Renewable energy: Fuel from biomass, production of ethanol from various sustainable sources by fermentation process

2021 ◽  
Author(s):  
Mohd Sameeroddin ◽  
Md Kashif Gohar Deshmukh ◽  
Gandamalla Viswa ◽  
Mohammed Abdul Sattar
Keyword(s):  
Renewable Energy ◽  
Biomass Production ◽  
Fermentation Process

scholarly journals Regional Diversification of Potential, Production and Efficiency of Use of Biogas and Biomass in Poland

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 742
Author(s):  
Grzegorz Ślusarz ◽  
Barbara Gołębiewska ◽  
Marek Cierpiał-Wolan ◽  
Jarosław Gołębiewski ◽  
Dariusz Twaróg ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Biomass Production ◽  
Biogas Production ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Efficiency Frontier ◽  
The European Union ◽  
Production Potential ◽  
Solid Biomass ◽  
High Share

Energy obtained from renewable sources is an important element of the sustainable development strategy of the European Union and its member states. The aim of this research is, therefore, to assess the potential and use of renewable energy sources and their effectiveness from the regional perspective in Poland. The research covered the years 2012 and 2018. The diversification of production and potential of renewable energy sources was defined on the basis of biogas and biomass. Calculations made using the data envelopment analysis (DEA) method showed that, in 2012, only three voivodeships achieved the highest efficiency in terms of the use of biogas and biomass resources; in 2018, this number increased to four. Comparing the effective units in 2012 and 2018, it can be seen that their efficiency frontier moved upwards by 56% in terms of biogas and 21% in terms of to biomass. Despite a large relative increase in the production of heat from biogas by 99% compared to the production of heat from biomass by 38%, the efficiency frontier for biogas did not change considerably. It was found that the resources of solid biomass are used far more intensively than the resources of biogas. However, in the case of biogas, a significant increase in the utilization of the production potential was observed: from 3.3% in 2012 to 6.4% in 2018, whereas in the same years, the utilization of solid biomass production potential remained at the same level (15.3% in 2012, 15.4% in 2018). It was also observed that, at the level of voivodeships, the utilization of biogas and biomass production potential is negatively correlated with the size of this potential. The combined potential of solid biomass and biogas can cover the demand of each of the studied regions in Poland in terms of thermal energy. The coverage ranges from 104% to 1402%. The results show that when comparing biomass and biogas, the production of both electricity and heat was dominated by solid biomass. Its high share occurred especially in voivodeships characterized by a high share of forest area and a low potential for biogas production (Lubuskie Voivodeship, Zachodniopomorskie Voivodeship).

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 Sugarcane Biomass Production and Renewable Energy

2015 ◽  
pp. 3-20
Author(s):  
Moses Isabirye ◽  
D Raju ◽  
M Kitutu ◽  
V Yemeline ◽  
J Deckers ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Biomass Production

scholarly journals Biomass production as renewable energy resource at reclaimed Serbian lignite open-cast mines

2015 ◽  
Vol 19 (3) ◽  
pp. 823-835
Author(s):  
Milan Jakovljevic ◽  
Nikola Lilic ◽  
Bozo Kolonja ◽  
Dinko Knezevic ◽  
Marija Petric ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Dynamic Model ◽  
Biomass Production ◽  
Energy Resource ◽  
Electrical Energy ◽  
Coal Production ◽  
Coal Basin ◽  
Waste Dumps ◽  
Production Modeling ◽  
Open Cast

The main goal of this paper is the overview of the scope and dynamics of biomass production as a renewable energy source for substitution of coal in the production of electrical energy in the Kolubara coal basin. In order to successfully realize this goal, it was necessary to develop a dynamic model of the process of coal production, overburden dumping and re-cultivation of dumping sites by biomass planting. The results obtained by simulation of the dynamic model of biomass production in Kolubara mine basin until year 2045 show that 6870 hectares of overburden waste dumps will be re-cultivated by biomass plantations. Biomass production modeling point out the significant benefits of biomass production by planting the willow Salix viminalis cultivated for energy purposes. Under these conditions, a 0.6 % participation of biomass at the end of the period of intensive coal production, year 2037, is achieved. With the decrease of coal production to 15 million tons per year, this percentage steeply rises to 1.4 % in 2045. This amount of equivalent tons of coal from biomass can be used for coal substitution in the production of electrical energy.

