Comparative Emission Analysis of Diesel Engine Integrated with Mn and Ce-Si Synthesis Catalyst-Based Molds Using Base Fuel and B50 Plastic Oil

Premkumar Subramanian (), Kavitha Ganeshan, Jibitesh Kumar Panda, Rajesh Kodbal, Malinee Sriariyanun, Arunkumar Thirugnanasambandam () and Babu Dharmalingam
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Premkumar Subramanian: Center for Sustainable Materials and Surface Metamorphosis, Chennai Institute of Technology, Chennai 600069, India
Kavitha Ganeshan: Department of Science and Humanities, Agni College of Technology, Chennai 600130, India
Jibitesh Kumar Panda: Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
Rajesh Kodbal: Department of Robotics and Automation, Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune 412115, India
Malinee Sriariyanun: Chemical and Process Engineering Program, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
Arunkumar Thirugnanasambandam: Center for Sustainable Materials and Surface Metamorphosis, Chennai Institute of Technology, Chennai 600069, India
Babu Dharmalingam: Department of Mechanical Engineering, College of Engineering, Guindy, Anna University, Chennai 600025, India

Energies, 2025, vol. 18, issue 14, 1-24

Abstract: Progressive research on reducing engine emissions is highly valued due to the emissions’ significant environmental and health impacts. This comprehensive comparative study examines the catalytic efficiency of manganese (Mn) and cerium silica (Ce-Si) synthesis catalyst-based molds in a diesel engine using a selective catalytic reduction (SCR) technique with diesel and diesel–plastic oil blend (DPB) (B50). In addition to Fourier transform infrared spectroscopy (FTIR) studies, X-ray diffraction (XRD), scanning electron microscopy (SEM), and the Brunauer–Emmett–Teller (BET) method are utilized to characterize the produced molds before and after exhaust gas passes. The Ce-Si-based mold demonstrates superior redox capacity, better adsorption capacity, and better thermal stability, attributed to enhanced oxygen storage and structural integrity compared to the Mn-based mold. Under minimum load conditions, nitrogen oxide (NO) reduction efficiency peaks at 80.70% for the Ce-Si-based mold in the SCR treatment with DPB fuel. Additionally, significant reductions of 86.84%, 65.75%, and 88.88% in hydrocarbon (HC), carbon monoxide (CO), and smoke emissions, respectively, are achieved in the SCR treatment under optimized conditions. Despite a wide temperature range, Ce-Si-based mold promotes high surface area and superior gas diffusion properties. Overall, the Ce-Si-based mold provides efficient emission control in diesel engines, which paves a path for developing better environmental sustainability. The outcomes contribute to advancing environmental sustainability by supporting the achievement of SDGs 7, 11, and 13.

Keywords: diesel–plastic oil blend (B50); catalytic performance; Ce-Si catalyst-based mold; Mn catalyst-based mold; selective catalytic reduction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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