Biomass Briquette Characterization for Downdraft Gasification

2014 ◽  
Vol 592-594 ◽  
pp. 2442-2446
Author(s):  
Gajanan Namdeorao Shelke ◽  
P. Mahanta
Keyword(s):  
Rice Husk ◽  
Proximate Analysis ◽  
Heating Value ◽  
Downdraft Gasifier ◽  
Ultimate Analysis ◽  
Saw Dust

The present study involves the preparation and characterization of the biomass briquettes made from saw dust and rice husk. Five samples with different compositions were prepared using the old news papers as the binder for both the biomass. Ultimate analysis, proximate analysis, heating value and handling characteristic of all the samples were determined. It was observed that the compositions of the biomass sawdust (BMS)-15 and biomass rice husk (BMR)-15 are suitable for the downdraft gasifier.

scholarly journals Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Janduir Egito da Silva ◽  
Guilherme Quintela Calixto ◽  
Rodolfo Luiz Bezerra de Araújo Medeiros ◽  
Marcus Antônio de Freitas Melo ◽  
Dulce Maria de Araújo Melo ◽  
...  
Keyword(s):  
Lignin Content ◽  
Proximate Analysis ◽  
Catalytic Reforming ◽  
Pyrolysis Products ◽  
Heating Value ◽  
Colored Cotton ◽  
Benzene Toluene ◽  
Naturally Colored Cotton ◽  
Main Influence

AbstractThis study aims to analyze the products of the catalytic pyrolysis of naturally colored cotton residues, type BRS (seeds from Brazil), called BRS-Verde, BRS-Rubi, BRS-Topázio and BRS-Jade. The energy characterization of biomass was evaluated through ultimate and proximate analysis, higher heating value, cellulose, hemicellulose and lignin content, thermogravimetric analysis and apparent density. Analytical pyrolysis was performed at 500 °C in an analytical pyrolyzer from CDS Analytical connected to a gas chromatograph coupled to the mass spectrometer (GC/MS). The pyrolysis vapors were reformed at 300 and 500 °C through thermal and catalytic cracking with zeolites (ZSM-5 and HZSM-5). It has been noticed that pyrolysis vapor reforming at 500 °C promoted partial deoxygenation and cracking reactions, while the catalytic reforming showed better results for the product deoxygenation. The catalyst reforming of pyrolysis products, especially using HZSM-5 at 500 °C, promoted the formation of monoaromatics such as benzene, toluene, xylene and styrene, which are important precursors of polymers, solvents and biofuels. The main influence on the yields of these aromatic products is due to the catalytic activity of ZSM-5 favored by increased temperature that promotes cracking reactions due expanded zeolites channels.

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 Thermochemical Characterization of Oil Palm Fronds, Coconut Shells, and Wood as A Fuel For Heat and Power Generation

2018 ◽  
Vol 225 ◽  
pp. 01008 ◽  
Author(s):  
Muddasser Inayat ◽  
Shaharin A. Sulaiman ◽  
Muhammad Yasin Naz
Keyword(s):  
Solid Fuel ◽  
Oil Palm ◽  
Proximate Analysis ◽  
Energy Dispersive ◽  
X Ray ◽  
Ultimate Analysis ◽  
Oil Palm Fronds ◽  
Coconut Shells ◽  
Palm Fronds

This study investigated the thermochemical characterization of oil palm fronds (OPF), coconut shells (CS) and wood for their use as a solid fuel for thermal conversion processes. The ultimate analysis, proximate analysis, calorific values, and elemental contents through energy dispersive X-ray spectroscopy of OPF, CS, and wood samples were measured. The results of OPF and CS were compared with wood considered as benchmark solid fuel. Proximate analysis was performed as per ASTM standard procedure in a muffle furnace and used thermos-gravimetric analysis technique. The ultimate analysis was used to determine the weight percentage of carbon, hydrogen, and nitrogen in CHNS analyzer. Elements analysis was done using energy dispersive X-ray spectroscopy. The ultimate analysis results show carbon content was higher in CS as compared to OPF and wood. The hydrogen content was higher in OPF. Proximate analysis results revealed that volatile matter was higher in wood, whereas fixed carbon and higher heating value were found higher in CS while ash content was lower in CS. From EDX results found that the OPF has Al, Si, Cl, and K, while, in wood and CS these elements are absent. The thermochemical characterization results of OPF and CS were comparable with the wood. Therefore, it concluded that OPF and CS have the potential to be used as renewable energy source by using appropriate energy conversion technologies, such as gasification, pyrolysis, and torrefaction.

scholarly journals Removal of Organic Pollutant from Aqueous Solution by Rice Husk Activated Carbon (RHAC)

2017 ◽  
Vol 29 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Sabrina Khan ◽  
Zannatul Ferdous Raha ◽  
Mahe Jabeen ◽  
Mahe Rukh ◽  
Syeda Tanzila Reza ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Rice Husk ◽  
Chemical Engineering ◽  
Low Cost ◽  
Organic Pollutant ◽  
Freundlich Isotherm ◽  
Proximate Analysis ◽  
Phenol Adsorption ◽  
Activating Agent

