Exhaust emission control of SI engines using ZSM-5 zeolite supported bimetals as a catalyst synthesized from coal fly ash. (15th May 2023)

• Record Type: Journal Article
• Authors: Rajakrishnamoorthy, P.; Saravanan, C.G.; Natarajan, Ramesh; Karthikeyan, D.; Sasikala, J.; Femilda Josephin, J.S.; Vikneswaran, M.; Sonthalia, Ankit; Varuvel, Edwin Geo
• Is Part Of: Fuel. Volume 340(2023)
• Publication Date: 2023-05-15
• Subjects: SI Engine -- NOx reduction -- Mono and bi-metallic catalyst -- ZSM5 zeolite -- Fly ash; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2022.127380
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: Synthesizes ZSM-5 zeolite from coal fly ash as a catalyst. Use of mono and bimetallic doped zeolite coated in honeycomb structure. Reduction of NOx emissions using bimetallic of Ce.Cu-ZSM5 and Ce.Fe-ZSM5. Abstract: This paper synthesizes ZSM-5 zeolite from coal fly ash and uses it as a catalyst for reduction of NOx emissions in gasoline powered engine. It suggests a mono and bimetallic doped zeolite coated in honeycomb structure cordierite monolith for effectively reducing the NOx emissions. The synthesized ZSM-5 zeolite was subjected to SEM, XRF and XRD analysis and compared with commercial ZSM-5 zeolite. The experimental study of measuring emissions using AVL DI-gas analyzer on a Tata nano twin-cylinder spark ignition engine clearly indicated that in-house made bimetallic of Ce.Cu-ZSM5 and Ce.Fe-ZSM5 were able to reduce the NOx by 69 % and 75 % at 16 kW. The NOx reductions were much better than those of the commercial catalytic converters.