基于变湿吸附的空气CO2捕集与植物利用的耦合研究(英文)

被引：8

作者：

Cheng-long HOU ^{[1
]}

Yu-song WU ^{[1
]}

You-zhou JIAO ^{[2
]}

Jie HUANG ^{[1
]}

Tao WANG ^{[1
]}

Meng-xiang FANG ^{[1
]}

Hui ZHOU ^{[3
]}

机构：

[1] State Key Laboratory of Clean Energy Utilization,Zhejiang University

[2] Key Laboratory of New Materials and Facilities for Rural Renewable Energy of the Ministry of Agriculture,Henan Agricultural University

[3] Department of Earth and Environmental Engineering,Columbia University

来源：

Journal of Zhejiang University-Science A(Applied Physics & Engineering) | 2017年 / 18卷 / 10期

基金：

中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;

关键词：

直接空气捕集; 解吸附动力学; 温室; CO2气肥; 成本分析;

D O I：

暂无

中图分类号：

X173 [环境植物学]; X701 [废气的处理与利用];

学科分类号：

071012 ; 0713 ; 083002 ;

摘要：

目的:探究季铵型聚合物CO2解吸附过程温度和CO2浓度等变量对解吸附热力学和动力学的影响;研究空气CO2捕集供给植物增产的耦合方法,降低空气CO2捕集与利用的能耗与成本。创新点:1.基于变湿吸附技术,探究了季铵型聚合物CO2解吸附过程的热力学及动力学特性;2.获得了CO2作为气肥供给植物增产的关键影响参数;3.建立并优化了空气CO2捕集与植物利用的耦合模型。方法:1.通过CO2吸附平衡与动力学实验,获得季铵型聚合物CO2解吸附的平衡常数和动力学常数的影响参数;2.通过植物CO2吸收实验,获得CO2供给植物增产过程中CO2浓度和光照强度对吸收速率的影响;3.通过理论推导,构建解吸附CO2浓度与吸附剂质量、温度以及吹扫气流量等的关系,获得空气CO2捕集与植物增产的耦合模型并计算CO2捕集的能耗与成本。结论:1.季铵型聚合物材料吸附CO2的平衡常数随温度的升高而降低;吸附、解吸附动力学常数随温度的升高而升高。2.CO2供给植物增产的最佳浓度和光照强度为1000 ppm和8000 lux。3.基于优化的空气捕集与植物利用的耦合算法,CO2的捕集能耗与成本分别为35.67 k J/mol和34.68 USD/t。

引用

页码：819 / 830

页数：12

共 19 条

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