Alternative solvent design for oil extraction from palm pressed fibre via computer-aided molecular design
College
Gokongwei College of Engineering
Department/Unit
Center for Engineering and Sustainable Development Research
Document Type
Book Chapter
Source Title
Green Technologies for the Oil Palm Industry
First Page
33
Last Page
55
Publication Date
2018
Abstract
Palm pressed fibre (PPF) is a by-product from palm oil milling process. There are approximately 5–7% of residual oils retained in PPF after the oil extraction process. Hexane is commonly used as solvent for extraction of the residual oil due to its low cost and high oil solubility. However, the high boiling point of hexane leads to degradation of carotenes during oil recovery. Besides, hexane is highly flammable and causes air pollution through fugitive emissions. Thus, there is interest in identifying alternative solvents to extract residual oil from PPF . In this chapter, a new approach that combines Computer-Aided Molecular Design (CAMD) and Analytic Hierarchy Process (AHP) is presented. The proposed approach can determine the alternative solvents that exert favourable attributes for oil extraction. Both physical and environmental properties are chosen as design criteria to generate solvents with improved performance and environmental characteristics. Nonetheless, it is difficult to evaluate the relative importance of each property since properties that belong to different categories cannot be compared on a common scale. This issue needs to be addressed seriously as different relative weights will identify different solvents. The main attraction of this AHP –CAMD approach is that the relative importance weight of those identified properties can be systematically defined. AHP structures the CAMD problem in a hierarchical manner that allows physical and environmental properties to be compared under the same analysis. Through this approach, the identified alternative solvents have comparable or better performance as compared to hexane.
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Recommended Citation
Ooi, J., Promentilla, M. B., Tan, R. R., Ng, D. K., & Chemmangattuvalappil, N. G. (2018). Alternative solvent design for oil extraction from palm pressed fibre via computer-aided molecular design. Green Technologies for the Oil Palm Industry, 33-55. Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/15374
Disciplines
Chemical Engineering
Series Title
Green energy and technology
Keywords
Solvents; Palm oil; Extraction (Chemistry)
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