公开(公告)号：US20250154081A1

公开(公告)日：2025-05-15

申请号：US18806332

申请日：2024-08-15

Applicant: UOP LLC

Inventor： Kristen E. Allaire ,  Stanley J. Frey ,  David S. Lafyatis ,  Brett King

IPC: C07C6/12

Abstract: The processes upgrade a low value heavy aromatics stream into a high value BTX precursor stream. It treats the naphthalenic molecules in the heavy aromatics stream comprising C9 to C12 aromatics prior to reaching the transalkylation reactor. The naphthalenic molecules are converted into BTX precursors by partially hydrogenating one of the aromatic rings and subsequently ring opening the saturated ring to form a monoaromatic prior to the transalkylation reactor. With naphthalene no longer present, the remaining C11 monoaromatics may be processed in the aromatics complex for an overall increased BTX production.