张浩儒,张国强,余建豪,刘铭宇

• 1:华北电力大学能源动力与机械工程学院

摘要(Abstract)：

为了探究煤气化过程中氧气添加量和气化介质添加种类对于煤气化效率的影响，以及煤气化整体联合循环（IGCC）发电系统的集成优化，将以2种含氧量差别较大的煤种为例进行模拟分析。首先基于平衡反应模型对比了2煤种在不同总氧碳化学计量比（考虑煤自身含氧量）情况下对气化特性的影响结果；之后分析了分别添加CO_2与蒸汽作为气化介质时气化特性的变化规律，优化了其气化特性；最后在此基础上考虑CO_2捕获，提出了一种CO_2辅助气化、纯氧燃烧、部分烟气再循环的新型IGCC发电系统，并对其燃气轮机模型进行了模拟优化。结果表明：总氧碳化学计量比为0.47时煤气化的特性最佳；在此最佳总氧碳化学计量比条件下，添加CO_2作为煤气化流程气化介质，相比于传统添加蒸汽作为气化介质，可以使冷煤气效率提升约1.3%；基于此气化方法集成新型IGCC系统与传统燃烧前脱碳的IGCC发电方式相比，其净发电效率提高了约1.5%，?效率提高了约1.7%，该研究为设计低碳高效的IGCC发电系统提供了新思路。

