scholarly journals Physicochemical Characterisation and the Prospects of Biofuel Production from Rubberwood Sawdust and Sewage Sludge

2021 ◽  
Vol 13 (11) ◽  
pp. 5942
Author(s):  
Liaqat Ali ◽  
Khurshid Ahmed Baloch ◽  
Arkom Palamanit ◽  
Shan Ali Raza ◽  
Sawanya Laohaprapanon ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Physicochemical Properties ◽  
Fossil Fuels ◽  
Proximate Analysis ◽  
Raw Material ◽  
Biofuel Production ◽  
Energy Potential ◽  
Degradation Behaviour ◽  
Heating Value ◽  
Liquid Products

This study aims to evaluate the physicochemical properties of rubberwood sawdust (RWS) and sewage sludge (SS) for producing biofuel or liquid products via pyrolysis and co-pyrolysis. The chemical and thermal properties of both samples were observed to have superior bioenergy production capabilities. RWS and SS had significantly different physicochemical properties, such as particle-size distribution, bulk density, ultimate and proximate analysis, lignocellulose composition, thermal-degradation behaviour, and major and minor elements. The composition of extractives was found to only marginally affect the end product. Carbon and hydrogen content, the two main elements for biofuel enhancement, were found to correlate with the organic components of both RWS (48.49, 7.15 wt.%) and SS (32.29, 4.06 wt.%). SS had a higher elemental composition of iron, calcium, and potassium than RWS. Both samples had a higher heating value of 13.98 to 21.01 MJ/kg and a lower heating value of 11.65 to 17.66 MJ/kg, a lesser energy potential than that of fossil fuels. The findings from these blends are relatively moderate due to the related lignocellulosic potential composition. The novel contribution of this research was to optimize the use of local waste materials as a new raw material for biofuel production that could serve as a sustainable fuel source.

Evaluasi Prediksi Higher Heating Value (HHV) Biomassa Berdasarkan Analisis Proksimat

2020 ◽  
Vol 4 (1) ◽  
pp. 1-7
Author(s):  
Made Dirgantara ◽  
Karelius Karelius ◽  
Marselin Devi Ariyanti, Sry Ayu K. Tamba
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
Key Words ◽  
Critical Analysis ◽  
Fossil Fuels ◽  
Calorific Value ◽  
Proximate Analysis ◽  
Heating Value ◽  
Bomb Calorimeter ◽  
Hhv Prediction

Abstrak – Biomassa merupakan salah satu energi terbarukan yang sangat mudah ditemui, ramah lingkungan dan cukup ekonomis. Keberadaan biomassa dapat dimaanfaatkan sebagai pengganti bahan bakar fosil, baik itu minyak bumi, gas alam maupun batu bara. Analisi diperlukan sebagai dasar biomassa sebagai energi seperti proksimat dan kalor. Analisis terpenting untuk menilai biomassa sebagai bahan bakar adalah nilai kalori atau higher heating value (HHV). HHV secara eksperimen diukur menggunakan bomb calorimeter, namun pengukuran ini kurang efektif, karena memerlukan waktu serta biaya yang tinggi. Penelitian mengenai prediksi HHV berdasarkan analisis proksimat telah dilakukan sehingga dapat mempermudah dan menghemat biaya yang diperlukan peneliti. Dalam makalah ini dibahas evaluasi persamaan untuk memprediksi HHV berdasarkan analisis proksimat pada biomassa berdasarkan data dari penelitian sebelumnya. Prediksi nilai HHV menggunakan lima persamaan yang dievaluasi dengan 25 data proksimat biomassa dari penelitian sebelumnya, kemudian dibandingkan berdasarkan nilai error untuk mendapatkan prediksi terbaik. Hasil analisis menunjukan, persamaan A terbaik di 7 biomassa, B di 6 biomassa, C di 6 biomassa, D di 5 biomassa dan E di 1 biomassa.Kata kunci: bahan bakar, biomassa, higher heating value, nilai error, proksimat  Abstract – Biomass is a renewable energy that is very easy to find, environmentally friendly, and quite economical. The existence of biomass can be used as a substitute for fossil fuels, both oil, natural gas, and coal. Analyzes are needed as a basis for biomass as energy such as proximate and heat. The most critical analysis to assess biomass as fuel is the calorific value or higher heating value (HHV). HHV is experimentally measured using a bomb calorimeter, but this measurement is less effective because it requires time and high costs. Research on the prediction of HHV based on proximate analysis has been carried out so that it can simplify and save costs needed by researchers. In this paper, the evaluation of equations is discussed to predict HHV based on proximate analysis on biomass-based on data from previous studies. HHV prediction values using five equations were evaluated with 25 proximate biomass data from previous studies, then compared based on error value to get the best predictions. The analysis shows that Equation A predicts best in 7 biomass, B in 6 biomass, C in 6 biomass, D in 5 biomass, and E in 1 biomass. Key words: fuel, biomass, higher heating value, error value, proximate 

