Bioethanol Production Processes

Taherzadeh, Mohammad J.; Lennartsson, Patrik R.; Teichert, Oliver; Nordholm, Håkan

doi:10.1002/9781118835913.ch8

Cited by 24 publications

(20 citation statements)

References 82 publications

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“…Umumnya industri bioetanol yang memproduksi etanol absolut menggunakan bahan baku etanol kadar ≥ 90% dengan proses evaporasi, distilasi dan dehidrasi dengan saringan molekular 3Ǻ (Taherzadah dan Karimi, 2008 Saringan molekuler dengan bahan utama zeolite yang digunakan pada pengolahan bioetanol menjadi bahan bakar, berperan mengadsorbsi air dan melewatkan etanol sehingga etanol yang dihasilkan lebih murni dan pupuler disebut etanol kering. Hal ini disebabkan adanya perbedaan ukuran molekul air yang lebih kecil dari 3Ǻ, sedangkan etanol memiliki ukuran molekul lebih besar dari 3Ǻ, sehingga yang diadsorsi dari bioetanol dalam bentuk campuran etanol-air adalah air (Rakhmatullah et al,.…”

Section: Rendemen Dan Mutu Fgeunclassified

Desain dan Kinerja Alat Pengolahan Bioetanol Model Baristand untuk Menghasilkan Bahan Bakar Etanol / Design and Performance of Bioethanol Processing Tool Baristand Model to Produce Fuel Grade Ethanol

2017

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ABSTRAKCadangan minyak bumi yang makin menipis dan makin meningkatnya kebutuhan energi serta dampak pencemaran lingkungan penggunaan energi dari minyak bumi, telah mendorong pengembangan sumber energi terbarukan antara lain bioetanol. Tujuan penelitian untuk mendesain unit pengolahan bioetanol skala kecil untuk menghasilkan bioetanol sebagai bahan bakar atau Fuel Grade Ethanol (FGE) yang praktis dioperasikan. Penelitian dilaksanakan pada Tahun 2013, di Laboratorium dan bengkel Balai Riset dan Standardisasi Industri Manado serta Bengkel Rekayasa Alat Balai Penelitian Tanaman Palma. Desain alat didasarkan pada alat pengolahan bioetanol dari aren sistem evaporatordestilator ganda, dan alat dehidrasi bioetanol menggunakan saringan molekuler zeolit dengan teknik vacuum swing absorbtion. Pengolahan FGE dengan suhu pemanasan terkontrol dan menggunakan saringan molekuler pada kolom dehidrator, proses pengolahan dilakukan sebanyak tiga kali. Pengamatan terdiri atas: desain alat (komponen alat, keragaman suhu unit operasi), dan kinerja alat (waktu kerja, laju alir bioetanol, rendemen, kehilangan hasil, dan mutu produk). Analisis data secara deskriptif. Hasil penelitian menunjukkan bahwa alat pengolahan bioetanol yang didesain dengan komponen utama adalah tangki evaporator, kolom dehidrator, dan kolom destilator. Pengolahan FGE menggunakan bahan baku bioetanol kadar 90%, suhu pemanasan unit operasi, yakni tangki evaporator 78-82 º C, kolom dehidrator 76-90 º C, dan kolom destilator 25-35 º C. FGE yang dihasilkan berkadar etanol 99,88% dan rendemen 92,13%. FGE memenuhi syarat mutu dan secara visual kenampakan jernih dan terang, tidak ada endapan dan kotoran. Alat pengolahan bioetanol model Baristand ini, lebih sesuai penggunaannya untuk kelompok tani atau Usaha Kecil Menengah. ABSTRACTThe development of renewable energy sources such as bioethanol was a major consideration, because of dwindling of unrenewable energy and increasing of energy needed. Utilization ofenergy from bioethanol was environmental friendly compared to fossil fuel. The objective of this research was to design small-scale bioethanol processing unit to produce bioethanol as a fuel or FGE which easily to be operated. The research was conducted at the Laboratory and Workshop of Research and Standardization of Industrial Institute Manado, and Equipment Engineeringof Indonesian Palms Crops Research Institute during 2013. The design of this machinery was based on to bioethanol processing unit through evaporator system-double distillation, and dehydration unit of bioethanol equipmet using molecular sieve zeolite with vacuum swing absorption techniques.Processing of FGE was equipped with controlled of temperature heating and utilization of molecular sieve for dehydrator column, processing. The process was evaluated for three times. The observed variables were design of tools (components, varianceof the operating unit temperature), and performance tools (working time, a flow rate of bioethanol, yield, losses and quality of the product). The datas were analysis by...

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Section: Rendemen Dan Mutu Fgeunclassified

Desain dan Kinerja Alat Pengolahan Bioetanol Model Baristand untuk Menghasilkan Bahan Bakar Etanol / Design and Performance of Bioethanol Processing Tool Baristand Model to Produce Fuel Grade Ethanol

2017

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“…Different grades of ethanol are available in the market, and most of the ethanol used for solvent, pharmaceutical, cosmetic, and chemical applications has 92.4-95% purity [118]. Microbial biomass can be centrifuged and recirculated depending on the strain and fermentation method, while the particles can be separated for combustion and heat or electricity production.…”

Section: Product Recoverymentioning

confidence: 99%

An Overview of Existing Individual Unit Operations

et al. 2014

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“…Using lime results in the generation of large amounts of gypsum. 2,3,12,13 In addition, ethanol yield in fermentation has been low because overliming does not remove all the toxic compounds from the hydrolysates. 7,14 Open literature on the fermentation of concentrated acid lignocellulose hydrolysates is scarce.…”

Section: Introductionmentioning

confidence: 98%

“…• C. 2,3,17,18 In the first step, the raw material is pretreated with 70-80 wt% H 2 SO 4 in order to break down the crystalline parts of the cellulose chains. In the second step, the acid is diluted to 20-30 wt%, and hydrolysis is carried out.…”

Section: Introductionmentioning

confidence: 99%

Ethanol production from wood via concentrated acid hydrolysis, chromatographic separation, and fermentation

Heinonen

Tamminen

Uusitalo

et al. 2011

J of Chemical Tech & Biotech

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BACKGROUND: Production of bioethanol from wood using concentrated acid hydrolysis has received less attention than the dilute acid hydrolysis route. The feasibility of producing lignocellulosic bioethanol from spruce and birch via concentrated acid hydrolysis was studied experimentally. Hydrolysis with sulfuric acid, chromatographic purification of the hydrolysate, and fermentation of the monosaccharides were investigated.

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Bioethanol Production Processes

Cited by 24 publications

References 82 publications

Desain dan Kinerja Alat Pengolahan Bioetanol Model Baristand untuk Menghasilkan Bahan Bakar Etanol / Design and Performance of Bioethanol Processing Tool Baristand Model to Produce Fuel Grade Ethanol

Desain dan Kinerja Alat Pengolahan Bioetanol Model Baristand untuk Menghasilkan Bahan Bakar Etanol / Design and Performance of Bioethanol Processing Tool Baristand Model to Produce Fuel Grade Ethanol

An Overview of Existing Individual Unit Operations

Ethanol production from wood via concentrated acid hydrolysis, chromatographic separation, and fermentation

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