Substances used as intermediates for the production of chemicals as solvents and for gasoline blending. Examples of these products are benzene and xylene.
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POLYFORMING
A noncatalytic, petroleum-refinery process charging C3 and C4 gases with naphtha or gas oil at high temperature to produce high-quality gasoline and fuel oil; mostly replaced by catalytic reforming; the prodTesting and Materials analysis of paraffins (P), olefins (O), naphthenes (N), and aromatics (A) in gasolines.
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PHOSPHORIC ACID POLYMERIZATION
A petroleum-refinery process using phosphoric acid catalyst to convert propylene, butylene, or both, into high-octane gasoline or petrochemical polymers.
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OIL DILUTION VALVE
A valve used to mix gasoline with engine oil to permit easier starting of the gasoline engine in cold weather.
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NATURAL-GASOLINE PLANT
Compression, distillation, and absorption process facility used to remove natural gasoline (mostly butanes and heavier components) from natural gas.
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METERING ROD
A device consisting of a long metallic pin of graduated diameters fitted to the main nozzle of a carburetor (on an internal combustion engine) or passage leading thereto in such a way that it measures or meters the amount of gasoline permitted to flow by it at various speeds. Also known as metering pin.
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LEAD SUSCEPTIBILITY
The increase in octane number of gasoline imparted by the addition of a specified amount of TEL (tetraethyllead).
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KNOCK INTENSITY
The intensity of knock (detonation) recorded when testing a motor gasoline for octane or knock rating.
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INTERNAL COMBUSTION ENGINE
A prime mover in which the fuel is burned within the engine and the products of combustion serve as the thermodynamic fluid, as with gasoline and diesel engines.
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INHIBITOR SWEETENING
Petroleum refinery treating process to sweeten gasoline (convert mercaptans to disulfides) of low mercaptan content; uses a phenylenediamine inhibitor, air, and caustic.
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IDLING JET
A carburetor part that introduces gasoline during minimum load or speed of the engine.
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