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The enhanced oil recovery (EOR) efficiency of a foam injection is largely dependent on the stability of foam film especially when crude oil is present. In this study, a surface-grafted nano-cellulose (sgNC) was used to stabilize the film of a surfactant foam and then employed in foam EOR process. The synergism between sgNC and the surfactant was first investigated in bulk through direct measurements...
In our previous reports, nano-cellulose (NC) has been proposed for enhanced oil recovery (EOR) application as a “green” displacing agent. To further improve its physical properties towards EOR, surface-grafting by AMPS (2-acrylamido-2-methylpropane sulfonic acid) and hydrophobic groups (HG) was conducted on NC, and producing NC-KY and NC-KYSS, respectively. The primary objective of this work was to...
This work studied the physicochemical characteristics of exhaust particles from a 1.48LSIDI engine operating at different air–fuel ratios (AFRs). The morphology, fractal dimension, size and nanostructure were characterized using high-resolution transmission electron microscopy (HRTEM) in conjunction with electron energy-loss spectroscopy. The results indicate that SIDI aggregate particles produced...
In order to obtain the solubility values for the diesel/biodiesel/methanol blends and prepare the homogeneous single blended fuels, biodiesel or diesel was composed approximately of a series of model compounds and the liquid–liquid equilibrium (LLE) data for the seven ternary and one quaternary systems involving in n-alkane, fatty acid methyl ester and methanol have been measured and performed thermodynamic...
This work studied the evolution of in-cylinder polycyclic aromatic hydrocarbons (PAHs) in a diesel engine fueled with n-heptane, and explored the effects of adding toluene to n-heptane on in-cylinder PAHs. In-cylinder PAHs were sampled in a direct injection diesel engine using a total cylinder sampling system. PAHs were analyzed by gas chromatography–mass spectrometry with programmed temperature vaporization...
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