Comparing Biofuels Obtained from Pyrolysis, of Soybean Oil or Soapstock, with Traditional Soybean Biodiesel: Density, Kinematic Viscosity, and Surface Tensions†

2008 ◽  
Vol 22 (3) ◽  
pp. 2061-2066 ◽  
Author(s):  
Kenneth M. Doll ◽  
Brajendra K. Sharma ◽  
Paulo A. Z. Suarez ◽  
Sevim Z. Erhan
Keyword(s):  
Soybean Oil ◽  
Kinematic Viscosity ◽  
Surface Tensions ◽  
Soybean Biodiesel

Enhancement on CO2 Bubble Absorption in MDEA Solution by TiO2 Nanoparticles

2013 ◽  
Vol 631-632 ◽  
pp. 127-134 ◽  
Author(s):  
Shu Hong Li ◽  
Yi Ding ◽  
Xiao Song Zhang
Keyword(s):  
Thermal Conductivity ◽  
Surface Tension ◽  
Mass Fraction ◽  
Kinematic Viscosity ◽  
Absorption Rate ◽  
Surface Tensions ◽  
Mechanical Agitation ◽  
Maximum Enhancement ◽  
Nanoparticles Concentration ◽  
The Stability

TiO2-N-methyldiethanolamine(MDEA)-H2O nanofluids were prepared by dispersing TiO2 nanoparticles in the 50wt% (mass fraction) MDEA solution. The stability of nanofluids was studied by the method of absorbance. Only with mechanical agitation, the nanofluids can keep stable at least 48 h without any dispersant. The surface tensions; kinematic viscosities and thermal conductivities of the MDEA solution were measured at the temperature of 20 °C when the TiO2 na-noparticles concentration was 0.05wt%, 0.2wt%, 0.4wt% and 0.8wt%. The results show that they all increase with increasing concentration of the nanoparticles. The maximum enhancement of the surface tension, kinematic viscosity and thermal conductivity is 0.6 %, 4.6 % and 5.9 % respectively at the concentration of 0.8 wt%. The influence of nanoparticles on CO2 bubble absorption in the MDEA solution was studied. It can be found that the CO2 absorption rate can be enhanced by 1.95%, 6.53%, 7.79%, 11.54% when the TiO2 nanoparticles concentration is 0.05wt%, 0.2wt%, 0.4wt% and 0.8wt% respectively. The possible mechanisms for the phenomena in experiments and related results are also explained.

Kinematic viscosity of soybean biodiesel and diesel fossil fuel blends: Estimation from permittivity and temperature

Fuel ◽  
2017 ◽  
Vol 207 ◽  
pp. 488-492 ◽  
Author(s):  
J. Corach ◽  
M. Colman ◽  
P.A. Sorichetti ◽  
S.D. Romano
Keyword(s):  
Kinematic Viscosity ◽  
Fossil Fuel ◽  
Fuel Blends ◽  
Soybean Biodiesel

Estimation of the composition of soybean biodiesel/soybean oil blends from permittivity measurements

Fuel ◽  
2019 ◽  
Vol 235 ◽  
pp. 1309-1315 ◽  
Author(s):  
Julián Corach ◽  
Eriel Fernández Galván ◽  
Patricio Aníbal Sorichetti ◽  
Silvia Daniela Romano
Keyword(s):  
Soybean Oil ◽  
Oil Blends ◽  
Soybean Biodiesel ◽  
Permittivity Measurements

An Experimental Study on Performance and Emissions of a CI Engine Fueled with Soybean Biodiesel with Antioxidant

2015 ◽  
Vol 813-814 ◽  
pp. 799-804
Author(s):  
P. Chenga Reddy ◽  
S. Arumugam ◽  
P. Ramakrishna
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Soybean Oil ◽  
Thermal Efficiency ◽  
Mechanical Efficiency ◽  
Alternative Fuel ◽  
Brake Thermal Efficiency ◽  
Soybean Biodiesel ◽  
Performance And Emissions ◽  
Ci Engine

In the present investigation, a biodiesel derived from soybean oil with 1, 4-Dioxan was tested as an alternative fuel for agricultural diesel Engine. The performance and emissions studies were conducted for both neat and blended biodiesel (B25, B50, B75 and B100) with and without antioxidant and the comparison is also made with petroleum diesel. On using biodiesel, the emissions of HC and NOx were less compared to diesel. The brake thermal efficiency of B25+1, 4-Dioxan and mechanical efficiency of B50+1, 4-Dioxan is nearly similar to that of diesel.

