02654ntm a2200349 i 4500 MY-KuUP 20260427122356.0 t||||fr|||| 000 0 ta 260427t20252025my a|||fr|||| 000 0 eng d THE0010505 (Local) Hardback UMPSA eng UMPSA rda FIST .M35 2025 r Bc. Maisarah Binti Said, author. Preparation and chracterisation calcium oxide impregnate silica (cao.Sio2) from natural waste (seashells and rice husk) for sterol glucoside removal in biodiesel / Maisarah Binti Said Kuantan, Pahang : UMPSA, 2025 © 2025 xi, 108 pages : illustrations ; rdacontent text rdamedia unmediated rdacarrier volume rda text file PDF Faculty of Industrial Sciences and Technology Final Year Report (Bachelor of Applied Science of Industrial Chemistry) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025 Include bibliographical reference The increasing global demand for sustainable energy has spurred innovation in biodiesel production, particularly in tackling significant challenges like the precipitation of sterol glucoside (SGs), which can hinder the fuel performance in colder climates. This study explores the preparation and characterization of a hybrid calcium oxide impregnate silica (CaO.SiO2) adsorbent made from natural waste materials, including seashells and rice husk. Advanced characterization methods such as FESEM, BET, FTIR and TGA confirmed the adsorbent’s mesoporous structure, thermal stability, and chemical composition, making it effective for SGs adsorption. Batch adsorption experiments revealed an optimal SGs removal efficiency of 83.42% under specific conditions (4.5% loading, 60℃, 60 minutes). The adsorption treatment significantly enhanced the quality of biodiesel, lowering the acid value from 0.937 mg KOH/g to 0.561 mg KOH/g and improving the oxidative stability by reducing the iodine value to 41.80 g/100g. These results highlight the potential of eco-friendly, waste-derived adsorbents to effectively tackle the biodiesel purification challenges, contributing to greener and more efficient energy solutions while supporting waste reduction and sustainability initiatives. Faculty of Industrial Sciences and Technology Dissertations Universities and colleges Dissertations Theses Dissertations https://umpir.ump.edu.my/id/eprint/46179 lcc PSM 0 0 lcc 0 0 10000 10000 2026-04-27 0 FIST .M35 2025 r Bc. T000003778 2026-04-27 12:24:12 2026-04-27 PSM 104783 104789