热解动力学：在非等温和等温条件下，炼焦煤与生物质混合。
Pyrolysis kinetics of coking coal mixed with biomass under non-isothermal and isothermal conditions.
机构信息
Department of Chemical Engineering, Chungbuk National University, 52 Naesudong-ro, Heungdeok-gu, Cheong ju 361-763, Republic of Korea.
Clean Fuel Laboratory, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea.
出版信息
Bioresour Technol. 2014 Mar;155:442-5. doi: 10.1016/j.biortech.2014.01.005. Epub 2014 Jan 10.
To investigate the kinetic characteristics of coking coal mixed with biomass during pyrolysis, thermogravimetric (TG) and thermo-balance reactor (TBR) analyses were conducted under non-isothermal and isothermal condition. Yellow poplar as a biomass (B) was mixed with weak coking coal (WC) and hard coking coal (HC), respectively. The calculated activation energies of WC/B blends were higher than those of HC/B blends under non-isothermal and isothermal conditions. The coal/biomass blends show increased reactivity and decreased activation energy with increasing biomass blend ratio, regardless of the coking properties of the coal. The different char structures of the WC/B and HC/B blends were analyzed by BET and SEM.
为了研究炼焦煤与生物质共热解过程中的动力学特性，采用热重（TG）和热平衡反应器（TBR）分析，在非等温及等温条件下进行实验。选取杨木作为生物质（B），分别与弱黏结性炼焦煤（WC）和强黏结性炼焦煤（HC）进行共混。在非等温及等温条件下，WC/B 共混物的计算活化能均高于 HC/B 共混物。不论煤的结焦性能如何，随着生物质共混比例的增加，煤/生物质共混物的反应活性增加，活化能降低。通过 BET 和 SEM 分析了 WC/B 和 HC/B 共混物的不同焦结构。
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