What is the composition of water gas
Dear Student Water gas is a mixture of carbon monoxide and hydrogen produced from synthesis gas. Synthesis gas is a useful product, but requires careful handling due to its flammability and the risk of carbon monoxide poisoning.
Water gas is made by passing steam over heated hydrocarbons. The reaction between steam and hydrocarbons produces synthesis gas. The water-gas shift reaction can be used to reduce carbon dioxide levels and enrich hydrogen content, making water gas.
The water-gas shift reaction is:
CO + H2O → CO2 + H2
The principle of water gas production is straightforward. Steam is forced over red-hot or white-hot carbon-based fuel, producing the following reaction:
H2O + C → H2 + CO (ΔH = +131 kJ/mol)
This reaction is endothermic (absorbs heat), so heat must be added to sustain it. There are two ways this is done. One is to alternate between steam and air to cause combustion of some carbon (an exothermic process):
O2 + C → CO2 (ΔH = −393.5 kJ/mol)
The other method is to use oxygen gas rather than air, which yields carbon monoxide rather than carbon dioxide:
O2 + 2 C → 2 CO (ΔH = −221 kJ/mol)
Regards
Water gas is a mixture of carbon monoxide and hydrogen produced from synthesis gas. Synthesis gas is a useful product, but requires careful handling due to its flammability and the risk of carbon monoxide poisoning.
Water gas is made by passing steam over heated hydrocarbons. The reaction between steam and hydrocarbons produces synthesis gas. The water-gas shift reaction can be used to reduce carbon dioxide levels and enrich hydrogen content, making water gas.
The water-gas shift reaction is:
CO + H2O → CO2 + H2
The principle of water gas production is straightforward. Steam is forced over red-hot or white-hot carbon-based fuel, producing the following reaction:
H2O + C → H2 + CO (ΔH = +131 kJ/mol)
This reaction is endothermic (absorbs heat), so heat must be added to sustain it. There are two ways this is done. One is to alternate between steam and air to cause combustion of some carbon (an exothermic process):
O2 + C → CO2 (ΔH = −393.5 kJ/mol)
The other method is to use oxygen gas rather than air, which yields carbon monoxide rather than carbon dioxide:
O2 + 2 C → 2 CO (ΔH = −221 kJ/mol)
Regards
