Effect of Ultrasonic Pre-treatment on the Formation of DDR3 Zeolites as Adsorbent of Carbon Dioxide Capture
In the recent years, global concentration of carbon dioxide in the atmosphere has rapidly increased. The emission of carbon dioxide gives an impact on the global climate change. There are several commercially available process technologies which can be used for capturing CO2 such as amine absorption...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
IRC
2014
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| Subjects: | |
| Online Access: | http://utpedia.utp.edu.my/14481/1/Nur%20Syahirah%20Mohamed%20Nazri_14354.pdf http://utpedia.utp.edu.my/14481/ |
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| Summary: | In the recent years, global concentration of carbon dioxide in the atmosphere has rapidly increased. The emission of carbon dioxide gives an impact on the global climate change. There are several commercially available process technologies which can be used for capturing CO2 such as amine absorption, membrane separation and adsorption. Adsorption is the most preferable technology to be used as it shown great potential in CO2 adsorption. Zeolites are amongst the most widely reported physical adsorbents for CO2 capture in the research study and DDR3 zeolite is one of the promising material for CO2 adsorption. However, synthesis of DDR3 type zeolite is still a major concern due to it long synthesis duration which is up to 25 days. Therefore, this research work is focusing on the synthesis of DDR3 zeolite by using ultrasonic pre-treatment in order to reduce the crystallization time and increase the CO2 adsorption capability while maintaining the morphology of the crystals. The resulting particles were characterized by using X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), and Fourier Transformed Infared (FTIR). The CO2 adsorption characteristic of the resultant particles was analyzed by using CO2 physisorption testing. The XRD results showed that the synthesis duration of the DDR3 zeolite has been successfully reduced to 1 day by introducing ultrasonic pretreatment method coupled with hydrothermal heating. Besides, the FESEM and FTIR results confirmed the morphology and structure of DDR3. However, based on the CO2 physisorption testing, it showed that the adsorption capacity of DDR3 for all samples are more likely similar but are relatively low compared to the literature. |
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