Pengembangan Karbon Mesoporous Sebagai Adsorban Unggul Berkemampuan Selektif Terhadap Air Untuk Pemurnian Ethanol Grade Bahan Bakar

Fujanita, Desi and Yulianti, Susan (2014) Pengembangan Karbon Mesoporous Sebagai Adsorban Unggul Berkemampuan Selektif Terhadap Air Untuk Pemurnian Ethanol Grade Bahan Bakar. Undergraduate thesis, Institut Teknology Sepuluh Nopember.

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Abstract

Berawal dari besarnya manfaat material karbon berpori untuk berbagai macam aplikasi, mulai dari aplikasi teknologi konversi energi hingga biomedis maupun lingkungan, penelitian ini bertujuan untuk mensintesis karbon berpori yang mempunyai morfologi menyerupai serat. Dengan menggunakan metode sintesis yang mampu memberikan suatu kondisi yang disebut kinetically controlled, metode yang kami namakan dengan metode sekuensial gas-liquid, dapat mensintesis karbonmesoporous yang mempunyai luasan permukaan yang tinggi (836,25 m2/g) dan iodine number sebesar 602,5 mg/g, pada kondisi optimum operasional gas treatment yaitu (a) komposisi gas O2 30% vol, (b) waktu gas treatment 1 jam, (c) suhu gas treatment 300oC, dan (d) flow-rate gas 100 cc/m; dan pada kondisi optimum operasional liquid treatment yaitu (a) komposisi larutan HNO3 sebesar 65%, (b) 6 jam treatment, dan (c) suhu 100oC. Metode sintesis yang dikembangkan di sini memperhatikan aspek teknologi proses, ketersediaan bahan, dan keramahan lingkungan. Fungsi dari gas dan liquid treatment adalah mengarahkan pembentukan struktur morfologi pori-pori mikro karbon, yang dilapisi oleh gugus fungsional oksigen, seperti carboxylic acid, quinones, -C-OH (stretching), dan carboxylic anhydrides, yang mampu memenuhi segala persyaratan utama sebagai karbon ii berpori yang ideal. Selain itu, Liquid treatment berfungsi untuk merubah sifat hydrophobic pada karbon menjadi hydrophylic. Sebagai contoh untuk didemonstrasikan potensi kemanfaatannya, karbon-mesoporous digunakan sebagai adsorban unggul yang mampu memberikan kapasitas adsorpsi dan selektivitas terhadap air yang besar di dalam proses pemurnian ethanol grade bahan bakar. Hasil percobaan aplikasi karbon sebagai adsorban pemurnian ethanol menunjukkan terjadi kenaikan konsentrasi ethanol setelah dilakukan proses distilasi-adsorpsi. Hal ini membuktikan bahwa karbon black yang telah diaktivasi dengan metode gas-liquid treatment, dapat dijadikan adsorban untuk pemurnian ethanol. Namun, adsorban karbon mesoporous ini belum bisa menghasilkan ethanol grade bahan bakar. ========== Starting from the benefits of porous carbon material for a wide variety of applications, ranging from energy conversion technology applications to biomedicine and the environment, this study aims to synthesize porous carbon fibers have a morphology resembling. By using the method of synthesis that can provide a condition called kinetically controlled, a method which we call the sequential method of gas - liquid, can synthesize mesoporous carbon having a high surface area ( 836.25 m2 / g ) and iodine number of 602,5 mg / g, the optimum operating conditions of gas treatment, namely ( a) the gas composition of 30 vol% O2, ( b ) gas treatment time 1 hour, ( c ) gas treatment temperature 300oC, and ( d ) the gas flow- rate of 100 cc / m, and the optimum operating conditions of the treatment liquid, namely ( a) the composition of 65 % HNO 3 solution, (b) 6 hours of treatment, and ( c ) the temperature of 100oC. Synthesis method developed here the aspect of process technology, the availability of materials, and environmental friendliness . The function of gas and liquid treatment is directing the formation of the morphological structure of micro-porous carbon, which is covered by the oxygen functional groups, such as carboxylic acid, quinones,-C-OH (stretching), and carboxylic anhydrides, which are able to meet all the essential requirements as an ideal carbon mesoporous. In addition, liquid treatment serves to change the characteristic of the carbon from the iv hydrophobic become hydrophylic. As an example for the potential usefulness demonstrated, mesoporous carbon used as capable adsorbant that providing superior adsorption capacity and selectivity against water on fuel grade ethanol purification process. The experimental results of carbon as adsorbant at ethanol purification showed an increase in the concentration of ethanol after distillation-adsorption process. This proves that the carbon black that has been activated by gas-liquid treatment method, can be used as adsorbant for ethanol purification. However, the mesoporous carbon adsorbant not yet produce fuel grade ethanol.

Item Type: Thesis (Undergraduate)
Additional Information: RSK 661.068 3 Fuj p
Uncontrolled Keywords: karbon-mesoporous, sekuensial gas-liquid,kinetically controlled, hydrophobic, hydrophylic, distilasi-adsorpsi, Mesoporous carbon, sequential gas-liquid, kinetically controlled, hydrophobic, hydrophylic, distillation-adsorption.
Subjects: T Technology > TP Chemical technology > TP339 Ethanol as fuel. Biomass energy.
Divisions: Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User: - Davi Wah
Date Deposited: 13 Jan 2020 07:49
Last Modified: 13 Jan 2020 07:49
URI: http://repository.its.ac.id/id/eprint/72513

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