scholarly journals Analysis of Potential Biogas Production from a Mixture of Palm Oil Mill Effluent (POME) and Cow Dung

2021 ◽  
Vol 317 ◽  
pp. 04031
Author(s):  
Tiyo Agung Pambudi ◽  
Hadiyanto ◽  
Sri Widodo Agung Suedy
Keyword(s):  
Renewable Energy ◽  
Palm Oil ◽  
Methane Production ◽  
Fermentation Process ◽  
Loading Rate ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Palm Oil Mill Effluent ◽  
Cow Dung ◽  
Palm Oil Mill

POME or palm oil mill effluent is currently still a waste problem that has not been utilized optimally. POME waste has the potential for renewable energy in the form of biogas, but some research results have shown that production is not optimal, so the addition of cow dung needs to be done to increase biogas production because methanogen bacteria found in cow dung help to maximize the anaerobic fermentation process and methane production. This research was conducted to determine the potential for biogas production from a mixture of POME and cow dung for 25 days by conducting a study of the biogas production process. The results of this study indicate that the biogas pressure increases with the addition of the loading rate, which is 101.102 N/m2/day to 101.107 N/m2/day with a daily biogas production of 0, 24247 liters/day with a total accumulation of biogas production for 25 days of 6.1 liters.

scholarly journals Fast-Growing Energy Crops Grown In Conditions Of Slovakia In The Context Of The EU Energy Policy

2015 ◽  
Vol 12 (1) ◽  
pp. 1-5
Author(s):  
Zuzana Jureková ◽  
Marián Kotrla ◽  
Martin Prčík ◽  
Martin Hauptvogl ◽  
Žaneta Pauková
Keyword(s):  
Renewable Energy ◽  
Biomass Production ◽  
Slovak Republic ◽  
Renewable Energy Sources ◽  
Energy Crops ◽  
Energy Sources ◽  
Miscanthus Sinensis ◽  
Low Carbon ◽  
Ecological Conditions ◽  
The Eu

Abstract The energy-efficient low-carbon EU economy (known as the 20-20-20) sets fundamental objectives in reducing greenhouse gas emissions (20%), increasing the share of renewable energy sources (20%) and saving primary energy consumption (20%). The objectives are incorporated in the National Renewable Energy Action Plans (NREAPs). Slovakia has to increase the share of renewable energy sources (RES) by 14% in its energy mix by 2020. Currently, the most widely used RES are water and solar energy, biomass and biogas. Our country has suitable ecological conditions for growing the so called energy crops in lowland and upland areas. So far, however, there is a lack of science-based information on the potential production of biomass in different soil-ecological and climatic conditions of the Slovak Republic. Our experimental research is focused on quantification of biomass production of various willow (genus Salix), poplar (genus Populus) and silvergrass (Miscanthus sinensis) varieties grown in ecological conditions of southern Slovakia. We evaluated the biomass production of the studied crops. The results were evaluated in terms of the EU call (2013): to obtain more energy while reducing inputs and negative environmental impacts.

PRODUKSI BIOETANOL MENGGUNAKAN BIOFILM SEL SACCHAROMYCES CEREVISIAE FNCC 3012 PADA PERMUKAAN BAGAS TEBU

EKUILIBIUM ◽  
2013 ◽  
Vol 12 (1) ◽  
Author(s):  
Margono Margono
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Renewable Energy ◽  
Production Process ◽  
Fermentation Process ◽  
Anaerobic Fermentation ◽  
Energy Resources ◽  
Second Step ◽  
Renewable Energy Resources ◽  
Biofilm Development ◽  
Downstream Processes

<p>Abstract: The policy of Indonesian Government on supporting renewable energy resources<br />developments has increased bioethanol research, both upstream or downstream processes. The<br />objective of this research was to improve bioethanol productivity using immobilized<br />Saccharomyces cerevisiaeFNCC 3012 on sugarcane baggase surfaces. Fermentation process<br />was devided into 2 steps, first was growth stepof developing biofilm and second step was<br />production process of bioethanol. Biofilm development was done for 72 hours by aerobic<br />fermentation and followed by anaerobic fermentation producing bioethanol for 72 hours. Some<br />volumetric flows of medium was implemented on the process, i.e. 1.44, 3.36 and 4.56 L/hr. The<br />best concumption of glucose in this research was showed by 20 g/L glucose in input and 0.15 g/L<br />glucose in the output medium. The increasing flowrate of medium into bioreactor results on<br />decreasing of bioethanol concentration in output of the bioreactor. The optimum medium flowrate<br />was 1.44 L/hrwhich was producing bioethanol concentration of 8.75% v/v.<br />Keywords: bioethanol, sugarcane baggase, biofilm, Saccharomyces cerevisiae FNCC 3012</p>

