Patent ID: 8598396
Filing Date: 2013-12-03
Classification: C07C

Abstract:
1. A process for oligomerising a feed containing an olefin comprising contacting the olefin with a solid phosphoric acid catalyst in a reactor tube of a tubular reactor having a shell that contains a temperature control fluid for removing heat of reaction from the reactor tube, in which process the olefin feed to the reactor contains at least 50 wt % of olefin and/or contains a substance that generates water when contacted with the catalyst, wherein operating conditions are controlled such that material exiting the reactor tube is at a pressure of at least 55 barg and wherein the shell side temperature control fluid parameters are controlled such that the peak temperature in the reactor tube is no higher than 265° C.; wherein the fresh catalyst and the catalyst at the reactor tube outlet both have a free acidity within the range of 16 to 22% by weight.