relation: https://repository.unp.ac.id/id/eprint/38609/ title: Reusability Test of Silica-Titania Catalyst on Biodiesel Production from Waste Cooking Oil in Various Temperatures creator: Annisa, Fiona Rachma creator: Dewata, Indang creator: Sanjaya, Hary creator: Latisma Dj, Latisma Dj creator: Putra, Ananda creator: Sundari, Rita creator: Nizar, Umar Kalmar subject: Q Science (General) subject: QD Chemistry subject: S Agriculture (General) subject: SB Plant culture subject: SH Aquaculture. Fisheries. Angling subject: T Technology (General) subject: TP Chemical technology description: This work has investigated the reusability of silica-titania in various temperatures (50 – 70°C) of biodiesel production from waste cooking oil. The reused silica-titania catalyst collected from silica-titania catalyst waste produced from the process of separating the catalyst from biodiesel products from palm oil and used cooking oil at various temperatures. The 1st and 2nd reused SiO2-TiO2 were characterized by DR UV-Vis and the spectra were deconvoluted for calculate the fraction of titanium in tetrahedral coordination. In addition the biodiesel products were characterized using FTIR, and several properties of biodiesel such as density, flow rate and acid value were analyzed in order to get the information about catalytic activity reused SiO2-TiO2. The results show the titanium tetrahedral fraction in reused catalyst (1st) and (2nd) are found to be 24,98% and 24.65%, respectively. The FTIR characterization of biodiesel products and waste cooking oil are almost similar. The analysis of waste cooking oil converted to biodiesel shows an optimum temperature of 50oC that at this temperature the lowest density or highest flow rate gave highest conversion of 47.82% using BCR1 and 39.13% using BCR2. publisher: IJSRST date: 2019-07-10 type: Article type: PeerReviewed format: text language: en identifier: https://repository.unp.ac.id/id/eprint/38609/1/10_turnitinT_ANANDA_PUTRA_Reusability%20test%20of%20Silica%20Titania%20Catalyst%20on%20Biodiesel%20Production%20from%20Waste%20Cooking%20Oil%20in%20Various%20Temperatures.pdf identifier: Annisa, Fiona Rachma and Dewata, Indang and Sanjaya, Hary and Latisma Dj, Latisma Dj and Putra, Ananda and Sundari, Rita and Nizar, Umar Kalmar (2019) Reusability Test of Silica-Titania Catalyst on Biodiesel Production from Waste Cooking Oil in Various Temperatures. International Journal of Scientific Research and Technology (IJSRST), 6 (4). pp. 116-123. ISSN Print: 2395-6011 dan Online: 2395-602X relation: https://ijsrst.com/paper/5977.pdf