naphthene-base crude petroleum

См. также в других словарях:

• naphthene-base — ˈ ̷ ̷ˌ ̷ ̷| ̷ ̷ adjective : containing relatively large amounts of various cyclic hydrocarbons (as naphthenes) used especially of crude petroleum; compare asphalt base, paraffin base …   Useful english dictionary

• petroleum — I (New American Roget s College Thesaurus) n. oil. See fuel. II (Roget s IV) n. Syn. crude oil, paraffin base oil, asphalt base oil, naphthene base oil, coal oil; see also oil . III (Roget s 3 Superthesaurus) n. oil, gas, natural gas, fuel,… …   English dictionary for students

• petroleum — petroleous, adj. /peuh troh lee euhm/, n. an oily, thick, flammable, usually dark colored liquid that is a form of bitumen or a mixture of various hydrocarbons, occurring naturally in various parts of the world and commonly obtained by drilling:… …   Universalium

• asphalt-base — ˈ ̷ ̷ˌ ̷ ̷| ̷ ̷ adjective : containing relatively large amounts of asphalt forming substances : yielding asphaltic residues on refining used especially of crude petroleum; compare naphthene base, paraffin base …   Useful english dictionary

• paraffin-base — | ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ adjective : containing relatively large amounts of paraffin hydrocarbons : yielding paraffin wax on refining used especially of crude petroleum; compare asphalt base, naphthene base …   Useful english dictionary

• Catalytic reforming — is a chemical process used to convert petroleum refinery naphthas, typically having low octane ratings, into high octane liquid products called reformates which are components of high octane gasoline (also known as petrol). Basically, the process …   Wikipedia