Title:
HYDROGENATION AND DESULFURIZATION OF HEAVY OIL
Document Type and Number:
Japanese Patent JP3527635
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To regenerate a deactivated and unutilized catalyst and effectively utilize the catalyst due to the obtaining of suitable desulfurization effects by regenerating the deactivated catalyst and optimizing the method for arranging the regenerated catalyst and a new catalyst when hydrodesulfurizing a heavy oil.
SOLUTION: When a heavy oil is hydrodesulfurized in a reactional zone filled with a catalyst, a new catalyst is disposed on the side of the former stage of the reactional zone and the regenerated catalyst is disposed on the side of the latter stage of the reactional zone. The amount of the filled new catalyst in the reactional zone is preferably 20-95 vol.% and that of the regenerated catalyst is preferably 5-80 vol.% therein. The regenerating treatment of the catalyst is typically carried out by a method for washing the used catalyst with a solvent such as toluene, then preferably carrying out an oxidizing treatment and removing the carbonaceous material. The regenerated catalyst preferably has 2-35 wt.% vanadium content, ≤10 wt.% of carbon content, 100-200 m2/g specific surface area and 0.3-1.0 cc/g pore volume. A catalyst prepared by regenerating treatment of a catalyst, etc., supporting nickel on alumna is preferred.
Inventors:
Iwamoto, Ryuichiro
Nozaki, Takao
Nozaki, Takao
Application Number:
JP14366098A
Publication Date:
May 17, 2004
Filing Date:
May 26, 1998
Export Citation:
Assignee:
IDEMITSU KOSAN CO LTD
International Classes:
C10G45/04; C10G45/06; C10G45/08; C10G45/10; (IPC1-7): C10G45/04; C10G45/06; C10G45/08; C10G45/10
Attorney, Agent or Firm:
大谷 保
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