Three Way Catalysts (TWC) are extensively used for simultaneous control of three principal automotive pollutants, namely carbon monoxide (CO), Oxides of nitrogen (NOx), and hydrocarbon (HC). Most of works on three way catalytic converter have been carried out with noble metals such as Platinum, Rhodium, and Iridium have been tried individually and in different combinations and proportions. Noble metal catalysts give very good performance of reduction of (NOx), CO and HC in the narrow range of stoichiometric Air Fuel ratio. Noble metals are costly and not abundantly available. These draw backs of the noble metal catalysts have inspired to search for the alternative catalysts, which will perform well over the wide range of A/F ratio and are economical and abundantly available. This paper discusses the processing of ZSM-5 to Cu-Ion- Exchanged ZSM-5, ZSM-5 supported Cu-Pt bimetallic catalyst and Cu-Rh bimetallic catalyst and placing them in a three staged converter to study the reduction efficiencies of exhaust emissions CO, NOx, and HC in a 800 cc Maruti S. I. Engine. The experiments are carried out at 1500 rpm, 17.6 A/F ratio, different catalyst bed temperatures and different engine loads 0%, 17.5%, 35%, 52.5%, and 70% of full load. The results achieved are the maximum reduction of CO 90% at 375 °C NOx 90% at 375 °C and HC 61% at 380 °C. The same engine was also run for Noble metal converter (NMC) (EURO-II) purchased from an authorized Maruti distributor and the maximum reduction achieved were CO 89% at 375° C, NOx 91% at 375° C, and HC 70% at 390° C comparable to Zeolite Catalytic Converter (ZCC).
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ASME 2005 Internal Combustion Engine Division Spring Technical Conference
April 5–7, 2005
Chicago, Illinois, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4184-7
PROCEEDINGS PAPER
Control of S.I. Engine Exhaust Emissions Using Non-Precious Catalyst (ZSM-5) Supported Bimetals and Noble Metals as Catalyst
Bankim B. Ghosh,
Bankim B. Ghosh
Indian Institute of Technology, Kharagpur, India
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Prokash Chandra Roy,
Prokash Chandra Roy
Indian Institute of Technology, Kharagpur, India
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Mita Ghosh,
Mita Ghosh
Indian Institute of Technology, Kharagpur, India
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Paritosh Bhattacharya,
Paritosh Bhattacharya
College of Engineering and Management, Kolaghat, India
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Rajsekhar Panua,
Rajsekhar Panua
College of Engineering and Management, Kolaghat, India
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Prasanta K. Santra
Prasanta K. Santra
Banasthali Bidyapith, Rajasthan, India
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Bankim B. Ghosh
Indian Institute of Technology, Kharagpur, India
Prokash Chandra Roy
Indian Institute of Technology, Kharagpur, India
Mita Ghosh
Indian Institute of Technology, Kharagpur, India
Paritosh Bhattacharya
College of Engineering and Management, Kolaghat, India
Rajsekhar Panua
College of Engineering and Management, Kolaghat, India
Prasanta K. Santra
Banasthali Bidyapith, Rajasthan, India
Paper No:
ICES2005-1025, pp. 9-14; 6 pages
Published Online:
November 11, 2008
Citation
Ghosh, BB, Roy, PC, Ghosh, M, Bhattacharya, P, Panua, R, & Santra, PK. "Control of S.I. Engine Exhaust Emissions Using Non-Precious Catalyst (ZSM-5) Supported Bimetals and Noble Metals as Catalyst." Proceedings of the ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASME 2005 Internal Combustion Engine Division Spring Technical Conference. Chicago, Illinois, USA. April 5–7, 2005. pp. 9-14. ASME. https://doi.org/10.1115/ICES2005-1025
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