绿色功能化石墨烯纳米片、多壁碳纳米管及其杂化物抑制换热器表面矿物结垢的比较研究

IF 3.9 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Kaleemullah Shaikh , Samr Ul Hasnain , Wajahat Ahmed Khan , Salim Newaz Kazi , Mohd Nashrul Bin Mohd Zubir , Kamran Ali , Kok Hoe Wong , Rab Nawaz
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引用次数: 0

摘要

研究了绿色官能化多壁碳纳米管(CMWCNT)、石墨烯纳米片(CGNP)及其混合物(CMWCNT/CGNP)对碳酸钙(CaCO3)结垢抑制作用的对比研究,以评估结垢沉积、阻垢性、总传热系数、经济效益以及因结垢减缓而减少的空气污染(即SO2、NOx和CO2排放)。在材料和方法部分,分别使用0.0071 wt%、0.0053 wt%和0.0036 wt%三种不同重量百分比的CMWCNT、CGNP及其杂交体处理冷溶液。CaCO3结垢沉积的结果表明,与单独的CMWCNT和CGNP相比,0.0071 wt%的CMWCNT/CGNP杂化剂是CaCO3阻滞的最佳缓释剂。阻垢性、总换热系数和大气污染物排放量的减少验证了CaCO3结垢沉积的结果。减少空气污染的结果表明,最好的缓解剂每兆瓦每年可减少0.0432吨SO2, 0.048吨NOx和2.11吨CO2。对比研究结果表明,CMWCNT/CGNP混合材料可以延长换热设备的使用寿命,有助于实现可持续发展目标7.3。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparative study on inhibition of mineral scaling on heat exchanger surface with green functionalized graphene nanoplatelets, multiwall carbon nanotubes, and their hybrid
The comparative study on inhibition of calcium carbonate (CaCO3) scaling with green functionalized multiwall carbon nanotubes (CMWCNT), graphene nanoplatelets (CGNP) and their hybrid (CMWCNT/CGNP) was studied to evaluate the scaling deposition, scaling resistance, overall heat transfer coefficient, economic benefits, and reduction in air pollution (i.e., SO2, NOx, and CO2 emissions) because of the mitigation of scaling. In the materials and methods section, three varying weight percentages of CMWCNT, CGNP, and their hybrid were used at 0.0071 wt%, 0.0053 wt%, and 0.0036 wt%, respectively, to treat the cold solution. The outcomes of CaCO3 scaling deposition exhibited that CMWCNT/CGNP hybrid at 0.0071 wt% is the best mitigating agent for the retardation of CaCO3 in comparison to the alone CMWCNT and CGNP. The scaling resistance, overall heat transfer coefficient, and reduction in air pollutant emissions validated the CaCO3 scaling deposition results. The finding of a reduction in air pollution reveals that the best mitigating agent can yearly reduce around 0.0432 tons of SO2 per MW, 0.048 tons of NOx per MW, and 2.11 tons of CO2 per MW. From the findings of the comparative investigation, it is concluded that the CMWCNT/CGNP hybrid can elongate the operating life of heat-exchanging equipment and contribute to achieve the Sustainable Development Goal target 7.3.
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来源期刊
Chemical Engineering Research & Design
Chemical Engineering Research & Design 工程技术-工程:化工
CiteScore
6.10
自引率
7.70%
发文量
623
审稿时长
42 days
期刊介绍: ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.
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