Production of Clean Transportation Fuel Dimethylether by Dehydration of Methanol Over Nafion Catalyst

Varışlı, Dilek; Doğu, Timur
April 2008
Gazi University Journal of Science;Apr2008, Vol. 21 Issue 2, p37
Academic Journal
Dimethylether (DME) which is a very attractive synthetic transportation fuel alternate is synthesized by the dehydration reaction of methanol over nafion as the catalyst. The objective is to test the activity of this catalyst in methanol dehydration reaction. Experiments carried out in a vapor phase flow reactor in a temperature range of 120-220°C and with a space time of 1.35 s.g/cm3 showed quite high activity of Nafion to produce DME, giving conversion values of about 0.4 at 220°C. An increase in temperature caused an increase in DME selectivity (reaching to one over 200 °C) and a decrease in formaldehyde selectivity.


Related Articles

  • Thermochemical Module for Hydrogen Production by Steam Reforming of Methanol. Makunin, A. V.; Granovskii, M. S.; Ivanov, E. B.; Fomin, V. M. // Chemical & Petroleum Engineering;Nov/Dec2003, Vol. 39 Issue 11/12, p704 

    The article presents a study which aims to search for a usable raw-material resource for catalytic conversion in a thermochemical module to produce hydrogen. It also explores the feasibility of implementing the process of the steam reforming of the lower alcohols over a copper chromium zinc...

  • Methanol dehydration reaction to produce clean diesel alternative dimethylether over mesoporous aluminosilicate-based catalysts. Varisli, Dilek; Tokay, Kenan Cem; Ciftci, Aysegül; Dogu, Timur; Dogu, Gülsen // Turkish Journal of Chemistry;2009, Vol. 33 Issue 3, p355 

    Due to its good burning characteristics and high cetane number, dimethylether (DME) is considered as a highly attractive and clean alternative to diesel fuel. This ether can be produced by methanol dehydration reaction over solid acid catalysts. In the present study, activities of mesoporous...

  • Zircon Supported Copper Catalysts for the Steam Reforming of Methanol. Widiastri, M.; Fendy; Marsih, I. N. // AIP Conference Proceedings;3/17/2008, Vol. 989 Issue 1, p248 

    Steam reforming of methanol (SRM) is known as one of the most favorable catalytic processes for producing hydrogen. Current research on zirconia, ZrO2 supported copper catalyst revealed that CuO/ZrO2 as an active catalyst for the SRM. Zircon, ZrSiO4 is available from the by-product of tin...

  • Sweet and bendy.  // New Scientist;7/8/2006, Vol. 191 Issue 2559, p25 

    The article reports that a chemical called 5-hydroxymethylfurfural (HMF) in fructose can easily be turned into furandicarboxylic acid, which is similar in structure to the petroleum-based material used for many plastics. HMF normally reacts with unconverted fructose to produce an unusable waste....

  • Effects of morphological characteristics of Pt nanoparticles supported on poly(acrylic acid)-wrapped multiwalled carbon nanotubes on electrochemical performance of direct methanol fuel cells. Oh, Jun Young; Choi, Hong Soo; Kim, Min Seok; Kim, Yern Seung; Park, Chong Rae // Journal of Materials Research;2012, Vol. 27 Issue 15, p2035 

    The catalytic activity of Pt nanoparticles (NPs) significantly influences the electrochemical performance of direct methanol fuel cells. Information about the factors that influence the electrochemical activity of the catalyst themselves is scarce; hence, guidelines for the preparation of Pt NPs...

  • Preparation and characterization of biodiesel produced from fish oil. Fan, Xiaohu; Burton, Rachel; Austic, Greg // Chemistry & Technology of Fuels & Oils;Dec2010, Vol. 46 Issue 5, p287 

    This study evaluated the production of biodiesel using fish oil as raw material. Two-stage alkaline-catalysis transesterification was performed with 6/1 molar ratio of methanol to oil at 55°C in the presence of 1 wt. % base amount of potassium hydroxide (KOH). The fuel properties of the...

  • Acid-Catalyzed Homogeneous Esterification Reaction for Biodiesel Production from Palm Fatty Acids. Aranda, Donato; Santos, Rafael; Tapanes, Neyda; Ramos, André; Antunes, Octavio // Catalysis Letters;May2008, Vol. 122 Issue 1/2, p20 

    This work deals with esterification of palm fatty acids to produce biodiesel in a batch reactor, using homogeneous acid catalysts, evaluating the effect of the alcohol used, presence of water, type and concentration of catalysts. Methanesulfonic and sulfuric acid were the best catalysts....

  • A Modified Solid-State Reduction Method to Prepare Supported Platinum Nanoparticle Catalysts for Low Temperature Fuel Cell Application. Huaping Zhu; Shijun Liao; Liyan Ye; Xinfa Hu; Bamin Khomami; Hu, Michael Z. // Current Nanoscience;May2009, Vol. 5 Issue 2, p252 

    A modified solid state reduction (SSR) method, by which the platinum salt is reduced into platinum nanoparticles by sodium formate in solid state and under low temperature (below 180 °C) conditions, is introduced here. The high performance catalysts based on carbon nanotubes (CNTs) supported...

  • Jatropha poisoning (Bio-diesel Poisoning) - A case report. Kalyanshettar, S. S.; Patil, S. V.; Akki, A. S.; Naren, S. // Indian Journal of Forensic Medicine & Toxicology;Jul-Dec2010, Vol. 4 Issue 2, p72 

    Jatropha curcas commonly known as bio-diesel plant can cause poisoning on ingestion. It mainly leads to gastro enteritis and dehydration. Mortality is rare. In a group of patients we also encountered manifestations like frothing at nostrils and papillary dilatation.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics