Analisis Purifikasi Biogas dengan Metode Adsorpsi Menggunakan Adsorben Karbon Aktif Tempurung Kelapa dan Zeolit Alam pada Berbagai Laju Alir (Studi Kasus: Desa Carangwulung)

Taqiyuddin, Muhammad Fathin (2025) Analisis Purifikasi Biogas dengan Metode Adsorpsi Menggunakan Adsorben Karbon Aktif Tempurung Kelapa dan Zeolit Alam pada Berbagai Laju Alir (Studi Kasus: Desa Carangwulung). Undergraduate thesis, UPN "Veteran" Jawa Timur.

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Abstract

Biogas is a potential renewable energy source, but the content of impurity gases such as carbon dioxide (CO2) and hydrogen sulfide (H2S) reduces its quality and efficiency as a fuel. This study aims to analyze the effectiveness of the adsorption method using a combination of coconut shell activated carbon and natural zeolite in reducing CO2 and H2S levels and increasing methane (CH4) levels in biogas. The biogas used was produced from a cattle farm in Carangwulung Village. The variables tested included variations in the composition of activated carbon (C) and zeolite (Z) adsorbents with biogas flow rates of 0.2 L/min, 0.4 L/min, and 0.6 L/min. The test was carried out with an adsorbent mass of 300 grams activated by KOH and the resulting pressure ranged from 9–13 mbar. The results showed that the adsorbent composition of 50C:50Z with a flow rate of 0.2 L/min gave the best performance. Under these conditions, CO2 levels were successfully reduced from 22% to 3%, H2S from 99 ppm to 3 ppm, and CH4 levels increased from 45% to 87%, resulting in an effective increase in methane of 48%. The adsorption process at low flow rates provides optimal contact time between gas and adsorbent, thereby increasing the efficiency of impurity gas separation. In its implementation, the purified biogas needs to be stored first to maintain the stability of biogas pressure and flow, so that it can be used as fuel. Although a flow rate of 0.2 L/min provides the highest effectiveness, a flow rate of 0.6 L/min is considered more operationally efficient because it is able to meet the needs of a 0.72 m3 storage tank within 20 hours, while still producing good biogas quality. Keywords: Biogas, Adsorption, Activated Carbon, Zeolite, Methane, Carbon Dioxide, Hydrogen Sulfide.

Item Type:

Thesis (Undergraduate)

Contributors:

Contribution	Contributors	NIDN/NIDK	Email
UNSPECIFIED	Rosariawari, Firra	NIDN0709047501	firra.tl@upnjatim.ac.id
UNSPECIFIED	Sitogasa, Praditya Sigit Ardisty	NIDN0001109008	praditya.s.tl@upnjatim.ac.id

Subjects:

T Technology > TD Environmental technology. Sanitary engineering

Divisions:

Faculty of Engineering > Departement of Environmental Engineering

Depositing User:

Muhammad Fathin Taqiyuddin

Date Deposited:

23 Jul 2025 01:44

Last Modified:

29 Jul 2025 02:14

URI:

https://repository.upnjatim.ac.id/id/eprint/39585