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http://dx.doi.org/10.12925/jkocs.2008.25.1.8

A Study of the Influence of Pretreatment of Animal Fat Recovered from Fleshing Scrap on the Eliminating FFA and Fatty Acid Composition  

Shin, Soo-Beom (Korea institute of Footwear & Leather Technology)
Min, Byung-Wook (Korea institute of Footwear & Leather Technology)
Yang, Seung-Hun (Korea institute of Footwear & Leather Technology)
Park, Min-Seok (Korea institute of Footwear & Leather Technology)
Kim, Hae-Sung (Department of Chemical Engineering, Myongji University)
Baik, Doo-Hyun (Department of Textile Engineering, Chungnam National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.25, no.1, 2008 , pp. 58-64 More about this Journal
Abstract
Pretreatment of eliminating FFA is needed to make biodiesel from animal fat recovered from leather wastes because its acid value is high. This study was carried out to investigate the influence of 4 different pretreatment methods, which are heterogeneous catalyst method, ion exchange resin method, low pressure.high temperature method, and alkali method on the eliminating FFA and fatty acid composition. The results showed that the rate of eliminating FFA increased in the order of alkali method > catalyst method > low pressure high temperature method > ion exchange method. In the case of pretreatment of alkali method using NaOH, the rate of eliminating FFA appeared more than 86% regardless of acid value. Therefore, it was considered that alkali method using NaOH was the most effective in the view of economical and productive aspects, taking it into account that the acid value of animal fat recovered from fleshing scrap generated during leather making processes was 7 to 8.
Keywords
flesh Scrap; pretreatment; FFA; biodiesel;
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