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Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts

In this study, the catalytic methanation conversion system is introduced to convert CO2 to methane (CH4). Hot mix asphalt (HMA) plants include of heating, drying and mixing processes contributed to carbon dioxide (CO2 ) emissions. The first stage of the study is the analysis of flue gases emissions...

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Main Author: Nashruddin, Thanwa Filza
Format: Thesis
Language:English
Published: 2021
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/101910/1/ThanwaFilzaNashruddinPSKA2021.pdf
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spelling my.utm.1019102023-07-22T03:56:16Z http://eprints.utm.my/id/eprint/101910/ Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts Nashruddin, Thanwa Filza TA Engineering (General). Civil engineering (General) In this study, the catalytic methanation conversion system is introduced to convert CO2 to methane (CH4). Hot mix asphalt (HMA) plants include of heating, drying and mixing processes contributed to carbon dioxide (CO2 ) emissions. The first stage of the study is the analysis of flue gases emissions from the chimney in HMA plant by on-site gas analysis and laboratory. The flue gas emission analysis shows that CO2 produced from HMA plant operating is between 1.30-7.33%. For second stage, the optimization and characterization of potential catalyst was conducted to determine the factor contributed to the catalytic activity. The results from optimization of catalyst revealed that the parameters catalyst loading with 65wt.% of manganese (Mn), 30wt.% of nickel (Ni), and 5wt.% of ruthenium (Ru) at calcination 500°C and aging of 90°C produced the optimum values in term of CO2 conversion and CH4 formation during the reaction. For characterization analysis, the X-ray diffractograms (XRD) has observed the well-defined sharp peaks for elements of alumina (Al2O3), manganese oxide (MnO), nickel oxide (NiO), and ruthenium oxide (RuO) in a crystalline shape. The Brunauer-Emmett-Teller (BET) theory of surface area of Ru/Ni/Mn (5:30:65)/Al2O3 catalyst are decreased along with the increasing of calcination temperature. The Nitrogen adsorption (NA) found that more characteristic of mesopores resembled the typical shape of Type IV isotherm. Field emission scanning electron microscopy with energy-dispersive X-ray spectroscopy (FESEM-EDX) revealed the morphology of catalyst was break into pieces with planes surfaces. Also, the presence of crystallite images in rhombic and diamond shape as the calcination temperature increased. At last stages, the effect of gas mixture of CO2/H2 methanation with compressed air (N2O2), nitrogen (N2), propane (C3Hg) and nitrous dioxide (NO2) that present in HMA plants towards the catalyst were not deactivate the catalytic activity. The results show that, less significant different (10%) of CO2 conversion produces compared to the optimum CO2 conversion. In addressing environmental issues, the introduction of catalyst technology in the HMA plants is therefore highly recommended to preserve sustainable environmental. 2021 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/101910/1/ThanwaFilzaNashruddinPSKA2021.pdf Nashruddin, Thanwa Filza (2021) Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts. PhD thesis, Universiti Teknologi Malaysia. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146078
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Nashruddin, Thanwa Filza
Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
description In this study, the catalytic methanation conversion system is introduced to convert CO2 to methane (CH4). Hot mix asphalt (HMA) plants include of heating, drying and mixing processes contributed to carbon dioxide (CO2 ) emissions. The first stage of the study is the analysis of flue gases emissions from the chimney in HMA plant by on-site gas analysis and laboratory. The flue gas emission analysis shows that CO2 produced from HMA plant operating is between 1.30-7.33%. For second stage, the optimization and characterization of potential catalyst was conducted to determine the factor contributed to the catalytic activity. The results from optimization of catalyst revealed that the parameters catalyst loading with 65wt.% of manganese (Mn), 30wt.% of nickel (Ni), and 5wt.% of ruthenium (Ru) at calcination 500°C and aging of 90°C produced the optimum values in term of CO2 conversion and CH4 formation during the reaction. For characterization analysis, the X-ray diffractograms (XRD) has observed the well-defined sharp peaks for elements of alumina (Al2O3), manganese oxide (MnO), nickel oxide (NiO), and ruthenium oxide (RuO) in a crystalline shape. The Brunauer-Emmett-Teller (BET) theory of surface area of Ru/Ni/Mn (5:30:65)/Al2O3 catalyst are decreased along with the increasing of calcination temperature. The Nitrogen adsorption (NA) found that more characteristic of mesopores resembled the typical shape of Type IV isotherm. Field emission scanning electron microscopy with energy-dispersive X-ray spectroscopy (FESEM-EDX) revealed the morphology of catalyst was break into pieces with planes surfaces. Also, the presence of crystallite images in rhombic and diamond shape as the calcination temperature increased. At last stages, the effect of gas mixture of CO2/H2 methanation with compressed air (N2O2), nitrogen (N2), propane (C3Hg) and nitrous dioxide (NO2) that present in HMA plants towards the catalyst were not deactivate the catalytic activity. The results show that, less significant different (10%) of CO2 conversion produces compared to the optimum CO2 conversion. In addressing environmental issues, the introduction of catalyst technology in the HMA plants is therefore highly recommended to preserve sustainable environmental.
format Thesis
author Nashruddin, Thanwa Filza
author_facet Nashruddin, Thanwa Filza
author_sort Nashruddin, Thanwa Filza
title Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
title_short Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
title_full Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
title_fullStr Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
title_full_unstemmed Catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
title_sort catalytic methanation on conversion of carbon dioxide over alumina-supported manganese oxide catalysts
publishDate 2021
url http://eprints.utm.my/id/eprint/101910/1/ThanwaFilzaNashruddinPSKA2021.pdf
http://eprints.utm.my/id/eprint/101910/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146078
_version_ 1772811129221808128
score 13.211869

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