Pengaruh Ukuran Serbuk Pada Aktivasi Tanah Liat Dari Tanak Awu Terhadap Daya Adsorpsinya Pada Pemurnian Minyak Goreng Bekas

Abstract

This research was aimed to get the effect of particel size of activated natural clay from Tanak Awu to their adsorption capacity for increase reused cooking oil quality. At previous research we done the activation of natural clay using acid (HCl) and got an optimal concentration of acid at 1 molar. Natural clay was grinding until particel size at 50 mesh, 60 mesh and 100 mesh then it was characterized in specific surface area by methylen blue methods and also acidity surface by acid base titration. Then activated natural clay was applied for purifying reused cooking oil by analyzing water content, acid number and peroxide number. The result showed that there are the effect of particel size of natural clay to acidity surface and specific surface area. While the adsorption capacity of natural clay on purifying reused cooking oil got that optimal particel size of activated natural clay at 60 mesh which getting the decrease of water content, acid number and peroxide number by following reach was 89,13%, 58,61% and 60,52%.

Karakteristik Minyak Jelantah Hasil Proses Pemurnian Dengan Arang Sekam Padi Pada Berbagai Ukuran Partikel

“…Penurunan bilang peroksida disebabkan oleh semakin kecilnya ukuran partikel mengakibatkan semakin besar luas permukaan dari arang aktif, sehingga ukuran partikel yang lebih kecil akan semakin banyak dan cepat dalam menyerap senyawa peroksida pada minyak jelantah. Hal ini juga diperkuat oleh (Nufida et al, 2014) yang menyatakan bahwa semakin kecil ukuran adsorben pada hasil olahan minyak jelantah maka semakin rendah pula bilangan peroksida yang diperoleh dari minyak jelantah tersebut, hal ini karena ukuran partikel yang lebih kecil meningkatkan kapasitas penyerapan.…”

Separation of Kaolinite from Clay Minerals and Its Catalytic Activity in Transesterification Reactions

“…This is also supported by the characteristics of the K-clay catalyst which has the smallest crystal size, average particle size and Si/Al mole ratio among the two other catalysts which will play a role in the catalytic activity of the catalyst. Smaller particle size will correlate relatively with a larger surface area to facilitate the adsorption reaction of reactants on the catalyst surface (Nufida et al, 2014).…”