CPFD simulation on entrained-flow gasifier

被引：0

作者：

Liang Y. ^{[1
]}

Zhao X. ^{[1
]}

Qin Q. ^{[1
]}

Guo C.Y. ^{[1
]}

Cheng Y. ^{[2
]}

机构：

[1] National Institute of Clean-and-Low-Carbon Energy, Beijing

[2] Department of Chemical Engineering, Tsinghua University, Beijing

来源：

Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 09期

关键词：

CPFD simulation; Entrained-flow; Gasification process; Gasifier; Particle residence time;

D O I：

10.11949/0438-1157.20190376

中图分类号：

学科分类号：

摘要：

For the first time, the three-dimensional, full-size entrained flow gasifier was simulated by CPFD(computational particle fluid dynamics) simulation method, and a gasification simulation model suitable for CPFD simulation was established. This validated the model and CPFD simulation used in entrained-flow gasification. The detailed reaction process and the probability distribution of particle residence time were obtained through CPFD simulation. The results show that both particle short-circuit and re-circulation exist in the gasifier using single burner at top. The short-circuit flow is mainly located at the central region of the gasifier. In addition, the particle reaction rate is very fast in the central region but relatively slow near the wall region. Besides, the first amount of particles flowing out of the gasifier mainly consists of the fully-reacted particles. © All Right Reserved.

引用

页码：3291 / 3299

页数：8

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