Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Hiroyasu Seko"'
Publikováno v:
Applied Microbiology and Biotechnology. 47:347-351
In order to develop a practical process for D-lysine production from L-lysine, successive chemical racemization and microbial asymmetric degradation were investigated. The racemization of L-lysine proceeded quantitatively at elevated temperatures. A
Publikováno v:
Applied Microbiology and Biotechnology. 47:173-179
The microbial degradation of l-methionine was investigated in order to develop a practical process for d-methionine production from racemic methionines. Among the 1000 culture strains tested, microorganisms belonging to the Achromobacter, Bacillus, M
Autor:
Hiroyasu Seko, Ryuzo Yoshioka, Yasuhiko Ozaki, Tadashi Nakatani, Katsuji Morimatsu, Yoshikazu Mori, Shinichi Yamada, Yoshinori Ishizu
Publikováno v:
The Journal of Organic Chemistry. 61:8586-8590
A key intermediate of diltiazem synthesis, (2S,3S)-2,3-dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one [(2S,3S)-1], has been efficiently synthesized by an asymmetric reduction of the prochiral ketone, 2-(4-methoxyphenyl)-1,5-benzot
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 26:451-454
We are concerned with a new application of fluidized beds. Such a bed containing 333 vertical tubes was designed and was built as a commercial plant. In this plant, the fluidized bed was used as a cooling device for the exothermic catalytic oxidation
Publikováno v:
Annals of the New York Academy of Sciences. 589:540-552
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 7:44-51
This paper presents a simulation model to predict the reaction performance of a fluidized bed from the operating conditions. The simulation model was derived from the observation of bubble behavior, and was developed in a form which can elucidate the
Publikováno v:
KAGAKU KOGAKU RONBUNSHU. 2:176-181
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 15:305-310
Necessary and sufficient conditions for existence of steady states are derived from a mathematical model of fluid catalytic cracker (FCC), and sufficient conditions for stable steady states are determined from the Hurwitz stability criterion by using
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 11:130-135
The cracking of methylcyclohexane (MCH) over silica-alumina catalyst and the regeneration of catalyst deactivated due to coking are applied to a fluid catalytic cracker system consisting of a cracker and a regenerator, and a system model is derived f
Publikováno v:
Bulletin of The Japan Petroleum Institute. 13:39-44
For the catalytic cracking of methylcyclohexane in a fixed bed, the product distribution and the amount of coke formed were measured under the conditions of 475∼553°C temperature and one atmosphere pressure over a F. C. C. catalyst consisting of 2