新規アルミナ・オン・アルミナ複合担体

Japanese Patent JP5364228

B2

Catalyst support (I) comprises a base of alumina, where (I) has a specific surface lower than 90 m 2>/g; a total porous volume of at least 0.3 cm 3>/g; a distribution of porosity at least bimodal allowing to distinguish a main and a secondary porosity; a relation of order between the main and the secondary porosity; and crystallographic phases determined by diffraction of X-rays corresponding to alpha/theta/kappa/delta/gamma alumina. Catalyst support (I) comprises a base of alumina, where (I) has a specific surface measured by isotherm of nitrogen adsorption lower than 90 m 2>/g; a total porous volume measured by mercury intrusion of at least 0.3 cm 3>/g; a distribution of porosity at least bimodal allowing to distinguish a main porosity (in which at least 80% of total porous volume corresponds to pores of size larger than 15 Nm) and a secondary porosity (in which at least 3% of total porous volume corresponds to pores of size lower than 12 nm); a relation of order between the main porosity and the secondary porosity defined by the fact that every element of the main porosity communicates either with the exterior of the support particle, or with at least an element of the secondary porosity (where the phrase is to be taken in a nonexclusive sense); and crystallographic phases determined by diffraction of X-rays corresponding to alpha/theta/kappa/delta/gamma alumina. An independent claim is also included for the preparation of (I).

Renault Revel
Stefan Moran
Lars Fischur
Christoph James

JP2005281995A

December 11, 2013

September 28, 2005

Click for automatic bibliography generation  

IFP ENERGIES NOUVELLES

B01J35/10; B01J32/00; B01J37/08; C01F7/02

JP57123821A
JP54157507A
JP10045412A
JP11128744A
JP42020384B1
JP2003277306A
JP7504357A
JP57135721A
JP62199687A
JP60153925A

US4460699

Akira Watanabe
Matsumura Naoto
Einosuke Kishimoto

Previous Patent: JPS5364227

Next Patent: JPS5364229