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published an article in April 2016.
Top co-authors See all
Mitsuru Sasaki

128 shared publications

Graduate School of Science and Technology, Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kumamoto University, Kumamoto, Japan

Raymond R. Tan

78 shared publications

Anita Ramli

60 shared publications

Universiti Teknologi PETRONAS

Ahmed Al Shoaibi

42 shared publications

Department of Chemical Engineering, The Petroleum Institute, 2533, Abu Dhabi, United Arab Emirates

Bawadi Abdullah

33 shared publications

Universiti Teknologi PETRONAS

12
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5
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38
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Publication Record
Distribution of Articles published per year 
(2012 - 2016)
Total number of journals
published in
 
8
 
Publications See all
Article 0 Reads 3 Citations Comparative life cycle assessment (LCA) of bio-oil production from fast pyrolysis and hydrothermal liquefaction of oil p... Yi Herng Chan, Raymond R. Tan, Suzana Yusup, Hon Loong Lam, ... Published: 07 April 2016
Clean Technologies and Environmental Policy, doi: 10.1007/s10098-016-1172-5
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Conference 2 Reads 0 Citations Kinetic study of microwave-assisted alkaline hydrolysis of Jatropha curcas oil Nur’aini Raman Yusuf, Ruzaimah Nik Mohamad Kamil, Suzana Yus... Published: 01 January 2016
4TH INTERNATIONAL CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCES (ICFAS2016), doi: 10.1063/1.4968094
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The kinetics of hydrolysis of Jatropha curcas oil under microwave irradation in the presence of alkaline solution was studied. The temperature of 50°C, 65°C and 80°C were studied in the range of optimum condition of 1.75 M catalyst, solvent/oil ratio of (1: 68) and 15 minutes reaction time. The rate constants of oil hydrolysis are corresponding to triglyceride disappearance concentration. The rates of reaction for fatty acids production was determined by pseudo first order. The activation energy (Ea) achieved at 30.61 kJ/mol is lower using conventional method. This conclude that the rate of reaction via microwave heating is less temperature sensitive therefore reaction can be obtained at lower temperature.
Article 0 Reads 4 Citations Optimisation and Kinetic Studies of Acid Esterification of High Free Fatty Acid Rubber Seed Oil Lai Fatt Chuah, Awais Bokhari, Suzana Yusup, Jiří Jaromír Kl... Published: 29 December 2015
Arabian Journal for Science and Engineering, doi: 10.1007/s13369-015-2014-1
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Pretreatment of the high free fatty acid (FFA) rubber seed oil from Malaysia (RSOM) and Vietnam (RSOV) via esterification reaction has been investigated. Response surface methodology analysis using central composite design was used to optimise important parameters, including reaction temperature, catalyst loading, methanol-to-oil molar ratio and reaction time on FFA reduction. Optimal esterification conversion was achieved at 50 \({^{\circ}}\)C, 1.38 wt%, 15.98:1 molar ratio and 2 h for RSOM with 99.3% FFA reduction, whereas 65 \({^{\circ}}\)C, 10.74 wt%, 10:1 molar ratio and 1 h for RSOV with 98.6% FFA reduction. Catalyst loading had been found to have the most effect on the FFA reduction followed by methanol-to-oil molar ratio while increasing temperature and reaction time had nominal effect. The frequency factor and activation energy of RSOV were about 1.8- and 1.2-fold higher than RSOM.
Article 1 Read 10 Citations Influence of fatty acids content in non-edible oil for biodiesel properties Lai Fatt Chuah, Suzana Yusup, Abdul Rashid Abd Aziz, Jiří Ja... Published: 14 August 2015
Clean Technologies and Environmental Policy, doi: 10.1007/s10098-015-1022-x
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Physical and chemical properties of biodiesel are influenced by the structural features of fatty acid, such as with saturated, monounsaturated and polyunsaturated fatty acids. In this study, seven non-edible oils have been selected, which include waste cooking oil derived palm olein, Calophyllum inophyllum, jatropha oil, castor oil, rubber seed oil, kapok seed oil and karanja oil. The critical parameters, e.g. cetane number (CN), iodine value (IV) and oxidation stability (OS) of biodiesel were correlated with the degree of unsaturated (DU) fatty acid, whereas the cold filter plugging point (CFPP) was correlated with the long chain saturated factor (LCSF). To meet the minimum EU requirement of EN 14214 of the critical parameter, the DU value of the CN was ≤133.5, IV ≤123.2 and OS ≤98.9. The LCSF values satisfied the Spanish regional standard—RD 61/2006 in summer (0 °C) at ≤8.4 and winter (−10 °C) at ≤0.1 of the CFPP. Based on the composition of the saturated, monounsaturated and polyunsaturated fatty acids, a triangular chart for the biodiesel property prediction was developed. This can then be used as a reference for non-edible oils.
Article 0 Reads 11 Citations Performance and emission of diesel engine fuelled by waste cooking oil methyl ester derived from palm olein using hydrod... Lai Fatt Chuah, Abdul Rashid Abd Aziz, Suzana Yusup, Awais B... Published: 09 April 2015
Clean Technologies and Environmental Policy, doi: 10.1007/s10098-015-0957-2
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The depleting of fossil fuel reserves and increasing environmental concerns have continued to stimulate research into biodiesel as a greener fuel alternative produced from renewable resources. In this study, the performance and emission characteristics of biodiesel blends of 10, 30 and 50 % from waste cooking oil based on hydrodynamic cavitation were compared to diesel fuel, and found to be acceptable according to the EN 14214 and ASTM D 6751 standards. The tests have been performed using an in-line vertical six-cylinder diesel engine at different engine speeds, ranging from 1000 to 2000 rpm under full throttle load. During engine performance tests, biodiesel blends showed higher brake specific fuel consumption (2.1–9.0 %) and exhaust gas temperature (1.0–6.8 %), while lower brake power (1.6–6.7 %), torque (0.6–5.2 %) and brake thermal efficiency (1.9–8.4 %) than diesel fuel. Engine emissions showed higher carbon dioxide (8.7–38.5 %) and nitrogen oxide (4.7–19.0 %) releases, but surprisingly decreased amount of carbon monoxide (3.3–26.3 %) for biodiesel blends compared to diesel fuel. Although higher carbon dioxide amounts were emitted, the use of biodiesel greatly reduced the life cycle circulation of carbon dioxide. Waste cooking methyl ester produced by using hydrodynamic cavitation seems to be relatively easy to scale up to higher production values, is energy efficient, time saving and eco-friendly, which results in biodiesel being a viable fuel for industrial production. The waste cooking oil-based biodiesel can also be used without any engine modifications.
BOOK-CHAPTER 0 Reads 0 Citations Studies on Effect of Process Parameters Variation on Bio-oil Yield in Subcritical and Supercritical Hydrothermal Liquefa... Yi Herng Chan, Suzana Yusup, Armando T. Quitain, Raymond R. ... Published: 01 January 2015
Advances in Bioprocess Technology, doi: 10.1007/978-3-319-17915-5_12
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