Pengaruh Laju Alir Biogas dan Ukuran Partikel Pembentuk Pelet terhadap Penyisihan Karbon Dioksida (CO2) dalam Biogas dengan Proses Adsorpsi - Desorpsi Menggunakan Adsorben Berbasis Zeolit Alam untuk Peningkatan Kualitas Biogas

Rivaldi Sidabutar; Bambang Trisakti; Irvan

doi:10.32734/jtk.v12i1.10134

Authors

Rivaldi Sidabutar Universitas Sumatera Utara
Bambang Trisakti Universitas Sumatera Utara
Irvan Universitas Sumatera Utara

DOI:

https://doi.org/10.32734/jtk.v12i1.10134

Keywords:

Pb(II) adsorption, desorption, adsorbent, zeolite, carbon dioxide

Abstract

Adsorption is the process of fluid molecules contacting the surface of a solid material. This study aims to remove carbon dioxide (CO₂) gas in biogas using natural zeolite-based adsorbent pellets by adsorption and desorption of CO₂ from the adsorbent using air. CO₂ removal was carried out to determine the percentage of CO₂ removal efficiency with variations in biogas flow rates (100 mL/minute, 300 mL/minute, and 500 mL/minute) and variations in the type of adsorbent pellets (particle size, activation time, calcination time, and dealumination activation treatment). Determination of the percentage of CO₂ removal is carried out by flowing the biogas into the column and contacting it with the adsorbent continuously for 30 minutes and the output gas is collected in a gas collector to analyze the remaining CO₂ content. The results showed that the best CO₂ removal was 97.7% using an adsorbent with a particle size of 140 mesh, 4 hours of calcination, 90 minutes of activation time, and dealumination activation at a flow rate of 100 mL/minute. The breakthrough characteristic curve presents the characteristic “S” profile at constant flow rate (100 mL/minute).

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