Title:
HYDROGENATING CATALYST, HYDROGENATING METHOD AND HYDROTREATMENT OF LIGHT OIL
Document Type and Number:
Japanese Patent JP3463089
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a hydrogenating catalyst having high hydrogenating function for an aromatic or heterocyclic ring, resistance against a sulfur compd. and a nitrogen compd. and long life by supporting palladium and platinum on an ultra-stabilized Y-type zeolite carrier modified by heavy rare earth elements.
SOLUTION: As a carrier for supporting Pd and Pt components, an ultra- stabilized Y-type zeolite (carrier zeolite) modified by heavy rare earth elements is used. The SiO2/Al2O3 molar ratio of this carrier zeolite is about 5.0-1,000, pref., about 10-20 and, as the heavy rare earth elements, there are four elements, that is, ytterbium(Yb), gadolinium(Gd), terbium(Tb) and dysprosium(Dy). In order to modify the ultra-stabilized Y-type zeolite, at least one element selected from these heavy rare earth elements is used. Only one of palladium and platinum may be supported on the carrier zeolite but both of them are pref. supported thereon.
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Inventors:
Yuji Yoshimura
Hiroyuki Yasuda
Toshio Sato
Rinto Kijima
Hiroyuki Yasuda
Toshio Sato
Rinto Kijima
Application Number:
JP32706999A
Publication Date:
November 05, 2003
Filing Date:
November 17, 1999
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
Yuji Yoshimura
Hiroyuki Yasuda
Toshio Sato
Rinto Kijima
Yuji Yoshimura
Hiroyuki Yasuda
Toshio Sato
Rinto Kijima
International Classes:
B01J29/12; B01J32/00; C10G45/54; C10G49/08; (IPC1-7): B01J29/12; B01J32/00; C10G45/54; C10G49/08
Other References:
水上富士夫，外５名，ディーゼル機関排出物の低減のための軽油品質改善技術に関する研究，環境保全研究成果集，１９９９年，Ｎｏ．１，ｐ．４１−１〜４１−１１
Attorney, Agent or Firm:
Toshiaki Ikeura
Toshiaki Ikeura
Toshiaki Ikeura