Comparative study of physicochemical and rheological property of waste cooking oil, castor oil, rubber seed oil, their methyl esters and blends with mineral diesel fuel

Paul, Atanu Kumar; Borugadda, Venu Babu; Reshad, Ali Shemsedin; Bhalerao, Machhindra S.; Tiwari, Pankaj; Goud, Vaibhav V.

doi:10.1016/j.mset.2021.03.004

Cited by 15 publications

(29 citation statements)

References 39 publications

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“…The result of Newtonian flow behavior index ( n ) indicated as the produced CO FAME was Newtonian fluid in nature within shear rate range from 50 to 300s -l . Similar observation was reported for castor seed oil-based fatty acid methyl ester obtained by homogeneous catalysis [ 62 ].

Where: τ , γ , n and k are shear stress (Pa), shear rate (s −1 ), power-law coefficients and flow consistency index (Pa.s n ), respectively.…”

Section: Resultssupporting

confidence: 88%

“…Additionally, flow behavior of CO FAME were analyzed using power law model to estimate flow consistency ( k ) and non-Newtonian flow behavior indexes ( n ) at 25 °C from the linearization of power law equation ( eq. 6 ) [ 61 , 62 ]. Generally, for shear thinning behavior corresponds to n less than unity (1), shear thickening behavior to n greater than unity (1) and Newtonian behavior to n equal to unity (1) [ 61 , 62 ].…”

Section: Resultsmentioning

confidence: 99%

“…6 ) [ 61 , 62 ]. Generally, for shear thinning behavior corresponds to n less than unity (1), shear thickening behavior to n greater than unity (1) and Newtonian behavior to n equal to unity (1) [ 61 , 62 ]. Non-Newtonian flow behavior index ( n ) and flow consistency index or viscosity ( k ) for CO FAME at 25 °C was found to be 0.997 ± 0.0094 and 24.62 mpa, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and characterization of a heterogeneous catalyst from a mixture of waste animal teeth and bone for castor seed oil biodiesel production

Mengistu

Reshad

2022

Heliyon

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Where: τ , γ , n and k are shear stress (Pa), shear rate (s −1 ), power-law coefficients and flow consistency index (Pa.s n ), respectively.…”

Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of a heterogeneous catalyst from a mixture of waste animal teeth and bone for castor seed oil biodiesel production

Mengistu

Reshad

2022

Heliyon

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“…Viscosity is the most important parameter evaluated by the rheological methods applied for various fluids, to identify their texture [ 82 ]. The rheological characteristics of oil extracts are influenced by many factors, such as temperature, shear rate, time, concentration, pressure, physicochemical properties, and phytoconstituents [ 83 ]; however, this type of flow is determined by temperature variation. Both UBO and CNO showed a proportional increase of shear stress with shear rate, and a decrease in viscosity with share rate increase up to 250 s −1 , it being thought that this behavior could be due to the CNO long-chain molecules [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

Antioxidant, Cytotoxic, and Rheological Properties of Canola Oil Extract of Usnea barbata (L.) Weber ex F.H. Wigg from Călimani Mountains, Romania

Popovici

Bucur

Gîrd

et al. 2022

Plants

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Usnea genus (Parmeliaceae, lichenized Ascomycetes) is a potent phytomedicine, due to phenolic secondary metabolites, with various pharmacological effects. Therefore, our study aimed to explore the antioxidant, cytotoxic, and rheological properties of Usnea barbata (L.) Weber ex F.H. Wigg (U. barbata) extract in canola oil (UBO) compared to cold-pressed canola seed oil (CNO), as a green solvent used for lichen extraction, which has phytoconstituents. The antiradical activity (AA) of UBO and CNO was investigated using UV-Vis spectrophotometry. Their cytotoxicity was examined in vivo through a brine shrimp lethality (BSL) test after Artemia salina (A. salina) larvae exposure for 6 h to previously emulsified UBO and CNO. The rheological properties of both oil samples (flow behavior, thixotropy, and temperature-dependent viscosity variation) were comparatively analyzed. The obtained results showed that UBO (IC50 = 0.942 ± 0.004 mg/mL) had a higher 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity than CNO (IC50 = 1.361 ± 0.008 mg/mL). Both UBO and CNO emulsions induced different and progressive morphological changes to A. salina larvae, incompatible with their survival; UBO cytotoxicity was higher than that of CNO. Finally, in the temperature range of 32–37 °C, the UBO and CNO viscosity and viscoelastic behavior indicated a clear weakening of the intermolecular bond when temperature increases, leading to a more liquid state, appropriate for possible pharmaceutical formulations. All quantified parameters were highly intercorrelated. Moreover, their significant correlation with trace/heavy minerals and phenolic compounds can be observed. All data obtained also suggest a possible synergism between lichen secondary metabolites, minerals, and canola oil phytoconstituents.

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“…Rheological properties have been studied for different biofuels produced from waste cooking oil, castor oil, and rubber seed oil. They have been compared to their raw oils and have also been blended with pure diesel fuel and studied at different temperatures and shear rates [28].…”

Section: Introductionmentioning

confidence: 99%

Rheological Properties of the Jojoba Biofuel

Ghannam

Selim

2021

Sustainability

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Jojoba oil biofuel is a potential alternative to diesel fuel with attractive properties, but its flow behavior under the operating conditions of a diesel engine still needs to be clarified. In this study, the rheological properties of the jojoba biofuel are presented in assessment with diesel fuel to experimentally evaluate both their flow behaviors at different operating temperatures. A Fann-type coaxial cylinder viscometer was employed. The shear stress of the tested biofuel rises considerably with the shear rate in a marginally nonlinear manner on a logarithmic scale. Rheograms indicate that the flow behavior decreases gradually and considerably in the temperature range of 30–90 °C. The viscosity of the jojoba oil biofuel declines considerably with the decreasing applied shear rate and temperature. Based on the experimental results, a suitable model is developed for predicting the viscosity characteristics of the tested biofuel during the heating and cooling cycles of a diesel engine.

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Comparative study of physicochemical and rheological property of waste cooking oil, castor oil, rubber seed oil, their methyl esters and blends with mineral diesel fuel

Cited by 15 publications

References 39 publications

Synthesis and characterization of a heterogeneous catalyst from a mixture of waste animal teeth and bone for castor seed oil biodiesel production

Synthesis and characterization of a heterogeneous catalyst from a mixture of waste animal teeth and bone for castor seed oil biodiesel production

Antioxidant, Cytotoxic, and Rheological Properties of Canola Oil Extract of Usnea barbata (L.) Weber ex F.H. Wigg from Călimani Mountains, Romania

Rheological Properties of the Jojoba Biofuel

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