Title:
METHOD FOR DEHYDROGENATION AND ITS APPARATUS
Document Type and Number:
Japanese Patent JP3165245
Kind Code:
B2
Abstract:
PURPOSE: To obtain a method for purifying and separating a reactional product in which an inhibitor for dehydrogenating reaction produced in a dehydrogenating reactional process in a raw material for the dehydrogenation can be removed in a reactional system.
CONSTITUTION: A dehydrogenating reactor composed of a reactional column 21 containing an evaporating part 25, distillation trays 22 and 24 and a catalyst bed 23 and a refluxing cooling part 30 for a vapor is charged with a raw material, which is then evaporated. The evaporated vapor is then passed through the reactional column 21 containing the evaporating trays and the catalyst bed, then cooled and liquefied in the refluxing cooling part 30. Part or the total amount thereof is refluxed to the reactional column 21. The dehydrogenating aromatization of a condensed polycyclic compound which has hitherto been difficult according to a conventional method can be carried out in a high yield which is conventionally unexpectable with hardly any deterioration in the catalyst.
Inventors:
Toshio Sato
Ikuo Ito
Kyouichi Takeda
Muroi Takagi
Ikuo Ito
Kyouichi Takeda
Muroi Takagi
Application Number:
JP17948492A
Publication Date:
May 14, 2001
Filing Date:
June 11, 1992
Export Citation:
Assignee:
Sumikin Chemical Co., Ltd.
NE Chemcat Co., Ltd.
NE Chemcat Co., Ltd.
International Classes:
B01D3/00; C07B35/04; B01J8/02; C07B61/00; C07C5/367; C07C5/387; C07C13/54; C07C15/24; (IPC1-7): C07C5/367; C07C15/24
Other References:
【文献】西独国特許出願公開2250023(DE,A1)
Attorney, Agent or Firm:
Shigenobu Ikejou (1 person outside)