Combined Effect of a Catalytic Reduction Device with Waste Frying Oil-Based Biodiesel on NOx Emissions of Diesel Engines
Open Access
- 1 January 2022
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Modern Mechanical Engineering
- Vol. 12 (03), 63-73
- https://doi.org/10.4236/mme.2022.123004
Abstract
Internal combustion engines with application in automobiles and other relevant industries constitute significant environmental pollution via the release of toxic exhaust gasses like carbon monoxide (CO), hydrocarbons (HC), particulate matter (PM), and nitrogen oxide (NOx). Engine researchers and manufacturers are challenged to develop external and internal measures to ensure environmentally friendly solutions to accommodate and conform to the growing list of emission standards. Therefore, this work presents an experimental investigation of the NOx emission profile of a diesel engine that is fuelled and fitted with waste frying oil-based biodiesel and catalytic converter. Using a single-cylinder, four-stroke air-cooled CI engine at a constant speed of 1900 rpm and different loadings of 25%, 50%, 75%, and 100%; fitted with a catalytic converter at the exhaust outlet of the engine and linked to a dynamometer and a gas analyser, an experiment was conducted at biodiesel/diesel volume blends of B0 (0/10), B5 (5/95), B20 (20/80), B30 (30/70), B70 (70/30), B100 (100/0); and 30% concentration (v/v), 0.5 litre/hr flow rate of aqueous urea from the catalytic converter. The results show an increasing NOx emission as the biodiesel component increased in the blend. The catalytic converter showed a downward NOx reduction with a significant 68% reduction in efficiency at high exhaust gas temperatures. It is concluded that the combined utilisation of waste frying oil-based biodiesel and the catalytic converter yields substantial NOx emission reduction.Keywords
This publication has 24 references indexed in Scilit:
- Biodiesel Production from Used Vegetable Oil Collected from Shops Selling Fritters in KolkataEnergy Procedia, 2014
- Emission reduction from a diesel engine fueled by pine oil biofuel using SCR and catalytic converterAtmospheric Environment, 2013
- Waste Cooking Oil Biodiesel Use in Two Off-Road Diesel EnginesISRN Renewable Energy, 2012
- Biodiesel Quality, Standards and PropertiesPublished by IntechOpen ,2011
- Combustion and emission characteristics of a diesel engine fuelled with jatropha and diesel oil blendsThermal Science, 2011
- Effect of the Degree of Unsaturation of Biodiesel Fuels on Engine Performance, Combustion Characteristics, and EmissionsEnergy & Fuels, 2010
- Bio-diesel as an alternative fuel for diesel engines—A reviewRenewable and Sustainable Energy Reviews, 2009
- The effect of biodiesel fuel obtained from waste frying oil on direct injection diesel engine performance and exhaust emissionsRenewable Energy, 2008
- Combination of biodiesel-ethanol-diesel fuel blend and SCR catalyst assembly to reduce emissions from a heavy-duty diesel engineJournal of Environmental Sciences, 2008
- Experimental Study of Emission Parameters of Biodiesel Fuels Obtained from Canola, Hazelnut, and Waste Cooking OilsEnergy & Fuels, 2007