Pertaining to petroleum products whose characteristics are so similar they can be commingled.


Related Terms

POLISHING

1. In petroleum refining, removal of final traces of impurities, as for a lubricant, by clay adsorption or mild hydrogen treating. Smoothing and brightening a surface such as a metal or a rock through the use of abrasive materials.

PETROLEUM PROCESSING

The recovery and processing of various usable fractions from the complex crude oils; usable fractions include gasoline, kerosine, diesel oil, fuel oil, and asphalt. Also known as petroleum refining.

PARAFFIN PRESS

A filter press used during petroleum refining for the separation of paraffin oil and crystallizable paraffin wax from distillates.

MOVING-BED CATALYTIC CRACKING

[CHEMENG] Petroleum refining process for cracking (breaking) of long hydrocarbon molecules by use of heat, pressure, and a granular cracking catalyst that is continuously cycled between the reactor vessel and the catalyst regenerator.

LOADING RACK

The shelter and associated equipment for the withdrawal of liquid petroleum or a chemical product from a storage tank and loading it into a railroad tank car or tank truck.

ISOFORMING

A petroleum refinery process in which olefinic naphtha is contacted with an alumina catalyst at high temperature and low pressure to produce isomers of higher octane number.

INHIBITOR SWEETENING

Petroleum refinery treating process to sweeten gasoline (convert mercaptans to disulfides) of low mercaptan content; uses a phenylenediamine inhibitor, air, and caustic.

HYPOCHLORITE SWEETENING

A petroleum refinery process to oxidize gasoline mercaptans by agitation with an aqueous, alkaline hypochlorite solution.

HYDROTREATING

[CHEMENG] Oil refinery catalytic process in which hydrogen is contacted with petroleum intermediate or product streams to remove impurities, such as oxygen, sulfur, nitrodirect indication of the amount of moisture in the air or other gas, the indication usually being in terms of relative humidity as a percentage which the moisture present bears to the maximum amount of moisture that could be present at the location temperature without condensation taking place.

HYDRODESULFURIZATION

A catalytic process in which the petroleum feedstock is reacted with hydrogen to reduce the sulfur content in the oil.

Related questions

MarineProHelp 2018 - 2020