@article{Marín Velásquez_Arriojas Tocuyo_2022, title={Analysis of factors affecting the efficiency of Jatropha curcas oil as an asphaltene stabiliser}, volume={62}, url={https://ojs.cvut.cz/ojs/index.php/ap/article/view/7341}, DOI={10.14311/AP.2022.62.0283}, abstractNote={<p><span dir="ltr" style="left: 205.569px; top: 319.299px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.977382);" role="presentation">The effect of temperature and applied dose on the efficiency of</span> <em><span dir="ltr" style="left: 603.755px; top: 319.299px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.932655);" role="presentation">Jatropha curcas</span></em> <span dir="ltr" style="left: 707.071px; top: 319.299px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.913221);" role="presentation">seed oil as </span><span dir="ltr" style="left: 123.199px; top: 336.833px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.958987);" role="presentation">an asphaltene stabiliser was studied. Two crude oil samples (light and medium) were used.</span> <em><span dir="ltr" style="left: 695.548px; top: 336.833px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.922205);" role="presentation">J. curcas</span></em> <span dir="ltr" style="left: 755.876px; top: 336.833px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.0797);" role="presentation">oil </span><span dir="ltr" style="left: 122.673px; top: 354.367px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.976469);" role="presentation">was subjected to heating at 100, 150 and 170</span> <span dir="ltr" style="left: 411.221px; top: 354.367px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">°</span><span dir="ltr" style="left: 416.701px; top: 354.367px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.986306);" role="presentation">C for 24 h with an unheated sample (25</span> <span dir="ltr" style="left: 670.642px; top: 354.367px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">°</span><span dir="ltr" style="left: 676.122px; top: 354.367px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.0093);" role="presentation">C) and applied</span> <span dir="ltr" style="left: 123.199px; top: 371.901px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.970804);" role="presentation">at doses of 2, 4, 6, and 8</span> <span dir="ltr" style="left: 280.963px; top: 371.901px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">μ</span><span dir="ltr" style="left: 288.951px; top: 371.901px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.01057);" role="presentation">L in 10 ml of sample. The asphaltene instability index (AII) was determined</span> <span dir="ltr" style="left: 123.199px; top: 389.435px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.01694);" role="presentation">as the ratio between the amount in ml of n-heptane to flocculate the asphaltenes and the amount in</span> <span dir="ltr" style="left: 123.199px; top: 406.971px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.03419);" role="presentation">ml of xylene to disperse the flocs. The experimental design was Taguchi factorial with a response</span> <span dir="ltr" style="left: 123.199px; top: 424.505px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.02662);" role="presentation">surface for one response variable (AII) and two experimental factors (the applied dose and heating</span> <span dir="ltr" style="left: 123.199px; top: 442.039px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.02929);" role="presentation">temperature). For light crude oil, the optimum conditions were 8</span> <span dir="ltr" style="left: 547.64px; top: 442.039px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">μ</span><span dir="ltr" style="left: 555.871px; top: 442.039px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.07768);" role="presentation">L and T = 127</span> <span dir="ltr" style="left: 655.296px; top: 442.039px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">°</span><span dir="ltr" style="left: 660.776px; top: 442.039px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.00757);" role="presentation">C with an 85.3 % </span><span dir="ltr" style="left: 123.199px; top: 459.573px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.02927);" role="presentation">efficiency and for medium crude oil, 2</span> <span dir="ltr" style="left: 374.43px; top: 459.573px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">μ</span><span dir="ltr" style="left: 382.711px; top: 459.573px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.12475);" role="presentation">L and T = 25</span> <span dir="ltr" style="left: 477.378px; top: 459.573px; font-size: 14.6118px; font-family: sans-serif;" role="presentation">°</span><span dir="ltr" style="left: 482.857px; top: 459.573px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.03135);" role="presentation">C with a 94.3 % efficiency. The efficiency of </span><em><span dir="ltr" style="left: 122.169px; top: 477.107px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(0.946139);" role="presentation">J. curcas</span></em> <span dir="ltr" style="left: 184.369px; top: 477.107px; font-size: 14.6118px; font-family: sans-serif; transform: scaleX(1.00709);" role="presentation">oil and the influence of the type of crude oil on the results obtained were demonstrated.</span></p>}, number={2}, journal={Acta Polytechnica}, author={Marín Velásquez, Tomás Darío and Arriojas Tocuyo, Dany Day Josefina}, year={2022}, month={Apr.}, pages={283–292} }