Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11889/2707
Title: Phase behavior of bicontinuous and water/diesel fuel microemulsions using nonionic surfactants combined with hydrophilic alcohol ethoxylates
Authors: Karaeen, Mohammad
Kyali, Ibrahim
Qamhieh, Khawla
Wadaah, Salam
Ahmad, Wisam
Olsson, Ulf
Issue Date: 2015
Publisher: Taylor & Francis Group
Abstract: Bicontinuous and water-in-diesel microemulsions were formulated using single nonionic alkyl poly glycol ethers combined with hydrophilic alcohol ethoxylates. The phase behavior at temperatures ranging from 0 C to 50 C was investigated. Visual inspection as well as cross-polarizers were used to detect anisotropy. The fish phase diagrams were determined. The presence of the hydrophilic alcohol ethoxylates was necessary to initiate both types of microemulsions. Increasing the hydrophobic chain length of the surfactant led to a wider range of temperature stability at lower surfactant concentration. Meanwhile, increasing the ethylene oxide units in the headgroup by two units led to a phase diagram that is dominated by lyotropic liquid crystal. The formulated water in diesel microemulsions were tested experimentally in a 4-cylinder diesel engine. From this it is observed that the emissions of NOx, soot, and CO2 were reduced substantially compared to neat diesel, while for the CO the reduction occurs just at low load
Description: Ibrahim Kayali , Mohammad Karaein , Khawla Qamhieh , Salam Wadaah , Wisam Ahmad & Ulf Olsson
URI: http://hdl.handle.net/20.500.11889/2707
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