| 摘要 |
PURPOSE:To prepare an oil of high added value in a low-cost equipment with a high efficiency, by performing thermal cracking of organic sludge at a relatively low temp. CONSTITUTION:Dehydrated organic sludge is sent from a dehydrated sludge storage tank 11 into a drier 12 for thorough drying and is led into a thermal cracking oven 13 kept at about 150-450 deg.C for thermal cracking to produce a small amt. of incombustible gas and large amts. of oil and char. The incombustible gas is passed through a waste gas disposal process 14, the oil is stored in a storage tank 15 for recovery of energy and the char is led an incinerator 16 and burned into ash for utilization as heat source for the drieer 12 and the thermal cracking oven 13. As compared with conventional method which employs a relatively high temp., the thermal cracking at a relatively low temp. increases yield of oil by more than three times and reduces yield of gas which is incombustible to less than one half.
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