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Yuli Ristianingsih
27 Desember 2011
Master Student, Chemical Engineering Department, UGM
Title of Research
Mass Transfer Kinetic of Degumming Process Crude Palm Oil with Phosphoric Acid for Improve Quality of Palm Oil Such As Biodiesel Raw Material
Outline:
Crude palm oil contains various minor substance impurities such as free fatty acids (FFA), non fatty materials generally classified as “gums” or phospholipids, color pigments, sterol, tocoferol, waxes, hydrocarbon and etc. Phospholipids are a major class of impurities removed in conventional processes by oil degumming, at significant cost to oil yield. Phospholipids must be removed because they cause oil darkening (or browning) during the subsequent bleaching, hydrogenating, and deodorizing steps of refining.
In addition, phospholipids reduce oxidative stability of the refined oil and biodiesel production. The phospholipids are removed during processing by a variety of treatments collectively referred to as degumming. The treatment usually involves hydration with water (water degumming), phosphoric acid (acid degumming) or in combination, followed by centrifuging the precipitated material or by its adsorption on bleaching earth or filter.
The research studied the effect of temperature, phosphoric acid concentration and agitation on the degumming process for crude palm oil (CPO). The result obtained was also compared with compentional processing based on physicochemical analysis of oil such as acid number, saphonification number, peroxide number, phosphor concentration, Free Fatty Acid (%FFA), cooper and iron contaminant.
Publication:
Ristianingsih, Y. and Harsasi,T., 2007, “Sintesa Biodiesel Sawit Melalui Proses Alkoholisis Minyak Sawit dengan Metanol Sebagai Alternatif Pengganti Petrleum Disel”, Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri (RAPI) V Universitas Muhammadiyah Surakarta
Other Information:
Year 2006 : One of the Winner Student Research Grand III Technological And Professional Skills Development Sector Project (TPSDP)