Viscosities and Densities of Ternary Blends of Diesel + Soybean Biodiesel + Soybean Oil

2012 ◽  
Vol 57 (11) ◽  
pp. 3233-3241 ◽  
Author(s):  
Carlos A. Nogueira ◽  
Frederico R. Carmo ◽  
Diego F. Santiago ◽  
Victor M. Nogueira ◽  
Fabiano A. N. Fernandes ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Ternary Blends ◽  
Soybean Biodiesel

Correction to “Viscosities and Densities of Ternary Blends of Diesel + Soybean Biodiesel + Soybean Oil”

2015 ◽  
Vol 60 (11) ◽  
pp. 3439-3439
Author(s):  
Carlos A. Nogueira ◽  
Frederico R. Carmo ◽  
Diego F. Santiago ◽  
Victor M. Nogueira ◽  
Fabiano A. N. Fernandes ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Ternary Blends ◽  
Soybean Biodiesel

scholarly journals Effect of kinematic viscosity variation with blended-oil biodiesel on engine performance and exhaust emission in a power tiller engine

2019 ◽  
Vol 25 (6) ◽  
pp. 946-959
Author(s):  
Duk Gam Woo ◽  
Tae Han Kim
Keyword(s):  
Fatty Acid ◽  
Soybean Oil ◽  
Ultrasonic Irradiation ◽  
Acid Content ◽  
Kinematic Viscosity ◽  
Fatty Acid Content ◽  
Engine Performance ◽  
Viscosity Reduction ◽  
High Unsaturated Fatty Acid ◽  
Blend Ratio

The optimum conditions for producing biodiesel by combining beef tallow, a waste resource with high saturated fatty acid content, and soybean oil, which has high unsaturated fatty acid content, were investigated. Furthermore, the kinematic viscosity reduction effects of biodiesel by using heating and ultrasonic irradiation were verified, and their impacts on engine performance and exhaust emissions were evaluated. The result shows that the optimum production conditions are a blend ratio of TASO3 (soybean oil to tallow blend ratio of 7:3) and a methanol to oil molar ratio of 12:1. Kinematic viscosity reduction experiment results showed that the kinematic viscosity reduction effects of ultrasonic irradiation and heating were similar, but the heating device is considered more effective because it is simpler and cheaper than the ultrasonic device. Experiment results on output performance and exhaust performance showed that the engine performance and exhaust performance of the fuel with reduced kinematic viscosity were higher than those of the untreated fuel. However, the output of biodiesel was lower than those of conventional diesel (CD) due to the low calorific value of biodiesel; the NOx and CO2 emissions of biodiesel were higher than those of CD, but the CO and HC emissions of biodiesel were lower.

scholarly journals Caracterização de estudos de impacto ambiental relacionados ao cultivo e expansão da cultura da soja no mundo

2021 ◽  
Vol 14 (Supl. 2) ◽  
pp. 1-13
Author(s):  
Najla Kauara Alves do Vale ◽  
Márcia Thaís de Melo Carvalho ◽  
Klaus de Oliveira Abdala
Keyword(s):  
Soybean Oil ◽  
Web Of Science ◽  
Soybean Biodiesel

A sojicultura é caracterizada como a monocultura de maior dimensão econômica mundial. Esse fato tem despertado o desenvolvimento de pesquisas em nível mundial, cuja finalidade é compreender os impactos negativos do processo de expansão de seu cultivo. Este artigo tem por objetivo apresentar o mapeamento da produção científica internacional sobre os impactos negativos decorrentes do cultivo e expansão da cultura da soja. O escopo da pesquisa é composto por 389 artigos, coletados das bases de dados Scielo e Web of Science. Os resultados são apresentados sob as perspectivas de: 1) distribuição anual dos artigos; 2) caracterização dos artigos mais citados; 3) países que mais publicaram; e 4) clusters de palavras-chave. Foi possível perceber uma elevação da concentração de publicações a partir do ano de 2000, principalmente relacionadas ao bioma Amazônia. Os países que mais publicaram no período analisado foram os Estados Unidos, Brasil e China. A co-ocorrência de palavras-chave mais utilizadas foi “deforestation, systems, brazil, assessment, soybean oil, soybean biodiesel”. Dos 389 artigos encontrados, observou-se que a pesquisa está centrada nos estudos relacionados ao desmatamento, aumento da produção de biodiesel, contaminação dos recursos hídricos, mudanças climáticas e o uso dos agrotóxicos, entretanto há estudos crescentes sobre os impactos positivos no ambiente com enfoque em novas tecnologias, como a integração lavoura-pecuária e floresta, nos sistemas de produção para a mitigação de danos ao meio ambiente, sobretudo com o potencial para o sequestro de carbono, além de orientarem para o uso racional dos recursos hídricos.

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