Integrated solvent deasphalting and steam pyrolysis process for direct processing of a crude oil

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.