Effect of exhaust gas recirculation on a CRDI engine fueled with waste plastic oil blend

Ayodhya, Archit S.; Lamani, Venkatesh T.; Bedar, Parashuram; Kumar, Girish

doi:10.1016/j.fuel.2018.04.128

Cited by 41 publications

(8 citation statements)

References 27 publications

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“…Kumar et al (2013) observed 40% higher NOx emissions than diesel. Earlier, a surge in NOx was observed for pyrolysis oil. , The prompt mechanism for NOx formation links the emissions to fuel reaction kinetics, where the carbon compound plays the role of a facilitator. The reaction given below explains the mechanism for NOx formation. It can be derived from the formulations that a fuel with higher carbon number produces higher NOx emissions.…”

Section: Resultsmentioning

confidence: 99%

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Clean Energy from Plastic: Production of Hydroprocessed Waste Polypropylene Pyrolysis Oil Utilizing a Ni–Mo/Laponite Catalyst

et al. 2020

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This research demonstrates a process to convert polypropylene pyrolysis oil (PPO) into diesel. The hydroprocessing of PPO (HPPO-B) utilizing a Ni–Mo/Lap bimetal catalyst has been attempted in this study. Hydroprocessing of plastic pyrolysis oil had been attempted earlier, but the hydroprocessing of PPO utilizing a bimetal catalyst and the corresponding validation suites consisting of physicochemical tests, composition comparison with diesel, and diesel engine trials have not yet been reported. The physicochemical properties of the produced HPPO-B matched EN590 standard (European diesel standards) requirements. The hydroprocess conditions (70 bar and 350 °C) and the synthesized Ni–Mo/modified Lap catalyst have been responsible for producing n-alkanes, isoalkanes, and aromatics in proportions that gave a 95% match with diesel. Diesel engine combustion and emissions of HPPO-B matched those of diesel. HPPO-B provides the opportunity to utilize plastic solid waste (PSW) as a transport fuel. The results of HPPO-B inspire and encourage pursuance of the hydroprocess path for protecting the environment from hazardous plastic solid waste (PSW).

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Section: Resultsmentioning

confidence: 99%

“…Earlier, a surge in NOx was observed for pyrolysis oil. 66,67 The prompt mechanism for NOx formation links the emissions to fuel reaction kinetics, where the carbon compound plays the role of a facilitator. The reaction given below explains the mechanism for NOx formation.…”

mentioning

confidence: 99%

Clean Energy from Plastic: Production of Hydroprocessed Waste Polypropylene Pyrolysis Oil Utilizing a Ni–Mo/Laponite Catalyst

et al. 2020

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“…The nitrogen oxide (NO X ) emission in exhaust gas emissions of CI engines is the combination of two components, namely, nitric oxide (NO) and nitrogen dioxide (NO 2 ). 49 The variation of NO X emissions under various engine operating loads for diesel fuel and WPOB is illustrated in Figure 7c. It was observed that NO X emissions increase as the engine operating load increases for both fuels.…”

Section: Resultsmentioning

confidence: 99%

“…The nitrogen oxide (NO X ) emission in exhaust gas emissions of CI engines is the combination of two components, namely, nitric oxide (NO) and nitrogen dioxide (NO 2 ) . The variation of NO X emissions under various engine operating loads for diesel fuel and WPOB is illustrated in Figure c.…”

Section: Resultsmentioning

confidence: 99%

Utilizing Waste Plastic Bottle-Based Pyrolysis Oil as an Alternative Fuel

et al. 2022

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In the present work, an experimental investigation is carried out on the use of waste plastic oil produced from waste poly(ethylene terephthalate) (PET) bottles (WPOB) as an alternative fuel for diesel engines. The physical and chemical properties of WPOB were analyzed, and it was found that it has fuel properties similar to those of petroleum fuels. The WPOB was tested in a diesel engine to evaluate the effect of WPOB on combustion and emissions characteristics. In addition, particulate matter (PM) emissions generated by the combustion of WPOB were analyzed. The combustion of WPOB was retarded with respect to diesel fuel, resulting in higher carbon-based emissions. The thermogravimetric analysis (TGA) results show that the temperature to reach the maximum rate of soot oxidation was lower with WPOB combustion. Because of the significant delay at the start of combustion and increase in emissions, the direct use of WPOB in the diesel engine is not recommended. It is suggested that WPOB can be used as a blend component to reduce the amount of diesel fuel used in diesel engines. Thus, further study on the effect of diesel fuel blended with WPOB on the combustion and emissions characteristics was performed. The results reveal that the maximum WPOB present in diesel fuel to avoid the increase in carbon-based emissions is 20% by volume to keep combustion and emissions characteristics similar to those of diesel fuel.

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“…The exhaust gas recycle (EGR) is a technique to minimize the formation of NOx in IC engines [157][158][159][160]. A fraction of the exhaust gases is recycled through a control valve from the exhaust to the engine intake manifold, which reduces the cylinder temperature and hence the quantity of Nox being formed is reduced [161][162][163][164][165].…”

Section: Exhaust Gas Recycle (Egr)mentioning

confidence: 99%

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Khan

2020

Energies

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The ever-increasing demand for transport is sustained by internal combustion (IC) engines. The demand for transport energy is large and continuously increasing across the globe. Though there are few alternative options emerging that may eliminate the IC engine, they are in a developing stage, meaning the burden of transportation has to be borne by IC engines until at least the near future. Hence, IC engines continue to be the prime mechanism to sustain transportation in general. However, the scarcity of fossil fuels and its rising prices have forced nations to look for alternate fuels. Biodiesel has been emerged as the replacement of diesel as fuel for diesel engines. The use of biodiesel in the existing diesel engine is not that efficient when it is compared with diesel run engine. Therefore, the biodiesel engine must be suitably improved in its design and developments pertaining to the intake manifold, fuel injection system, combustion chamber and exhaust manifold to get the maximum power output, improved brake thermal efficiency with reduced fuel consumption and exhaust emissions that are compatible with international standards. This paper reviews the efforts put by different researchers in modifying the engine components and systems to develop a diesel engine run on biodiesel for better performance, progressive combustion and improved emissions.

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Effect of exhaust gas recirculation on a CRDI engine fueled with waste plastic oil blend

Cited by 41 publications

References 27 publications

Clean Energy from Plastic: Production of Hydroprocessed Waste Polypropylene Pyrolysis Oil Utilizing a Ni–Mo/Laponite Catalyst

Clean Energy from Plastic: Production of Hydroprocessed Waste Polypropylene Pyrolysis Oil Utilizing a Ni–Mo/Laponite Catalyst

Utilizing Waste Plastic Bottle-Based Pyrolysis Oil as an Alternative Fuel

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

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