Performance Analysis on Briquetting Bio Mass with Different Size in 10kW Down Draft Gasifier

Sivakumar, K.; Mohan, N.; Sivaraman, B.

doi:10.1016/j.proeng.2012.06.438

Cited by 9 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Sivakumar et al [33] showed that briquetting sawdust with a cow dung binder could be optimized to increase the thermal efficiency and methane content of the product gas in a downdraft gasifier. Table 2 compares the energy, ash, moisture and volatile matter contents, bulk density, and composition of starch, biosolids and microalgae binders as gathered from literature sources [34,55,56,59,[62][63][64][65][66][67][68][69][70][71]76,77].…”

Section: Binders For Fuel Briquette Productionmentioning

confidence: 99%

Biosolids and microalgae as alternative binders for biomass fuel briquetting

Muazu

Stegemann

2017

Fuel

View full text Add to dashboard Cite

Binders can be employed to improve the particle adhesion, compressive strength, abrasion resistance and energy content of densified biomass, such as briquettes. They may also reduce the energy cost of producing such briquettes, by reducing the compaction pressure, conditioning temperature and the wear on production equipment.This study explored and compared the effects of three different binders, including starch, enhanced treated biosolids and microalgae, on density, durability, energy content and combustion characteristics of fuel briquettes produced from blends of rice husks, corn cobs and bagasse, in a multilevel factorial design experiment.Briquettes had relaxed unit densities of 1.9 to 3.3 times the loose biomass bulk density, and were stronger than briquettes from the individual materials, with an average unconfined compressive strength of 125 kPa. An unconfined compressive strength of 175 kPa was achieved for a 2:4:1 blend of rice husks, corn cobs and bagasse with the microalgae binder at a compaction pressure of 31 MPa. Statistical analysis of the results showed that the addition of biosolids and microalgae binders significantly improved briquette density, while the addition of starch reduced briquette density, and biosolids reduced briquette strength.Of all the briquettes produced with the three binders, those containing the microalgae binder were found to be most durable, with a higher energy value, slower mass loss during briquette combustion, and a higher afterglow time. Since microalgae may be grown using CO2 from biomass combustion, discovery of their advantages as a binder in briquetting is particularly welcome.

show abstract

Section: Binders For Fuel Briquette Productionmentioning

confidence: 99%

Biosolids and microalgae as alternative binders for biomass fuel briquetting

Muazu

Stegemann

2017

Fuel

View full text Add to dashboard Cite

show abstract

“…A utilização de alternativas para a produção de energia também auxilia a economia e o reaproveitamento de resíduos de produção agrícola e/ou agroindustriais, como palha de milho, sabugo de milho, casca de arroz, casca de café, bagaço de cana-de-açúcar, casca de soja entre outros resíduos ou subprodutos que possam vir a ser utilizados como matéria-prima para biocombustíveis ou bioenergia [3,4,5,6].…”

Section: Introductionunclassified

Utilização de Resíduos de Borra de Café e Serragem na Moldagem de Briquetes e Avaliação de Propriedades

et al. 2015

View full text Add to dashboard Cite

RESUMOEste trabalho envolveu a moldagem de briquetes com utilização de resíduos de pó borra de café e serragem de madeira de eucalipto. Os briquetes produzidos a partir de biomassa vegetal podem ser aplicados como substituintes de outros combustíveis utilizados em caldeiras de processos industriais ou até mesmo para aquecimento de residências, em regiões frias, com utilização de equipamentos mais simples. No Brasil e em muitos países uma grande quantidade de resíduos de borra de café é produzida e desperdiçada no cotidiano e em indústrias de café solúvel. A serragem de madeira também é um resíduo bastante comum no Brasil, principalmente, em algumas cidades que concentram grande número de empresas que processam madeira. Assim, a moldagem de briquetes com estes resíduos sólidos é uma oportunidade de reaproveitar os resíduos para produzir um tipo de combustível proveniente de fonte renovável, contemplando também aspectos relacionados à bioenergia e Produção Mais Limpa (P+L). Desta forma, no presente trabalho foram realizadas moldagens de briquetes utilizando o pó da borra de café e serragem de madeira em diferentes proporções destes materiais para avaliar propriedades mecânicas de compressão diametral. Também foram realizadas análises para determinar os teores de umidade, voláteis e cinzas, além da determinação do poder calorífico superior (PCS). Todas as composições de briquetes contendo serragem ocasionaram acréscimos nos valores das mé-dias das propriedades de resistência máxima à compressão diametral e módulo de elasticidade, quando comparados aos valores destas propriedades dos briquetes moldados apenas com a borra de café. As diferentes composições de briquetes contendo serragem apresentaram valores próximos de resistência à compressão diametral. Considerando os valores do poder calorífico (PCS), todas as amostras apresentaram resultados semelhantes em comparação com a literatura. Os briquetes contendo somente borra de café na composição apresentaram resultados de teores de cinzas, voláteis e PCS similares aos das amostras contendo serragem. Porém, os briquetes contendo somente borra de café apresentaram valores inferiores de resistência máxima à compressão quando comparados a todos os outros briquetes moldados também com serragem. Palavras-chave: resíduo, café, serragem de madeira, briquete. ABSTRACTThis work involved the molding briquettes with use of powder of coffee and eucalyptus wood sawdust residues. The briquettes produced from biomass can be applied as replacements for other fuels used in boilers for industrial processes or even for heating home in cold regions, using simple equipment. In Brazil and in many countries a large amount of waste coffee grounds is produced and wasted in daily life and in soluble coffee industry. The wood sawdust is also a fairly common residue in Brazil, especially in some cities that concentrate large number of companies that process wood. Then the molding of briquettes with these solid wastes is

