CFD model of coal pyrolysis in fixed bed reactor
CFD model of coal pyrolysis in fixed bed reactor
复制标题
固定床反应器煤热解CFD模型
DOI：
10.1016/j.ces.2018.12.064
复制
发表时间：
2019-06
影响因子：
4.7
通讯作者：
Liu Xiaoxing
中科院分区：
文献类型：
--
作者：
Qian Yanan;Zhan Jinhui;Yu Yin;Xu Guangwen;Liu Xiaoxing
建立了煤在固定床反应器中热解的三维瞬态模型。该模型考虑了煤热解过程中物理水的蒸发和冷凝、挥发分的释放、热解焦油的二次裂解以及孔隙率的变化等多个方面。模型中考虑了传导、辐射和对流三种传热方式。使用商业CFD软件Fluent中可用的Lee模型（Lee，1980）对物理水的相变进行建模。采用多独立平行反应（MIPR）模型预测挥发性产物的生成。使用Wurzenberger等人（2002）提出的模型描述焦油的二次裂化。该模型在Fluent中实现，并通过模拟低阶次烟煤在四个实验室规模和外部加热的固定床反应器（有或没有内构件）中的热解过程进行验证。煤料温度的预测与实验结果在所有定量协议。模拟结果还成功地捕捉到了内构件对焦油产率的影响。
A three dimensional transient model was developed to simulate the pyrolysis process of coal in fixed bed reactor. The model considered a number of aspects associated with coal pyrolysis such as the evaporation and condensation of physical water, the release of volatiles, secondary cracking of pyrolysis tar and the variation of porosity. Conductive, radiative and convective types of heat transfer were all taken into account in the model. The phase transformation of physical water was modeled using the Lee model (Lee, 1980) available in the commercial CFD software Fluent. The multiple independent parallel reaction (MIPR) model was applied to predict the generations of volatile products. The secondary cracking of tar was described using the model proposed by Wurzenberger et al. (2002). The model was implemented in Fluent and validated through modeling the pyrolysis process of low-rank sub-bituminous coal in four laboratory-scale and externally heated fixed-bed reactors with or without internals. The predicted temperature evolutions of coal charge were in all quantitative agreements with experimental results. And the influences of internals on the yield of tar were also successfully captured by the simulations.
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影响因子：
7.4
作者：
Chun-Zhu Li;K. Bartle;R. Kandiyoti
通讯作者：
Chun-Zhu Li;K. Bartle;R. Kandiyoti
影响因子：
7.4
作者：
H. Jeong;In Sik Hwang;Sang Shin Park;Jungho Hwang
通讯作者：
H. Jeong;In Sik Hwang;Sang Shin Park;Jungho Hwang
影响因子：
7.5
作者：
Somprasong Siramard;Lanxin Lin;Chun Zhang;Dengguo Lai;Shuai Cheng;Guangwen Xu
通讯作者：
Somprasong Siramard;Lanxin Lin;Chun Zhang;Dengguo Lai;Shuai Cheng;Guangwen Xu
DOI：
10.1142/9789814460286_0004
发表时间：
2002
期刊：
--
影响因子：
--
作者：
W. Lee
通讯作者：
W. Lee
影响因子：
5.3
作者：
SOLOMON, PR;HAMBLEN, DG;DESHPANDE, GV
通讯作者：
DESHPANDE, GV