An ignition delay time and chemical kinetic study of ethane sensitized by nitrogen dioxide

Deng, Fuquan; Pan, Youshun; Sun, Wuchuan; