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

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.

2018 ◽  
Vol 2 (2) ◽  
pp. 93-103
Author(s):  
Ade Ariesmayana ◽  
Fitri Dwirani

ABSTRAK Penelitian ini memberikan solusi dalam alternatif energi terbarukan dengan memanfaatkan sampah kota (municipal solid waste) dari sumber Tempat Pembuangan Akhir  Sampah (TPA) Cilowong, Kota Serang. Penelitian ini bertujuan untuk menguji karakteristik sampah Kota Serang, yang meliputi Uji  Proksimat (proximate analysis), Uji Ultimat (ultimate analysis), Kadar Air Sampah dan Uji Nilai Kalor, serta mengetahui seberapa potensialkah timbulan sampah Kota Serang sebagai energi alternatif pengganti bahan bakar fosil. Penelitian dilakukan pada kawasan TPA Cilowong, Kota Serang. Pada laporan ini dibatasi hanya pada perhitungan Kadar Air Sampah. Metode penelitian yang  digunakan adalah dengan pengujian laboratorium dan analisis kelayakan karakteristik sampah. Teknik penelitian yaitu  dengan melakukan survei dan obervasi ke TPAS Cilowong serta wawancara mendalam dengan dinas terkait dan masyarakat yang tinggal di sekitar kawasan tersebut. Hasil penelitian ini adalah kelayakan sampah kota Serang sebagai energi alternatif pengganti bahan bakar fosil.   Kata Kunci: Energi Alternatif, Kadar Air Sampah, TPA Cilowong     ABSTRACT This research provides solutions in alternative renewable energy by utilizing municipal solid waste from the source of the Cilowong Waste Disposal Site (TPA), Serang City. This study aims to examine the characteristics of the city of Serang waste, which includes the Proximate Test (proximate analysis), Ultimate Analysis, Waste Water Content and Calorific Value Test, and find out the potential waste generation of Serang City as an alternative energy to replace fossil fuels. The study was conducted in the Cilowong landfill area, Serang City. This report is limited only to the calculation of Waste Water Content. The research method used is laboratory testing and analysis of the characteristics of waste characteristics. The research technique is by conducting surveys and observations to the Cilowong TPAS as well as in-depth interviews with related agencies and the people living around the area. The results of this study are the feasibility of municipal waste as an alternative energy substitute for fossil fuels.   Keywords: Alternative Energy, Waste Water Content, Cilowong Landfill


2013 ◽  
Vol 12 (2) ◽  
pp. 34
Author(s):  
J. A. Meystre ◽  
R. J. Silva

The objective of this paper is to present an analysis of coprocessing in a cement production plant using Municipal Solid Waste - MSW as a secondary fuel and show the main advantages that burn into a incineration plant. The manufacture of Portland cement is a process that requires a large consumption of thermal and electrical energy and front of the immense worldwide energetic demand has increased its value every day. The typical operating cost involving this energy achieves 40% of the final product and due to increasing world consumption justifies the efforts to reduce the costs associated with its production. The use of high efficiency equipment coupled with the replacement of fossil fuels and conventional raw material for alternative products has given good results. The method of disposal of MSW in landfills in large urban centers is being used less and less. The creation of environmental laws increasingly severe shortages of allied areas not disturbed and the high cost of construction and operation of landfills hinders its viability. Moreover, there is a problem related to the emissions  of gaseous and liquid effluents that help raise the cost for its control and treatment. The MSW, when recovered and separated, can become recyclable products and as energy sources. After separation of the usable material (organic matter and recyclable), remaining MSW materials with sufficient calorific value can be used in kilns to produce clinker. Moreover, the ash resulting from combustion may be incorporated in the clinker decreasing the initial amount of raw material. The use of MSW as alternative fuel has shown to be feasible in the clinker kiln, but their use is still limited by their availability, since their segregation is rarely practiced. The substitution of alternative inputs introduce restrictions to the process which must be safely handled in order to ensure the minimum quality and productivity of cement production plants. The use of MSW must have a thorough characterization of your composition, because of directly influences in the final product.


