Predicting the physical properties of three-component lignocellulose derived advanced biofuel blends using a design of experiments approach

Wiseman, Scott; Michelbach, Christian A.; Li, Hu; Tomlin, Alison S.

doi:10.1039/d3se00822c

Cited by 3 publications

(1 citation statement)

References 55 publications

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“…Few studies shed light on the kinematic viscosity of opaque liquids determined using ASTM D445 [6][7][8]. Recently and in a still timid manner, some studies using the design of experiments have been applied to fuel and biofuels, such as the prediction of the physical properties of biofuels [9], the evaluation of the correlation between the ratio of light biofuel and refined palm oil blends on their density and kinematic viscosity properties [10], and the minimisation of the kinematic viscosity and maximisation of the biodiesel yield during a transesterification reaction [11]. Furthermore, kinematic viscosity has been used in several studies regarding the quality of biodiesel [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Design of Experiments for Evaluating the Relevance of Change in Test Method for Kinematic Viscosity of Opaque Oils

de Camargo,

Manea,

de Oliveira

2024

Metrology

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Viscosity is a physicochemical property that evaluates the resistance that fuel offers to flow, influencing the engine’s operation and combustion process. Its control is aimed at good fuel atomization and the preservation of lubricating characteristics. Changes in viscosity can lead to wear on various parts of the engine. Viscometers typically measure the viscosity of fuels in the oil and gas industry. These instruments can measure the time it takes for a fluid to move a given distance through a pipe or the time it takes for an object of a given size and density to pass through the liquid. The traditional test method, ASTM D445, differentiates the procedure for opaque liquids from transparent ones; that is, it requires a warm-up of the sample between 60 °C and 65 °C for 1 h. This additional step can overload laboratory routines, although it is not guaranteed to have a metrologically significant effect on the final result. Thus, this study evaluated the relevance of complying with this step in the test method for the kinematic viscosity of opaque liquids using a 32 factorial experimental design. Based on the F test, p-value, confidence intervals, and percentage contribution of the sum of squares approaches concerning the regression analysis, one concluded that the warm-up time was not a relevant factor in the kinematic viscosity, specifically of very low sulphur fuel oil, Brazilian fuel oil, and atmospheric residue diluted with diesel oil, which are fluids at room temperature.

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Section: Introductionmentioning

confidence: 99%

Design of Experiments for Evaluating the Relevance of Change in Test Method for Kinematic Viscosity of Opaque Oils

de Camargo,

Manea,

de Oliveira

2024

Metrology

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Kinetic modeling of microwave-assisted esterification for biofuel additive production: conversion of levulinic acid with pentanol using Dowex® 50WX8 catalyst

Gallego-Villada,

Alarcón,

Sathicq

et al. 2024

Reac Kinet Mech Cat

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This study explores the esterification of levulinic acid with 1-pentanol, employing Dowex® 50WX8 as a catalyst under microwave irradiation. Key parameters such as the pentanol/acid molar ratio, temperature, and catalyst loading were evaluated and utilized for kinetic modeling. The kinetic behavior of the reaction was investigated using a dual-model approach: a pseudo-homogeneous model to account for the microwave effect and catalytic contributions modeled through LHHW and Eley–Rideal mechanisms. The best model was chosen based on statistical results obtained from Markov Chain Monte Carlo (MCMC) analysis, which involved an LHHW model with the surface reaction as the limiting step, resulting in an activation energy of 50.6 kJ mol−1 for the catalytic synthesis of pentyl levulinate. The role of the alcohol in the esterification route was explained, and catalytic stability was confirmed, with the catalyst maintaining activity over multiple cycles. The absence of mass transfer limitations was proved using the Weisz–Prater criterion. A plausible reaction pathway was proposed for the levulinic acid esterification over the 50WX8 catalyst. Graphical abstract

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Predicting the autoignition behaviour of tailorable advanced biofuel blends using automatically generated mechanisms

Michelbach,

Hakimov,

Farooq

et al. 2024

Proceedings of the Combustion Institute

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Predicting the physical properties of three-component lignocellulose derived advanced biofuel blends using a design of experiments approach

Abstract: Predictive models of selected physical properties of advanced biofuel blends produced using a design of experiments methodology. C4/C5 alcohol-based blends superior to C2 ones as diesel replacements since they better match selected property limits.

Cited by 3 publications

References 55 publications

Design of Experiments for Evaluating the Relevance of Change in Test Method for Kinematic Viscosity of Opaque Oils

Design of Experiments for Evaluating the Relevance of Change in Test Method for Kinematic Viscosity of Opaque Oils

Kinetic modeling of microwave-assisted esterification for biofuel additive production: conversion of levulinic acid with pentanol using Dowex® 50WX8 catalyst

Predicting the autoignition behaviour of tailorable advanced biofuel blends using automatically generated mechanisms

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