关键词(KeyWords)： 煤气化特性;总氧碳化学计量比;低碳;IGCC;系统集成优化

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项（J2019-I-0009-0009）~~

作者(Author): 张浩儒,张国强,余建豪,刘铭宇

DOI: 10.19666/j.rlfd.202403063

参考文献(References)：

• [1]王哮江,刘鹏,李荣春,等.“双碳”目标下先进发电技术研究进展及展望[J].热力发电, 2022, 51(1):52-59.WANG Xiaojiang, LIU Peng, LI Rongchun, et al.Research progress and prospects of advanced power generation technology under the goal of carbon emission peak and carbon neutrality[J]. Thermal Power Generation, 2022, 51(1):52-59.
• [2]王辅臣.煤气化技术在中国：回顾与展望[J].洁净煤技术, 2020, 26(6):243-247.WANG Fuchen. Coal gasification technologies in China:review and prospect[J]. Clean Coal Technology, 2020,26(6):243-247.
• [3]徐振刚.中国现代煤化工近25年发展回顾·反思·展望[J].煤炭科学技术, 2020, 48(8):1-25.XU Zhengang. Review rethink and prospect of China’s modern coal chemical industry development in recent 25years[J]. Coal Science and Technology, 2020, 48(8):1-25.
• [4]杨学萍.碳中和背景下现代煤化工技术路径探索[J].化工进展, 2022, 41(7):3402-3412.YANG Xueping. Exploration on technical path of modern coal chemical industry under the background of carbon neutralization[J]. Chemical Industry and Engineering Progress, 2022, 41(7):3402-3412.
• [5] EMUN F, GADALLA M, MAJOZI T, et al. Integrated gasification combined cycle(IGCC)process simulation and optimization[J]. Computers&Chemical Engineering, 2010, 34(3):331-338.
• [6] SALAM P A, BHATTACHARYA S C. A comparative study of charcoal gasification in two types of spouted bed reactors[J]. Energy, 2006, 31(2/3):228-243.
• [7] JEONG H J, SEO D K, HWANG J. CFD modeling for coal size effect on coal gasification in a two-stage commercial entrained-bed gasifier with an improved char gasification model[J]. Applied Energy, 2014, 123:29-36.
• [8]汪寿建.现代煤气化技术发展趋势及应用综述[J].化工进展, 2016, 35(3):653-664.WANG Shoujian. Development and application of modern coal gasification technology[J]. Chemical Industry and Engineering Progress, 2016, 35(3):653-664.
• [9]王欢,范飞,李鹏飞,等.现代煤气化技术进展及产业现状分析[J].煤化工, 2021, 49(4):52-56.WANG Huan, FAN Fei, LI Pengfei, et al. Modern coal gasification technology progress and industry status analysis[J]. Coal Chemical Industry, 2021, 49(4):52-56.
• [10]徐越,吴一宁,危师让.二段式干煤粉气流床气化技术的模拟研究与分析[J].中国电机工程学报,2003(10):186-190.XU Yue, WU Yining, WEI Shirang. Simulation and analysis on gasification technology of a two-stage dry feed entrained flow bed[J]. Proceedings of the CSEE,2003(10):186-190.
• [11]徐越,吴一宁,危师让.基于Shell煤气化工艺的干煤粉加压气流床气化炉性能研究[J].西安交通大学学报,2003(11):1132-1136.XU Yue, WU Yining, WEI Shirang. Study on performance of dry feed entrained flow bed gasifier based on shell gasification technology[J]. Journal of Xi’an Jiaotong University, 2003(11):1132-1136.
• [12]郑志行,李谦,张家元,等.基于Aspen Plus的Shell气流床工业气化炉模拟[J].化工进展, 2021, 40(4):2152-2160.ZHENG Zhihang, LI Qian, ZHANG Jiayuan, et al.Simulation of industrial shell entrained flow bed by Aspen Plus[J]. Chemical Industry and Engineering Progress, 2021, 40(4):2152-2160.
• [13]池国镇,倪建军.气流床煤气化炉性能计算模型建立与验证[J].锅炉技术, 2021, 52(3):14-20.CHI Guozhen, NI Jianjun. Development and verification of performance calculation model for entrained flow coal gasifier[J]. Boiler Technology, 2021, 52(3):14-20.
• [14]张骏驰,赵春安,张龙.基于Aspen Plus的地下煤气化动力学模型建模[J].能源化工, 2022, 43(4):20-26.ZHANG Junchi, ZHAO Chun’an, ZHANG Long.Modeling of underground coal gasification kinetic model based on Aspen Plus[J]. Energy Chemical Industry, 2022,43(4):20-26.
• [15]武娜. CO2对煤焦气化特性影响实验研究[J].煤炭技术, 2018, 37(8):293-295.WU Na. Effect of CO2 on gasification characteristics of coal char[J]. Coal Technology, 2018, 37(8):293-295.
• [16]张云. CO2/H2O及其混合气氛对煤焦气化特性影响的实验研究[D].武汉:华中科技大学, 2018:3.ZHANG Yun. Characteristics of gasification of char with CO2, H2O or CO2/H2O[D]. Wuhan:Huazhong University of Science and Technology, 2018:3.
• [17]佟芳芳.含CO2气化剂煤气化反应的研究[D].西安:西安石油大学, 2014:3.TONG Fangfang. Coal gasification reaction research on containing CO2 gasification agent[D]. Xi’an:Xi’an Shiyou University, 2014:3.
• [18] CHANGCHUN L,WEI H,ZEFENG W, et al. A new cleaner power generation system based on self-sustaining supercritical water gasification of coal[J]. Journal of Thermal Science, 2022, 31(5):1380-1391.
• [19]弋朝山,张文斌,郭进军,等. IGCC过程中合成气全热回收的煤气化技术研究[J].煤化工, 2023, 51(5):7-11.YI Chaoshan, ZHANG Wenbin, GUO Jinjun, et al.Research on coal gasification technology of syngas total heat recovery in lGCC process[J]. Coal Chemical Industry, 2023, 51(5):7-11.
• [20] LI Y Y, ZHANG G Q, WANG L G, et al. Part-load performance analysis of a combined cycle with intermediate recuperated gas turbine[J]. Energy Conversion and Management, 2020, 205(2):13-46.
• [21] KAKARAS E, DOUKELIS A, GIANNAKOPOULOS D, et al. Novel concepts for near-zero emissions IGCC power plants[J]. Thermal Science, 2006, 10(3):81-92.
• [22] VERSTEEG P, RUBIN E S. A technical and economic assessment of ammonia-based post-combustion CO2capture at coal-fired power plants[J]. International Journal of Greenhouse Gas Control, 2011, 5(6):1596-1605.
• [23]田钫丞.耦合化学链燃烧捕集CO2的整体煤气化联合循环系统研究[D].北京:华北电力大学(北京),2023:1.TIAN Fangcheng. Research on integrated gasification combined cycle system coupled with chemical looping combustion to capture CO2[D]. Beijing:North China Electric Power University(Beijing), 2023:1.
• [24]刘飞,关键,祁志福,等.燃煤电厂碳捕集、利用与封存技术路线选择[J].武汉:华中科技大学学报(自然科学版), 2022, 50(7):1-13.LIU Fei, GUAN Jian, QI Zhifu, et al. Technology route selection for carbon capture utilization and storage in coal-fired power plants[J]. Wuhan:Journal of Huazhong University of Science and Technology(Natural Science Edition), 2022, 50(7):1-13.
• [25] KREUTZ T, WILLIAMS R, CONSONNI S, et al.Co-production of hydrogen electricity and CO2 from coal with commercially ready technology. Part B:economic analysis[J]. International Journal of Hydrogen Energy,2005, 30(7):769-784.
• [26] ZHANG G, YAN J, JIN H, et al. Integrated black liquor gasification polygeneration system with CO2 capture in pulp and paper mills to produce methanol and electricity[J]. International Journal of Green Energy,2011, 8(4):275-293.