Patent ID: 8344198
Filing Date: 2013-01-01
Classification: B01J,C07C,C08F,C10G,Y02P

Abstract:
1. A process to deactivate a halide-containing olefin oligomerization catalyst system and inhibit or limit the decomposition of the deactivated catalyst system during recovery of an olefin oligomerization product comprising the steps of: a) contacting an alcohol with an adsorbent capable of adsorbing water; b) forming an intermediate stream by contacting an olefin oligomerization reactor effluent stream which comprises olefin product(s), catalyst system, and heavies with the alcohol thereby deactivating the catalyst system; and c) separating the intermediate stream of step (b) into at least one olefin oligomerization product stream and at least one heavies stream; wherein the separation comprises a distillation comprising a reboiler and material passed through the reboiler is maintained below about 190° C., and wherein said catalyst system comprises a chromium source, a pyrrole-containing compound and an alkylaluminum compound and wherein the alcohol is soluble in any portion of the reactor effluent stream.