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3,476 results on '"Ong, Hwai Chyuan"'

197. Biodiesel Production through Electrolysis Using an Ionic Liquid, 1-Ethyl-3-Methylimidazolium Chloride as a Supporting Electrolyte.

Author

Aregawi, Beyene Hagos, Nguyen, Hoang Chinh, Fu, Chun-Chong, Ong, Hwai Chyuan, Barrow, Colin J., Su, Chia-Hung, Wu, Shao-Jung, Juan, Horng-Yi, and Wang, Fu-Ming

Subjects
VEGETABLE oils, IONIC liquids, ELECTRIC conductivity, RESPONSE surfaces (Statistics), ELECTROLYTES, ELECTROLYSIS, CHLORIDES
Abstract

Electrolysis is a promising approach for biodiesel production. However, low electrical conductivity of a reaction mixture results in a low reaction rate. Thus, this study developed a novel catalyst-free electrolysis process using an ionic liquid as a supporting electrolyte for biodiesel production. Various ionic liquids were assessed, and 1-ethyl-3-methylimidazolium chloride ([Emim]Cl) exhibited the highest electrical conductivity (4.59 mS/cm) and the best electrolytic performance for transesterification. Electrolysis in the presence of [Emim]Cl was subsequently optimized using response surface methodology to maximize biodiesel yield. A maximum biodiesel yield of 97.76% was obtained under the following optimal reaction conditions: electrolysis voltage, 19.42 V; [Emim]Cl amount, 4.43% (w / w); water content, 1.62% (w / w); methanol to oil molar ratio, 26.38 : 1; and reaction time, 1 h. Notably, [Emim]Cl could be efficiently reused for at least three cycles with a corresponding biodiesel yield of 94.81%. Moreover, the properties of the synthesized biodiesel complied with EN and ASTM standards. The findings of this study indicate that catalyst-free electrolysis using [Emim]Cl as a supporting electrolyte is an eco-friendly and efficient method for biodiesel production. [ABSTRACT FROM AUTHOR]

Published
2023
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200. Sustainability of Palm Biodiesel in Transportation: a Review on Biofuel Standard, Policy and International Collaboration Between Malaysia and Colombia

Author

Nazatul Liana Sukiman, Muhammad Zulfattah Zakaria, M. N. A. M. Yusoff, Nurin Wahidah Mohd Zulkifli, Ong Hwai Chyuan, Muhammad Mujtaba Abbas, Muhammad Syahir Amzar Zulkifli, Masjuki Haji Hassan, and Muhammad Harith Hasnul

Subjects
0106 biological sciences, Sustainable development, Consumption (economics), Biodiesel, Resource (biology), Renewable Energy, Sustainability and the Environment, Natural resource economics, 020209 energy, Technology development, 02 engineering and technology, 01 natural sciences, Alternative fuel, Article, Socio-economy, Blueprint, Biofuel, 010608 biotechnology, Sustainability, 0202 electrical engineering, electronic engineering, information engineering, Business, Energy supply, Deforestation, 1003 Industrial Biotechnology, Agronomy and Crop Science, Energy (miscellaneous)
Abstract

Biodiesel is gaining prominence as a superior alternative source of energy to replace petroleum-based fuel in transportation. As of today, the biodiesel market continuous to rise up as the biofuel has been introduced to more than 60 countries worldwide. The aim of the present review is to highlight on the scenario of the biofuel implementation in transportation sector towards sustainable development in Colombia and Malaysia. Colombia serves as an ideal comparative case for Malaysia in terms of biodiesel development since the country is the main palm oil producer in Latin America region and the pioneer in bioethanol industry. The first section shows an overview on the biodiesel as an alternative fuel in transportation. The next section will focus on a comparative study between Malaysia and Colombia biodiesel sector in terms of energy supply, resource, production and consumption, standards, techno-economic cost and their biodiesel policies. A comprehensive review was studied to discuss on the sustainability of palm cultivation and biodiesel, impact of palm industry and biodiesel policy in transportation sector and potential international collaboration between Malaysia and Colombia to improve their existing policies, strategies and blueprints related to the palm biodiesel industry, thus overcoming the challenges when dealing with global energy issue.

Published
2020

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