Patent · US Expired

Catalyst for hydrorefining

US5648311A · kind A · utility

3Cited by

5References

6Claims

0Family size

Assignee

Krupp VDM GmbH · DE

Inventors

Wilfried Herda · Düsseldorf, DE
Jurgen Koppe · Schkopau, DE

Key dates

Filing date	Aug 14, 1994
Grant date	Jul 15, 1997
Priority date	—
Expiry date	Aug 14, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10G45/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a catalytic hydrorefining of mixtures of hydrocarbons which contain hetero atoms such as nitrogen, sulphur, halogens and/or oxygen. The characterizing feature of the invention is that nickel or a nickel-molybdenum alloy containing more than 30% nickel, residue molybdenum, is thermally treated in an air atmosphere at temperatures of 400.degree. to 1200.degree. C. for a period of 0.25 to 10 hours, whereafter it is subjected to a hydrogen activation in the temperature range of 200.degree. to 600.degree. C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.