scholarly journals Waste of rice straw as renewable energy: An overview of the potential availability, content, and production process

2021 ◽  
Vol 1098 (6) ◽  
pp. 062070
Author(s):  
A Ana ◽  
I Khoerunnisa ◽  
M Muktiarni ◽  
V Dwiyanti ◽  
A Maosul
Keyword(s):  
Renewable Energy ◽  
Production Process ◽  
Rice Straw ◽  
Potential Availability

Establishment of a novel technology permitting self-sufficient, renewable energy from rice straw in paddy fields

2020 ◽  
Vol 272 ◽  
pp. 122721
Author(s):  
Chen Shaohua ◽  
Hirotatsu Murano ◽  
Tatsuya Hirano ◽  
Yoshiaki Hayashi ◽  
Hiroto Tamura
Keyword(s):  
Renewable Energy ◽  
Rice Straw ◽  
Paddy Fields ◽  
Novel Technology

UJI KINERJA PADA PROSES PRODUKSI ETANOL MELALUI KOMBINASI PROSES FERMENTASI DAN STRIPPING

EKUILIBIUM ◽  
2012 ◽  
Vol 11 (2) ◽  
Author(s):  
Margono Margono
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Renewable Energy ◽  
Production Process ◽  
Ethanol Production ◽  
Anaerobic Fermentation ◽  
Fermentation Medium ◽  
High Price ◽  
Trickle Bed ◽  
Trickle Bed Bioreactor ◽  
Biofilm Development

<p><strong><em>Abstract:</em></strong> <em>Renewable energy necesity have promote research on ethanol production technology. Ethanol is the potential renewable energy substituting gasoline. However, the conventional problem is high price of the ethanol. The objective of this research was to test the performance of alternative process in producing ethanol, i.e. combination of fermentation process with ethanol stripping in trickle bed bioreactor. The experimental was using Saccharomyces cerevisiae FNCC 3012 and sugarcane bagass as bed particle. It was devided into 2 process steps of biofilm development and ethanol production. Biofilm development was done by circulating medium in bioreactor aerobically. Duration of the biofilm development was 24 hours and followed by ethanol production step which was combinating anaerobic fermentation and stripping process using nitrogen. Production process was conducted for 36 hours lifetime. This method resulted biofilm developing in fermentation medium, not on baggas surfaces. Consequently, ethanol production happened in circulated fermentation medium. The productivity of this method of ethanol production process was not better than the conventional process. Neverherless, the experimental showed that the product stripping and fermentation could be done simultaneously. The stripping process increased ethanol product concentration up to 25% higher than in the broth</em>.</p><p> <strong><em>Keywords:</em></strong> <em>ethanol, Saccharomyces cerevisiae FNCC 3012, trickle bed bioreactor, stripping, biofilm</em></p>

scholarly journals Energi Terbarukan dari Jerami Padi : Review Potensi dan Tantangan Bagi Indonesia

2020 ◽  
Vol 7 (2) ◽  
pp. 137-146
Author(s):  
Agus Haryanto ◽  
Siti Suharyatun ◽  
Winda Rahmawati ◽  
Sugeng Triyono
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Rice Straw ◽  
Energy Technology ◽  
Energy Potential ◽  
High Quality ◽  
Combustion Properties ◽  
Density Problem ◽  
Conversion Technologies ◽  
And Storage

Straw is a waste produced from the threshing and harvesting of rice. So far, rice straw has only been removed. In fact, it can be used as a potential energy source. This paper aims to examine the potential of rice straw as a renewable energy source in Indonesia. Opportunities and challenges were evaluated based on extensive and in-depth literature review. The paper discussed rice straw potential, its characteristics and benefits of using straw energy. Technology to convert rice straw into energy was also discussed. Results showed that renewable energy potential of rice straw is 28.8 TJ/year. Conversion technologies that can be applied include densification, combustion, gasification, and biogas. The biggest challenge for using rice straw energy is collection and transportation. Densification may overcome density problem by producing high quality pellets or briquettes that reduce transportation and storage costs. Straw characteristics need to be improved to increase its combustion properties.

scholarly journals Processing and Characterisation of Charcoal Briquettes Made from Waste Rice Straw as A Renewable Energy Alternative

