Patent ID: 6755962
Filing Date: 2004-06-29
Classification: B01J,C10G

Abstract:
A process for combined thermal and catalytic treatment of heavy petroleum in a slurry phase counterflow reactor, which process comprises:a) introducing a liquid feedstock at a top of a reactor vessel to a gas phase thermal reaction zone and thermally reacting said liquid feedstock; b) injecting a gas comprising hydrogen near a bottom of said reactor vessel in a catalytic reaction zone; c) passing said liquid from said gas phase thermal reaction zone to a liquid phase thermal reaction zone in said reactor vessel below and in communication with said gas-phase thermal reaction zone and thermally reacting said reacted liquid therein; d) passing said reacted liquid from said liquid phase thermal reaction zone to a catalytic reaction zone below said liquid phase thermal reaction zone and hydrogenating said reacted liquid therein; and e) dispersing said hydrogen through said catalytic reaction zone, through said liquid phase thermal reaction zone and through said gas-phase zone and thereafter separating said hydrogen along with gaseous hydrocarbon products from said thermal and chemical reactions.