Experimental analysis of flyash based, ion exchanged zeolite as catalyst for SI engine exhaust emission control

• Autorzy: Karthikeya D. , Saravanan C. G.
• Języki publikacji: EN

Abstrakty

EN

Lean Burn gasoline engines are receiving increasing application because of their potential of improved fuel economy. The conventional three-way converter used in gasoline engines controls effectively the levels of CO and HC, but it displays poor conversion in harmful NOx emission. This study has investigated the use of different materials with metal additives as support for effective NOx control in gasoline engines. In this work, flyash, which is relatively abundant and inexpensive, has been used as a replacement for expensive materials. Development of Catalysts from waste materials is an effective means to enhance the value of the waste. In the present work, X-Zeolite was synthesized from Coal Fly ash. 13-X zeolite was purchased from market. By the process of exchanging Na+ ions present in these zeolites with copper, Silver and Iron metal ions separately, six catalysts were prepared. Investigations were carried out on the 3 cylinder, 4-stroke, water cooled Maruthi Omni Gasoline Engine with a displacement volume of 796 cc and coupled with eddy current dynamometer. The packed catalyst bed was housed in a 100 mm diameter cylindrical pipe and is connected near to the exhaust manifold. AVL Di-gas analyser is used to measure the NOx, CO, HC, CO2, O2 emissions. Experiments were conducted at various loads from no load to maximum load without catalytic converter and then using the Ag-X, Ag-13X, Fe-X , Fe-13X, Ni -X and Ni -13X zeolite catalytic converters. The result reveals that in house made Ag-X , Fe-X and Ni -X Catalysts reduce emission at all levels of load conditions. Ag-X catalyst gives better conversion than Fe-X catalyst and Ni-X catalyst.

Słowa kluczowe

EN

Synthesis of fly ash; X-Zeolite; catalytic converter; emission control; 13 X Zeolite

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2013
• Tom: Vol. 20, No. 3
• Strony: 229--235
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Karthikeya D.

• Annamalai University Department of Mechanical Engineering Annamalainagar, India 608002

autor

Saravanan C. G.

• Annamalai University Department of Mechanical Engineering Annamalainagar, India 608002

Bibliografia

• [1] Das, R. K., Bhattacharyya, S., DuttaGupta M., Ghosh, B. B., Theoretical and Experimental Analysis of Iron-Exhanged X-Zeolite Catalyst for SI Engine Emission Control, Experimental Thermal and Fluid Science, Vol. 19, pp. 214-222, 1999.
• [2] Bhattacharyya, S., Das, R. K., Catalytic Reduction of NOx in Gasoline Engine Exhaust over Copper- and Nickel-Exchanged X-Zeolite Catalysts, Energy Conversion and Management, Vol. 42, pp. 2019-2027, 2001.
• [3] Traa, Y., Burger, B., Weitkamp, J., Zeolite-Based Materials for the Selective Catalytic Reduction of NOx with Hydrocarbons, Microporous and Mesoporous Materials, Vol. 30, pp. 3-41, 1999.
• [4] Held, W., Konig, A., Richtel, T., Puppe, L., Catalytic NOx Reduction in net Oxidizing Exhaust Gas, SAE Trans., 900496 99 Sec. 4, pp. 209-216, 1990.
• [5] Liu, Z., Hao, J., Fu, L., Li, J., Cui, X., Advances in Catalytic Removal of NOx Under Lean-Burn Conditions, Chinese Science Bulletin, Vol. 49, No. 21, pp. 2231-2241, 2004.
• [6] Metkar, P. S., Salazar, N., Muncrief, R., Balakotaiah, V., Harold, M. P., Selective Catalytic Reduction of NO with NH3 on Iron Zeolite Monolithic Catalysts: Steady-State and Transient Kinetics, Applied Catalysis B, Environmental, doi:10.1016 / j.apcatb. 2011. 02.022, 2010.
• [7] Kaspar, J., Fornasiero, P., Hickey, N., Automotive Catalytic Convertors; Current status and Some Perspectives, Catalysis Today, Vol. 77, pp. 419-449, 2003.
• [8] Barth-Wirsching, U., Hoeller, H., Experimental Studies of Zeolite Formation Conditions, Eur. J. Mineral., Vol. 1, p. 489, 1989.
• [9] Mondragon, F., Rincon, F., Sierra, L., Escobar, J., Ramirez, J., Fernandez, J., New Perspectives for Coal Ash Utilization, Synthesis of Zeolitic Materials. Fuel, Vol. 69, pp. 263-266, 1990.
• [10] Lin, C. F., His, H.-C., Resource Recovery of Waste Fly Ash synthesis of Zeolite-Like Materials, Environ. Sci. Technol. Vol. 29, pp. 1109-1117, 1995.
• [11] Querol, X., Moerno, N., Umana, J. C., Alastuery, A., Hernandez, E., Lopez-Solera, A., Plana, F., Synthesis of zeoliTes from Coal Fly Ash: An Overview, 1. J. Coal Geol., Vol. 50, p. 413, 2002.
• [12] Shih, W.-H., Chang, H.-L., Shen, Z., Conversion of Class-F. Fly Ash into Zeolites. Mater. Res. Soc. Symp. Proc., Vol. 371, pp. 39-44, 1995.
• [13] Ojha, K., Pradhan, N. C., Samanta, A. N., Zeolite from Fly Ash: Synthesis and Characterization, Bull. Mater. Sci., Vol. 27, No. 6, pp. 555-564, 2004.
• [14] Wang, S., Application of Solid Ash Based Catalysts in Heterogeneous Catalysis, Environ. Sci. Technol., Vol. 42, pp. 7055-7063, 2008.