THE BIOENERGY CROPS MARKET IN UKRAINE: TRENDS OF DEVELOPMENT AND SPATIAL DIFFERENTIATION

2017 ◽  
Author(s):  
Yuriy Hayda ◽  
◽  
Khrystyna Firman ◽  
Keyword(s):  
Sugar Beet ◽  
Agricultural Sector ◽  
Spatial Differentiation ◽  
Raw Material ◽  
Biofuel Production ◽  
Bioenergy Crops ◽  
Positive Trend ◽  
Energy Potential ◽  
Resource Base ◽  
Positive Tendency

In this article analyzes the development of trends of bioenergy crops market development in Ukraine and its current state are analysed. The possibility and feasibility of synergy of mutual development of bioenergy crops market and bio-oil market in Ukraine were noted. The necessity of state support and stimulation of bioenergy crops and different types of biofuels production in Ukraine was stated. A positive trend of growth of planted areas and production of rapeseed in Ukraine was revealed. During the study period (2013-2019) the production of rapeseed was increased by 1.4 times. The greatest energy potential for the production of bioethanol is in the sugar beet subcomplex of the agricultural sector. Over the past few years, the production of sugar beet was at its highest in 2014 (15.7 million tonnes), while the following years saw a decrease in cultivated areas of sugar beet and, consequently, a drop in its gross output - to 8.3 million tonnes in 2020. Significant resource potential for the production of bioethanol also have cereal crops (wheat, rye, barley, maize), the area under which during the last ten years remains relatively stable (14.4-15.3 million ha). Among grain crops the most effective raw material for the production of bioethanol is maize. A positive tendency of biennial growth of planted area under this crop is revealed. The space differentiation of resource base of bioenergy in Ukraine is prominent. The cluster analysis revealed three groups of areas based on the similarity of the energy resources for bioenergy purposes. Two clusters including Khmelnytskyi, Ternopil, Zhytomyr and Chernihiv, Vinnytsia, Cherkasy, Sumy, Kirovograd, Poltava and Kyiv regions should be considered as the most promising areas for concentration of capacities in biofuel production. It is noted that the trajectory of development bioenergetic sector of the country is always conditioned by compromise between compliance with optimal levels of its energy and food security.

scholarly journals A short review on the potential of coffee husk gasification for sustainable energy in Uganda

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 1809 ◽  
Author(s):  
Gilbert John Miito ◽  
Noble Banadda
Keyword(s):  
Fossil Fuels ◽  
Short Review ◽  
Energy Market ◽  
Energy Potential ◽  
Coffee Production ◽  
Heating Value ◽  
Coffee Husk ◽  
Gasification Process ◽  
High Dependency ◽  
Coffee Farmers

Agricultural biomass is widely recognized as a clean and renewable energy source, with increasing potential to replace conventional fossil fuels in the energy market. Uganda, like other developing countries, has a high dependency (91%) on wood fuel, leading to environmental degradation. With a coffee production of 233 Metric Tonnes per annum, relating to 46.6 Mega Tonnes of coffee husks from processing, transforming these husks into syngas through gasification can contribute to resolving the existing energy challenges. The objective of this article is to briefly review the energy potential of coffee husks through gasification, and how the gasification process could increase energy recoveries for coffee farmers. Previous  findings indicate that the 46.6 Mega Tonnes per year of coffee husks generated in Uganda, with a heating value of 18.34 MJ/kg, is capable of generating 24 GWh of energy. This will address a 0.7% portion of the energy situation in Uganda, while protecting the environment.

scholarly journals ENHANCEMENT OF THE CALORIFIC VALUE OF EM1707PTY FRUIT BUNCH (EFB) BY ADDING MUNICIPAL SOLID WASTE AS SOLID FUEL IN GASIFICATION PROCESS

