Process simulation development of fast pyrolysis of wood using aspen plus
Process simulation development of fast pyrolysis of wood using aspen plus
复制标题
利用aspen plus进行木材快速热解过程模拟开发
DOI：
10.1021/ef502023y
复制
发表时间：
2015
期刊：
影响因子：
5.3
通讯作者：
J. Lehto
中科院分区：
文献类型：
--
作者：
K. Onarheim;Y. Solantausta;J. Lehto
开发了一个稳态Aspen Plus模拟模型，该模型为工业流态化快速热解生产生物油过程提供了估算的质量和能量平衡。该工具可用于评估使用不同原料的不同工艺条件下的工厂性能。利用两种不同的原料类型(松木和林木残渣)模拟了一座30 MW低热值生物油工厂。快速热解产物产率是原料灰分的函数，并根据0.5t/d快速热解试验装置的数据进行了计算。液相计算采用UNIQUAC活度系数法，气相计算采用理想气体逸度系数法。用0.5t/d实验装置的实验数据对快速热解蒸汽冷凝过程的模型进行了验证。对这两个概念的生产成本进行了估算。结果表明，松基快速热解工艺具有良好的应用前景。
A steady-state Aspen Plus simulation model has been developed that provides estimated mass and energy balances for an industrial fluidizing-bed fast pyrolysis process to produce bio-oil. The tool can be used to assess plant performance under varying process conditions using different feedstocks. A 30 MW lower heating value (LHV) bio-oil plant was modeled utilizing two different feedstock types (pine and forest residues). The fast pyrolysis product yields are functions of feedstock ash content and were calculated on the basis of data generated by a 0.5 t/d fast pyrolysis test unit. The UNIQUAC activity coefficient method was used for the calculation of the liquid phase, and the ideal-gas fugacity coefficient method was used for the vapor-phase calculations. Modeling of the condensation of fast pyrolysis vapors was also verified against experimental data gained from the 0.5 t/d test unit. Production costs were estimated for the two concepts. The results show that the pine-based fast pyrolysis process has be...