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首页> 外文期刊>Journal of Analytical & Applied Pyrolysis >Energy recovery analysis from sugar cane bagasse pyrolysis and gasification using thermogravimetry, mass spectrometry and kinetic models
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Energy recovery analysis from sugar cane bagasse pyrolysis and gasification using thermogravimetry, mass spectrometry and kinetic models

机译：使用热重试剂，质谱和动力学模型的甘蔗甘蔗渣热解和气化能量回收分析

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摘要

The energy recovery from biomass and it's utilisation as fuels and chemicals has been gaining interest in recent years. The production of syngas from sugarcane pyrolysis and gasification is investigated. Pyrolysis studies of sugarcane bagasse are performed using thermogravimetry (TG) at different heating rates (10, 20, 40, 100, 250 K/min). A mass spectrometry (MS) coupled with TG is used to detect the evolved gases. The effect of pyrolysis heating rate on char yield and evolved gases are examined. The resultant char Is gasified in steam ambience under isothermal and non -isothermal conditions. The results are shown that sugarcane pyrolysis, char-gasification and gas release (H-2, H2O, CO, CO2 and hydrocarbons) processes are influenced by the heating rate. Char gasification kinetics are estimated using volumetric, grain and random pore models under isothermal conditions. Similarly, sugarcane bagasse pyrolysis and gasification kinetics under non-isothermal conditions in steam and air ambience is estimated using Friedman, KAS (Kissinger-Akahira-Sunose) and FWO (Flynn-Wall-Ozawa) methods for all the mass conversion levels. The activation energy of steam gasification is more than twice when compared to air gasification (partial oxidation) process while using FWO and KAS methods Altogether, these results contribute to better understanding of the sugarcane bagasse pyrolysis and gasification features for gasifier process modeling.
机译：近年来，生物质的能量回收和其利用的利用是兴趣。研究了来自甘蔗热解和气化的合成气的产生。使用不同加热速率（10,20,40,100,250k / min）的热重法测定（Tg）进行甘蔗囊的热解性研究。与Tg耦合的质谱仪（MS）用于检测进化的气体。检查了热解加热速率对炭产率和进化气体的影响。在等温和非吸收条件下，所得炭在蒸汽氛围中气化。结果表明，甘蔗热解，炭气化和气体释放（H-2，H 2 O，CO，CO 2和烃类）方法受加热速率的影响。在等温条件下使用体积，谷物和随机孔模型估计Char气化动力学。类似地，使用弗里德曼，Kas（Kissinger-Akahira-Sunose）和FWO（Flynn-Wall-Ozawa）方法来估计所有肿块转化水平的甘蔗和空气氛围中的非等温条件下的甘蔗Bagasse热解和气化动力学。与空气气化（部分氧化）工艺相比，蒸汽气化的激活能量在使用FWO和KAS方法的同时，这些结果有助于更好地理解气化器工艺造型的甘蔗甘蔗蛋白热解和气化特征。

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