2021 ◽  
Vol 22 (2) ◽  
pp. 10-20
Author(s):  
Amadou Dioulde Donghol Diallo ◽  
Ma’an Fahmi Rashid Alkhatib ◽  
Md Zahangir Alam ◽  
Maizirwan Mel
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Calorific Value ◽  
Clean Energy ◽  
Proximate Analysis ◽  
Raw Material ◽  
Environmental Benefit ◽  
Gasification Process

Empty fruit bunch (EFB), a biomass-based waste, was deemed a potential replacement for fossil fuel. It is renewable and carbon neutral. The efficient management of this potential energy will help to deal with the problem associated with fossil fuels. However, a key parameter for evaluating the quality of raw material (EFB) as a fuel in energy applications is the calorific value (CV). When this CV is low, then its potential utilization as feedstock will be restricted. To tackle this shortcoming, we propose to add municipal solid waste to enhance energetic value. Thus, two major issues will be solved: managing solid residues and contributing an alternative energy source. This study aimed to investigate the possibility of mixing EFB and municipal solid waste (MSW) to make clean energy that is conscious of the environment (climate change) and sustainable development. The selected MSW, comprising of plastics, textiles, foam, and cardboard, were mixed, with EFB at various ratios. Proximate analysis was used to determine moisture content, ash, volatiles, and fixed carbon, whilst elemental analysis, is used to determine CHNS/O for MSW, EFB and their various mixtures. The CV of each element was also measured. The research revealed a significant increase in the calorific value of EFB by mixing it with MSW according to MSW/EFB ratios: 0.25; 0.42; 0.66; 1.00 and 1.50 the corresponding calorific values in (MJ/kg) were 19.77; 21.22; 22.67; 27.04 and 28.47 respectively. While the calorific value of pure EFB was 16.86 MJ/kg, the mixing of EFB with MSW promoted the increase in the CV of EFB to an average of 23.83MJ/kg. Another potential environmental benefit of applying this likely fuel was the low chlorine (0.21 wt. % to 0.95 wt. %) and sulfur concentrations (0.041 wt. % to 0.078 wt.%). This potential fuel could be used as solid refuse fuel (SRF) or refuse-derived fuel (RDF) in a pyrolysis or gasification process with little to no environmental effects. ABSTRAK: Tandan buah kosong (EFB), sisa berasaskan biojisim, adalah berpotensi sebagai pengganti bahan bakar fosil. Ia boleh diperbaharui dan karbon neutral. Pengurusan berkesan pada potensi tenaga ini dapat membantu mengatasi masalah melibatkan bahan bakar fosil. Namun, kunci parameter bagi menilai kualiti bahan mentah (EFB) sebagai bahan bakar dalam aplikasi tenaga adalah nilai kalori (CV). Apabila CV rendah, potensi menjadi stok suapan adalah terhad. Sebagai penyelesaian, kajian ini mencadangkan sisa pepejal bandaran ditambah bagi meningkatkan nilai tenaga. Oleh itu, dua isu besar dapat diselesaikan: mengurus sisa pepejal dan menambah sumber tenaga alternatif. Kajian ini bertujuan mengkaji potensi campuran tandan buah kosong (EFB) dan sisa pepejal bandaran (MSW) bagi menghasilkan tenaga bersih dari sudut persekitaran (perubahan iklim) dan pembangunan lestari. Pemilihan MSW, terdiri daripada plastik, tekstil, gabus dan kadbod, dicampurlan dengan pelbagai nisbah EFB. Analisis proksimat telah digunakan bagi mendapatkan  kandungan kelembapan, abu, ruapan, dan karbon tetap, manakala analisis asas telah digunakan bagi mendapatkan CHNS/O bersama MSW, EFB dan pelbagai campuran lain. Nilai kalori (CV) setiap elemen turut diukur. Dapatan kajian menunjukkan penambahan ketara dalam nilai kalori EFB dengan campuran bersama MSW berdasarkan nisbah MSW/EFB 0.25; 0.42; 0.66; 1.00 dan 1.50 nilai kalori sepadan (MJ/kg) adalah 19.77; 21.22; 22.67; 27.04 dan 28.47 masing-masing. Manakala nilai kalori EFB tulen adalah 16.86 MJ/kg, campuran EFB dan MSW menunjukkan kenaikan CV dengan EFB pada purata 23.83MJ/kg. Antara potensi semula jadi lain adalah dengan mencampurkan bahan bakar ini dengan kalori rendah (0.21 wt. % kepada 0.95 wt. %) dan kepekatan sulfur (0.041 wt. % kepada 0.078 wt.%). Bahan bakar ini berpotensi sebagai bahan bakar pepejal sampah (SRF) atau bahan bakar yang terhasil dari pepejal sampah (RDF) melalui proses pirolisis atau proses gasifikasi yang sedikit atau tiada kesan langsung terhadap persekitaran.

