Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1987-10-28
1990-03-27
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
208216R, 502 31, B01J 3866, B01J 3856, B01J 2730, C10G 4508
Patent
active
049120719
ABSTRACT:
The present invention relates to a method of unloading a catalyst from a reactor wherein the reactor is filled with mixed liquid of condensed ring aromatic hydrocarbon having a required number of ring members, i.e. preferably 2 to 4 ring members, and gas oil, to wet the catalyst so as to form a coating of film on the catalyst before unloading the catalyst from the reactor.
REFERENCES:
patent: 3256353 (1966-06-01), Shuman, Jr. et al.
patent: 3772211 (1973-11-01), Mounce
patent: 4031031 (1977-06-01), Yamaguchi et al.
patent: 4062801 (1977-12-01), Burton et al.
patent: 4155875 (1979-05-01), Yamaguchi et al.
patent: 4268414 (1981-05-01), Kawakami et al.
patent: 4576712 (1986-03-01), Greenwood
Hirachi Tomiyasu
Kaijima Toyoo
Kawakami Katsuhiko
Takano Jun-ichi
Kashima Engineering Co., Ltd.
Konopka Paul E.
Softard Industries Co., Ltd.
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