2019 ◽  
Vol 3 (1) ◽  
pp. 29
Author(s):  
Ucik Ika Fenti Styana ◽  
Rosiana Indrawati ◽  
Muhammad Sigit Cahyono

<p class="Default"><em>One of the abundant energy source in Indonesia is organic waste in the form of leafs and branches which is widely avalilable in homeyard. It can be utilized as alternative energy source by gasification process. The objective of the study was to know the influence of raw material and AFR to the characteristic of organic waste gasification process. The raw material used were leafs and branches of melinjo (gnetum gnemon) which obtained from homeyard of inhabitant in Sidomoyo village, Godean sub-district, Sleman Regency, Indonesia. Before being gasified, it was prepared for proximate analysis in laboratorium. The gasification begins by feeding the raw material to the reactor with variation of 100% leaf, 100% branch, and 50%-50% leaf and branch. The gasification process was occured in reactor for one hour, and syn gas which produced has been analized to know the composition of it. Result shows that raw material have influenced the characteristic of gasification process. The highest heating rate was occured for gasification process of 100% leaf and AFR 0.5, which it gas has burned after 25 minuted process in oxidation temperature of 650 <sup>0</sup>C, reduction temperature of 350 <sup>0</sup>C, and pyrolysis temperature of 240 <sup>0</sup>C.</em></p>


2019 ◽  
Vol 137 ◽  
pp. 01022 ◽  
Author(s):  
Katarzyna Stolecka ◽  
Andrzej Rusin

Energy needs of many countries are largely covered by energy obtained from fossil fuels. This in turn involves environmental pollution and greenhouse gas emissions. The growing environmental awareness and the need to prevent climate changes mean that clean energy and alternative energy sources are still a significant research issue. One of the most important technologies for efficient and low-carbon energy generation is the gasification process and synthesis gas production. Worldwide, there are now more than 270 such installations. More installations are under construction. Syngas is a mixture of hydrogen and carbon monoxide. Depending on the feedstock, it can also contain smaller amounts of carbon dioxide, methane and nitrogen. The gasification process consists of four stages: syngas production, storage, transport and utilization, e.g. as fuel. Because syngas is mainly composed of flammable and toxic gases, in the event of an uncontrolled release into the atmosphere these processes may pose a potential hazard to humans and the environment. The paper presents the results of analyses related to hazards resulting from an uncontrolled release of gas at the stage of the gas storage, before it is transported or finally used. Hazard scenarios are presented and the probability of their occurrence as well as the consequences for humans and the environment are determined.


SAGE Open ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 215824402110613
Author(s):  
Rafiq Muhammad Aftab ◽  
Liguo Zhang ◽  
Chih-Chun Kung

Development of renewable energy is important to modern society because climate change induced from fossil use has resulted in severe and possibly irreversible environmental impacts such as sea level rise, desertification, diminished land productivity, and increased possibility of extreme events. Therefore, the utilization of renewable and clean energy not only increases regional energy security but also alleviate the environmental risk. In this study, we employ the lifecycle assessment to examine the electricity generation from the use of municipal solid waste in China, and then investigate the emission reduction from this application. Different supply patterns of the wastes are also compared to make the results more robust. The results show that if recycled wastes are fully utilized, approximately 11,107 GWh can be generated, along with a profit of $1.2 billion from energy sales. In this case, the CO2 emission will reduce by 9.7 million metric tons. If the food waste is used in compositing and animal feed, the net power generation and emission reduction are about 8,216 GWh and 7.32 million metric tons, respectively. If additional 30% of recycled wastes are assumed to be utilized in their past use, the power generation, profit, and emission reduction will further decrease to 5,750 GWh, $697 million, and 5.12 metric tons, respectively. The results point out that the utilization of recycled wastes can effectively reduce the reliance on fossil fuels, improve energy security, and increase social welfare. Insights of the results and policy implications are also discussed in detail.


2021 ◽  
Vol 10 (1) ◽  
pp. 09-15
Author(s):  
I Wayan Koko Suryawan ◽  
I Made Wahyu Wijaya ◽  
Novi Kartika Sari ◽  
Iva Yenis Septiariva ◽  
Nurulbaiti Listyendah Zahra

The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of the updates on sustainable waste processing is the RDF treatment plant processing. Before carrying out the processing, MSW characterization is needed because each region has a diverse composition. The processing of MSW into RDF provides benefits for achieving MSW reduction targets, renewable energy use, and the reduction of greenhouse gas (GHG) emissions. For this reason, this study was conducted to determine the potential of MSW in Bali as an alternative to renewable fuel and its potential to reduce GHG. MSW's potential calorific value as a raw material for RDF in Bali can reach 9.58 - 17.71 MJ/kg. The implementation of processing waste into RDF in pellets has shown a calorific value of ± 3904 - 4945 kkcal/kg. Implementing MSW processing into RDF in Bali can reduce GHG by 178 - 330 times compared to open dumping.


