Adsorpsi Gas CH4 pada Zeolit-A dan Zeolit A-Karbon dari Abu Dasar

Kurniawan, Randy (2017) Adsorpsi Gas CH4 pada Zeolit-A dan Zeolit A-Karbon dari Abu Dasar. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk menentukan kapasitas adsorpsi gas CH4 pada zeolit-A dan zeolit A-karbon yang disintesis dari abu dasar. Sintesis zeolit- A dan zeolit A-karbon dari abu dasar dilakukan dengan metode peleburan. Zeolit-A disintesis dengan perlakuan peleburan abu dasar dengan NaOH pada suhu 750oC dalam atmosfer udara, sementara zeolit A-karbon dilakukan dalam atmosfer N2. Hasil peleburan kemudian ditambahkan air demineralisasi dan larutan aluminat untuk mengatur rasio molar Si/Al 1,926 sebelum dilakukan proses hidrotermal. Padatan yang dihasilkan dikarakterisasi menggunakan X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Adsorpsi-Desorpsi N2 (BET) dan Fourier Tranform Infrared (FTIR). Hasil karakterisasi menunjukkan bahwa zeolit-A memiliki kristalinitas yang tinggi, sementara zeolit A- dihasilkan produk lain seperti zeolit HS dan sisa karbon. Nilai luas permukaan zeolit-A adalah 75,245 m2/g sedangkan zeolit A-karbon adalah 14,755 m2/g. Pengukuran adsorpsi gas CH4 secara gravimetri untuk sampel zeolit A-karbon, zeolit-A dan pembanding zeolit-A bahan murni berturut-turut adalah 22,15%, 10,55% dan 8,25%. Data adsorpsi gas CH4 pada zeolit A-karbon dan zeolit-A mengikuti model kinetika orde dua semu, sedangkan pada zeolit-A yang disintesis dari bahan murni mengikuti model kinetika difusi intrapartikel. =============================================================================================================== This study aims to determine the CH4 gas adsorption capacity in zeolite-A and zeolite A-carbon which is synthesized from bottom ash. Synthesis zeolit-A and zeolite A-carbon from bottom ash carried by the fusion method. Synthesis of zeolite A-uncarbon was prepared by NaOH fusion treatment at 750oC in air atmosphere while zeolite A-carbon was conducted in a N2. The fused product was dissolved in demineralized water and aluminat solution was added to adjust SiO2/Al2O3 molar ratio gel 1,926 prior hydrothermal process. The synthesis results was characterized using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), N2 Adsorption-Desorption (BET) and Fourier Tranfosm Infrared (FTIR). The results showed that the zeolite-A has a high crystallinity, while the zeolite A-carbon produced other products such as zeolite HS and carbon. Value zeolite-A surface area is 75,245 m2/g while the zeolite A-carbon is 14,755 m2/g. CH4 gas adsorption measurements by gravimetry on a sample of zeolite A-carbon, zeolite-A and comparative zeolite-A pure substance are respectively 22.15%, 10.55% and 8.25%. CH4 gas adsorption data on zeolite A-carbon and zeolite-A following the two pseudo-order kinetics model, while the zeolite-A is synthesized from pure material following the intraparticle diffusion kinetics model.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Abu dasar, Zeolit-A, Zeolit A-karbon, Peleburan, Adsorpsi gas CH4, Bottom ash, Fusion, CH4 adsorption.
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > QD502 Chemical kinetics
Divisions: Faculty of Mathematics and Science > Chemistry > (S1) Undergraduate Theses
Depositing User: - Randy Yusuf Kurniawan
Date Deposited: 30 Jan 2017 04:02
Last Modified: 11 Jul 2017 07:14
URI: http://repository.its.ac.id/id/eprint/3892

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