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Fixed bed pyrolysis of date seed waste for liquid oil production

Islam, M. Nurul, Houque, S.M.Nazmul , & Joardder, Mohammad Uzzal Hossain (2009) Fixed bed pyrolysis of date seed waste for liquid oil production. In Proceedings of the 8th International Conference on Mechanical Engineering 2009, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh, pp. 1-4.

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Abstract

The conversion of biomass waste in the form of date seed into pyrolysis oil by fixed bed pyrolysis reactor has been taken into consideration in this study. A fixed bed pyrolysis has been designed and fabricated for obtaining liquid fuel from these date seeds. The major component of the system are fixed bed pyrolysis reactor, liquid condenser and liquid collector. The date seed in particle form is pyrolysed in an externally heated 7.6 cm diameter and 46 cm high fixed bed reactor with nitrogen as the carrier gas. The reactor is heated by means of a biomass source cylindrical heater from 4000C to 6000C. The products are oil, char and gas. The reactor bed temperature, running time and feed particle size are considered as process parameters.

The parameters are found to influence the product yield significantly. A maximum liquid yield of 50 wt.% is obtained at a reactor bed temperature of 5000 C for a feed size volume of 0.11- 0.20 cm3 with a running time of 120 minutes. The pyrolysis oil obtained at this optimum process conditions are analyzed for some fuel properties and compared with some other biomass derived pyrolysis oils and also with conventional fuels. The oil is found to possess favorable flash point and reasonable density and viscosity. The higher calorific value is found to be 28.636 MJ/kg which is significantly higher than other biomass derived pyrolysis oils.

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ID Code: 53273
Item Type: Conference Paper
Keywords: Renewable Energy, Pyrolysis Oil, Fixed Bed, Date Seeds
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Energy Generation Conversion and Storage Engineering (091305)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2009 [please consult the author]
Deposited On: 23 Aug 2012 21:47
Last Modified: 16 Oct 2012 05:49

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