← Back to Patent Explorer
EP0482818A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of preparing catalyst for hydrogenation of hydrocarbon oil

Assignee: Nippon Ketjen Co Ltd
•
Filing: 1991-10-15
•
Granted: —
•
Expires: 2011-10-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Disclosed is a method of preparing a catalyst for hydrogenation of a hydrocarbon oil, in which an aqueous solution containing a metal of the Group VI of the Periodic Table and a metal of the Group VIII of the same along with a hydroxycarboxylic acid and optionally phosphoric acid is added to a carrier substance consisting essentially of at least one of an inorganic oxide and an inorganic hydrate, and the resulting blend is kneaded, shaped and thereafter dried at a temperature not higher than 200°C. The catalyst has a high catalyst activity and is used for hydrogenation of a hydrocarbon oil, especially satisfying the requirement of reducing the sulfur content in a light oil.

Inventors

  • 👤 Tetsuro Kamo

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 14:00
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J31/00; B01J31/16; B01J31/1616; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J37/00; B01J37/0009; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2531/00; B01J2531/02; B01J2531/0269; B01J2531/0272; B01J2531/60; B01J2531/64; B01J2531/66; B01J2531/80; B01J2531/84; B01J2531/845; B01J2531/847; B01J31/02; B01J31/0201; B01J37/02; B01J37/0236

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 71 words
A method of preparing a catalyst for hydrogenation of a hydrocarbon oil, in which an aqueous solution containing metals of both Group VI and Group VIII of the Periodic Table along with a hydroxycarboxylic acid is added to a carrier consisting essentially of either or both of an inorganic oxide and an inorganic hydrate, and the resulting blend is kneaded, shaped and thereafter dried at a temperature not higher than 200°C.
Claim 2
Independent Claim 72 words
A method of preparing a catalyst for hydrogenation of a hydrocarbon oil, in which an aqueous solution containing metals of both Group VI and Group VIII of the Periodic Table with a hydroxycarboxylic acid and phosphoric acid is added to a carrier consisting essentially either or both of an inorganic oxide and an inorganic hydrate, and the resulting blend is kneaded, shaped and thereafter dried at a temperature not higher than 200°C.
Claim 3
Dependent Claim 29 words
The method as claimed in claim 1 or claim 2, in which the metal of Group VI of the Periodic Table is at least one of Mo and W.
Claim 4
Independent Claim 27 words
The method as claimed in any preceding claim, in which the metal of Group VIII of the Periodic Table is at least one of Co and Ni.
Claim 5
Dependent Claim 38 words
The method as claimed in any preceding claim 1, in which the hydroxycarboxylic acid is at least one of glycolic acid, hydroxypropionic acid, hydroxybutyric acid, hydroxyhexanoic acid, tartaric acid, malic acid, glyceric acid, citric acid and gluconic acid.
Claim 6
Independent Claim 27 words
The method as claimed in any preceding claim, in which the amount of the metal Group VI is from 5 to 30 by weight as its oxide.
Claim 7
Dependent Claim 38 words
The method of preparing a catalyst for hydrogenation of a hydrocarbon oil as claimed in claim 1, in which the amount of the metal of Group VIII is from 1 to 8 % by weight as its oxide.
Claim 8
Dependent Claim 32 words
The method of preparing a catalyst for hydrogenation of a hydrocarbon oil as claimed in claim 1, in which the carrier is one or more alumina, silica, titania, zirconia, and hydrates thereof.
Claim 9
Dependent Claim 36 words
The method of preparing a catalyst for hydrogenation of a hydrocarbon oil as claimed in claim 2, in which the phosphoric acid is meta-phosphoric acid, pyro-phosphoric acid, ortho-phosphoric acid, tri-phosphoric acid, tetra-phosphoric acid or nickel phosphate.
Claim 10
Dependent Claim 42 words
The method of preparing a catalyst for hydrogenation of a hydrocarbon oil as claimed in claim 2 or 9, in which the amount of the phosphoric acid to be in the catalyst is from 0.1 to 8 % by weight as P₂O₅.
Claim 11
Dependent Claim 35 words
The method of preparing a catalyst for hydrogenation of a hydrocarbon oil as claimed in claim 2, 9 or 10, in which the catalyst carrier is selected from alumina, silica, titania, zirconia, and their hydrates.
Claim 12
Independent Claim 17 words
A method of hydrogenating a hydrocarbon oil utilising a catalyst prepared in accordance with any preceding claim.

References Cited (Backward Citations)

US3232887A Cited
US3853791A Cited
EP0181035A2 Cited
EP0357295A2 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag