Nowadays, the substitute for biofuel diesel fuel is biodiesel. Waste cooking oil has the potential as a biodiesel feedstock due to its environmentally friendly, inexpensive, reduces household waste and does not compete with food needs. Generally, the catalyst used in biodiesel is a homogeneous catalyst but has disadvantages. One effort that can be done is to use CaO catalyst from eggshell waste. Eggshells contain 95,28% CaCO3 which can be calcined to produce CaO. In this research, production of biodiesel is done by using waste cooking oil and CaO catalyst from eggshells with various variables to determine the best calcination conditions in the preparation of the catalyst. The eggshells were calcined at variable temperatures (600,700,800 and 900°C) during the time variables (2,3,4 and 5 hours). The operating conditions in the transesterification reaction were at 60°C for 2hours with a stirring speed of 700rpm and a mole ratio of oil and methanol of 1:12. The results obtained, the best calcination conditions in producing CaO catalysts were at a temperature of 900°C for 2 hours with 75.90% mass recovery. In addition, the transesterification reaction using the best catalyst achieved yield of FAME 64,56% with a density of 0.8573 gr/mL and a viscosity of 7.18 cSt.
Perkembangan biodiesel di Indonesia mengakibatkan kenaikan kebutuhan triasetin sebagai aditif bahan bakar. Manfaat triasetin selain untuk manaikkan nilai oktan juga dapat digunakan sebagai anti-knocking. Kemurnian produk triasetin sebagai bahan aditif minimal sebesar 99,8% ditetapkan dalam perancangan ini. Maka dari itu pemurnian triasetin menjadi salah satu proses penting dalam produksi. Proses distilasi dipilih dalam pemurnian triasetin dari sisa reaktan maupun produk samping karena terdapat perbedaan volatilitas setiap komponennya. Maka dari itu untuk mengoptimumkan pemurnian triasetin melalui proses distilasi untuk mendapatkan kemurnian tinggi dengan mempertimbangkan jumlah produk dilakukan simulasi proses produksi triasetin menggunakan CHEMCAD 7.1.5. Simulasi difokuskan pada penentuan suhu optimum pada bottom product kolom distilasi dengan melakukan trial mulai dari suhu 258°C. Hasil yang didapatkan semakin tinggi suhu bottom product maka semakin tinggi kemurnian triasetin namun produk yang dihasilkan semakin sedikit. Sehingga dari simulasi yang talah dilakukan suhu optimum bottom product dalam proses pemurnian triasetin sebesar 273°C dengan kemurnian 99,84% dan jumlah produk sebanyak 2402,65 kg/jam.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.