Rajakrishnamoorthy, P.Saravanan, C. G.Natarajan, RameshKarthikeyan, D.Sasikala, J.Josephin, J. S. FemildaVikneswaran, M.2024-05-192024-05-1920230016-23611873-7153https://doi.org10.1016/j.fuel.2022.127380https://hdl.handle.net/20.500.12713/5566This 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 inhouse 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.eninfo:eu-repo/semantics/closedAccessSi EngineNox ReductionMono And Bi-Metallic CatalystZsm5 ZeoliteFly AshArticle340WOS:0009237688000012-s2.0-85146476848N/A10.1016/j.fuel.2022.127380Q1