2021 ◽  
pp. 0734242X2098560
Author(s):  
Faisal Zia Siddiqui ◽  
M Humam Zaim Faruqi ◽  
Suneel Pandey ◽  
Mohd Emran Khan

The enormous quantities of municipal solid waste (MSW) generation in Indian cities has emerged as a serious concern. In order to reduce the negative environmental impacts of MSW accumulation in dumpsites or unsecured landfills across India, various measures have been proposed to facilitate conversion of MSW into a valuable resource. One such measure is the immense potential for utilization of MSW as a source of energy. In this study, a comprehensive estimation of the energy potential of freshly dumped MSW has been conducted at a large unsecured landfill site in Okhla, Delhi, which is the capital city of India. Multiple regression models were developed to predict gross calorific value (GCV) and net calorific value (NCV) of MSW in terms of physical composition, proximate analysis and ultimate analysis of the waste. The developed models were found to give a reasonably good prediction of energy content of freshly dumped MSW in the landfill. Food waste, inerts, textile and paper were found to be the prime constituents of fresh MSW arriving at the landfill site. Based on the statistical analysis, volatile matter content and oxygen content of MSW were found to be non-significant terms in the energy content models derived using proximate analysis and ultimate analysis, respectively. The models developed in this study can be used to predict energy content of MSW at other landfill sites in India under similar climatic conditions and disposal practices.


2021 ◽  
Vol 20 (1) ◽  
pp. 139-146
Author(s):  
Anindi Cita Fiki ◽  
Mochtar Hadiwododo ◽  
Badrus Zaman ◽  
Badrus Zaman

Timbulan municipal solid waste (MSW) akibat industrialisasi, urbanisasi dan pertumbuhan penduduk telah menimbulkan masalah tentang kerusakan lingkungan dan bahaya kesehatan manusia, terutama di negara-negara berkembang. MSW yang mudah terbakar memiliki kandungan proksimat yang dapat dimanfaatkan sebagai energi alternatif melalui recovery energi dengan metode bio-drying. Penelitian ini bertujuan untuk mengolah MSW menggunakan biodrying dan menghitung potensi MSW sebagai bahan bakar alternative. MSW dari Jatibarang landfill diolah dalam reaktor bio-drying dengan debit aerasi sebesar 6 L/m selama 21 hari. Hasil penelitian menunjukkan suhu puncak mencapai 58⁰C pada hari pertama. Kadar air mengalami penurunan hingga 44,65% pada hari ke-21. Nilai kalor mengalami kenaikan 28% dengan nilai tertinggi sebesar 6.049 kal/gr. Produk biodrying dari MSW Jatibarang landfill memiliki potensi 138% sebagai bahan bakar industry.  Potensi penggunaan produk biodrying 100% tercapai pada tahun 2030 bulan ke-6 sebesar 638.367 ton.ABSTRACTMunicipal solid waste (MSW) generated as a result of industrialization, urbanization, and population growth has created problems of environmental damage and human health hazards, especially in developing countries. Combustible MSW contains proximate which can be utilized as alternative energy through energy recovery by bio-drying method. This study aims to process MSW using biodrying and calculate the potential of MSW as an alternative fuel. MSW from TPA Jatibarang is processed in a bio-drying reactor with an aeration flowrate of 6 L/m for 21 days. The results showed that the peak temperature reached 58⁰C on the first day. The water content decreased to 44.65% on the 21st day. The calorific value increased by 28% with the highest value of 6,049 cal/gr. Biodrying products from MSW Jatibarang landfill have 138% potential as industrial fuel. The potential use of 100% biodrying products is achieved in 2030 in the 6th month of 638,367 tons. 


2020 ◽  
Vol 4 (1) ◽  
pp. 1-7
Author(s):  
Made Dirgantara ◽  
Karelius Karelius ◽  
Marselin Devi Ariyanti, Sry Ayu K. Tamba

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 


2016 ◽  
Vol 99 ◽  
pp. 1253-1261 ◽  
Author(s):  
V.S. Yaliwal ◽  
N.R. Banapurmath ◽  
R.S. Hosmath ◽  
S.V. Khandal ◽  
Wojciech M. Budzianowski

Sign in / Sign up

Export Citation Format

Share Document