scholarly journals PEMBUATAN BAHAN BAKAR EMULSI MENGGUNAKAN ETANOL AREN DALAM UPAYA MENURUNKAN EMISI CO2

PHARMACON ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 911
Author(s):  
Novena Rawung ◽  
Hanny F. Sangian ◽  
Gerald H. Tamuntuan
Keyword(s):  
Renewable Energy ◽  
Boiling Point ◽  
Fermentation Process ◽  
Small Volume ◽  
Carbon Chain ◽  
Palm Tree ◽  
Mixed Result ◽  
Mixing Process ◽  
Distillation Process ◽  
Sugar Fermentation

ABSTRACT Research has been conducted to tackle the problem of CO2 emissions. Ethanol is a material that is often used, because it is a renewable energy obtained from the sugar fermentation process. Ethanol used for mixing is that which has been through the process of reflux fermentation and distillation. The first stage is the manufacture of ethanol by using a distillation process to obtain purity above 80%. The next stage is the mixing process carried out with a concentration of ethanol with a purity of 92% -98%, and the results of cracking kerosene with several variations of the boiling point. Kerosene was poured into a measuring cup with a volume of 7 ml and ethanol 92% -98% concentration was slowly added to form an emulsion. The results show that a mixture of kerosene, water and ethanol purity of 98%, only a small volume is needed to become 1 phase. But, for mixing kerosene, water and 92% ethanol purity, it takes a lot of volume. The easily mixed result is that the first kerosene product is 192-198 ℃ because it approaches the carbon gasoline chain. Meanwhile, for the results of kerosene products 272-276 ℃ is rather difficult to be mixed into 1 phase because, the carbon chain approaches diesel fuel. Keywords: Ethanol, Kerosene, Emulsion, Palm Tree (Arenga pinnata) ABSTRAK Telah dilakukan penelitian untuk menanggulangi masalah emisi CO2. Etanol menjadi bahan yang sering digunakan, karena merupakan energi terbarukan yang diperoleh dari proses fermentasi gula. Etanol yang digunakan untuk pencampuran yaitu yang telah melalui proses fermentasi dan destilasi refluks. Tahapan yang pertama yaitu pembuatan etanol dengan menggunakan proses destilasi untuk mendapat kemurnian diatas 80%. Tahapan selanjutnya yaitu proses pencampuran dilakukan dengan konsentrasi etanol dengan kemurnian 92%-98%, dan hasil cracking kerosene dengan beberapa variasi titik didih. Kerosene dituangkan kedalam gelas ukur dengan volume 7 ml dan etanol konsentrasi 92%-98% dimasukkan secara perlahan hingga membentuk emulsi. Hasilnya menunjukkan bahwa campuran antara kerosene, air dan kemurnian etanol 98%, hanya dibutuhkan sedikit volume untuk menjadi 1 fasa. Tapi, untuk pencampuran kerosene, air dan kemurnian etanol 92% dibutuhkan volume yang banyak. Hasil yang mudah tercampur yaitu produk kerosene yang pertama 192-198℃ karena, mendekati rantai karbon gasoline. Sedangkan, untuk hasil produk kerosene 272-276℃ agak sulit tercampur menjadi 1 fasa karena, rantai karbonnya mendekati bahan bakar diesel. Kata kunci : Etanol, Kerosene, Emulsi, Pohon Aren (Arenga pinnata)

A Review on the Advancement of Online Monitoring System for Cellulosic Ethanol Production

2015 ◽  
Vol 1113 ◽  
pp. 751-756
Author(s):  
Rosmaria Abu Darim ◽  
Amizon Azizan ◽  
Jailani Salihon
Keyword(s):  
Renewable Energy ◽  
Monitoring System ◽  
Cellulosic Ethanol ◽  
Transfer Rate ◽  
Fermentation Process ◽  
Online Monitoring ◽  
Environmental Concern ◽  
Oxygen Transfer Rate ◽  
Sugar Fermentation ◽  
Online Monitoring System

Bioethanol is mainly produced by sugar fermentation process. Due to global demand on energy for transportation and environmental concern, biofuels as renewable energy in replacing petrol, the non-renewable energy source, has come into picture. Utilization of lignocellulosic biomass such as woody biomass (trees), herbaceous biomass (grasses) and waste cellulosic materials (solid waste) could be used in replacing starch (such as corn and potato) as source of sugar in producing bioethanol. Recently, study on cellulosic ethanol was focussing on fermentation process using ethanologenic strain such as engineered Escherichia coli and Saccharomyces cerevisiae. Invasive method in the study during fermentation may lead to uncertain or unwanted screening strategies or metabolic pathways. This paper reviews about the online monitoring system used by researchers in order to study the growth kinetics of ethanologenic strain. Online monitoring system for the Oxygen Transfer Rate (OTR) and Carbon dioxide Transfer Rate (CTR) is found to be the important method to study kinetic model of ethanologenic strain, thus increasing metabolic yields with optimum design condition.

scholarly journals Utilization of robusta coffee waste as a renewable energy material - bioetanol

2018 ◽  
Vol 154 ◽  
pp. 01004
Author(s):  
Sutarno ◽  
Abdul Malik Kholiq
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Renewable Energy ◽  
Fermentation Process ◽  
Fermentation Time ◽  
Coffee Waste ◽  
Robusta Coffee ◽  
Energy Material ◽  
Catalyst Type ◽  
Hydrolysis Of

A research on robusta coffee waste has been conducted as a renewable energy material - Bioethanol. This research was carried out by hydrolysis and fermentation process using Zymomonasmobilis and Saccharomyces cerevisiae (Zymomonasmobilis) bacteria to obtain the best catalyst type in the process of hydrolysis of coffee skin to glucose and the effect of fermentation time on bioethanol content produced. This research was conducted by varying the fermentation time of 7 days; 8 days; 9 days and 10 days. The fermentation fluid was then distilled and tested for bioethanol using a refractometer. Furthermore, bioethanol concentration in the analysis using.