show abstract

“…The more complex the order of the activated complex becomes entangled in the rate-determining step of the corrosion reaction, the higher the inhibitor concentration. As a result, as reactants are transformed into activated complexes, orderliness increases [25].…”

Section: Enthalpy and Entropy Change Investigation Of Mild Steel In P...mentioning

confidence: 99%

Thermodynamic and Adsorption Analysis of Corrosion Inhibition of Mild Steel in 0.5M HCl Medium <i>via</i> Ethanol Extracts of <i>Phyllanthus mellerianus</i>

Nsude¹,

Orie²

2022

AJAC

View full text Add to dashboard Cite

The corrosion of mild steel is a problem in industrial processes based on its deterioration on exposure to acids, alkalis, and salt solutions. This issue has prompted an increase in research interest in order to mitigate the harmful effects of corrosion on metals and their alloys. The thermodynamic and adsorption analysis of mild steel in 0.5M hydrochloric acid solutions via ethanol leaf extract of Phyllanthus mellerianus was investigated using weight loss and hydrogen evolution techniques. The powdered sample was extracted with ethanol and concentrated with a rotary evaporator. The phytochemical analysis reveals the presence of tannins, flavonoids, phenols, and terpenoids at reasonable percentages. The inhibition efficiency, enthalpy, enthropy, activation energy, Gibbs free energy, and adsorption isotherms were extrapolated with some models. The inhibition efficiency increased with an increase in the concentration of the extract. The values of change in Gibbs free energy obtained at 303K, 313K, and 323K were negative, indicating that the leaf extract of Phyllanthus mellerianus was strongly adsorbed on mild steel surfaces and stable at high temperatures. The enthalpy of activation ranges from 43.08kJ/mol to 80.64kJ/mol. An increase in activation energy with inhibitor concentration confirmed the physical (physisorption) adsorption mechanism for the corrosion of mild steel surfaces. The R 2 values obtained from the linear regression are strongly fitted to the Langmuir and freundlich isotherms. The inhibitory effectiveness of extracts has been attributed to the presence of the hetero atoms N, O, and S present in their phytochemical composition.

show abstract

Performance Analysis on Briquetting Bio Mass with Different Size in 10kW Down Draft Gasifier

Cited by 9 publications

References 9 publications

Biosolids and microalgae as alternative binders for biomass fuel briquetting

Biosolids and microalgae as alternative binders for biomass fuel briquetting

Utilização de Resíduos de Borra de Café e Serragem na Moldagem de Briquetes e Avaliação de Propriedades

Thermodynamic and Adsorption Analysis of Corrosion Inhibition of Mild Steel in 0.5M HCl Medium <i>via</i> Ethanol Extracts of <i>Phyllanthus mellerianus</i>

Contact Info

Product

Resources

About

Performance Analysis on Briquetting Bio Mass with Different Size in 10kW Down Draft Gasifier

Cited by 9 publications

References 9 publications

Biosolids and microalgae as alternative binders for biomass fuel briquetting

Biosolids and microalgae as alternative binders for biomass fuel briquetting

Utilização de Resíduos de Borra de Café e Serragem na Moldagem de Briquetes e Avaliação de Propriedades

Thermodynamic and Adsorption Analysis of Corrosion Inhibition of Mild Steel in 0.5M HCl Medium &lt;i&gt;via&lt;/i&gt; Ethanol Extracts of &lt;i&gt;Phyllanthus mellerianus&lt;/i&gt;

Contact Info

Product

Resources

About

Thermodynamic and Adsorption Analysis of Corrosion Inhibition of Mild Steel in 0.5M HCl Medium <i>via</i> Ethanol Extracts of <i>Phyllanthus mellerianus</i>