Afyon Kocatepe University, Afyonkarahisar, Turkey.
Waste Manag Res. 2019 Sep;37(9):925-933. doi: 10.1177/0734242X19860895. Epub 2019 Jul 18.
In the present study, pyrolysis and co-pyrolysis of sugarcane bagasse, poppy capsule pulp, and rice husk were conducted in a fixed bed reactor at 550⁰C in nitrogen atmosphere. The moisture (5%-8%), ash (4%-17%), volatile matter (60%-76%), and fixed carbon analyses (11%-24%) of the utilized biomass were conducted. The decomposition behavior of biomasses due to the heat effect was investigated by thermogravimetric analysis/differential thermal analysis . In the pyrolysis of biomasses separately, the highest bio-oil yield was obtained with sugarcane bagasse (27.4%). In the co-pyrolysis of the binary blends of biomass, the highest bio-oil yield was obtained with the rice husk and sugarcane bagasse blends. While the mean bio-oil yield obtained with the separate pyrolysis of these two biomasses was 23.9%, it was observed that the bio-oil yield obtained with the co-pyrolysis of biomass blends was 28.4%. This suggested a synergistic interaction between the two biomasses during pyrolysis. It was observed that as the total ash content in the biomasses used in the pyrolysis increased, the bio-oil yield decreased, and the solid product content increased. Characterization studies of bio-oils were conducted by Fourier-transform infrared spectroscopy, gas chromatography-mass spectrometry (GC-MS), and hydrogen-1 nuclear magnetic resonance analyses. Results of these studies revealed that, all bio-oils were mainly composed of aliphatic and oxygenated compounds. The calorific values of bio-oils were determined by calorimeter bomb. Based on the GC-MS, the bio-oils with high fatty acid and its ester content also had high calorific values. The highest calorific value was 29.68 MJ kg, and this was obtained by pyrolysis of poppy capsule and sugarcane bagasse blend.
在本研究中，在氮气气氛下，在 550°C 的固定床反应器中进行了甘蔗渣、罂粟壳浆和稻壳的热解和共热解。对所用生物质的水分（5%-8%）、灰分（4%-17%）、挥发分（60%-76%）和固定碳分析（11%-24%）进行了分析。通过热重分析/差热分析研究了生物质由于热效应而发生的分解行为。在生物质的单独热解中，甘蔗渣获得了最高的生物油产率（27.4%）。在生物质二元混合物的共热解中，稻壳和甘蔗渣混合物获得了最高的生物油产率。而这两种生物质单独热解获得的平均生物油产率为 23.9%，观察到生物质混合物共热解获得的生物油产率为 28.4%。这表明在热解过程中两种生物质之间存在协同相互作用。观察到随着热解中所用生物质的总灰分含量增加，生物油产率降低，固体产物含量增加。通过傅里叶变换红外光谱、气相色谱-质谱（GC-MS）和氢-1 核磁共振分析对生物油进行了表征研究。这些研究的结果表明，所有生物油主要由脂肪族和含氧化合物组成。通过量热计弹测定生物油的热值。基于 GC-MS，脂肪酸及其酯含量高的生物油也具有高热值。最高热值为 29.68MJkg，这是通过罂粟壳和甘蔗渣混合物的热解获得的。
