Experimental Investigation of Plasma Oxidization of Diesel Particulate Matter

Tang, Xiujuan; Lu, Haiquan; Lin, Lili; Yao, Shuiliang

doi:10.1007/s11090-012-9430-8

Cited by 16 publications

(10 citation statements)

References 19 publications

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“…NO, NO 2 and the reactive species generated in the discharge facilitate the soot oxidation [37]. The catalysts with higher oxygen storage capacity tends to be re-oxidized more easily by oxidants such as O, NO [57]. The OH radicals also facilitate the re-oxidization of the metal oxide vacancies generated by the consumption of oxygen.…”

Section: Plasma-catalytic Soot Oxidation On Different Metal Oxidesmentioning

confidence: 99%

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Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Ranji‐Burachaloo

Masoomi‐Godarzi

Khodadadi

et al. 2016

Applied Catalysis B: Environmental

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Section: Plasma-catalytic Soot Oxidation On Different Metal Oxidesmentioning

confidence: 99%

“…3). The following mechanism is proposed for soot oxidation by plasma discharge without catalyst [37,57].…”

Section: Mechanism Of Plasma (-Catalytic) Soot Oxidationmentioning

confidence: 99%

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Ranji‐Burachaloo

Masoomi‐Godarzi

Khodadadi

et al. 2016

Applied Catalysis B: Environmental

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“…Higher activation energy indicates that it International Journal of Chemical Engineering is more difficult for the chemical reaction to proceed. Based on the thermogravimetric analysis (TG and DTG curve), origin curve fitting was performed based on the least square method to obtain a fitting curve of the particulate matter in an O 2 atmosphere [26][27][28], as shown in Figure 7. e results show that the linear regression coefficient of the fitting curve was greater than 0.98, and thus, the fitting result is accurate.…”

Section: Activation Energymentioning

confidence: 99%

Effect of Lubricant Additives on the Oxidation Characteristics of Diesel Engine Particulate Matter

Zhao

et al. 2020

International Journal of Chemical Engineering

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Three common lubricant additives, including an antioxidant, detergent, and an antifoamer, were added to diesel fuel to perform a diesel engine bench test. Particulate matter samples underwent thermogravimetric analysis to investigate the effect of lubricant additives on the particulate matter oxidation process, characteristic temperature, and activation energy. The results showed the following. Different lubricant additives result in different variation trends in the thermogravimetric curve of a particulate matter sample by varying the rotating speed and torque. When the rotating speed was stable, as the torque increased, the ignition temperature of the particulate matter of Fuel C declined rapidly during the initial stage and then increased rapidly. When the torque was stable, as the rotating speed increased, the ignition temperature of the particulate matter of Fuel C increased initially and then declined. The particulate matter of Fuel C had the lowest level of activation energy at approximately 57.89 J·mol−1. The particulate matter of Fuel A had the highest level of activation energy at approximately 74.10 J·mol−1. When the fuel has a higher cetane number, the combustion chemical reaction rate is faster and results in a more complete reaction. The active substance contact surface increases, which facilitates particulate matter oxidation.

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“…With the continuous increase in the number of diesel engines with fixed and mobile uses, today diesel exhaust is considered as one of the important sources in the emission of air pollutants [10,11]. The International Agency for Research on Cancer (IARC) has also classified it -diesel engine exhaustas a carcinogen for humans (Group 1) [12]. Although diesel emissions are a complex mixture of thousands of gases and particles, nitrogen oxides (NO X = NO + NO2) are one of the most important because they account for about 50% of all NOx emissions (The 50% share of diesel exhaust in total production NOx) [10,13].…”

Section: Introductionmentioning

confidence: 99%

“…Among the radicals and active species produced in plasma, ozone (O 3 ), which has a longer lifetime, can play a key role in oxidation. An examination of the effect of this method on the elimination of NO X and PM in studies and preliminary results shows a significant improvement in gas composition as well as particle emission; Unlike the DPP method, the return reaction to NO does not occur in indirect oxidation, so a higher concentration of NO X can be eliminated; However, the need to produce the right amount of ozone and longer resident time [12,20,27,34].…”

Section: Introductionmentioning

confidence: 99%

Real diesel engine exhaust emission control: indirect non-thermal plasma and comparison to direct plasma for NOX, THC, CO, and CO2

Khani

Pour

Rashnoo

et al. 2020

J Environ Health Sci Engineer

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Recently, diesel engine exhaust emission control by non-thermal plasma (NTP) technology has been shown to be promising. However, carbon and soot deposition on the inner surface of the NTP reactor for direct plasma processing decreased the efficiency of the plasma process throughout the experiments. In the present work, the feasibility of indirect plasma processing was investigated as an innovative and novel method compared to direct plasma processing. Air was directed through an NTP at an applied voltage of V P-P = 7 kV and a flow rate of 1-4 L/min, and then, it was combined with engine exhaust gas at a flow rate of 5 L/min. In this case, the maximum conversion of NO X was 64.9% at 4 L/min. However, for direct plasma processing at 5 L/ min, NO conversion was 58%, which proves that the indirect NTP process can decrease NO X concentration effectively. The maximum conversion for unburned hydrocarbon (UHC), carbon monoxide (CO) and carbon dioxide (CO 2 ) was obtained as 2%, 4% and 0.7% at 4, 2 and 3 L/min in indirect plasma processing; While their remove rate for direct plasma processing was 16.3%, −0.5% and 13.2%, respectively.

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Experimental Investigation of Plasma Oxidization of Diesel Particulate Matter

Cited by 16 publications

References 19 publications

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation

Effect of Lubricant Additives on the Oxidation Characteristics of Diesel Engine Particulate Matter

Real diesel engine exhaust emission control: indirect non-thermal plasma and comparison to direct plasma for NOX, THC, CO, and CO2

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