公开(公告)号：US20210009488A1

公开(公告)日：2021-01-14

申请号：US17042522

申请日：2019-03-19

Applicant: ENEOS Corporation

Inventor： Ai MINODA ,  Masanari AKIYAMA ,  Yasuhiro ARAKI ,  Masakazu IKEDA ,  Mayumi YOKOI

IPC: C07C5/41 ,  C07C2/16 ,  C07C2/18

Abstract: A method for producing p-xylene, comprising: a dimerization step of bringing a first raw material comprising isobutene into contact with a dimerization catalyst to generate C8 components comprising diisobutylene; a cyclization step of bringing a second raw material comprising the C8 components into contact with a dehydrogenation catalyst comprising Pt in the presence of hydrogen to obtain a reaction product comprising p-xylene; and a collection step of collecting p-xylene from the reaction product.

公开(公告)号：US20210238110A1

公开(公告)日：2021-08-05

申请号：US17054305

申请日：2019-05-13

Applicant: ENEOS CORPORATION

Inventor： Yasuhiro ARAKI ,  Masanari AKIYAMA

IPC: C07C5/41 ,  C07C15/08 ,  C07C11/107 ,  C07C2/24 ,  B01J27/25 ,  B01J21/04 ,  B01J37/02 ,  C07B63/00

Abstract: A method for producing p-xylene, comprising: a dimerization step of bringing a first raw material comprising isobutene into contact with a dimerization catalyst comprising at least one selected from the group consisting of Group 9 metal elements and Group 10 metal elements to generate C8 components comprising 2,5-dimethylhexene; and a cyclization step of bringing a second raw material comprising the C8 components into contact with a dehydrogenation catalyst to generate p-xylene by the cyclodehydrogenation reaction of the C8 components.

公开(公告)号：US20210009487A1

公开(公告)日：2021-01-14

申请号：US17042536

申请日：2019-03-19

Applicant: ENEOS Corporation

Inventor： Ai MINODA ,  Masanari AKIYAMA ,  Yasuhiro ARAKI

IPC: C07C5/41 ,  C07C2/52

Abstract: A method for producing p-xylene, comprising: a dimerization step of bringing a first raw material comprising isobutene into contact with a dimerization catalyst to generate C8 components comprising diisobutylene; a cyclization step of bringing a second raw material comprising the C8 components into contact with a dehydrogenation catalyst comprising Pt in the presence of water to obtain a reaction product comprising p-xylene; and a collection step of collecting p-xylene from the reaction product.