新型人工光合作用系统的能量和质量平衡研究  

RESEARCH ON ENERGY AND MASS BALANCE CHARACTERISTICS OF NEW ARTIFICIAL PHOTOSYNTHESIS SYSTEM

作　　者：关学新 沈勇婷 裴刚 Kwan Trevor Hocksun;Shen Yongting;Pei Gang(Department of Thermal Science and Energy Engineering,School of Engineering Sciences,University of Science and Technology of China,Hefei 230027,China;School of Aeronautics and Astronautics,Sun Yat-sen University,Guangzhou 510006,China)

机构地区：[1]中国科学技术大学工程科学学院热科学与能源工程系,合肥2300272 [2]中山大学航空航天学院,广州510006

出　　处：《太阳能学报》2022年第9期104-110,共7页Acta Energiae Solaris Sinica

基　　金：中央高校基本科研业务费专项资金资助(WK2090000021);合肥市自然科学基金(任务编号(2021048));国家重点研发计划(2020YFA0710100);国家自然科学基金面上项目(51776193)。

摘　　要：该文提出一种新型人工光合作用(AP)系统,通过PV/T装置将太阳能光热综合利用,转化为热能和电能,分别供给吸附式碳捕获和碳还原的反应过程。建立并耦合PV/T模型、吸附碳捕获与碳还原反应模型,随后基于CO_(2)还原反应所需的CO_(2)质量进行能量-质量匹配性分析。结果表明,金属有机骨架74(MOF-74)的CO_(2)捕获量比活性炭大了6倍,具有较大的CO_(2)捕获潜力,但当MOF-74吸附剂的质量高于50 kg时,CO_(2)捕获的热效率降低到20%以下。采用聚光度为10的1 m^(2)的PV/T时,15 kg的MOF-74可在一天内捕获0.45 kg的纯CO_(2),并制备0.152 kg甲烷。This paper proposes a new artificial photosynthesis(AP)system that involves a photovoltaic/thermal(PV/T)device to convert solar energy into heat and power,and the heat is supplied to adsorption-based carbon dioxide capture,and the power is supplied to the reduction reaction.This paper will build and couple the PV/T device,adsorption carbon capture,and carbon reduction reaction models.Then,the amount of captured carbon dioxide to that required by the reduction reaction process will be comparatively analyzed.Results show that MOF-74 can capture 6 times more carbon dioxide than activated carbon,so it has a better potential for carbon dioxide capture.However,when the MOF-74 adsorbent mass is higher than 50 kg,the carbon dioxide capture's thermal efficiency decreases to below 20%.Moreover,when a 1 square meter PV/T panel with 10 solar concentrations is used,5 kg of MOF-74 can capture 0.45 kg/d of carbon dioxide,which subsequently enabled 0.152 kg/d of methane production.

关 键 词：太阳能 人工光合作用 气体吸附 电解还原 

分 类 号：TK512[动力工程及工程热物理—热能工程]