SELECTIVE HYDROGENATION METHOD

摘要

The present subject matter relates generally to methods for selectively saturating the unsaturated C2-C4. More specifically, the present subject matter relates to methods for saturating butadiene and butenes from a hydrocarbon stream before it is combined with a fresh feed and enters a reaction zone. Removing the unsaturates from the hydrocarbon stream before the hydrocarbon stream enters the reaction zone prevents the reactor internals from coking.

主权项

1. A method for saturating hydrocarbons comprising:
passing a hydrocarbon stream comprising butadiene to a guard bed wherein the hydrocarbon stream is contacted with an adsorbent to form a treated hydrocarbon stream; and passing the treated hydrocarbon stream and a hydrogen stream to a reaction zone containing a hydrogenation catalyst to form a reaction zone effluent stream.