Extraction of Spent Bleaching Earth in the Production of Renewable Diesel
Vilppu Kuuluvainen, Päivi Mäki-Arvela, Kari Eränen, Anton Holappa, Jarl Hemming, Heidi Österholm, Blanka Toukoniitty and Dmitry Yu. Murzin
Article first published online: 14 APR 2015 | DOI: 10.1002/ceat.201500052
In the production of renewable diesel the feedstock is subjected to bleaching to remove undesired or harmful by-products. Oil extraction from acidic and nonacidic spent bleaching earths was investigated. The quality of the extracted oil was found to be similar to that of the bleached oil, especially considering the glyceride composition. The yields of oil were independent of the feedstock.