Patent ID: 9682901
Date: 2017-06-20
CPC Classifications: B01J,C07C

Claim:
1. A process for producing n-pentane and isobutane, wherein the process comprises: providing a hydrocarbon feed stream comprising C4 and C5 hydrocarbons; combining a recycle stream comprising C4+ hydrocarbons and the hydrocarbon feed stream to produce a combined feed stream; separating the combined feed stream to produce an iC4 product stream, an nC5+ product stream, and an iC5/nC4 feed stream; simultaneously disproportionating and isomerizing the iC5/nC4 feed stream in an isomerization zone substantially in the absence of water and in the presence of hydrogen to produce an intermediate stream comprising C3-C6 hydrocarbons; and separating the C3-C6 hydrocarbons in the intermediate stream to produce a C3− stream and the recycle stream comprising C4+ hydrocarbons.