Kaleemullah Shaikh , Samr Ul Hasnain , Wajahat Ahmed Khan , Salim Newaz Kazi , Mohd Nashrul Bin Mohd Zubir , Kamran Ali , Kok Hoe Wong , Rab Nawaz
{"title":"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","authors":"Kaleemullah Shaikh , Samr Ul Hasnain , Wajahat Ahmed Khan , Salim Newaz Kazi , Mohd Nashrul Bin Mohd Zubir , Kamran Ali , Kok Hoe Wong , Rab Nawaz","doi":"10.1016/j.cherd.2025.09.012","DOIUrl":null,"url":null,"abstract":"<div><div>The comparative study on inhibition of calcium carbonate (CaCO<sub>3</sub>) 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., SO<sub>2</sub>, NO<sub>x</sub>, and CO<sub>2</sub> 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 CaCO<sub>3</sub> scaling deposition exhibited that CMWCNT/CGNP hybrid at 0.0071 wt% is the best mitigating agent for the retardation of CaCO<sub>3</sub> in comparison to the alone CMWCNT and CGNP. The scaling resistance, overall heat transfer coefficient, and reduction in air pollutant emissions validated the CaCO<sub>3</sub> 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 SO<sub>2</sub> per MW, 0.048 tons of NOx per MW, and 2.11 tons of CO<sub>2</sub> 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.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"222 ","pages":"Pages 313-324"},"PeriodicalIF":3.9000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparative study on inhibition of mineral scaling on heat exchanger surface with green functionalized graphene nanoplatelets, multiwall carbon nanotubes, and their hybrid\",\"authors\":\"Kaleemullah Shaikh , Samr Ul Hasnain , Wajahat Ahmed Khan , Salim Newaz Kazi , Mohd Nashrul Bin Mohd Zubir , Kamran Ali , Kok Hoe Wong , Rab Nawaz\",\"doi\":\"10.1016/j.cherd.2025.09.012\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The comparative study on inhibition of calcium carbonate (CaCO<sub>3</sub>) 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., SO<sub>2</sub>, NO<sub>x</sub>, and CO<sub>2</sub> 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 CaCO<sub>3</sub> scaling deposition exhibited that CMWCNT/CGNP hybrid at 0.0071 wt% is the best mitigating agent for the retardation of CaCO<sub>3</sub> in comparison to the alone CMWCNT and CGNP. The scaling resistance, overall heat transfer coefficient, and reduction in air pollutant emissions validated the CaCO<sub>3</sub> 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 SO<sub>2</sub> per MW, 0.048 tons of NOx per MW, and 2.11 tons of CO<sub>2</sub> per MW. 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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.
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.