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:
Mar. 03, 2015
Filed:
Jan. 16, 2012
Tatsuhiko Kurakami, Yamaguchi, JP;
Susumu Matsumoto, Gunma, JP;
Atsushi Sudo, Gunma, JP;
Kazuo Shiraishi, Gunma, JP;
Masashi Hashiba, Gunma, JP;
Tatsuhiko Kurakami, Yamaguchi, JP;
Susumu Matsumoto, Gunma, JP;
Atsushi Sudo, Gunma, JP;
Kazuo Shiraishi, Gunma, JP;
Masashi Hashiba, Gunma, JP;
NipponKayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A catalyst and a catalyst packing schedule are designed so that a relation between the raw material conversion rate at which the yield of the objective product becomes maximum and the raw material conversion rate at which a high and low correlation between maximum temperature of the catalyst layer present closest to a reaction gas inlet side Zin and maximum temperature of the catalyst layer present closest to a reaction gas outlet side Zout is reversed satisfies a specific condition of 0.5≦Cmax−Ccrs≦5, in which Cmax: a raw material conversion rate at which yield of the objective products becomes maximum; and Ccrs: a raw material conversion rate at which, when maximum temperature of the catalyst layer Zin is regarded as Tin, maximum temperature of the catalyst layer Zout is regarded as Tout, and the raw material conversion rate is changed, a high and low correlation between Tin and Tout is reversed.