在不同温度下，催化剂对微波热解污泥中有机物转化和生物燃料生成的影响。
The effects of catalysts on the conversion of organic matter and bio-fuel production in the microwave pyrolysis of sludge at different temperatures.
机构信息
College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
出版信息
Bioresour Technol. 2017 Aug;238:616-623. doi: 10.1016/j.biortech.2017.04.103. Epub 2017 Apr 28.
Adding catalyst could improve the yields and qualities of bio-gas and bio-oil, and realize the oriented production. Results showed that the catalytic gas-production capacities of CaO were higher than those of FeO, and the bio-gas yield at 800°C reached a maximum of 35.1%. Because the polar cracking active sites of CaO reduced the activation energy of the pyrolysis reaction and resulted in high catalytic cracking efficiencies. In addition, the quality of bio-oil produced by CaO was superior to that by FeO, although the bio-oil yield of CaO was relatively weak. The light bio-fuel oriented catalytic pyrolysis could be realized when adding different catalysts. At 800°C, CaO was 45% higher than FeO in aspect of H production while FeO was 103% higher than CaO in aspect of CH production. Therefore, CaO was more suitable for H production and FeO was more suitable for CH production.
添加催化剂可以提高生物气和生物油的产量和质量，并实现定向生产。结果表明，CaO 的催化产气能力高于 FeO，在 800°C 时生物气的产率达到了 35.1%的最大值。因为 CaO 的极性裂解活性位降低了热解反应的活化能，从而导致了高的催化裂解效率。此外，尽管 CaO 的生物油产率相对较弱，但由 CaO 产生的生物油的质量优于由 FeO 产生的生物油。当添加不同的催化剂时，可以实现轻生物燃料定向催化热解。在 800°C 时，CaO 在 H 生成方面比 FeO 高 45%，而 FeO 在 CH 生成方面比 CaO 高 103%。因此，CaO 更适合 H 生成，而 FeO 更适合 CH 生成。
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