Department of Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA.
Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA.
Bioresour Technol. 2019 Jul;284:466-473. doi: 10.1016/j.biortech.2019.03.049. Epub 2019 Mar 15.
Solar pyrolysis of agricultural waste has huge potential for sustainable production of fuel and chemical feedstock. In this paper, the kinetics, thermodynamics, and physical characterization of corn stover (CS) collected from Wyoming, USA was conducted with respect to solar pyrolysis. The kinetics and thermodynamics of the CS pyrolysis was analyzed in detail using the methods described by KAS (Kissinger-Akahira-Sunose) and FWO (Flynn-Wall-Ozawa), from which the activation energy, Gibbs energy, Arrhenius pre-exponential factor, enthalpy, and entropy were derived.14 other kinetics models based on reaction order, diffusion, nucleation, geometric contraction, power models were also examined, and models based on diffusion was found to be best suited. The CS was used for solar pyrolysis of biomass and the products were analyzed by mass spectroscopy, ICP-MS, GPC, micro-GC, and Elemental analyzer. The results show that CS is suitable for solar pyrolysis to produce chemicals and other fuels.
农业废弃物的太阳能热解在可持续生产燃料和化学原料方面具有巨大的潜力。本文针对美国怀俄明州收集的玉米秸秆（CS）的太阳能热解进行了动力学、热力学和物理特性研究。使用 Kissinger-Akahira-Sunose（KAS）和 Flynn-Wall-Ozawa（FWO）方法详细分析了 CS 热解的动力学和热力学，从中得出了活化能、吉布斯自由能、阿仑尼乌斯指数前因子、焓和熵。还研究了基于反应级数、扩散、成核、几何收缩、幂函数模型的 14 种其他动力学模型，发现基于扩散的模型最适合。CS 被用于生物质的太阳能热解，通过质谱、ICP-MS、GPC、微 GC 和元素分析对产物进行了分析。结果表明，CS 适合于太阳能热解生产化学品和其他燃料。
