Question

what is producer gas?

Answer 1

Producer gas

Producer gas is fuel gas that is manufactured from material such as coal, as opposed tonatural gas. It can be produced from various fuels by partial combustion with air, usually modified by simultaneous injection of water or steam to maintain a constant temperature and obtain a higher heat content gas by enrichment of air gas with hydrogen. In this respect it is similar to other types of "manufactured" gas, such as coal gas, coke oven gas, water gas and carburetted water gas. Producer gas was used primarily as an industrial fuel for iron and steel manufacturing, such as firing coke ovens and blast furnaces, cement and ceramic kilns, or for mechanical power through gas engines. It was characteristically low in heating value but cheap to make, so that large amounts could be made and burnt.

In the USA, producer gas may be wood gasproduced in a gasifier and used to fire kilns and has been used to power cars and boats[1],town gas, originally produced from coal, for sale to consumers, and syngas, used as a fuel source or as an intermediate for the production of other chemicals.

In the UK, producer gas, also known assuction gas, means a fuel gas made fromcoke, or other carbonaceous material[2] such as anthracite. Air is passed over the red-hot carbonaceous fuel and carbon monoxide is produced. The reaction is exothermic and proceeds as follows:

Formation of producer gas from air and carbon:

C + O2 → CO2, +97,600 caloriesCO2 + C → 2CO, -38,800 calories2C + O2 → 2CO, +58,800 calories

Reactions between steam and carbon:

H20+C → H2+CO, -28,800 calories2H20+C → 2H2+CO2, -18,800 "

Reaction between steam and carbon monoxide:

H2O + CO → CO2 + H2, + 10,000 caloriesCO2 + H2 → CO +H2O, -10,000 calories

The average composition of ordinary producer gas according to Latta was: CO2: 5.8%; O2: 1.3%; CO: 19.8%; H2: 15.1%; CH4: 1.3%; N2: 56.7%; B.T.U. gross per cu.ft 136 The concentration of carbon monoxide in the "ideal" producer gas was considered to be 34.7% carbon monoxide (carbonic oxide) and 65.3% nitrogen.After "scrubbing", to removetar, the gas may be used to power gas turbines (which are well-suited to fuels of low calorific value), spark ignited engines (where 100% petrol fuel replacement is possible) or diesel internal combustion engines (where 15% to 40% of the original diesel fuel requirement is still used to ignite the gas ). During World War II in Britain, plants were built in the form of trailers for towing behind commercial vehicles, especially buses, to supply gas as a replacement for petrol (gasoline) fuel.A range of about 80 miles for every charge of anthracite was achieved

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Answer 2

-Producer gas is a combustible gas manufactured by blowing a mixture of steam and air upwards through a bed of hot coke used in our homes and industries.