公开(公告)号：EP2651982B1

公开(公告)日：2018-04-11

申请号：EP11806052.4

申请日：2011-12-13

申请人： Univation Technologies, LLC

发明人： BLOOD, Mark, W. ,  FORCE, Randall, L. ,  DUNCAN, Theodore, D. ,  SCHWARZ, JR., George, W. ,  MOSSER, Daniel, W. ,  FISCHER, Donald, A. ,  OLSON, Robert, D. ,  SWECKER, James, L. ,  SMITH, Cloid, Russell

IPC分类号： C08F6/00 ,  B01D53/14 ,  C08J11/02 ,  C07C7/00 ,  B01D53/00 ,  F25J3/06 ,  F25J3/08 ,  C08L23/00

CPC分类号： C08F6/005 ,  B01D53/00 ,  B01D53/002 ,  B01D53/1487 ,  B01D2256/10 ,  B01D2256/24 ,  B01D2257/102 ,  B01D2257/702 ,  B01D2257/708 ,  B01J2219/00006 ,  C07C7/005 ,  C08F6/00 ,  C08J11/02 ,  F25J3/062 ,  F25J3/064 ,  F25J3/066 ,  F25J3/08 ,  F25J2210/12 ,  F25J2220/02 ,  F25J2230/30 ,  F25J2235/60 ,  F25J2260/42 ,  F25J2260/60 ,  C08L23/00

摘要： Provided are systems and methods for separating a purge gas recovered from a polyethylene product. The method includes recovering a polyethylene product containing one or more volatile hydrocarbons from a polymerization reactor and contacting the polyethylene product with a purge gas to remove at least a portion of the volatile hydrocarbons to produce a polymer product having a reduced concentration of volatile hydrocarbons and a purge gas product enriched in volatile hydrocarbons. The purge gas product is compressed to a pressure of 2,500 kPaa to 10,000 kPaa, and is then cooled and separated into at least a first product, a second product, and a third product. A portion of one or more of the first, second, or third products is then recycled as a purge gas, to the polymerization reactor, or to the purge gas product enriched in volatile hydrocarbons prior to compression, respectively.

公开(公告)号：EP2651982A1

公开(公告)日：2013-10-23

申请号：EP11806052.4

申请日：2011-12-13

申请人： Univation Technologies, LLC

发明人： BLOOD, Mark, W. ,  FORCE, Randall, L. ,  DUNCAN, Theodore, D. ,  SCHWARZ, JR., George, W. ,  MOSSER, Daniel, W. ,  FISCHER, Donald, A. ,  OLSON, Robert, D. ,  SWECKER, James, L. ,  SMITH, Cloid, Russell

IPC分类号： C08F6/00 ,  B01D53/14 ,  C08J11/02 ,  C07C7/00

CPC分类号： C08F6/005 ,  B01D53/00 ,  B01D53/002 ,  B01D53/1487 ,  B01D2256/10 ,  B01D2256/24 ,  B01D2257/102 ,  B01D2257/702 ,  B01D2257/708 ,  B01J2219/00006 ,  C07C7/005 ,  C08F6/00 ,  C08J11/02 ,  F25J3/062 ,  F25J3/064 ,  F25J3/066 ,  F25J3/08 ,  F25J2210/12 ,  F25J2220/02 ,  F25J2230/30 ,  F25J2235/60 ,  F25J2260/42 ,  F25J2260/60 ,  C08L23/00

摘要： Provided are systems and methods for separating a purge gas recovered from a polyethylene product. The method includes recovering a polyethylene product containing one or more volatile hydrocarbons from a polymerization reactor and contacting the polyethylene product with a purge gas to remove at least a portion of the volatile hydrocarbons to produce a polymer product having a reduced concentration of volatile hydrocarbons and a purge gas product enriched in volatile hydrocarbons. The purge gas product is compressed to a pressure of 2,500 kPaa to 10,000 kPaa, and is then cooled and separated into at least a first product, a second product, and a third product. A portion of one or more of the first, second, or third products is then recycled as a purge gas, to the polymerization reactor, or to the purge gas product enriched in volatile hydrocarbons prior to compression, respectively.