Chaiwei - Model CW-400GFL - Semi-Coke Gas Generator Set
From Coal Oven Gas Generator Set
Semi-coke is made from smokeless coal in low temperature and dry distillation kiln, its technology is similar to coal gas gasifier, just the output product is different with different heating temperature. In the producing process of Semi-coke ,a great amount of exhaust gas is produced, its main contents is CO, about 600-700M3 semi-coke gas is produced from 1T semi-coke in low temperature and dry distillation klin, and the heat value of coal gas is about 1900kcal, which can meet the requirement of generating power. The main composition of coal gas which produced by current internal heating type of semi-coke furnace is N2(about 50%), others are H2,CO,CO2 and CH4. Because there are many useless compositions in semi-coke gas, and the heat value is low (1800-2000kcal), all these limit its range of application and a great quantity of semi-coke gas are evacuated or burned.
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Requirements for coal gas genset
- Coal gas temperature ≤40℃
- Pressure of coal producer gas :3-10kpa,rate of pressure change≤1kpa/min
- H2S≤200mg/Nm3
- NH3≤20 mg/Nm3
- Tar content≤50 mg/Nm3
- Inpurity particle size≤5um ,Impurity content≤30mg/Nm3
- Moisture content≤40 mg/Nm3
- Gas heat value≥4.2MJ/Nm3
Remarked: If fuel gas contains higher quantity of sulfur and ammonia ,it not only corrodes the pole of spark plug seriously, but also increases the acid value which corrodes internal parts of genset and corrodes the genset with precipitates.
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