Use of nanoparticles Cu/TiO(OH)(2) for CO2 removal with K2CO3/KHCO3 based solution: enhanced thermal conductivity and reaction kinetics enhancing the CO2 sorption/desorption performance of K2CO3/KHCO3
Energy & Fuels
; Engineering, Environmental
; Environmental Sciences
WOS研究方向:
Energy & Fuels
; Engineering
; Environmental Sciences & Ecology
英文摘要:
Global climate change resulting from substantial CO2 emissions is increasingly attracting attention, and coal-fired power plants are a major source of CO2 emission, so it is necessary to control and reduce CO2 emissions from power plants. Using alkali-based solutions for CO2 capture is thought to be an effective method to achieve this but poor CO2 sorption/desorption kinetics inhibit its development. The use of nanofluids, prepared by adding nanoparticles to an alkali-based solution, is a promising way to improve CO2 sorption/desorption reactivity because the addition of nanoparticles not only improves the gas-liquid mass/heat transfer but also enhances the reaction kinetics. In this paper, a nanostructured Cu/TiO(OH)(2) was prepared and used to accelerate the CO2 sorption/desorption performance of a potassium-based solution. The CO2 sorption/desorption reaction rates increased with the thermal conductivity of the nanofluid but the inclusion of more nanoparticles resulted in particle sedimentation. The potassium-based solution containing 0.014 vol% of the nanostructured Cu/TiO(OH)(2) was therefore the targeted nanofluid that gave the best CO2 sorption/desorption performance and cyclic stability. (c) 2018 Society of Chemical Industry and John Wiley & Sons, Ltd.
1.Nanjing Univ Sci & Technol, MIIT Key Lab Thermal Control Elect Equipment, Sch Energy & Power Engn, Nanjing, Jiangsu, Peoples R China 2.Nanjing Univ Sci & Technol, Adv Combust Lab, Sch Energy & Power Engn, Nanjing 210094, Jiangsu, Peoples R China 3.Southeast Univ, Key Lab Energy Thermal Convers & Control, Minist Educ, Sch Energy & Environm, Nanjing, Jiangsu, Peoples R China
Recommended Citation:
Liu, Wei,Wu, Ye,Cai, Tianyi,et al. Use of nanoparticles Cu/TiO(OH)(2) for CO2 removal with K2CO3/KHCO3 based solution: enhanced thermal conductivity and reaction kinetics enhancing the CO2 sorption/desorption performance of K2CO3/KHCO3[J]. GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,2019-01-01,9(1):10-18