Thermal self-sustainability of biochar production by pyrolysis
Thermal self-sustainability of biochar production by pyrolysis
复制标题
热解生产生物炭的热自可持续性
DOI：
10.1016/j.jaap.2011.01.001
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发表时间：
2011
影响因子：
6
通讯作者：
F. Berruti
中科院分区：
文献类型：
--
作者：
R. Xu;L. Ferrante;K. Hall;C. Briens;F. Berruti
几种农业和生物燃料生产残留物的热解在300 - 600°C的温度范围和两个蒸汽停留时间下，在中试鼓泡流化床热解器中进行了葡萄渣、甘蔗渣、干酒糟、棕榈油渣、苹果渣和林业渣的热解（2和5s），目的是确定它们的热解行为，包括产物产率和热平衡。测定产物气体的组成，由此计算其热值。用旋风冷凝器回收液体生物油。通过考虑产物气体和液体生物油相对于热解热需求的能量贡献来估计热解过程的热可持续性。确定了可持续生产生物炭最有前途的生物质原料。此外，本研究提出了与通过燃烧生物炭生产的气体和生物油副产品可以获得的过量热量有关的炭产率，作为热解温度和蒸气停留时间的函数。
The pyrolysis of several agricultural and biofuel production residues (grape residues, sugarcane residues, dried distiller's grain, palm oil residues, apple pomace and forestry residue) has been carried out in a pilot bubbling fluidized bed pyrolyzer operating under a range of temperature from 300 to 600°C and two vapor residence times (2 and 5s), with the aim of determining their pyrolysis behavior including products yields and heat balance. The composition of the product gases was determined, from which their heating value was calculated. The liquid bio-oil was recovered with cyclonic condensers. The thermal sustainability of the pyrolysis process was estimated by considering the energy contribution of the product gases and of the liquid bio-oil in relation to the pyrolysis heat requirements. The most promising biomass feedstocks for the sustainable production of biochar were indentified. Furthermore, this study presented the char yield in relation to the excess heat that could be obtained by combusting the gas and bio-oil coproducts of biochar production, as functions of pyrolysis temperature and vapor residence time.