scholarly journals Monitoring of the Apple Ferment Parameters

2020 ◽  
Vol 70 (2) ◽  
pp. 49-54
Author(s):  
Čierny Matúš ◽  
Macho Oliver ◽  
Gabrišová Ľudmila ◽  
Fekete Roman
Keyword(s):  
Process Parameters ◽  
Main Part ◽  
Fermentation Process ◽  
Distillation Process ◽  
Temperature Conditions ◽  
Fermentation Temperature ◽  
Yeast Cultures ◽  
Experimental Process

AbstractThe aim of this study was to describe an experimental process, of which the main part is the preparation of apple batches and monitoring of the fermentation process. The batch was created from pulped apples to which special yeast cultures were added. Different process parameters of the fermentation were monitored during the experiments, depending on the yeast type and the fermentation temperature conditions. The fermented batch was later used in the distillation process of apple yeast.

Effets des sels de terres rares sur quelques phosphates dérivés des metabolites de la glycolyse

1991 ◽  
Vol 69 (8) ◽  
pp. 1281-1287 ◽  
Author(s):  
Claude Rabiller ◽  
Philippe Eymard ◽  
Mahmoud Mesbahi
Keyword(s):  
Nmr Spectroscopy ◽  
Key Words ◽  
Fermentation Process ◽  
Chemical Shifts ◽  
Deuterium Nmr ◽  
Sugar Fermentation ◽  
Phosphoglyceric Acid ◽  
Spectroscopy Studies ◽  
Sugar Derivatives ◽  
Derivatives Of

Phosphate derivatives of glucose and fructose are well-known intermediates in sugar fermentation. Proton and deuterium NMR spectroscopy studies of the fermentation process provide information about proton (deuteron) transfers that are likely to occur in such biotransformations. In this paper we describe the influence of complexation of those metabolites with praseodymium trichloride and of pH on their proton NMR chemical shifts. We determine the conditions under which all the protons of both the α. and β forms of these cyclic sugars are separated. Glucose-1 phosphate was found to be the most suitable derivative for this type of study. Furthermore, comparing the behaviour of these compounds with 2-phosphoglyceric acid allows us to specify the exact conformation of the latter. Key words: phosphate sugar derivatives, NMR, LIS effects.

scholarly journals Sequential Injection Kinetic Flow Assay for Monitoring Glycerol in a Sugar Fermentation Process by Saccharomyces cerevisiae

2009 ◽  
Vol 160 (6) ◽  
pp. 1664-1673 ◽  
Author(s):  
Karina B. Hueso Domínguez ◽  
Ildikó V. Tóth ◽  
M. Renata S. Souto ◽  
Filipa Mendes ◽  
Cándido García De María ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Fermentation Process ◽  
Sequential Injection ◽  
Sugar Fermentation

scholarly journals PEMBUATAN BIOETANOL BERBAHAN BAKU AMPAS TEBU DAN KULIT PISANG DENGAN VARIASI MASSA RAGI

JTAM ROTARY ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 123
Author(s):  
Fahron Anwar ◽  
Rachmat Subagyo
Keyword(s):  
Gas Chromatography ◽  
Fermentation Process ◽  
Ethanol Yield ◽  
Banana Peel ◽  
Distilled Water ◽  
Distillation Process ◽  
Fermentation Time ◽  
Ethanol Content

Penelitian ini bertujuan untuk menentukan kadar bioetanol terbaik dari kombinasi campuran ampas tebu dan pisang dengan variasi massa ragi 4 gram, 6 gram dan 8 gram dengan waktu fermentasi 60 jam, untuk menentukan massa ragi yang optimal dan untuk menentukan kadar etanol sesuai untuk SNI. Penelitian ini dilakukan dengan cara hidrolisis atau pendidihan ampas tebu dan kulit pisang untuk memecah molekul menjadi dua bagian dengan air suling, kemudian proses fermentasi dilakukan menggunakan Saccharomyces Cerevisae (ragi) sesuai variasi yang ditentukan dan proses penyulingan dilakukan menggunakan destilator untuk mendapatkan etanol dari fermentasi kemudian diuji dengan Refractometer Pen untuk mengetahui apakah ada etanol yang terbentuk dari proses distilasi. Sampel terbaik yang dipilih kemudian diuji kandungan etanol menggunakan alat Gas Chromatography. Jadi hasil etanol terbaik yang dapat dikategorikan sebagai pencapaian dalam SNI adalah kombinasi dari 75% ampas tebu - 25% kulit pisang dengan penambahan 8 gram ragi dan etanol yang diproduksi sebesar 96,64%. This study aims to determine the best bioethanol levels from a combination of bagasse and banana peel mixtures with variations in yeast mass of 4 grams, 6 grams and 8 grams with a fermentation time of 60 hours, to determine the optimum yeast mass and to determine ethanol levels according to SNI. This research was carried out by hydrolysis or boiling of bagasse and banana peel to break down molecules into two parts with distilled water, then the fermentation process was carried out using Saccharomyces Cerevisae (yeast) according to the specified variation and the distillation process was carried out using a destilator to get ethanol from fermentation then tested with a Refractometer Pen to find out if there is ethanol formed from the distillation process. The best sample selected then tested the ethanol content using the Gas Chromatography tool. So the best ethanol yield that can be categorized as achievement in SNI is a combination of 75% bagasse - 25% banana peel with the addition of 8 grams of yeast and ethanol produced at 96.64%.

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