight percent, respectively. The catalyst metals are on an aluminum oxide support. The process does not require any activation or pre-treatment of the catalyst. No sulfur is added to the reaction zone and the catalyst is not adversely affected by the presence of up to 0.20% by weight of sulfur in the feed stream. According to the process, conjugated dienes are reduced by at least 80 to 90%.