Catalytic decomposition of biomass tar compound by calcined coal gangue: A kinetic study
Catalytic decomposition of biomass tar compound by calcined coal gangue: A kinetic study
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煅烧煤矸石催化分解生物质焦油化合物的动力学研究
DOI：
10.1016/j.ijhydene.2016.05.126
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发表时间：
2016-08-17
影响因子：
7.2
通讯作者：
Dong, Lei
中科院分区：
文献类型：
--
作者：
Guo, Feiqiang;Dong, Yuping;Dong, Lei
采用二级微流化床反应器，以苯酚为模型化合物，研究了等温条件下生物质焦油的热分解动力学。以煅烧的煤矸石和γ - al2o3为催化剂，特别是煤矸石是劣质煤热转化制备的一种焦油分解催化剂。采用Friedman法和积分法测定了苯酚分解生成H-2和CO的动力学参数。结果表明，与CO相比，生成H-2的活化能更低，表明生成H-2的反应更容易在苯酚分解中发生。以脉石为催化剂生成H-2和CO的活化能较高，说明由于脉石中SiO2含量较高，导致脉石对苯酚分解过程的催化性能略低。(C) 2016氢能源出版有限责任公司，由爱思唯尔有限公司出版。版权所有。
The kinetics of thermal decomposition of biomass tar was studied using phenol as a model compound under isothermal conditions by a two stage micro fluidized bed reactor. Calcined coal gangue and gamma-Al2O3 were employed as catalyst, particularly gangue representing one type of catalyst for tar decomposition that prepared by the thermal conversion of inferior coal. The Friedman method and integral method were employed for the determination of kinetic parameters for forming H-2 and CO by phenol decomposition. The results demonstrated that the activation energy for generating H-2 was lower compared with CO, indicating that the reactions for forming H-2 was easier in phenol decomposition. Higher activation energies for H-2 and CO generating were obtained using gangue as catalyst, implying that the catalytic performance gangue was slightly lower toward phenol decomposition process due to the high content of SiO2 in gangue. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.