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Mohammed M. Farid

Mohammed M. Farid

University of Auckland, New Zealand

Title: Converting Waste Products into Fuel and Useful Chemicals

Biography

Biography: Mohammed M. Farid

Abstract

In this presentation, the possibility of converting low-grade vegetable oil or tallow available widely in New Zealand into biodiesel and energy materials will be discussed in an effort to improve the economy of this process. Currently established processes use alkali catalysts such as sodium hydroxide to trans-esterifies any source of lipid using methanol at low temperatures and pressures. However, the manufacturing cost of biodiesel produced remained high, making biodiesel more expensive that petroleum diesel, especially if high grade feedstock is used. Three possible approaches, which may improve the conversion of low grade lipid into biodiesel or useful chemicals, will be discussed in this presentation: development of gas phase reactor  in which the trans esterification reaction takes place only in few seconds rather than many minutes. This is done by spraying the oil or molten tallow into fine droplet against methanol vapor at elevated temperatures, react glycerol, which is a waste product from the biodiesel manufacturing, with the free fatty acid present in the low grade tallow or oil according the esterification reaction shown. The produced monoglycerides can then be easily trans- esterified. This will prevent the harmful saponification reaction, which could consume the catalyst, and use of higher alcohol having higher solubility of the lipid to ease biodiesel production and also to produce energy materials, known as a phase change materials, that can be used to improve energy managements in buildings. In addition the potential of growing and harvesting algae in wastewater for the production of biodiesel will be also discussed.

Recent Publications:

  1.    Farid, M.M. and Behzadi, s. “Method of Biodiesel Preparation” International Patent WO 2007/049979 A1, 3 May, 2007, US Patent 2009/0038209, Feb., 2009 and PCT/NZ 2006/000277.
  2.     Behzadi, S. and Farid, M. “Title: Production of Biodiesel Using a Continuous Gas-Liquid Reactor,  Bioresource Technology, 100,2, 2059-2062 (2008).
  3.     Barzin R, Chen JJJ, Young BR, Farid MM. Application of PCM energy storage in combination with night ventilation for space cooling Applied Energy 158:412-421 Article number C Nov 2015.
  4. Mehrabadi A, Farid MM, Craggs R. Variation of biomass energy yield in wastewater treatment high rate algal ponds Algal Research 15:143-151 Article number C, 2016.
  5. Mehrabadi A1, Craggs R2, Farid MM3.Wastewater treatment high rate algal ponds (WWT HRAP) for low-cost biofuel production Bioresource Technology, Nov 2014. doi: 10.1016