Pemurnian Biogas Menjadi Biometana Dan Precipitated Calcium Carbonate (PCC) Dengan Metode Bubble Column

Bonifalih, Hafizh Pandega and Imran, Fuad Makarim (2018) Pemurnian Biogas Menjadi Biometana Dan Precipitated Calcium Carbonate (PCC) Dengan Metode Bubble Column. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sebagai energi terbarukan yang menjajikan biogas dapat membantu meringankan beban pencemaran lingkungan dan krisis energi. Pemurnian biogas adalah salah satu kunci teknologi dalam pengembangan utilisasi biogas. Secara khusus, peghilangan CO2 dalam biogas dapat meningkatkan nilai kalornya untuk memenuhi standar Compressed Natural Gas (CNG), sebagai bahan bakar masa depan yang sangat penting. Dalam penelitian ini, biogas yang dihasilkan dari hibah instalasi reaktor biogas di Dusun Podorejo, Desa Sajen, Kecamatan Pacet, Kabupaten Mojokerto dimurnikan dengan dilewatkan melalui larutan Ca(OH)2 dalam alat kolom gelembung (bubble column contactor) dengan menghasilkan Precipitated Calcium Carbonate (PCC). Pengaruh laju alir biogas pada waktu kontak terhadap kualitas dan kuantitas PCC akan dipelajari dalam penelitian ini. Kolom gelembung (diameter= 7 cm) diisi larutan Ca(OH)2 setinggi 20 cm. Biogas dialirkan melalu distributor pada laju volumetric 0.1-0.5 liter/menit hingga pH larutan dalam kolom gelembung menjadi 6-7. PCC yang terbentuk diendapkan, disaring kemudian dikeringkan dalam oven. Karakterisasi dengan XRD menunjukkan bahwa diantara tiga bentuk kristal (calcite, vaterite dan aragonite), calcite adalah yang paling stabil. Untuk menyelidiki pengaruh gas metana dan gas-gas lain dalam biogas terhadap pembentukan PCC, gas karbon dioksida murni digunakan sebagai pembanding. ================ As a promising renewable energy, biogas can help alleviate environmental pollution and energy crises. Biogas purification is one of the key technology in the development stage of biogas utilization. the removal of carbon dioxide (CO2) in biogas can increase its calorific value, in order to meet the compressed natural gas (CNG) standard, as a very important fuel in the future. In this study, the biogas produced from the biogas reactor installation in Dusun Podorejo, Desa Sajen, Kecamatan Pacet, Kabupaten Mojokerto granted from ITS was purified by passing through a solution Ca(OH)2 in bubble column contactor to produce precipitated calcium carbonate (PCC). The effect of biogas flow rate on contact time, PCC quality is experimentally studied. The bubble column (diameter= 7 cm) filled with saturated Ca(OH)2 as high as 20 cm. Biogas is passing through the distributor at a volumetric rate of 0.1-0.5 liter/minute until the solution pH in the bubble column becomes 6-7. the formed PCC is precipitated, filtered and then dried in an oven. Characterization of PCC using XRD shows that between the three crystalline forms (calcite, vaterite, and aragonite), calcite is the most stable. To investigate the effect of methane gas and other gases in biogas on the formation of PCC, pure carbon dioxide gas is used as a benchmark.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Biogas; Kolom gelembung; Precipitated Calcium Carbonate (PCC); larutan Ca(OH)2; Bubble column; Ca(OH)2 solution
Subjects: T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles.
T Technology > TP Chemical technology > TP359 Biogas
Divisions: Faculty of Industrial Technology > Chemical Engineering > (S1) Undergraduate Theses
Depositing User: Hafizh Pandega Bonifalih
Date Deposited: 15 Mar 2018 01:31
Last Modified: 15 Mar 2018 01:31
URI: http://repository.its.ac.id/id/eprint/49944

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