scholarly journals Verification of the Green Microalgae Biomass Use for Biogas Production

2019 ◽  
Vol 16 (1) ◽  
pp. 15-19
Author(s):  
Natalia Głowacka ◽  
Ján Gaduš
Keyword(s):  
Fossil Fuels ◽  
Slovak Republic ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Material ◽  
Green Microalgae ◽  
Energy Potential ◽  
Research Results ◽  
Microalgae Biomass ◽  
The World

Abstract The article reviews the energy potential of microalgae as an alternative raw material for anaerobic digestion. Currently, energy security is one of the main topics among researchers. The amount of generated fossil fuels is limited, it is a question of time when fossil fuels will not continue to be accessible at low cost. There is a need to find an alternative carrier of energy which will replace the fossil fuels in the World. Green microalgae can be proposed as a possible bio raw-material, which can be used as an input material in order to produce energy. Lots of alternative technologies of algae cultivation are currently being developed all over the world. There is a necessity to search for a sensible way to produce algal biomass for bioenergy purposes, while maintaining all requirements involved in environmental and economic issues. The research results presented in the science article show that microalgae biomass is the proper alternative material for biogas production with the method of anaerobic fermentation. We believe that these research results can contribute to the future development of all forms of renewable energy in the Slovak Republic.

scholarly journals CARACTERIZAÇÃO FÍSICA E QUÍMICA DA BIOMASSA USADA COMO COMBUSTÍVEL SÓLIDO EM UMA CALDEIRA

Química Nova ◽  
2020 ◽  
Author(s):  
Natália Carvalho ◽  
João Barros ◽  
Diego Silva ◽  
Gabriela Nakashima ◽  
Fábio Yamaji
Keyword(s):  
Chemical Properties ◽  
Chemical Characterization ◽  
Proximate Analysis ◽  
Mechanical Resistance ◽  
Moisture Determination ◽  
Energy Potential ◽  
Heating Value ◽  
Physical And Chemical Characterization ◽  
Physical And Chemical

PHYSICAL AND CHEMICAL CHARACTERIZATION OF BIOMASS USED AS SOLID FUEL IN A BOILER. Biomass is a renewable energy source most used in the world, however, depending on the chemical properties and origin of the material used as biofuel, the amount of ash generated during combustion can be high, harming the energetic harnessing. The objective of this study was to characterize chemically and physically biomass: bark, sawdust, and urban pruning; used for energy generation. Also, part of the study was the physical characterization of briquettes produced from these materials. The analyzes performed to characterize the biomass were: moisture determination, higher heating value, proximate analysis and chemical composition - extractives, lignin and holocellulose contents. Subsequently, the biomass was briquetted and the mechanical properties of the briquettes were tested. The results showed that all biomass (bark, sawdust, and urban pruning) has the energy potential to be used in the industry. T1 briquettes (100% bark) showed the highest mechanical resistance. However, the formation of blends should be sought to minimize the ash content in the boiler. Thus, blends T2 and T3 can be considered as the best alternatives for the company.

scholarly journals Genetic engineering, a hope for sustainable biofuel production: review

2014 ◽  
Vol 3 (2) ◽  
pp. 311-323 ◽  
Author(s):  
Sudip Paudel ◽  
Michael A Menze
Keyword(s):  
Genetic Engineering ◽  
Fossil Fuels ◽  
Genetically Modified Organisms ◽  
Lipid Production ◽  
Genetically Engineered ◽  
Raw Material ◽  
Biofuel Production ◽  
Wild Type ◽  
Environment Friendly ◽  
Genetically Engineered Organisms

