Method for high-temperature short-time distillation of residual oils

US6413415B1 · kind B1 · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Hans-Jurgen Weiss · Oberursel, DE
• Jorg Schmalfeld · Friedrichsdorf, DE
• Udo Zentner · Griesheim, DE
• Ingo Dreher · Oberursel, DE
• Willibald Serrano · Buxheim, DE

Key dates

• Filing date: Jan 3, 2000
• Grant date: Jul 2, 2002
• Expiry date: Jan 3, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G31/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

High temperature flash distillation, for treating residual oils originating from crude oil refining, natural bitumen and/or tar sands, comprises feeding the oil to a mixer with granular hot coke, which serves as a thermal transfer medium. In mixing, 60-90% of the oil is vaporized. The non-vaporized fraction includes metal-containing asphaltenes. This fraction is further converted in the mixer, to oil vapor, gas and coke. Gases and vapor are withdrawn from the mixer, separately from the coke. The vapor phase is cooled and condensed to produce product oil. The gas itself is a further product. The coke is reheated and recycled to the mixer as the thermal transfer medium.