Petrol

Petrol

a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. A fossil fuel, it is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and undergo intense heat and pressure.

Industry: Energy

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Petrol

Directional (deviated) well

Energy; Coal

A well purposely deviated from the vertical, using controlled angles to reach an objective location other than directly below the surface location. A directional well may be the original hole or a ...

Coal fines

Energy; Coal

Coal with a maximum particle size usually less than one-sixteenth inch and rarely above one-eighth inch.

Discharged fuel

Energy; Coal

Irradiated fuel removed from anuclear reactor during refueling. Also see Spent Fuel.

Coal gas

Energy; Coal

Substitute natural gas produced synthetically by the chemical reduction of coal at a coal gasification facility.

Discrete-delivery energy sources

Energy; Coal

Energy sources that must be delivered to a site.

Coal gasification

Energy; Coal

The process of converting coal into gas. The basic process involves crushing coal to a powder, which is then heated in the presence of steam and oxygen to produce a gas. The gas is then refined to ...

Dispatching

Energy; Coal

The operating control of an integrated electric system involving operations such as (1) the assignment of load to specific generating stations and other sources of supply to effect the most ...