CRUDE OILS
المؤلف:
sami matar & Lewis. F. Hatch
المصدر:
Chemistry of PETROCHEMICAL PROCESSES
الجزء والصفحة:
2th pp .11
23-11-2015
1441
CRUDE OILS
Crude oil (petroleum) is a naturally occurring brown to black flammable liquid. Crude oils are principally found in oil reservoirs associated with sedimentary rocks beneath the earth’s surface. Although exactly how crude oils originated is not established, it is generally agreed that crude oils derived from marine animal and plant debris subjected to high temperatures and pressures. It is also suspected that the transformation may have been catalyzed by rock constituents. Regardless of their origins, all crude oils are mainly constituted of hydrocarbons mixed with variable amounts of sulfur, nitrogen, and oxygen compounds.
