producer gas

noun
a gas composed of carbon monoxide, hydrogen, and nitrogen, obtained by passing air and steam through incandescent coke: used as an industrial fuel, in certain gas engines, and in the manufacture of ammonia.
Also called air gas.


Origin:
1890–95

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producer gas
 
n
See also water gas Also called: air gas a mixture of carbon monoxide and nitrogen produced by passing air over hot coke, used mainly as a fuel

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

producer gas

mixture of flammable gases (principally carbon monoxide and hydrogen) and nonflammable gases (mainly nitrogen and carbon dioxide) made by the partial combustion of carbonaceous substances, usually coal, in an atmosphere of air and steam. Producer gas has lower heating value than other gaseous fuels, but it can be manufactured with relatively simple equipment; it is used mainly as a fuel in large industrial furnaces.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The producer gas can be cleaned and filtered to remove problem chemical
  compounds.
The main objective of these studies have been to improve the process for
  production of water gas or producer gas.
The producer gas is washed in a scrubbing cooler and saturator and is then
  available for the gas turbine process.
The producer gas production rate will be determined.
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