基于CPFD方法的流化床生物质气化数值模拟

任喜熙; 陈祁; 杨海平; 张世红; 王贤华; 陈汉平

doi:10.11949/0438-1157.20200613

您当前的位置：

首页 >

文章列表页 >

基于CPFD方法的流化床生物质气化数值模拟

能源和环境工程 | 更新时间：2026-07-24

- 基于CPFD方法的流化床生物质气化数值模拟
- Numerical simulation of 3D fluidized bed biomass gasification based on CPFD
- 化工学报 2020年71卷第12期页码：5763-5773
- 作者机构：
  
  华中科技大学煤燃烧国家重点实验室，湖北武汉 430074
- 作者简介：
  
  任喜熙（1994—），男，硕士研究生，renxixi1994@qq.com
  陈汉平（1962—），男，教授，fbghust@163.com
- 基金信息：
  
  国家重点研发计划项目(2019YFB1503901);国家自然科学基金项目(52076100)
- DOI：10.11949/0438-1157.20200613
  中图分类号： TK 6
- 收稿：2020-05-19，
  
  修回：2020-07-27，
  
  网络首发：2020-12-17，
  
  纸质出版：2020-12-05
- 稿件说明：
移动端阅览
任喜熙, 陈祁, 杨海平, 张世红, 王贤华, 陈汉平. 基于CPFD方法的流化床生物质气化数值模拟[J]. 化工学报, 2020, 71(12): 5763-5773

REN Xixi, CHEN Qi, YANG Haiping, ZHANG Shihong, WANG Xianhua, CHEN Hanping. Numerical simulation of 3D fluidized bed biomass gasification based on CPFD[J]. CIESC Journal, 2020, 71(12): 5763-5773
任喜熙, 陈祁, 杨海平, 张世红, 王贤华, 陈汉平. 基于CPFD方法的流化床生物质气化数值模拟[J]. 化工学报, 2020, 71(12): 5763-5773 DOI： 10.11949/0438-1157.20200613.

REN Xixi, CHEN Qi, YANG Haiping, ZHANG Shihong, WANG Xianhua, CHEN Hanping. Numerical simulation of 3D fluidized bed biomass gasification based on CPFD[J]. CIESC Journal, 2020, 71(12): 5763-5773 DOI： 10.11949/0438-1157.20200613.

摘要

基于计算颗粒流体动力学（CPFD）建立了三维鼓泡流化床水蒸气-空气混合气化的数值模型，并进行了模型验证，结果表明模拟和实验具有良好的一致性。在该模型的基础上，研究了气化炉内气体分布以及温度分布；同时探究了生物质属性（颗粒粒径、含水率、种类）以及操作条件（气化温度、床料高度）对气化特性的影响。结果表明，生物质颗粒粒径对气化性能的影响存在一个最优值，平均粒径为0.6 mm是最佳的；较高的含水率会降低可燃气体产量，不利于气化反应的进行；四种生物质中，锯末气化的效率最高、可燃气体产量最大、气体热值最高，稻壳仅次于锯末但其碳转化率高于锯末；提高气化温度可以增加可燃气体的比例、提高气化效率；而初始床层高度的变化可以改变H

/CO的比例。本实验为生物质水蒸气/空气气化提供了理论参考，有助于生物质原料的选取和处理，也有助于气化炉的放大和优化。

Abstract

Based on computational particle fluid dynamics (CPFD)

a three-dimensional bubbling fluidized bed st

eam-air mixed gasification numerical model was established

and it was verified with experiment trials. The results show that the simulation and experiment have good consistency. Based on the model

the gas distribution and temperature distribution in the gasifier were studied; meanwhile

the biomass properties (particle size

water content

types) and operating conditions (gasification temperature

bed height) were investigated. The results show that there is an optimal value for the impact of biomass particle size on gasification performance

with an average particle size of 0.6 mm being the best; a higher water content will reduce the output of combustible gas and is not conducive to the gasification reaction. Among the four types of biomass

sawdust gasification has the highest efficiency

the largest combustible gas production

and the highest gas calorific value. Rice husk is second only to sawdust but its carbon conversion rate is higher than that of sawdust; increasing the gasification temperature can increase the proportion of combustible gas and increase gasification efficiency; while the change of initial bed height can change the ratio of H

/CO. This experiment provides a theoretical reference for biomass steam/air gasification

which is helpful for the selection and processing of biomass raw materials

and also facilitates the amplification and optimization of the gasifier.

关键词

Keywords

references

Cheng Y, Thow Z, Wang C H. Biomass gasification with CO2 in a fluidized bed[J ] . Powder Technology, 2016, 296 : 87-101.

虞君武, 何榕, 张衍国. 鼓泡流化床中生物质气化的数值模拟[J]. 燃烧科学与技术, 2014, (6): 471-477.

Yu J W, He R, Zhang Y G. Numerical simulation of biomass gasification in bubbling fluidized bed[J]. Journal of Combustion Science and Technology, 2014, (6): 471-477.

苏德仁, 刘华财, 周肇秋, 等. 生物质流化床氧气-水蒸气气化实验研究[J ] . 燃料化学学报, 2012, 40 (3): 309-314.

Su D R, Liu H C, Zhou Z Q, et al. Experimental study on oxygen-water vaporization of biom ass fluidized bed[J ] . Journal of Fuel Chemistry, 2012, 40 (3): 309-314.

Gerber S, Behrendt F, Oevermann M. An Eulerian modeling approach of wood gasification in a bubbling fluidized bed reactor using char as bed material[J ] . Fuel, 2010, 89 (10): 2903-2917.

