Title:
炭化水素の脱芳香族化のための吸着方法
Document Type and Number:
Japanese Patent JP4162805
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an effective adsorption for separation of aromatics from hydrocarbon containing much aromatic contaminants and capable of desulfurization and energy conservation or the like by contacting serially connected beds of molecular sieves. SOLUTION: This adsorption process includes following steps; a hydrocarbon having 45-300 deg.C boiling point and including 0.5-15 wt.% aromatic carbon (Z) is adsorbed on serially connected beds A, B, C, D, E, F and G of molecular sieves for the compound Z (e.g. silicagel, zeolite or alumina) and purged with a controlled cold desorbing liquid so as to recover paraffin/isoparaffin/ naphthene-based hydrocarbons and the adsorbed compound Z is desorbed with a heated desorbing liquid by the aid of thermal swing temperature.
Inventors:
Paulo Tavares de Souza
Wilson Kenzo Fujiwara
Jose Antonio Vidal Vieira
Fernando Antonio do Arte Santiago
Ricardo Rodriguez Dakunha Pinto
Keiji Maeshiro
Wilson Kenzo Fujiwara
Jose Antonio Vidal Vieira
Fernando Antonio do Arte Santiago
Ricardo Rodriguez Dakunha Pinto
Keiji Maeshiro
Application Number:
JP14517999A
Publication Date:
October 08, 2008
Filing Date:
May 25, 1999
Export Citation:
Assignee:
Petroleo Brasileiro Sociedad Anonima-Petrobras
International Classes:
C10G25/00; C10G25/03; C07C7/12; C07C7/13; C10G25/05; C10G25/09
Domestic Patent References:
| JP6501719A | ||||
| JP5283302A | ||||
| JP4949703A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Sadafumi Kobori
Yukihiro Ikeda
Hajime Asamura
Sadafumi Kobori
Yukihiro Ikeda