Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
Agricultural wastes such as oil palm ash have a possibility to be utilized as a useful renewable source for production of energy and silica (SiO2). Extensive researches have been carried out to extract silica from agricultural wastes, due to silica as a useful raw material for industrial application...
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my-unimap-780872023-03-07T07:33:57Z Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis Abdullah, Chik, Assoc. Prof. Agricultural wastes such as oil palm ash have a possibility to be utilized as a useful renewable source for production of energy and silica (SiO2). Extensive researches have been carried out to extract silica from agricultural wastes, due to silica as a useful raw material for industrial application. Oil palm ash is one of the waste material from the palm oil industry where is was obtained from the burning process of solid waste such as empty fruit bunch, shell and fiber. Oil palm ash contains a large amount of silica. This study has been conducted to extract silica from palm ash by removing impurities using citric acid via leaching process. Various experimental parameters, such as acid concentration (1 to 6 %), reaction time (30 to 180 minutes), leaching temperature (30 to 90 C) and solid/liquid ratio (1:50 – 1:10) were investigated. Then, the effect of each parameter towards extraction process was evaluated using XRF, FTIR, XRD and SEM. The optimum extracting condition was achieved at 3% concentration of citric acid, 70C of solution temperature, 60 minutes of reaction time and 1:25 ratio of solid/liquid. XRF results show that the content of silica in treated palm ash can reach up to 92% after citric acid leaching treatment. The transmittance peaks at 798 - 778 cm-1 show that silica element is absent in the treated palm ash. Preliminary tests have shown that there is a possibility of using silica extracted from palm ash to synthesize zeolite. Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78087 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/1/Page%201-24.pdf 1454a2cc356e64d56e041b3080f0debe http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/2/Full%20text.pdf a9d25522a4a21b89e5f46721bc74c665 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/4/Faizul%20Che%20Pa.pdf 114121d4678f2d45f97b6ff5da3766ba Universiti Malaysia Perlis (UniMAP) Agricultural waste Citric acid Silica Oil palm ash School of Materials Engineering |
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Universiti Malaysia Perlis |
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UniMAP Institutional Repository |
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English |
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Abdullah, Chik, Assoc. Prof. |
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Agricultural waste Citric acid Silica Oil palm ash |
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Agricultural waste Citric acid Silica Oil palm ash Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
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Agricultural wastes such as oil palm ash have a possibility to be utilized as a useful renewable source for production of energy and silica (SiO2). Extensive researches have been carried out to extract silica from agricultural wastes, due to silica as a useful raw material for industrial application. Oil palm ash is one of the waste material from the palm oil industry where is was obtained from the burning process of solid waste such as empty fruit bunch, shell and fiber. Oil palm ash contains a large amount of silica. This study has been conducted to extract silica from palm ash by removing impurities using citric acid via leaching process. Various experimental parameters, such as acid concentration (1 to 6 %), reaction time (30 to 180 minutes), leaching temperature (30 to 90 C) and solid/liquid ratio (1:50 – 1:10) were investigated. Then, the effect of each parameter towards extraction process was evaluated using XRF, FTIR, XRD and SEM. The optimum extracting condition was achieved at 3% concentration of citric acid, 70C of solution temperature, 60 minutes of reaction time and 1:25 ratio of solid/liquid. XRF results show that the content of silica in treated palm ash can reach up to 92% after citric acid leaching treatment. The transmittance peaks at 798 - 778 cm-1 show that silica element is absent in the treated palm ash. Preliminary tests have shown that there is a possibility of using silica extracted from palm ash to synthesize zeolite. |
format |
Thesis |
title |
Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
title_short |
Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
title_full |
Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
title_fullStr |
Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
title_full_unstemmed |
Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
title_sort |
citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis |
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School of Materials Engineering |
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http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78087/4/Faizul%20Che%20Pa.pdf |
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