2021 ◽  
Vol 2080 (1) ◽  
pp. 012014
Author(s):  
Syed Nuzul Fadzli Syed Adam ◽  
Jamil Haer Muhammad Aiman ◽  
Firuz Zainuddin ◽  
Yahya Hamdan
Keyword(s):  
Compressive Strength ◽  
Renewable Energy ◽  
Bulk Density ◽  
Rice Straw ◽  
Environmental Problem ◽  
Corn Starch ◽  
Ignition Time ◽  
Ash Content ◽  
Tapioca Starch ◽  
Open Firing

Abstract In Malaysia, waste paddy plant after rice harvesting were abundant and have no commercial value and significant usage. This paddy waste is commonly burnt on the landfilled which cause open firing and leads to environmental problem. This study determines the potential of rice straw waste for charcoal briquette production and study the effect of using different binders (corn and tapioca starch) in making the briquettes. Raw rice straws were combusted at 260°C for 4 hours in oven to form char powder. Corn starch and tapioca starch used as binder and each of them was mixed with char powder before compacted into briquettes. Each briquette was characterized in terms of their bulk density, moisture content, ash content, compressive strength and flammable characteristics. It was found that corn starch-charcoal briquette showed higher ash content, higher bulk density and compressive strength up to 68 MPa. Increased of both binders has increased the bulk density and compressive strength of briquettes. Both type of charcoal briquettes showed similar ignition time and burning characteristic, approximately at 18 minutes and 0.08 gm/min respectively.

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>

scholarly journals Selection of the Most Sustainable Renewable Energy System for Bozcaada Island: Wind vs. Photovoltaic

2019 ◽  
Vol 11 (15) ◽  
pp. 4098 ◽  
Author(s):  
Elif Oğuz ◽  
Ayşe Eylül Şentürk
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Production Process ◽  
Life Cycle Cost ◽  
Energy Production ◽  
Economic Impacts ◽  
Unit Cost ◽  
Energy Systems ◽  
Renewable Energy Systems ◽  
Photovoltaic Power

Energy production without destroying the environment has been one of the most crucial issues for people living in today’s world. In order to analyze whole environmental and/or economic impacts of the energy production process, life cycle assessment (LCA) and life cycle cost (LCC) are widely used. In this study, two distinct renewable energy systems are assessed. First, a land-based wind farm, which has been operating in Bozcaada Island since 2000, is compared to a proposed solar photovoltaic power plant in terms of Energy Pay-Back Time (EPBT) periods and greenhouse gas (GHG) emissions and life cycle cost. The energy production process including the recycling phase evaluated “from cradle to grave” using GaBi software for both cases. All scenarios are compared by considering different impact categories such as global warming potential (GWP), acidification potential (AP), and eutrophication potential (EP). Following this, levelized unit cost to produce 1 MWh electricity (LUCE) is calculated for both systems. This study revealed that LCA and LCCA are useful and practical tools that help to determine drawbacks and benefits of different renewable energy systems considering their long-term environmental and economic impacts. Our findings show that onshore wind farms have a number of benefits than proposed photovoltaic power plants in terms of environmental and cost aspects.

Regional Renewable Energy India: Bioethanol From Rice Straw

2016 ◽  
Vol 3 (3-4) ◽  
pp. 53-57
Author(s):  
Renu Singh ◽  
Monika Srivastava
Keyword(s):  
Renewable Energy ◽  
Rice Straw

scholarly journals Barriers to the adoption of circular economy in the Brazilian sugarcane ethanol sector

2021 ◽  
Author(s):  
Géssica K Jesus ◽  
Daniel Jugend ◽  
Luis Alberto B Paes ◽  
Regiane M Siqueira ◽  
Matheus A Leandrin
Keyword(s):  
Renewable Energy ◽  
Production Process ◽  
Case Studies ◽  
Emerging Economies ◽  
Analytical Hierarchy Process ◽  
Circular Economy ◽  
Energy Sector ◽  
Brazilian Legislation ◽  
Hierarchy Process ◽  
Process Method

Abstract Brazil plays a prominent role in the global production of sugarcane and contributes to the renewable energy sector by producing ethanol. However, few studies have explored the adoption of the circular economy in the sugarcane ethanol sector. This article is aimed at analyzing and prioritizing barriers to the adoption of the circular economy in leading Brazilian sugarcane ethanol companies. For this, the analytical hierarchy process method and case studies methods were used. The main barriers identified were economic and financial, mainly due to dependence on high investments in production process technologies and the resulting uncertainties about returns. Another barrier was the lack of Brazilian legislation concerning the circular economy. We discuss the implications of our findings and present mechanisms for overcoming barriers and the role in supporting circular economy adoption in emerging economies.

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