Invention Grant
- Patent Title: Integrated process for optimum production of para-xylene
-
Application No.: US16592158Application Date: 2019-10-03
-
Publication No.: US10894755B2Publication Date: 2021-01-19
- Inventor: Qi Xu , Zhonglin Zhang , Raed Abudawoud
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: Saudi Arabian Oil Company
- Current Assignee: Saudi Arabian Oil Company
- Current Assignee Address: SA Dhahran
- Agency: Bracewell LLP
- Agent Constance R. Rhebergen
- Main IPC: C07C4/18
- IPC: C07C4/18 ; C07C5/27 ; C07C6/06 ; C07C15/08 ; B01L3/14 ; B01J19/18 ; C07C4/12

Abstract:
A method of producing p-xylene comprising the steps of separating the reformate feed in the reformate splitter to produce a benzene stream, a combined heavy stream, a xylene stream, and a toluene stream, converting the C9+ aromatic hydrocarbons in the presence of a dealkylation catalyst in the dealkylation reactor to produce a dealkylation effluent, separating the dealkylation effluent in the dealkylation splitter to produce a C9 stream and a C10+ stream, reacting the C9 stream, the toluene stream, the benzene stream, and the hydrogen stream in the presence of a transalkylation catalyst in the transalkylation reactor to produce a transalkylation effluent, separating the p-xylenes from the xylene stream in the p-xylene separation unit to produce a p-xylene product and a p-xylene depleted stream, converting the m-xylene and o-xylene in the p-xylene depleted stream in the isomerization unit to produce an isomerization effluent.
Information query