Question

Question 4

Define the following gases.

1. Coal gas

2. Water-gas

3. Biogas

Answer 1

1. Coal gas is a mixture of gases mainly hydrogen, methane, and carbon monoxide—formed by the destructive distillation

2. Water gas is a gaseous mixture of carbon monoxide and hydrogen. It is made by passing steam over incandescent coke at a temperature of 1000°C.

3. Biogas is a mixture of gases, primarily consisting of methane and carbon dioxide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste