plural serial stages only

Full Title

Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes > plural serial stages only

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT

Subclass:

CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES

Child Classifications

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• C10G 53/04 including at least one extraction step
• C10G 53/08 including at least one sorption step
• C10G 53/1 including at least one acid-treatment step
• C10G 53/12 including at least one alkaline-treatment step
• C10G 53/14 including at least one oxidation step