In this work, activated carbon was prepared from low cost agricultural by-product rice husk and NaOH was used as chemical activating agent. The characterization of rice husk activated carbon (RHAC) was performed by Scanning Electron Microscope (SEM) and BET surface analyzer. In addition, the proximate analysis and Boehm titration was conducted to investigate RHAC properties and surface function groups. The adsorption of an organic pollutant (phenol) using RHAC was studied by the batch method. It was established that phenol adsorption by RHAC reached equilibrium at about 2640 min and is more compatible with Langmuir adsorption isotherm with respect to Freundlich isotherm. Phenol adsorption capacity of RHAC was found to be 17.123 mg g?1.The phenol adsorption kinetics corresponds well with pseudo first order model.Journal of Chemical Engineering, Vol. 29, No. 1, 2017: 29-33

scholarly journals Characterization of carbonized waste materials: Rice husk and saw dust

2019 ◽  
Vol 606 ◽  
pp. 012002 ◽  
Author(s):  
G J H Melvin ◽  
Kah Fei Chai ◽  
Fadzlita Mohd Tamiri
Keyword(s):  
Rice Husk ◽  
Waste Materials ◽  
Saw Dust

Fabrication and mechanical characterization of bagasse, rice husk, saw dust reinforced epoxy composites

2019 ◽  
Author(s):  
Md. Wahedul Islam ◽  
Md. Tahsim Rahman ◽  
Shaikh Mainul Islam ◽  
Md. Bakhtierkhalzi ◽  
Md. Suzauddin
Keyword(s):  
Rice Husk ◽  
Mechanical Characterization ◽  
Epoxy Composites ◽  
Saw Dust

scholarly journals CARACTERIZAÇÃO DO RESÍDUO DE MDF E SEU APROVEITAMENTO NA PRODUÇÃO DE PELLETS

Nativa ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 300
Author(s):  
Thammi Queuri Gomes Da Cunha ◽  
Pedro Vilela Gondim Barbosa ◽  
Pedro Augusto Fonseca Lima ◽  
Thalles Santiago Pimentel ◽  
Lucas Lemes de Souza Peixoto ◽  
...  
Keyword(s):  
Mechanical Characteristics ◽  
Calorific Value ◽  
Proximate Analysis ◽  
Fixed Carbon ◽  
Heating Value ◽  
High Heating Value ◽  
Energetic Characterization ◽  
Quality Specifications ◽  
Volatile Materials

O processamento dos painéis de MDF, para a fabricação de móveis, gera uma grande quantidade de resíduos que constituem passivo ambiental, podendo ser utilizados para geração de energia. O objetivo deste trabalho foi avaliar as características do resíduo de MDF e seu aproveitamento na produção de pellets, visando a aplicação energética. A caracterização energética do resíduo foi realizada por meio da química imediata (teores de cinzas, voláteis e carbono fixo) e do poder calorífico superior. Além disso, foram produzidos e avaliados pellets (características energéticas e físico-mecânicas). A avaliação das características do resíduo: poder calorífico superior (4427,8 kcal.kg-1) e química imediata (carbono fixo, materiais voláteis e cinzas foram 16,3; 82,3 e 1,4%, respectivamente) e dos pellets de MDF: densidade aparente (1,15 g.cm-3), a granel (0,61 g.cm-3), energética (2,6 a 5,5 Gcal.m-3) e durabilidade (99,87%) indicaram a viabilidade técnica do aproveitamento do material como fonte energética. As características energéticas e físico-mecânicas dos pellets de MDF atenderam as especificações de qualidade exigidas nas normas internacionais de comercialização, exceto para o diâmetro médio.Palavras-chave: materiais densificados, potencial energético, painéis. CHARACTERIZATION OF MDF RESIDUE AND ITS USE IN PELLET PRODUCTION ABSTRACT:The processing of MDF panels, for the manufacture of furniture, generates a large amount of residues that constitutes an environmental liability, and can be used for power generation. The objective of this work was to evaluate the characteristics of the MDF residue and its use in the production of pellets, aiming at the energetic application. The energetic characterization of the residue was carried out by means of the proximate analysis (ash, volatile and fixed carbon contents), calorific value. In addition, pellets were produced and evaluated (energy and physico-mechanical characteristics). The evaluation of the characteristics of the residue: high heating value  (4427.8 kcal kg-1) and proximate analysis (fixed carbon, volatile materials and ash were 16.3, 82.3 and 1.4%, respectively) and pellets: density (1.15 g cm -3), bulk density (0.61 g cm -3), energy density (2.6-5.5 Gcal m-3) and durability (99.87 %) indicated the technical feasibility of using the material as an energy source. The energy and physical-mechanical characteristics of MDF pellets met the quality specifications required by international marketing standards, except for the average diameter.Keywords: densified materials, energetic potential, panels. DOI:

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 

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