HTW加压流化床煤气化模拟

doi:10.12096/j.2096-4528.pgt.2018.064

发电技术 ›› 2018, Vol. 39 ›› Issue (5): 419-424.DOI: 10.12096/j.2096-4528.pgt.2018.064

HTW加压流化床煤气化模拟

赵创(),汪大千,杨海平,王贤华,张世红,陈汉平

煤燃烧国家重点实验室(华中科技大学), 湖北省武汉市 430074

收稿日期:2018-08-15 出版日期:2018-10-30 发布日期:2018-10-29
作者简介:赵创(1997),男,硕士研究生,主要研究方向为高温高压煤气化技术、Aspen Plus模拟等, zhao_chuang@hust.edu.cn
基金资助:
国家重点研发计划项目(2017YFB0602701-02)

Simulated of HTW Pressurized Fluidized Bed Gasifier

Chuang ZHAO(),Daqian WANG,Haiping YANG,Xianhua WANG,Shihong ZHANG,Hanping CHEN

State Key Laboratory of Coal Combustion(Huazhong University of Science & Technology), Wuhan 430074, Hubei Province, China

Received:2018-08-15 Published:2018-10-30 Online:2018-10-29
Supported by:
National Key Research and Development Plan of China(2017YFB0602701-02)

摘要/Abstract

摘要：

为深入了解高温温克勒（high-temperature Winkler，HTW）加压流化床煤气化过程，采用Aspen Plus构建相应模型，以氧煤比和蒸汽煤比为变量，对HTW加压流化床气化炉的气化气成分、热值、气体产率和冷煤气效率进行了模拟。模拟结果表明，随着氧煤比的增加，出口温度升高，CO含量增加，H₂含量先增加然后略有减小，CO₂和CH₄的含量降低，气体产率增加，气体热值下降，冷煤气效率下降。HTW加压流化床气化炉的常见运行温度为1 050℃，在此工况下的氧煤比大约为0.71，而水蒸气煤比对HTW加压流化床气化炉的运行性能影响较小。模拟结果对HTW加压流化床煤气化技术的深入研究与实际设计具有指导意义。

关键词: HTW加压流化床, Aspen Plus, 煤气化

Abstract:

To have a better understanding about coal gasification process in HTW pressurized fluidized bed, the model was developed using process simulation software Aspen Plus. Gas composition, low heating value(LHV), gas yield and cold gas efficiency were simulated with the change in the oxygen/coal ratio and steam/coal ratio. The results show that with the oxygen/coal ratio increaseing, outlet temperature decreases, the yield of CO increases, H₂ first increases and then decreases slightly, CO and CH₄ decreases, gas yield increases, LHV decreases, cold gas efficiency decreases. The usual operating temperature of high-temperature Winkler(HTW) pressurized fluidized bed gasifier is about 1050℃, and the corresponding oxygen/coal ratio is 0.71. The steam/coal ratio less affects the operating performance of HTW pressurized fluidized bed gasifier. The result of the simulation was meaningful for the following research about coal gasification process in HTW pressurized fluidized bed and the design of the gasifier.

Key words: HTW pressurized fluidized gasifier, Aspen Plus, coal gasification

赵创,汪大千,杨海平,王贤华,张世红,陈汉平. HTW加压流化床煤气化模拟[J]. 发电技术, 2018, 39(5): 419-424.

Chuang ZHAO,Daqian WANG,Haiping YANG,Xianhua WANG,Shihong ZHANG,Hanping CHEN. Simulated of HTW Pressurized Fluidized Bed Gasifier[J]. Power Generation Technology, 2018, 39(5): 419-424.

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HTW加压流化床煤气化模拟

Simulated of HTW Pressurized Fluidized Bed Gasifier

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