explain synthesis gas and producer gas . write the chemical equation involved in this process
Answers
Synthesis gas (syngas) A gas mixture that contains varying amounts of carbon monoxide
(CO) and hydrogen (H2) generated by the gasification of a carbon-
containing material to a gaseous product with a heating value (but
less than half the energy density of natural gas). When used as a
fuel, it is produced by gasification of coal or municipal waste by the
following reactions: C + O2 → CO2; CO2 + C → 2CO; C + H2O → CO
+ H2. The name comes from the gas's use as an intermediate in
creating synthetic hetic natural gas (SNG) and in producing ammonia or methanol.
Producer gas A gas mixture containing carbon monoxide (CO), hydrogen (H2),
carbon dioxide (CO2) and nitrogen (N2). In the USA, producer gas
is a generic term referring to wood gas, town gas, synthesis gas,
syngas or raw gas. In the UK, producer gas, also known as suction
gas, means a fuel gas made from coke or other carbonaceous
material. Air is passed over the red-hot fuel and carbon monoxide
is produced in an exothermic reaction which reads 2C + O2 → 2CO.
The nitrogen in the air remains unchanged and dilutes the gas,
so it has a low calorific value. The gas may be used to power gas
turbines which are suited to fuels of low calorific value.
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Synthesis gas (syngas) A gas mixture that contains varying amounts of carbon monoxide
(CO) and hydrogen (H2) generated by the gasification of a carbon-
containing material to a gaseous product with a heating value (but
less than half the energy density of natural gas). When used as a
fuel, it is produced by gasification of coal or municipal waste by the
following reactions: C + O2 → CO2; CO2 + C → 2CO; C + H2O → CO
+ H2. The name comes from the gas's use as an intermediate in
creating synthetic hetic natural gas (SNG) and in producing ammonia or methanol.
Producer gas A gas mixture containing carbon monoxide (CO), hydrogen (H2),
carbon dioxide (CO2) and nitrogen (N2). In the USA, producer gas
is a generic term referring to wood gas, town gas, synthesis gas,
syngas or raw gas. In the UK, producer gas, also known as suction
gas, means a fuel gas made from coke or other carbonaceous
material. Air is passed over the red-hot fuel and carbon monoxide
is produced in an exothermic reaction which reads 2C + O2 → 2CO.
The nitrogen in the air remains unchanged and dilutes the gas,
so it has a low calorific value. The gas may be used to power gas
turbines which are suited to fuels of low calorific value.