Patent ID: 9279088
Filing Date: 2016-03-08
CPC Classification: C10G

Claim Text:
1. 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; b. charging the heavy components and hydrogen to a hydroprocessing zone operating under conditions effective to produce a hydroprocessed effluent having a reduced content of contaminants, an increased paraffinicity, reduced Bureau of Mines Correlation Index, and an increased American Petroleum Institute gravity; c. charging hydroprocessed effluent and steam to a convection section of a steam pyrolysis zone for heating; d. separating the heated hydroprocessed effluent into a light fraction and a heavy fraction with a vapor-liquid separation section that includes e. charging light components from step (a) and at least a portion of the light fraction of the heated hydroprocessed effluent to a pyrolysis section of the steam pyrolysis zone for thermal cracking; f. recovering a mixed product stream from the steam pyrolysis zone; g. separating the thermally cracked mixed product stream; h. purifying hydrogen recovered in step (g) and recycling it to step (b); i. recovering olefins and aromatics from the separated mixed product stream; and j. recovering pyrolysis fuel oil from the separated mixed product stream.