Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon
Activated carbon (AC) was synthesized from palm kernel shell (PKS) using different activating agents, i.e., steam, carbon dioxide (CO2), and CO2-steam, in order to analyze the impact of activating agents on the pore opening of AC. In this study, AC produced from PKS was found to have great potential...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2023-02-01
|
| Series: | Journal of Bioresources and Bioproducts |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2369969822000706 |
| _version_ | 1797861103229730816 |
|---|---|
| author | Mohd Saufi Md Zaini Muhammad Arshad Syed Shatir A. Syed-Hassan |
| author_facet | Mohd Saufi Md Zaini Muhammad Arshad Syed Shatir A. Syed-Hassan |
| author_sort | Mohd Saufi Md Zaini |
| collection | DOAJ |
| description | Activated carbon (AC) was synthesized from palm kernel shell (PKS) using different activating agents, i.e., steam, carbon dioxide (CO2), and CO2-steam, in order to analyze the impact of activating agents on the pore opening of AC. In this study, AC produced from PKS was found to have great potential as an adsorbent for methane storage. The different molecular diffusivity and reactivity of the combination of CO2 and steam succeeded in producing AC with the highest burn-off of 78.57%, a surface area of 869.82 m2/g, a total pore volume of 0.47 cm3/g, and leading to maximum methane gas adsorption capacity of 4.500 mol/kg. All types of ACs exhibited the best fit with the Freundlich isotherm model, with the correlation coefficient (R2) ranging from 0.997 to 0.999, indicating the formation of multilayer adsorption. In addition, the adsorption kinetic data for all ACs followed the pseudo-first-order model showing that the rate of adsorption was dependent on both the adsorbent and the adsorbate and was governed primarily by physical adsorption between the pore surface and methane gas. The results of intraparticle diffusion model indicated that the adsorption of methane was affected by both pore diffusion and exterior layer diffusion due to the different adsorption rates. |
| first_indexed | 2024-04-09T21:57:43Z |
| format | Article |
| id | doaj.art-abe7d9fca19840bbb81e97dd1a560cf5 |
| institution | Directory Open Access Journal |
| issn | 2369-9698 |
| language | English |
| last_indexed | 2024-04-09T21:57:43Z |
| publishDate | 2023-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Bioresources and Bioproducts |
| spelling | doaj.art-abe7d9fca19840bbb81e97dd1a560cf52023-03-24T04:22:49ZengKeAi Communications Co., Ltd.Journal of Bioresources and Bioproducts2369-96982023-02-01816677Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated CarbonMohd Saufi Md Zaini0Muhammad Arshad1Syed Shatir A. Syed-Hassan2School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA Cawangan Terengganu, Kampus Bukit Besi, Dungun 23200, MalaysiaDepartment of Basic Science, Jhang-Campus University of Veterinary and Animal Science, Lahore 35200, PakistanSchool of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; Corresponding author.Activated carbon (AC) was synthesized from palm kernel shell (PKS) using different activating agents, i.e., steam, carbon dioxide (CO2), and CO2-steam, in order to analyze the impact of activating agents on the pore opening of AC. In this study, AC produced from PKS was found to have great potential as an adsorbent for methane storage. The different molecular diffusivity and reactivity of the combination of CO2 and steam succeeded in producing AC with the highest burn-off of 78.57%, a surface area of 869.82 m2/g, a total pore volume of 0.47 cm3/g, and leading to maximum methane gas adsorption capacity of 4.500 mol/kg. All types of ACs exhibited the best fit with the Freundlich isotherm model, with the correlation coefficient (R2) ranging from 0.997 to 0.999, indicating the formation of multilayer adsorption. In addition, the adsorption kinetic data for all ACs followed the pseudo-first-order model showing that the rate of adsorption was dependent on both the adsorbent and the adsorbate and was governed primarily by physical adsorption between the pore surface and methane gas. The results of intraparticle diffusion model indicated that the adsorption of methane was affected by both pore diffusion and exterior layer diffusion due to the different adsorption rates.http://www.sciencedirect.com/science/article/pii/S2369969822000706Palm kernel shellActivated carbonMethane adsorptionKinetic modelIsotherm model |
| spellingShingle | Mohd Saufi Md Zaini Muhammad Arshad Syed Shatir A. Syed-Hassan Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon Journal of Bioresources and Bioproducts Palm kernel shell Activated carbon Methane adsorption Kinetic model Isotherm model |
| title | Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon |
| title_full | Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon |
| title_fullStr | Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon |
| title_full_unstemmed | Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon |
| title_short | Adsorption Isotherm and Kinetic Study of Methane on Palm Kernel Shell-Derived Activated Carbon |
| title_sort | adsorption isotherm and kinetic study of methane on palm kernel shell derived activated carbon |
| topic | Palm kernel shell Activated carbon Methane adsorption Kinetic model Isotherm model |
| url | http://www.sciencedirect.com/science/article/pii/S2369969822000706 |
| work_keys_str_mv | AT mohdsaufimdzaini adsorptionisothermandkineticstudyofmethaneonpalmkernelshellderivedactivatedcarbon AT muhammadarshad adsorptionisothermandkineticstudyofmethaneonpalmkernelshellderivedactivatedcarbon AT syedshatirasyedhassan adsorptionisothermandkineticstudyofmethaneonpalmkernelshellderivedactivatedcarbon |