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首页> 外文期刊>Journal of environmental science and health, Part A. Toxic/hazardous substances & environmental engineering >Auxiliary effect of CO_2 on pyrolysis of oily sludge
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Auxiliary effect of CO_2 on pyrolysis of oily sludge

机译：Auxiliary effect of CO_2 on pyrolysis of oily sludge

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摘要

The efficient recovery and conversion of energy in oily sludge has great prospects. In this article, the main objective is to investigate the impact of the addition of CO_2 during the pyrolysis of oily sludge on energy recovery and conversion by thermogravimetric analysis (TGA) and compare the effect with the traditional pyrolysis effect from the perspective of thermal conversion behavior, products composition, and kinetics analysis. The results of the experiment showed that in the CO_2 atmosphere, the main weight loss temperature of oily sludge was mainly concentrated in the range of 300-500 ℃, which is lower than the reaction temperature range of traditional pyrolysis. The yields of CO and H_2 in the products have been greatly improved, and the highest proportion in the gas products can reach 19.29% and 22.38%, respectively. The E_a (activation energy) values of oily sludge were determined to be in the range of 40-120kJ·mol~1 with the conversion between 0.2 and 0.8 via DAEM, KAS, Starink, and FWO methods, respectively, in which the FWO method has shown the strongest adaptability. The results of this study provide reference values for practical engineering applications.

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