Patent ID: 9284497
Filing Date: 2016-03-15
CPC Classification: C10G

Claim Text:
1. An integrated solvent deasphalting and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals, the process comprising: a. charging the crude oil to a solvent deasphalting zone with an effective amount of solvent to produce a deasphalted and demetalized oil stream and a bottom asphalt phase; b. thermally cracking at least a portion of the deasphalted and demetalized oil stream in the presence of steam in a steam pyrolysis zone to produce a mixed product stream, wherein at least a portion of the deasphalted and demetalized oil stream is heated in a convection section of the steam pyrolysis zone; the heated deasphalted and demetalized oil stream is separated into a vapor phase and a liquid phase with a vapor-liquid separation device that includes a pre-rotational element having an entry portion and a transition portion, the entry portion having an inlet for receiving a flowing fluid mixture and a curvilinear conduit; a controlled cyclonic section having an inlet adjoined to the pre-rotational element through convergence of the curvilinear conduit and the cyclonic section and a riser section at an upper end of the cyclonic member through which the vapor phase passes, and a liquid collector/settling section through which the liquid passes; the vapor phase is passed to a pyrolysis section of the steam pyrolysis zone; and the liquid phase is discharged to produce a mixed product stream; c. separating the thermally cracked mixed product stream; d. recovering olefins and aromatics from the separated mixed product stream; and e. recovering pyrolysis fuel oil from the separated mixed product stream.