School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong 255049, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, Shandong 255049, China.
School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong 255049, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, Shandong 255049, China.
Bioresour Technol. 2016 Oct;218:731-6. doi: 10.1016/j.biortech.2016.07.025. Epub 2016 Jul 8.
A new thermo-chemical pretreatment by a lower temperature fast pyrolysis (LTFP) was applied to promote anaerobic digestion (AD) efficiency of corn stover (CS). The pretreatment experiment was performed by a fluidized bed pyrolysis reactor at 180, 200 and 220°C with a carrier gas flow rate of 4 and 3m(3)/h. The components characteristics, Scanning Electron Microscope (SEM) images and Crystal Intensity (CrI) of the pretreated CS were tested to explore effectiveness of the pretreatment. The results showed that the cumulative methane production at 180°C for 4 and 3m(3)/h were 199.8 and 200.3mL/g TS, respectively. As compared to the untreated CS, the LTFP pretreatment significantly (a<0.05) increased the methane production by 18.07% and 18.33%, respectively. Methane production was well fitted by the Gompertz models, and the maximum methane potential and AD efficiency was obtained at 180°C for 3m(3)/h.
采用较低温度快速热解（LTFP）的新热化学预处理方法，以提高玉米秸秆（CS）的厌氧消化（AD）效率。预处理实验在载气流速为 4 和 3m(3)/h 的流化床热解反应器中于 180、200 和 220°C 下进行。对预处理 CS 的成分特性、扫描电子显微镜（SEM）图像和结晶度（CrI）进行了测试，以探讨预处理的效果。结果表明，在 180°C 下，载气流速为 4 和 3m(3)/h 时的累积甲烷产量分别为 199.8 和 200.3mL/g TS。与未处理的 CS 相比，LTFP 预处理分别显著（a<0.05）提高了 18.07%和 18.33%的甲烷产量。甲烷产量很好地符合 Gompertz 模型，在 3m(3)/h 下于 180°C 时获得了最大的甲烷潜力和 AD 效率。
