Upgrading heavy hydrocarbons using supercritical or near super-critical carbon dioxide

A process for upgrading a heavy hydrocarbon mixture involves: i) contacting the heavy hydrocarbon mixture with supercritical or near-supercritical CO2under conditions suitable to produce a pumpable lighter fraction and a heavier residue from said hydrocarbon mixture; and ii) utilising at least a par...

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Bibliographische Detailangaben
1. Verfasser:	TRYGVE MEYER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS FUELS LUBRICANTS METALLURGY MINERAL WAXES MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	A process for upgrading a heavy hydrocarbon mixture involves: i) contacting the heavy hydrocarbon mixture with supercritical or near-supercritical CO2under conditions suitable to produce a pumpable lighter fraction and a heavier residue from said hydrocarbon mixture; and ii) utilising at least a part of the heavier residue obtained in step (i) to generate steam for use in further extraction of the heavy hydrocarbon mixture and/or to produce electricity, wherein the CO2used in step (i) and/or generated in step (ii) is either captured and recycled or is stored subsurface (e.g. permanently stored subsurface).