GREATER CALCUTTA GAS SUPPLY CORPORATION LIMITED
(A GOVERNMENT OF WEST BENGAL ENTERPRISE)
(A GOVERNMENT OF WEST BENGAL ENTERPRISE)
COAL GAS
COAL GAS
Coal gas (also known as town gas and illumination gas) is a flammable gaseous fuel made by destructive distillation of coal containing a variety of calorific gases including hydrogen, carbon monoxide, methane and volatile hydrocarbons together with small quantities of non-calorific gases such as carbon dioxide and nitrogen.
GAS COMPOSITION
| H2 | 50.0 – 55.0 % |
| CO | 17.0 – 21.0 % |
| CH4 | 15.0 – 17.0 % |
| CO2 | 5.0 – 9.0 % |
| CnHm | 2.0 – 2.4 % |
| N2 | 2.0 % |
| O2 | 1.0 % |
| NH3 | 0.1 gm / NM3 |
| Tar | 0.1 gm / NM3 |
| H2S | 0.015 gm / NM3 |
| Light Oil | 1 % |
| Moisture | Traces |