The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 1988
Filed:
May. 04, 1987
Mitri S Najjar, Hopewell Junction, NY (US);
John Stevenson, Gardena, CA (US);
Michael W Becker, Westminster, CA (US);
Texaco Inc., White Plains, NY (US);
Abstract
This invention pertains to the use of an ash-removal additive in the production of hot raw gaseous mixtures comprising H.sub.2 +CO and containing entrained molten slag by the partial oxidation of a feedstock comprising a heavy liquid hydrocarbonaceous fuel having a nickel and vanadium-containing ash or petroleum coke having a nickel and vanadium-containing ash. Sticking and build-up of molten slag on the surfaces of a steel quench ring and heat exchanger which may be contacted by the molten slag entrained in the hot raw effluent gas stream is prevented by the high temperature electrodeposition of a protective metal e.g. aluminum or titanium. The protective metal is electrodeposited from an electrolytic bath comprising molten fluorides and diffuses beneath the surface and forms an alloy or solid solution with the subsurface metal.