Bioethanol production: Feedstock and current technologies

Vohra, Mustafa; Manwar, Jagdish V.; Manmode, Rahul; Padgilwar, Satish; Patil, Sanjay

doi:10.1016/j.jece.2013.10.013

Cited by 382 publications

(180 citation statements)

References 53 publications

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“…Still, it is merely meet the current demand, and there are many conflicts and debates about their sustainability due to the depletion of water sources and the use of arable land to produce biomass for bioethanol production. 4,5 Although lignocellulosic biomass is an alternative source for first generation bioethanol feedstocks, it requires intensive labor and a high capital cost for processing. 5 Algae are considered as third generation biofuel feedstock and capable of generating more organic carbon per hectare than terrestrial plants.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

Sert

İnan

Özçimen

2018

ACSi

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In recent years, algal bioethanol production comes into prominence as a trend towards sustainable development. Due to being sustainable energy source and environmental friendly, bioethanol production from algae is becoming increasingly popular all over the world. However, yield of bioethanol production from algae is lower than first generation feedstock's currently, and needs to be improved. In order to increase bioethanol yield, pre-treatments should be performed as cell disruption process on algal biomass. For this reason, researchers investigate the most appropriate pre-treatment method and its parameters for high yield bioethanol production from algae. In this study, cultivated Chlorella minutissima was utilized for bioethanol production. Effects of pre-treatment method (dilute acid and alkaline), chemical concentration, pre-treatment temperature and pre-treatment time on bioethanol yield were investigated. It was found that, the highest bioethanol yield was obtained as 18.52% with acid pre-treatment at pre-treatment temperature of 100 °C and pre-treatment time of 60 minutes.

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Section: Introductionmentioning

confidence: 99%

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

Sert

İnan

Özçimen

2018

ACSi

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“…Bioetanol sebagai FGE menghasilkan energi 68% lebih rendah dibanding bahan bakar minyak bumi dan hasil pembakaran dalam mesin adalah bersih. Penggunaan bioetanol sebagai FGE dapat dicampur dengan bensin dengan konsentrasi 10-85% (Vohra et al, 2013). Umumnya diberbagai negara yang menggunakan bioetanol sebagai bahan bakar yang dicampur dengan bensin, dengan konsentrasi 5-10% (Antoni et al, 2007).…”

Section: Pendahuluanunclassified

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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“…Conversely most starch-based feedstocks and lignocellulose require some adequate pretreatment to be used for the production of fermentable sugar [46]. Lignocellulosic substrates are indeed composed of three materials: (i) cellulose, a sugar-based polymer; (ii) hemicelluloses, amorphous polysaccharides composed of different kinds of sugars, smaller than the ones of cellulose; (iii) lignin, which is a complex, aromatic polymer, mainly consisting of phenylpropane units [47].…”

Section: Bioethanol Productionmentioning

confidence: 99%

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

Cesaro

Belgıorno

2015

Energies

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Abstract:In the last decades the increasing energy requirements along with the need to face the consequences of climate change have driven the search for renewable energy sources, in order to replace as much as possible the use of fossil fuels. In this context biomass has generated great interest as it can be converted into energy via several routes, including fermentation and anaerobic digestion. The former is the most common option to produce ethanol, which has been recognized as one of the leading candidates to substitute a large fraction of the liquid fuels produced from oil. As the economic competitiveness of bioethanol fermentation processes has to be enhanced in order to promote its wider implementation, the most recent trends are directed towards the use of fermentation by-products within anaerobic digestion. The integration of both fermentation and anaerobic digestion, in a biorefinery concept, would allow the production of ethanol along with that of biogas, which can be used to produce heat and electricity, thus improving the overall energy balance. This work aims at reviewing the main studies on the combination of both bioethanol and biogas production processes, in order to highlight the strength and weakness of the integrated treatment for industrial application.

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Bioethanol production: Feedstock and current technologies

Cited by 382 publications

References 53 publications

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

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

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

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