The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 2016
Filed:
May. 24, 2012
Shinichiro Yanagawa, Tokyo, JP;
Yasuyuki Iwasa, Tokyo, JP;
Ryoji Ida, Tokyo, JP;
Masahide Kobayashi, Tokyo, JP;
Susumu Yasui, Yokohama, JP;
Yoshishige Sugi, Yokohama, JP;
Atsushi Fukui, Yokohama, JP;
Akira Utatsu, Yokohama, JP;
Shinichiro Yanagawa, Tokyo, JP;
Yasuyuki Iwasa, Tokyo, JP;
Ryoji Ida, Tokyo, JP;
Masahide Kobayashi, Tokyo, JP;
Susumu Yasui, Yokohama, JP;
Yoshishige Sugi, Yokohama, JP;
Atsushi Fukui, Yokohama, JP;
Akira Utatsu, Yokohama, JP;
JX Nippon Oil & Energy Corporation, Tokyo, JP;
CHIYODA CORPORATION, Yokohama-shi, Kanagawa, JP;
Abstract
The present method for producing monocyclic aromatic hydrocarbons is a method for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms. This method includes a cracking and reforming reaction step of bringing oil feedstock into contact with a catalyst to cause a reaction and obtain a product containing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms and a heavy fraction having 9 or more carbon atoms, a purification and recovery step of purifying and recovering the monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms separated from the product formed by the cracking and reforming reaction step, and a first returning step of returning at least a portion of toluene obtained by the purification and recovery step to the cracking and reforming reaction step.