Fermentasi etanol menggunakan bakteri Zymonas mobilis dari glukosa hasil hidrolisa enzimatik bagas

2018 ◽  
Vol 6 (2) ◽  
pp. 609
Author(s):  
S Saraswati
Keyword(s):  
Renewable Energy ◽  
Enzymatic Hydrolysis ◽  
Zymomonas Mobilis ◽  
Alternative Energy ◽  
Fermentation Process ◽  
Raw Material ◽  
Second Step ◽  
Chemical Pretreatment ◽  
Cellulase Enzyme ◽  
Hydrolysis Of

The resources and reserves of oil which is a non renewable energy are very limited, while the oil consumption is increasing continuously. It is necessary to look for alternative energy. Etanol, a liquid energy, is a renewable alternative energy. Glucose can be used as raw material for etanol production. Glucose can be obtained by enzymatic hydrolysis of bagasse which is a solid waste of sugar canefactory. The objective of this research was to get the optimum condition of etanol production using bagasse as raw material. The experimental research consisted of 2 steps. First step : enzymatic hydrolysis of bagasse with chemical pretreatment process, and the second step was fermentation process using Zymomonas mobilis bacteria. Variables of thefirst step were the NaOH concentration (5%, 7% and 9%) as a pretreatment agent, and cellulase enzyme used (30, 40 and 50 cellulase enzyme  units/gram bagasse). For the second step, the variables were glucose concentration (I2.5%, 15%, 20%, 22.5%, and 25%) and the fermentation time (20, 24, 28, 32, 36, 40 and 48 hours). The experiment showed that the best result of the enzymatic hydrolysis could be obtained by NaOH 7% as chemical pretreatment agent and using 50 units of cellulase enzyme/gram bagasse. The cellulose conversion of bagasse was 87% within 42 hours period time. The highest etanol concentration of the fermentation process was 9.238% (weight %) and the yield was 0.4912 grams etanol/gram glucose. It was reached by using 22.5% glucose during 48 hours fermentation  time.Keywords: etanol; fermentation; Zymomonas mobilis; glucose; hydrolysis; cellulase enzyme; pretreatment;bagasse AbstrakCadangan minyak bumi yang merupakan non renewable energy (energi tak terbarukan) sangat terbatas, sedang konsumsinya terus meningkat.  Untuk itu perlu  dicari energi alternatif. Etanol merupakan salah satu energi cair alternatif yang terbarukan (renewable). Bahan baku etanol antara lain adalah glukosa. Glukosa dapat diperoleh dari hidrolisa enzimatik bagas yang merupakan limbah pabrik gula. Penelitian ini bertujuan  untuk  mendapatkan  kondisi yang  optimum  dari pembuatan  etanol  dengan  bahan baku bagas. Penelitian  experimental  meliputi  dua tahap.  Tahap I  : proses  hidrolisa  enzimatik  dari bagas dengan perlakuan pendahuluan  (pretreatment), dan tahap II adalah proses fermentasi  dengan bakteri Zymomonas  mobilis.  Variabel pada  tahap I  adalah  konsentrasi  NaOH  sebagai  pretreatment   agent sebesar 5%, 7% dan 9% serta pemakaian enzim selulase : 30, 40 dan 50 unit enzim selulase/gram bagas. Variabel untuk tahap II  adalah konsentrasi glukosa:  12.5%,  15%, 20%, 22.5%  dan 25% dan waktu fermentasi  20, 24, 28, 32, 36, 40  dan 48 jam.  Hasil penelitian  menunjukkan  bahwa  untuk  hidrolisa enzimatik hasil yang terbaik diperoleh dengan NaOH 7% dan 50 unit enzim selulase/gram bagas dengan konversi selulosa 87% dan waktu 42 jam. Untuk fermentasi kadar etanol tertinggi diperoleh pada konsentrasi glukosa 22.5% yaitu sebesar 9.238%, waktu 48 jam dan yield 0.4912 gram etanollgram glukosa.Kata Kunci: etanol; fennentasi; Zymomonas mobilis; glukosa; hidrolisa ; enzim selulase; pretreatment; bagas.

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