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New Data from Sharif University of Technology Illuminate Findings in Chemical Engineering (Transesterification of Waste Cooking Oil to Biodiesel...

September 10, 2014



New Data from Sharif University of Technology Illuminate Findings in Chemical Engineering (Transesterification of Waste Cooking Oil to Biodiesel Using KOH/gamma-Al2O3 Catalyst in a New Two-Impinging-Jets Reactor)

By a News Reporter-Staff News Editor at Biotech Week -- Current study results on Chemical Engineering have been published. According to news reporting from Tehran, Iran, by NewsRx journalists, research stated, "In this article, the transesterification of waste cooking oil (WCO) to biodiesel fuel (BDF) has been studied using KOH loaded on millimetric gamma-Al2O3 particles in a novel type of two-impinging-jets reactor (TIJR). The effects of various parameters such as KOH loading (wt %), catalyst loading, and methanol-to-oil molar ratio on the BDF yield were studied."

The news correspondents obtained a quote from the research from the Sharif University of Technology, "The catalyst particles with a KOH loading of 25 wt % at appropriate reaction conditions (i.e., catalyst loading = 4 wt % and methanol-to-oil molar ratio = 15:1) and at 65 degrees C were used in the TIJR. The influences of various operating and design parameters such as jet Reynolds number value, feed flow rate, jet diameter, and the internozzle distance on the performance capability of the TIJR were carefully investigated. As a result of the impinging process, turbulence, and complex trajectory of catalyst particles within the reaction chamber, the BDF yield obtained in the TIJR increased significantly compared to a packed-bed reactor (e.g., 76.35% for TIJR in comparison with 58.01% for the packed-bed reactor after 3 h). This can be attributed to the elimination of external mass-transfer resistance around catalyst particles and remarkably high micromixing of methanol and oil at the impingement zone of the TIJR. Moreover, the mixing that arose from the impinging jets, in TIJR, did not damage the catalyst particles compared to conventional stirrers. Furthermore, the stability of prepared catalyst particles was studied in the TIJR."

According to the news reporters, the research concluded: "The results clearly indicate that the characteristics of this novel reactor are favorable for heterogeneous catalysts in transesterification reactions."

For more information on this research see: Transesterification of Waste Cooking Oil to Biodiesel Using KOH/gamma-Al2O3 Catalyst in a New Two-Impinging-Jets Reactor. Industrial & Engineering Chemistry Research, 2014;53(31):12238-12248. Industrial & Engineering Chemistry Research can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Industrial & Engineering Chemistry Research - www.pubs.acs.org/journal/iecred)

Our news journalists report that additional information may be obtained by contacting M. Ghasemi, Sharif Univ Technol, Dept. of Chem & Petr Engn, Tehran, Iran (see also Chemical Engineering).

Keywords for this news article include: Tehran, Iran, Asia, Biodiesel, Bioengineering, Biotechnology, Chemical Engineering, Energy, Oil and Gas

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Biotech Week


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