The Effect of Temperature and Ethanol Concentration on Diethyl Ether Production by Using Adsorption–Dehydration Process


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Abstract


The objective of this research is to produce DiEthyl Ether from ethanol broth fermentation by using adsorption - dehydration process with H-zeolite as catalyst. H-zeolite catalyst was synthesized from natural zeolite obtained from District Gunung Kidul, Indonesia. The H-zeolite catalyst was produced with chemical treatment, washing, drying and calcinations processes and then impregnation by using Al /aluminum. The zeolite catalyst was analyzed for its X-ray Diffraction and specific surface area. DiEthyl Ether was produced by adsorption with molecular sieve and then continued by dehydration process. DiEthyl Ether production used a fixed bed reactor with 1/2 in diameter, and ethanol fermentation broth as feed. The operation condition was 140-240oC and atmospheric pressure. The main compounds in the liquid phase of products are diethyl ether, methanol, ethanol and water. The result also showed that the adsorption process can increase purity of ethanol and therefore increase the ethanol conversion. Moreover, increasing operation temperature and ethanol concentration were able to increase the ethanol conversion, while H-zeolite and Alumina catalyst had the same affects in the ethanol conversion
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Keywords


H-Zeolite; Adsorption; Conversion of Ethanol; Temperature; Ethanol Concentration

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References


Karas, L and W.J., Piel, Kik-Othmer Encyclopedia of Chemical Technology edited by Watcher (John Wiley and Sons Inc, 1998).

Golay S, L Kiwi-Minsker, R Doepper,dan A Renken, Influence of the catalyst acid/base properties on the catalytic etanol dehydration under steady state and dynamic conditions. In situ surface and gas-phase analysis, Chem. Eng.Sci. 54 (1999) 3593-3598.

Haber J., K. Pamin, L. Matachowski, B. Napruszewska, and J. Pol_towicz, Potassium and Silver Salts of Tungstophosphoric Acid as Catalysts in Dehydration of Etanol and Hydration of Ethylene, Journal of Catalysis 207(2002) 296–306 .

Takahara I, M Saito, M Inaba, and K Murata, Dehydration of ethanol into ethylene over solid acid catalysts Catalysis Letters, Vol 105 (2005) 249-252.

Zaki, T., Catalytic dehydration of ethanol using transition metal oxide catalysts Journal of Colloid and Interface Science 284 (2005) 606–613.

Varisli, D, T Dogu, and G Dogu, Ethylene and diethyl-ether production by dehydration reaction of ethanol over different heteropolyacid catalysts, Chem Eng Sci 62 (2007) 5349 – 5352.

Chen, G, Shulian Li, Fengjun Jiao, Quan Yuan, Catalytic dehydration of bioethanol to ethylene over TiO2/γ-Al2O3 catalysts in microchannel reactors, Catalysis Today 125 (2007) 111-119.

Bi. J, Xinwen Guo, Min Liu, Xiangsheng Wang, High effective dehydration of bio-ethanol into ethylene over nanoscale HZSM-5 zeolite catalysts, Catalysis Today 149 (2010)143-147.

Ladisch, M.R., M., Voloch, J., Hong, P., Blenkowski dan T., Tsao, Cormeal Adsorber for Dehydrating Etanol Vapors Ind. Eng. Chem. Process Dev 23 (1984)437-443.

Widayat, Mustafa, A Roesyadi and M Rachimoellah, H-Zeolit Catalyst Production From Natural Zeolit For Ethanol Dehydration Process: The Effect Of Solvent Type And Temperature, International Symposium On Sustainable Energy And Environmental Protection (ISSEEP). Yogyakarta, Indonesia, November 23-26 (2009).

Boveri M, C Ma´rquez-A´ lvarez, M.A Laborde, dan E Sastre, Steam and Acid Dealumination Of Mordenite Characterization And Influence On The Catalytic Performance In Linear Alkylbenzene Synthesis, Catalysis Today (2006) 217- 255.

Xia, J, D. Mao, W. Tao, Q Chen, Y. Zhang and Y Tang, Dealumination of HMCM-22 by various methods and its application in one-step synthesis of dimethyl ether from syngas, Microporous and Mesoporous Materials 99 (2006) 33-39.

Lu, Linghong, Shao, Qing, and Huang, Liangliang, Simulation of Adsorption and Separation of Ethanol-Water Mixture With Zeolite and Carbon Nanotube Fluid Phase Equilibria 261 (2007) 191-198.

Widayat, A. Roesyadi and M Rachimoellah, Pengaruh Waktu Dealuminasi dan Jenis Sumber Zeolit Alam Terhadap Kinerja H-Zeolit untuk Proses Dehidrasi Etanol, Jurnal Reaktor 13 (2010) 51-57.

Wu, Liang-Peng Xin-Jun Li, Zhen-Hong Yuan, Yong Chen, The fabrication of TiO2-supported zeolite with core/shell heterostructure for ethanol dehydration to ethylene, Catalysis Communications 11 (2009) 67–70.

Makarfi, Yusuf Isa, Marina Sergeevna Yakimov, Anatoly Sergeevich Lermontov, Vladimir Ivanovich Erofeev, Lubov Mikhailovna Koval, Valentin Filipovich Tretiyakov, Conversion of bioethanol over zeolites, Chemical Engineering Journal, 154, (2009), 396-400.


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