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All Journal Kinetika International Journal of Research in Vocational Studies (IJRVOCAS)
Candra Aprizal
Politeknik Negeri Sriwijaya
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Biogas Sebagai Bahan Bakar Alternatif Pada Steam Power Plant (Pengaruh Laju Alir Recycle Air Lindih Terhadap Komposisi dan Rendemen Biogas) Aprizal, Candra
KINETIKA Vol 1, No 1 (2013): TEKNIK ENERGI 01012013
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10.218 KB)

Abstract

Bio-reactor landfill digunakan untuk mempercepat proses produksi biogas dari sampah organik pasar. Landfill ini bertujuan mempercepat proses degradasi sampah pada bioreaktor dengan proses recycle air lindih, hal ini akan meningkatkan kuantitas dan kualitas biogas. Bahan baku yang digunakan berupa sampah organik, air dan bakteri methanobacterium. Penelitian ini bertujuan mempelajari pengaruh recycle air lindih terhadap kualitas biogas yang dihasilkan dengan parameter pH dan temperatur. Fermentasi dilakukan selama 15 hari dengan kapasitas 1 ton sampah organik dan variabel recycle air lindih 10 lt/m, 20 lt/m, dan 30 lt/m. Dari hasil penelitian didapatkan nilai konsentrasi CH4 sebesar 64.78 % , nilai Low Heating Value 7825.25 kkal/kg dan rendemen 1.259 % pada recycle 10 lt/m, sedangkan pada recycle 30 lt/m konsentrasi CH4 sebesar 50.4 %, nilai low heating value 5746.67 kkal/kg dan rendemen 0.6440 % dan hasil optimum produksi gas CH4dengan konsentrasi 70.76 %, nilai low heating value 8800.85 kkal/kg dan rendemen 1.385 %  pada recycle 20 lt/m.
Effective CO₂ Capture from Biomass Flue Gas Using a DEA-Promoted Potassium Carbonate Absorbent in a Packed Column Reactor Aprizal, Candra; Hasan, Abu; Bow, Yohandri
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 2 (2025): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i2.446

Abstract

This research investigates the effectiveness of a Diethanolamine (DEA) promoted potassium carbonate (K₂CO₃) solution for capturing carbon dioxide (CO₂) from flue gas generated by the carbonization of coconut shells. The study aimed to evaluate the influence of absorption column packing height and absorbent flow rate on CO₂ removal efficiency. The absorption process was conducted in a counter-current packed column using a solution composed of 30% wt K₂CO₃ and 3% wt DEA. Key process variables included packing heights of 10, 20, 30, and 40 cm, and absorbent flow rates of 0.5, 1.0, and 1.5 L/m. The results demonstrated that the combined DEA and K₂CO₃ solution is highly effective, achieving a maximum CO₂ removal efficiency of 97.81% at a packing height of 40 cm and a flow rate of 1.5 L/m. Analysis of the absorbent solution revealed a corresponding decrease in carbonate (CO₃²⁻) concentration and an increase in bicarbonate (HCO₃⁻) concentration, confirming the chemical absorption of CO₂. The process kinetics were found to align with a pseudo-second-order model. This study concludes that a packed column absorption system with a DEA-promoted K₂CO₃ solution presents an effective and viable method for mitigating CO₂ emissions from biomass processing.
Co-Authors Abu Hasan Yohandri Bow