Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Regeneration of spent hydrodesulfurization catalysts employing presulfiding treatment and heteropoly acids

Patent ·
OSTI ID:6305149
; ;

The removal of metals, especially vanadium, from spent hydrofining catalyst is accomplished by a two-step process. Treatment with a gaseous sulfur-containing reagent brings the metals to the surface of the catalyst and converts them to sulfides, which are then efficiently removed by contact with a heteropoly acid such as molybdophosphoric acid. Treatment of deactivated hydrodesulfurization catalysts such as Co-Mo supported on alumina by this process results in substantially complete regeneration of catalytic activity.

Assignee:
Exxon Research And Engineering Co
Patent Number(s):
US 4272400
OSTI ID:
6305149
Country of Publication:
United States
Language:
English

Similar Records

Regeneration of spent hydrodesulfurization catalysts with heteropoly acids and hydrogen peroxide
Patent · Tue May 19 00:00:00 EDT 1981 · OSTI ID:6305106
Regeneration of spent hydrodesulfurization catalyst with heteropoly acids
Patent · Tue Jun 09 00:00:00 EDT 1981 · OSTI ID:6242274
Presulfiding coal liquid hydrodesulfurization catalysts
Journal Article · Fri Dec 31 23:00:00 EST 1976 · Coal Process. Technol.; (United States) · OSTI ID:6227784

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CALCINATION
CATALYSTS
CHEMICAL REACTIONS
COBALT COMPOUNDS
DECOMPOSITION
DEMETALLIZATION
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
METALS
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
PETROLEUM
PROCESSING
PYROLYSIS
REFINING
REGENERATION
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM