Oxidation Kinetic Analysis of Diesel Particulate Matter using Single- and Multistage Methods

Gao, Jianbing; Chen, Haibo; Tian, Gui Yun; Ma, Chaochen; Zhu, Fengxiao

doi:10.1021/acs.energyfuels.9b01297

Cited by 9 publications

(5 citation statements)

References 56 publications

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“…The results showed that the structure size distribution of the soot cake changed after NTP treatment and that NTP increased the oxidation activity of the soot cake. Gao et al. − studied the influence of NTP on the microstructure of PM under different loads. The study showed that the oxidation of PM by NTP first occurred on the surface of the particles and the partial oxidation of NTP resulted in the closer arrangement of the lattice of the particles.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Cai

Shi

et al. 2020

Environ. Sci. Technol.

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To investigate the effect of nonthermal plasma (NTP) on the microstructure and oxidation characteristics of particulate matter (PM) from diesel engines at different oxidation stages, a self-designed NTP reactor was used to conduct a timevarying oxidation test on PM samples. The oxidized PM samples were analyzed via thermogravimetric analysis and Raman spectroscopy. The results indicated that the effect of NTP could allow the elemental carbon (EC) to more easily start ignition. The oxidation activity of the EC decreased when the action time of the NTP was less than 5 min. Conversely, when the NTP action time was more than 5 min, the EC oxidation activity gradually increased. When the NTP was active for more than 10 min, it rapidly reacted with the EC, and the oxidation priority of the volatile fraction was higher than that of the EC. During the oxidation process, there are many forms of carbon structures in the particles and they have a mutual transmission relationship. The variation trend of the graphitization degree was consistent with that of the thermogravimetric results, indicating that the degree of graphitization directly affected the PM oxidation activity.

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Section: Introductionmentioning

confidence: 99%

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Cai

Shi

et al. 2020

Environ. Sci. Technol.

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“…Owing This activity-based method is a bottom-up inventory compilation approach for ship emissions based on dynamic vessel activity data for activity levels. At present, the main sources of dynamic vessel activity data are 1 AMVER, 2 ICOADS, 3 LRIT, and 4 AIS from the International Maritime Organization (IMO). The first three systems were built earlier, which have higher coverage over Atlantic-Ocean-going vessels, but lower coverage over vessels in other regions.…”

Section: Methods 1 Activity-based Methods By Dynamic Vessel Datamentioning

confidence: 99%

“…The space is delineated in a different way for each method. Taking the activity-based method by dynamic vessel data as an example, the paper roughly delineated space as follows: the large-scale region observed covers part of China and surrounding maritime waters (102.0 • E~126.0 • E, 12.6 • N~41.6 • N), see 1 in Figure 4; the medium-scale region observed is the Yangtze River Delta region (120.0 • E~124.0 • E, 27.6 • N~33.6 • N), see 2 in Figure 4; and the small-scale region observed is Tianjin Port (117.35 • E~118.34 • E, 38.64 • N~39.24 • N), see 3 in Figure 4.…”

Section: Scope Of Researchmentioning

confidence: 97%

“…Out of all emissions caused by the sea transportation, ship emissions pick up a high proportion. A large amount of air pollutants such as NO x , SO 2 , PM, etc., are emitted from ship engines, which greatly affect air quality and public health in port cities [2,3]. In order to identify the effect of ship emissions on air quality and formulate effective control measures, creating ship emission inventories is of vital importance [4].…”

Section: Introductionmentioning

confidence: 99%

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Comparative Analysis, Use Recommendations, and Application Cases of Methods for Develop Ship Emission Inventories

Zhang

Cheng

et al. 2022

Atmosphere

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Ship exhaust emissions have been considered as a significant source of air pollution that has an adverse impact on the global climate and human health. It is of vital importance to create an accurate ship emission inventory for the purpose of formulating effective control measures. A wide range of inventory compilation methods have been proposed around the globe, and there has long been a pressing need to analyze and compare these methods in depth. This study sorted out and categorized inventory compilation methods of ship emissions in recent decades. Five main methods were compared and analyzed by their applicability, complexity, time of calculation, accuracy of results, etc. In addition, a new method was proposed to develop an emission inventory based on a vessel energy consumption reporting system. This method is believed to have the potential advantages to produce results of higher accuracy and temporal and spatial resolutions. To perform the validation, three cases at different scales were selected in part of China and surrounding maritime waters (large-scale), the Yangtze River Delta region (medium-scale), and Tianjin Port (small-scale), respectively. The analysis results show that: each of methods have different technical characteristics. Computed results significantly between methods, with the maximum deviation of up to 87%. It is advisable that the optimal method should be chosen based on the actual needs in inventory compilation and the data available. In terms of accuracy of results, Methods 1 and 5 offer moderately high accuracy; Method 2 provides average accuracy; while Methods 3 and 4 produce low accuracy. In terms of resolution of results, Methods 1 and 5 provide high-resolution temporal and spatial distribution of ship emissions; Method 2 delivers low-resolution spatial distribution; while Methods 3 and 4 are incapable of spatial distribution. In terms of applicability, Method 1 applies to the calculation of inventories of varying scales; Method 2 is more applicable to small-scale calculations, such as a port; Methods 3, 4, and 5 are more desirable for large-scale calculations, such as a country. The author recommends Methods 5, 1, 3, and 2/4 in a descending order of preference for large-scale ship emissions inventory compilations; recommends Method 5 (if accuracy is the first priority) or Method 1 (if temporal and spatial resolutions are given first priority), followed by Methods 2, 3, and 4 in a descending order of preference for small/medium-scale ship emissions inventory compilations. These results may serve to help inventory compilers choose an applicable method and support improvements in inventory compilation methods.

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“…At an energy density of 27 J/L, the maximum reductions of the soot and soluble organic fraction (SOF) were 73% and 37%, respectively. The effects of NTP on PM microstructure under different loads were investigated by Gao et al [20,21] The results showed that the PM oxidation by NTP first occurred on the particle surface, and the lattice arrangement of the particles was more compact after the NTP treatment. Ji et al [22] investigated the effect of NTP on PM oxidation using Raman spectroscopy and thermogravimetric analysis (TGA).…”

Section: Introductionmentioning

confidence: 99%

The effect of nonthermal plasma on the oxidation and removal of particulate matter under different diesel engine loads

Zhu

Cai

Shi

et al. 2021

Plasma Processes & Polymers

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Oxidation Kinetic Analysis of Diesel Particulate Matter using Single- and Multistage Methods

Abstract: This is a repository copy of Oxidation kinetic analysis of diesel particulate matter using single-and multi-stage methods.

Cited by 9 publications

References 56 publications

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Comparative Analysis, Use Recommendations, and Application Cases of Methods for Develop Ship Emission Inventories

The effect of nonthermal plasma on the oxidation and removal of particulate matter under different diesel engine loads

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