Transesterification of Waste Cooking Oil Using NH2/MCM-41 Base Catalyst: Effect of Methanol/Oil Mole Ratio and Catalyst/Oil Weight Ratio towards Conversion of Ester

Abstract

Transesterification of waste cooking oil (WCO) using NH2/MCM-41 base catalyst has been carried out. The MCM-41 was synthesized by hydrothermal method using the silica from Sidoarjo mud and cetyltrimethylammonium bromide (CTAB) as a template and calcined at 540 °C for 5 h. The MCM-41 was modified by adding (3-aminopropyl) trimethoxysilane using 5 mol percent of N/Si to produce NH2/MCM-41 base catalyst. Transesterification of waste cooking oil was carried out under variation of methanol/WCO mole ratio of 6, 9, 12, 15 and 18 using 10 wt. % of catalyst towards oil and weight ratio of catalyst/WCO of 2, 4, 6, 8, 10 wt. % using methanol/waste cooking oil mole ratio of 15. The result showed that the purity of silica from Sidoarjo mud was 93.40 wt. %. The highest product of methyl ester was 49.98 wt. % obtained using 4 wt. % of catalyst/WCO weight ratio in methanol/oil mole ratio of 15.

SYNTHESIS OF Co-NH2/MESOPOROUS SILICA BIFUNCTIONAL CATALYST USING SIDOARJO MUD AND BOVINE BONE GELATIN TEMPLATE FOR CONVERSION OF USED COOKING OIL INTO BIOFUEL

“…The metal content of the samples was analyzed by X-ray Fluorescence (XRF, PANalytical MiPal 4). In general, the absorption band (Si-OH) and siloxane groups (Si it can be repeated the application of silica extraction methods according to what has been previous researchers 17,18 . The interpretation of the FTIR result shows silica successfully extracted from the mud as it had a functional group typical of silica.…”

“…The extraction of silica was accomplished according to Triyono et al research 17 . The Sidoarjo mud was cleaned and washed with aquadest and dried.…”

Organic dyes supported on silicon-based materials: synthesis and applications as photocatalysts

“…111 In the same study, SBA-15COOH and SBA-15NH 2 were tested for the removal of dyes, an application that had already been well documented. [112][113][114][115] The functionalization of silanol groups of OMS with NH 2 , COOH and SH [116][117][118][119][120][121] has allowed for the coupling of organic dyes to obtain a photocatalytic material able to catalyze different reactions 73,[122][123][124][125] (Fig. 3).…”

Functionalized Ordered Mesoporous Silicas (MCM-41): Synthesis and Applications in Catalysis

“…Aminated MCM-41 are interesting catalysts from an industrial perspective given the stability and intrinsic reusability of these particles. Recently, Trisunaryanti et al [13] reported the use of NH 2 -MCM-41 in the transesterification of vegetable oils to prepare biodiesel fuel from waste cooking oil. In the same work, the reaction conditions were optimized.…”