In a process for quench-cooled, vapor-phase polymerization of olefin monomer comprising (a) contacting an olefin monomer, or mixture of olefin monomers, with a polymerization catalyst in the presence of hydrogen in a reactor vessel to form polymer product, and (b) removing, condensing and recycling off-gas...http://www.google.es/patents/US4640963?utm_source=gb-gplus-sharePatente US4640963 - Method and apparatus for recycle of entrained solids in off-gas from a gas-phase polyolefin reactor
Method and apparatus for recycle of entrained solids in off-gas from a gas ...