SLURRY HYDROCARBON SYNTHESIS WITH EXTERNAL PRODUCT FILTRATION

• Main Authors: MIN CHANG, CHARLES WILLIAM DEGEORGE
• Format: Patent
• Language: English
• Published: 31.01.2003
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; ORGANIC CHEMISTRY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; 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; THEIR RELEVANT APPARATUS; TRANSPORTING

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