摘要
提出一种太阳能驱动生物质气化的动力多联产系统,利用聚光太阳能驱动生物质热化学气化反应,生成的合成气在合成反应单元中被转化为天然气,未反应的合成气直接用于联合循环系统发电。该文对系统进行热力学性能分析,探究了气化温度和水煤气转换单元对系统性能的影响。结果表明系统的一次能源效率为44.63%,产物中合成天然气和发电量之比为3.56。随着气化温度升高,系统的合成天然气产量和一次能源效率均减少;而水煤气转换单元有益于提高天然气的合成效率和系统的综合性能。
A new poly-generation system with solar-driven biomass gasification is proposed.Concentrated solar energy is used to provide the heat required of biomass gasification process,then the produced syngas is converted into synthetic natural gas(SNG)in a synthesis reactor,and the unreacted syngas is directly for power products in a combined cycle.In this work,the thermodynamic performances of the system and the influences of temperature and water-gas conversion ratio on system performances are investigated.Results show that the primary energy efficiency of the system is 44.63%,and the ratio of SNG to power in products is about 3.56.With the increases of gasification temperature,the SNG product and the primary energy efficiency decreases accordingly.In addition,the water-gas conversion unit is helpful to improve the synthetic efficiency of natural gas and system efficiency.
作者
吴海峰
刘佳维
刘启斌
Wu Haifeng;Liu Jiawei;Liu Qibin(Beijing Building Energy Efficient Comprehensive Utilization Engineering Technology Research Center,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2022年第1期465-470,共6页
Acta Energiae Solaris Sinica
基金
国家重大项目(52090061)
北京建筑大学青年教师科研能力提升计划(X21012)。
关键词
太阳能
生物质
气化
合成天然气
多联产系统
solar energy
biomass gasification
synthetic natural gas
poly-generation system
