Fredyansyah, Maulana Alfi (2026) Peningkatan Selektivitas Adsorpsi CO2/CH4 pada Zeolit A-4 Termodifikasi Low Pressure Cold Plasma dengan Variasi Waktu. Undergraduate thesis, Politeknik Negeri Jember.
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Abstract
Zeolite A-4 has potential as an adsorbent, but its selectivity toward CO₂ requires enhancement. This study aims to determine the effect of Low Pressure Cold Plasma (LPCP) exposure time variations of 10, 15, and 20 minutes on CO₂ adsorption capacity, CH₄ adsorption capacity, and CO₂/CH₄ selectivity of modified Zeolite A-4. This study employed an experimental laboratory method. CO₂ adsorption was measured using a LICOR 6262 CO₂/H₂O Analyzer, while CH₄ adsorption was analyzed using a Gas Chromatograph GC-2014 Shimadzu. Samples consisted of unmodified Zeolite A-4 (Z0) and three LPCP-modified samples with exposure times of 10 minutes (ZP10), 15 minutes (ZP15), and 20 minutes (ZP20). Results indicate that CO₂ adsorption capacity increased with longer LPCP exposure time. At a concentration of 1506 ppm, CO₂ adsorption increased from 2.01 × 10⁻⁶ mol/g (Z0) to 3.00 × 10⁻⁶ mol/g (ZP20). Conversely, CH₄ adsorption decreased from 3.0 × 10⁻⁸ mol/g (Z0) to 1.86 × 10⁻⁸ mol/g (ZP20) at the same concentration. The highest CO₂/CH₄ selectivity was achieved by ZP20 at 184.16 under a concentration of 8248 ppm, representing a substantial improvement over Z0, which reached only 113.05. LPCP modification with an exposure time of 20 minutes produced the highest CO₂/CH₄ adsorption selectivity in Zeolite A-4 compared to all other variations examined in this study
| Item Type: | Thesis (Undergraduate) | ||||||
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| Uncontrolled Keywords: | Zeolit A-4, Low Pressure Cold Plasma, Adsorpsi CO₂, Adsorpsi CH₄, Selektivitas CO₂/CH₄ | ||||||
| Subjects: | 100 - Rumpun Matematika dan Ilmu Pengetahuan Alam (MIPA) > 110 - Ilmu IPA > 111 - Fisika 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 433 - Teknik Kimia 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 442 - Teknik Fisika 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 443 - Teknik Enerji 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 445 - Teknik Material (Ilmu Bahan) |
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| Divisions: | Jurusan Teknik > Prodi D4 Teknik Energi Terbarukan > Tugas Akhir | ||||||
| Depositing User: | Maulana Alfi Fredyansyah | ||||||
| Date Deposited: | 18 Jun 2026 04:59 | ||||||
| Last Modified: | 18 Jun 2026 05:00 | ||||||
| URI: | https://sipora.polije.ac.id/id/eprint/56556 |
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