Process for converting heavy oils or petroleum residues to gaseous and distillable hydrocarbons

Patent · Tue Sep 20 04:00:00 EDT 1983

OSTI ID:5648544

Deschamps, A; Franckowiak, S; Le Page, J F

This process for converting a charge of heavy oils or petroleum residues to gaseous and distillable hydrocarbons comprises the steps of (a) admixing said charge with a first hydrogenated recycle oil obtained in a subsequent step of the process, heating the mixture to 350/sup 0/-450/sup 0/C, admixing it with a reducing gas at a temperature of at least 800/sup 0/C and maintaining a temperature of 530/sup 0/-850/sup 0/C and a pressure of at least 20 bars for 0.1 to 60 seconds (b) admixing the resulting product with a second hydrogenated recycle oil whose temperature is lower than 300/sup 0/C, thereby decreasing the temperature of the resultant mixture to less than 450/sup 0/C, then contacting it with steam-hydrogen stream, thereby vaporizing at least 80% of the liquid to a gaseous phase (c) treating the unvaporized remaining fraction with oxygen and steam to form a reducing gas at a temperature of at least 800/sup 0/C, used at least partly in step (a), (d) hydrogenating the gaseous phase from step (b) and recovering therefrom a light fraction distilling below 250/sup 0/C, recycling at least partly the remaining gaseous phase to step (b) after removal of CO/sub 2/ and H/sub 2/S therefrom and (e) recycling the remaining hydrogenated heavy oil fraction, distilling above 250/sup 0/C, to steps (a) and (b).

• Assignee: Institut Francais Du Petrole (France)
• Patent Number(s): US 4405442
• OSTI ID: 5648544
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CHEMICAL REACTIONS
DECOMPOSITION
DISTILLATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGENATION
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PYROLYSIS
RECYCLING
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VISCOSITY