caa a22 4500 606169032 CHVBK 20210128100710.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10098-014-0878-5 doi (NATIONALLICENCE)springer-10.1007/s10098-014-0878-5 Catalytic deacidification optimization of Korean crude oil based on response surface methodology [Elektronische Daten] [Norshahidatul Mohd Shohaimi, Jafariah Jaafar, Wan Wan Abu Bakar] The presence of naphthenic acids in petroleum crude oil caused serious corrosion problem to the equipment used in the petroleum refinery industry. The acidity level in the petroleum crude oil is determined from the total acid number (TAN) values. In this study, Korean crude oil sample was obtained from PETRONAS Malacca Refinery with an initial TAN of 8.32mg KOH/g. A catalytic deacidification technique using ammonia-ethylene glycol (NH3-EG) and KOH solution was applied on this crude oil sample with the aid of an alkaline earth metal oxide catalyst. Parameters investigated in this study were concentration of NH3-EG, concentration of KOH, catalyst calcination temperature, type of metal oxide catalysts, and percentage of NH3 in EG. Response surface methodology (RSM) with the central composite design (CCD) was employed to study the optimum condition capable of lowering the TAN in the Korean crude to less than one. The parameters used in the RSM were NH3-EG concentration, KOH concentration, and percentage of NH3 in EG. The results showed an 89.9% reduction of TAN in the Korean crude using 1,000mg/L of 1% of 10M KOH+4% NH3 in EG solution with the aid of Cu/Ca (10:90)/Al2O3 catalyst calcined at 1,000°C. The application of a designed experiment using RSM with CCD confirmed the results obtained experimentally were in good agreement with each other for limited experimental runs. Springer-Verlag Berlin Heidelberg, 2014 Catalytic deacidification nationallicence Naphthenic acids nationallicence Crude oil nationallicence Response surface methodology nationallicence Mohd Shohaimi Norshahidatul Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Jaafar Jafariah Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Wan Abu Bakar Wan Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/6(2015-08-01), 1513-1522 1618-954X 17:6<1513 2015 17 10098 https://doi.org/10.1007/s10098-014-0878-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10098-014-0878-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohd Shohaimi Norshahidatul Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 700 1- Jaafar Jafariah Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 700 1- Wan Abu Bakar Wan Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 773 0- Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/6(2015-08-01), 1513-1522 1618-954X 17:6<1513 2015 17 10098