The use of recently developed genetic engineering tools in combination with organisms that have the potential to produce precursors for the production of biodiesel, promises a sustainable and environment friendly energy source. Enhanced lipid production in wild type and/or genetically engineered organisms can offer sufficient raw material for industrial transesterification of plant-based triglycerides. Bio-diesel, produced with the help of genetically modified organisms, might be one of the best alternatives to fossil fuels and to mitigate various environmental hazards. DOI: http://dx.doi.org/10.3126/ije.v3i2.10644 International Journal of the Environment Vol.3(2) 2014: 311-323

scholarly journals Physical, Chemical and Mechanical Properties of Two-Age Bambusa tuldoides Briquettes

2020 ◽  
Vol 3 (1) ◽  
pp. 85
Author(s):  
Dunja Zoe Powroschnik ◽  
Emanuel Rangel Spadim ◽  
Humberto Jesus Eufrade-Junior ◽  
Elaine Cristina Leonello ◽  
Saulo Philipe Sebastião Guerra
Keyword(s):  
Fossil Fuels ◽  
Chemical Properties ◽  
Energy Generation ◽  
Proximate Analysis ◽  
Heating Value ◽  
Physical Chemical ◽  
Bambusa Vulgaris ◽  
Mechanical Durability ◽  
Physical And Chemical ◽  
And Chemical Properties

The use of natural resources as an energy source is a well-studied alternative to fossil fuels. Some studies present bamboo as promising biomass for energy generation, and its transformation into briquettes can be a way to take advantage of its production residues. This study’s objective was to determine the physical and chemical properties of two bamboo ages (two and seven years old) of Bambusa vulgaris species to evaluate biomass quality and its briquettes for energy generation. Regarding the higher heating value, there was no difference between treatments means values, which were 17.8 and 18.2 MJ kg−1 for two and seven years old, respectively, and these values were slightly below those found in the literature for Bambusa spp. The mechanical durability was of low quality for both treatments at the testing conditions, so they are not recommended for briquette production. The proximate analysis results were quite near the literature and reinforce bamboo’s positive qualities for biofuel usage.

scholarly journals The Bioconversion of Sewage Sludge to Bio-Fuel: The Environmental and Economic Benefits

Materials ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2417 ◽  
Author(s):  
Adam Smoliński ◽  
Janusz Karwot ◽  
Jan Bondaruk ◽  
Andrzej Bąk
Keyword(s):  
Sewage Sludge ◽  
Fossil Fuels ◽  
Waste Water Treatment ◽  
Calorific Value ◽  
Dry Mass ◽  
Economic Benefits ◽  
Economic Feasibility ◽  
Hard Coal ◽  
Energy Potential ◽  
Industrial Energy

This paper aims to analyze the economic feasibility of generating a novel, innovative biofuel—bioenergy—obtained from deposit bio-components by means of a pilot installation of sewage sludge bio-conversion. Fuel produced from sewage sludge biomass bears the potential of being considered a renewable energy source. In the present study, 23 bioconversion cycles were conducted taking into consideration the different contents, types of high carbohydrate additives, moisture content of the mixture as well as the shape of the bed elements. The biofuel was produced using post fermentation sewage sludge for industrial energy and heat generation. Based on the presented research it was concluded that the composite biofuel can be co-combusted with hard coal with the optimal percentage share within the range of 20–30% w/w. Sewage sludge stabilized by means of anaerobic digestion carried out in closed fermentation chambers is the final product. The average values of the CO2, CO, NO, NOx and SO2 concentrations in flue gas from co-combustion of a bioconversion product (20% w/w) and coal were 5.43%, 1903 ppm, 300 ppm, 303 ppm and 179 ppm, respectively. In total, within a period of 4.5 years of the plant operation, 1853 Mg of fuel was produced and successfully co-combusted with coal in a power plant. The research demonstrated that in the waste water treatment sector there exists energy potential in terms of calorific value which translates into tangible benefits both in the context of energy generation as well as environmental protection. Over 700,000 Mg of bio-sewage sludge is generated annually in Poland. According to findings of the study presented in the paper, the proposed solution could give 970,000 Mg of dry mass of biomass qualified as energy biomass replacing fossil fuels.

scholarly journals LOW HEATING VALUE PREDICTION FROM PROXIMATE ANALYSIS FOR SEWAGE SLUDGE SAMPLES

2018 ◽  
Author(s):  
Agnes Serbanescu ◽  
◽  
Mona Barbu ◽  
Ileana Nicolescu ◽  
Georgeta Madalina Arama
Keyword(s):  
Sewage Sludge ◽  
Proximate Analysis ◽  
Heating Value ◽  
Value Prediction
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