Yu X, Blanco P H, Makkawi Y, et al. CFD and experimental studies on a circulating fluidised bed reactor for biomass gasification[J]. Chemical Engineering and Processing-Process Intensification, 2018(130): 284-295.

Eri Q, Peng J, Zhao X. CFD simulation of biomass steam gasification in a fluidized bed based on a multi-composition multi-step kinetic model[J ] . Applied Thermal Engineering, 2018, 129 : 1358-1368.

Kraft S, Kirnbauer F, Hofbauer H. CPFD simulations of an industrial-sized dual fluidized bed steam gasification system of biomass with 8 MW fuel input[J ] . Applied Energy, 2017, 190 : 408-420.

Radmanesh R, Chaouki J, Guy C. Biomass gasification in a bubbling fluidized bed reactor: experiments and modeling[J ] . AIChE Journal, 2006, 52 (12): 4258-4272.

Shayan E, Zare V, Mirzaee I. Hydrogen production from biomass gasification; a theoretical comparison of using different gasification ag ents[J ] . Energy Conversion and Management, 2018, 159 : 30-41.

Fremaux S, Beheshti S M, Ghassemi H, et al. An experimental study on hydrogen-rich gas production via steam gasification of biomass in a research-scale fluidized bed[J ] . Energy Conversion and Management, 2015, 91 : 427-432.

Pauls J H, Mahinpey N, Mostafavi E. Simulation of air-steam gasification of woody biomass in a bubbling fluidized bed using Aspen Plus: a comprehensive model including pyrolysis, hydrodynamics and tar production[J ] . Biomass and Bioenergy, 2016, 95 : 157-166.

车德勇, 李少华, 韩宁宁, 等. 生物质流化床空气-水蒸气气化模拟[J ] . 中国电机工程学报, 2012, 32 (35): 101-106.

Che D Y, Li S H, Han N N, et al. Simulation of air-water vaporization of biomass fluidized bed[J ] . Proceedings of the CSEE, 2012, 32 (35): 101-106.

Zhao L, Lu Y. Hydrogen production by biomass gasification in a supercritical water fluidized bed reactor: a CFD-DEM study[J ] . The Journal of Supercritical Fluids, 2018, 131 : 26-36.

Cardoso J, Silva V, Eusébio D, et al. Comparative 2D and 3D analysis on the hydrodynamics behaviour during biomass gasification in a pilot-scale fluidized bed reactor[J ] . Renewable Energy, 2019 , 131 : 713-729.

Di Nardo A, Calchetti G, Stendardo S. Modeling and simulation of an oxygen-blown bubbling fluidized bed gasifier using the computational particle-fluid dynamics (CPFD) approach[J ] . Journal of Applied Fluid Mechanics, 2018, 11 (4): 825-834.

Xie J, Zhong W, Jin B, et al. Eulerian–Lagrangian method for three-dimensional simulation of fluidized bed coal gasification[J ] . Advanced Powder Technology, 2013, 24 (1): 382-392.

Loha C, Chattopadhyay H, Chatterjee P K. Energy generation from fluidized bed gasification of rice husk[J ] . Journal of Renewable & Sustainable Energy, 2013, 5 (4): 1367-1377.

Loha C, Chattopadhyay H, Chatterjee P K. Three dimensional kinetic modeling of fluidized bed biomass gasification[J ] . Chemical Engineering Science, 2014, 109 (16): 53-64.

Snider D M, Clark S M, Rourke P J. Eulerian–Lagrangian method for three-dimensional thermal reacting flow with application to coal gasifiers[J ] . Chemical Engineering Science, 2011, 66 (6): 1285-1295.

Smagorinsky J S. General circulation experiments with the primitive equations (I): The basic experiment[J]. Monthly Weather Review, 1963, ( 91): 99-164.

Wang S, Luo K, Hu C, et al. Impact of operating parameters on biomass gasification in a fluidized bed reactor: an Eulerian-Lagrangian approach[J ] . Powder Technology, 2018, 333 : 304-316.

Gungor A. Two-dimensional biomass combustion modeling of CFB[J ] . Fuel, 2008, 87 (8): 1453-1468.

Thapa R K, Pfeifer C, Halvorsen B M. Modeling of reaction kinetics in bubbling fluidized bed biomass gasification reactor[J ] . Energy and Environment, 2014, 5 (1): 35-44.

de Souza-Santos M L. Comprehensive modelling and simulation of fluidized bed boilers and gasifiers[J ] . Fuel, 1989, 68 (12): 1507-1521.

Gómez-barea A, Leckner B. Modeling of biomass gasification in fluidized bed[J ] . Progress in Energy & Combustion Science, 2010, 36 (4): 444-509.

Gonzalo C. Kinetics of CO2 gasification for coals of different ranks under oxy-combustion conditions[J ] . Combustion & Flame, 2013, 160 (2): 411-416.

Chen C, Werther J, Heinrich S, et al. CPFD simulation of circulating fluidized bed risers[J ] . Powder Technology, 2013, 235 : 238-247.

Abbasi A, Ege P E, de Lasa H I. CPFD simulation of a fast fluidized bed steam coal gasifier feeding section[J ] . Chemical Engineering Journal, 2011, 174 (1): 341-350.

Ku X, Li T, Løvås T. Influence of drag force correlations on periodic fluidization behavior in Eulerian-Lagrangian simulation of a bubbling fluidized bed[J ] . Chemical Engineering Science, 2013, 95 : 94-106.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

部分氧化技术在生物质能领域的应用

连续进料多腔室流化床停留时间分布数值模拟

含导流板喷雾流化床内颗粒包覆过程热质传递特性模拟研究

熔融盐辅助生物质热化学高值化转化研究进展

重质颗粒流态化研究现状与展望