| 摘要 |
Calcium carbonate (e.g. in the form of limestone or marble) is heated at or above 850 DEG C to break it down into carbon dioxide and calcium oxide, and these products of decomposition are reacted with appropriate amounts of carbon and water at a higher temperature of up to 1000 DEG C to produce a mixture of carbon monoxide, hydrogen, aliphatic hydrocarbon (principally methane), and calcium carbide, preferably according to the equation: CaCO3+12C+6H2O= 9CO+2H2+2H2+2CH4+CaC2 |
