Patent ID: 9289748
Filing Date: 2016-03-22
CPC Classification: B01D,B01J,Y02C

Claim Text:
1. A method of regenerating a desiccant in an off-line treater of a polyolefin production process, the method comprising a heating phase followed by a cooling phase, the heating phase comprising: treating a recycle stream of the polyolefin production process in an on-line treater to yield a treated recycle stream; heating at least a portion of the treated recycle stream to yield a regenerating gas; regenerating at least a portion of the desiccant in the off-line treater using the regenerating gas to yield a regenerating effluent stream; separating the regenerating effluent stream into an impurity stream and a regenerating recycle stream; and recycling the regenerating recycle stream to the on-line treater.