Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents

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

Navigate with arrow keys, Enter to open

• C10G 21/02 with two or more solvents, which are introduced or withdrawn separately
• C10G 21/06 characterised by the solvent used
• C10G 21/28 Recovery of used solvent
• C10G 21/3 Controlling or regulating