Adsorbent processing to reduce hydrocarbon basestock foaming.

摘要

A method for decreasing the foaming tendency of hydrocarbons, particularly lube basestocks, comprises passing the hydrocarbon through an adsorption zone (30) having as adsorbent (32), preferably a basic adsorbent. In a preferred embodiment, the method comprises passing the hydrocarbon feedstock through a regenerable multi-bed adsorption zone. The foaming tendency of the hydrocarbon exiting from the bed (32) in service is monitored. The flow to each particular bed (32) in service is discontinued and the bed (22) regenerated when the foaming tendency of the hydrocarbon exiting from each particular bed exceeds a predetermined value.