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

Claim 8:
9. A method for producing aromatic compounds from pyrolysis gasoline comprising olefinic hydrocarbons, paraffinic hydrocarbons, and aromatic hydrocarbons, the method comprising:
processing the pyrolysis gasoline in an aromatics recovery complex, thereby producing a stream comprising the paraffinic hydrocarbons, and one or more streams comprising benzene, toluene, and xylenes;
aromatizing the stream comprising the paraffinic hydrocarbons in an aromatization unit, thereby converting the stream comprising the paraffinic 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 BT:X, the second stream comprising B TX having a greater amount of benzene and xylenes than the first stream comprising B TX; 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.