دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a process in the manufacture of wire rope that crimps the strands, giving the rope a permanent set and controlling its flexibility.

n: the gas produced from certain petroleum refinery operations (such as cracking or reforming). The composition of refinery gas varies in accordance with the process by which it is produced, but it consists essentially of the same paraffin hydrocarbons as natural gas plus olefins (propylene, ootylene, and ethylene) not found in natural gas.

n: a cracking process in which low-octane naphthas or gasolines are converted into high-octane products. Thermal reforming is carried out at high temperatures and pressures (932.-1,040.F, 500.- 560�C, 250 to i,OOO pounds per square inch-i.7 megapascals). Catalytic reforming is carried out at lower temperatures (850.-950.F, 454 .-510.C) and much lower pressures. Reforming is usually a once- through process.