The lime industry is a significant carbon dioxide emitter. The manufacture of one tonne of calcium oxide involves decomposing calcium carbonate, with the formation of 785 kg of CO2 in some applications, such as when used as mortar; this CO2 is later re-adsorbed as the mortar goes off. Additionally, if the heat supplied to form the lime (3.75 MJ/kg in an efficient kiln) is obtained by burning fossil fuel it will release CO2: in the case of coal fuel 295 kg/t; in the case of natural gas fuel 206 kg/t. The electric power consumption of an efficient plant is around 20 kWh per tonne of lime. This additional input is the equivalent of around 20 kg CO2 per ton if the electricity is coal-generated. Thus, total emission may be around 1 tonne of CO2 for every tonne of lime even in efficient industrial plants, but is typically 1.3 t/t.However, if the source of heat energy used in its manufacture is a fully renewable source, such as solar, wind, hydro or even nuclear, and depending on the ultimate use of the lime there may be no net emission of CO2. Less energy is required in production per weight than portland cement, primarily because a lower temperature is required.
Burned lime fuel very extensive, solid fuels, fuel gas, liquid fuel, but new technology of kiln, which fuel combustion principle is the most economic, which fuel is more advantageous to the environmental protection, which can save energy more fuel is a new technology of kiln key. Henan Hongxing Mining Machinery Co., Ltd is a large-sized peripheral driving thickener, mineral feeding machine manufacturer, and the mining equipment we researched and developed with great concentration plays an active role in the mining and ore beneficiation industry and is one of the indispensable mining crushing equipment in the mining industry.
Now using the universal mainly coke and coal gas. The new technology is the most ideal or gas, including blast furnace gas, converter gas, coke oven gas, calcium.