Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 22, Pages 10686-10694Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.08.068
Keywords
Catalytic cracking; Nanocrystalline zeolite; Biofuel; Design of experiments; Waste cooking palm oil
Funding
- Ministry of Science, Technology and Innovation (MOSTI), Malaysia [03-01-05-SF0221]
- Universiti Sains Malaysia, Penang [811043]
- Universiti Sains Malaysia [1001/PJKIMIA/8032011]
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The catalytic cracking of waste cooking palm oil to biofuel was studied over different types of nanocrystalline zeolite catalysts in a fixed bed reactor. The effect of reaction temperature (400-500 degrees C), catalyst-to-oil ratio (6-14) and catalyst pore size of different nanocrystalline zeolites (0.54-0.80 nm) were studied over the conversion of waste cooking palm oil, yields of Organic Liquid Product (OLP) and gasoline fraction in the OLP following central composite design (CCD). The response surface methodology was used to determine the optimum value of the operating variables for maximum conversion as well as maximum yield of OLP and gasoline fraction, respectively. The optimum reaction temperature of 458 degrees C with oil/catalyst ratio = 6 over the nanocrystalline zeolite Y with pore size of 0.67 nm gave 86.4 wt% oil conversion, 46.5 wt% OLP yield and 33.5 wt% gasoline fraction yield, respectively. The experimental results were in agreement with the simulated values within an experimental error of less than 5%. (C) 2011 Elsevier Ltd. All rights reserved.
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