Integrated hydrotreating and steam pyrolysis process including residual bypass for direct processing of a crude oil

An integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals, the process comprising:

• a. separating the crude oil into light components and heavy components, wherein the heavy components corresponds to a residue fuel oil blend and the light components are remaining hydrocarbons from the crude oil that are lighter than the residue fuel oil blend;
• b. charging the light components and hydrogen to a reactor of a catalytic hydroprocessing zone, the reactor operating under conditions effective to produce a hydroprocessed effluent;
• c. separating the hydroprocessed effluent in a high pressure separator to recover a gas portion that is cleaned and recycled to the reactor of the catalytic hydroprocessing zone as an additional source of hydrogen, and a liquid portion,
• d. separating the liquid portion from the high pressure separator in a low pressure separator into a gas portion and a liquid portion;
• e. thermally cracking the liquid portion from the low pressure separator in the presence of steam in a steam pyrolysis zone to produce a mixed product stream,
• f. charging the thermally cracked mixed product stream to a quenching zone to produce an intermediate quenched mixed product stream;
• g. separating the quenched mixed product stream;
• h. purifying hydrogen recovered in step (g) and recycling it to the reactor of the catalytic hydroprocessing zone;
• i. recovering olefins and aromatics from the separated mixed product stream;
• and
• j. recovering pyrolysis fuel oil from the separated mixed product stream.