Definitions for oil shale
This page provides all possible meanings and translations of the word oil shale
Random House Webster's College Dictionary
a black or dark-brown shale or siltstone rich in bitumens, from which shale oil is obtained.
Origin of oil shale:
shale from which oil can be obtained by heating
a dark-brown or black shale, from which petroleum-like hydrocarbons can be produced by distillation
Oil shale, also known as kerogen shale, is an organic-rich fine-grained sedimentary rock containing kerogen from which liquid hydrocarbons called shale oil can be produced. Shale oil is a substitute for conventional crude oil; however, extracting shale oil from oil shale is more costly than the production of conventional crude oil both financially and in terms of its environmental impact. Deposits of oil shale occur around the world, including major deposits in the United States. Estimates of global deposits range from 2.8 to 3.3 trillion barrels of recoverable oil. Heating oil shale to a sufficiently high temperature causes the chemical process of pyrolysis to yield a vapor. Upon cooling the vapor, the liquid shale oil—an unconventional oil—is separated from combustible oil-shale gas. Oil shale can also be burnt directly in furnaces as a low-grade fuel for power generation and district heating or used as a raw material in chemical and construction-materials processing.
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