Patent ID: 11879103
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method for producing aromatic compounds from pyrolysis gasoline comprising olefinic hydrocarbons, paraffinic hydrocarbons, and aromatic hydrocarbons, the method comprising:
splitting the pyrolysis gasoline into a stream comprising the olefinic hydrocarbons and a stream comprising the paraffinic hydrocarbons and the aromatic hydrocarbons;
aromatizing the stream comprising the paraffinic hydrocarbons and the aromatic hydrocarbons in an aromatization unit, thereby converting the stream comprising the paraffinic hydrocarbons and the aromatic hydrocarbons to a first stream comprising benzene-toluene-xylenes (BTX);
hydrotreating the first stream comprising BTX in a selective hydrotreatment unit, thereby producing a de-olefinated stream comprising BTX;
hydrodealkylating and transalkylating the de-olefinated stream comprising BTX in a hydrodealkylation-transalkylation unit, thereby producing a second stream comprising BTX, the second stream comprising BTX having a greater amount of benzene and xylenes than the first stream comprising BTX; and
processing the second stream comprising BTX in an aromatics recovery complex, thereby producing the aromatic compounds from the pyrolysis gasoline, the aromatic compounds comprising benzene, toluene, and xylenes;
wherein the olefinic hydrocarbons comprise C6 olefinic hydrocarbons, the paraffinic hydrocarbons comprise C6 and C6+ paraffinic hydrocarbons, and the aromatic hydrocarbons comprise C6 and C6+ aromatic hydrocarbons.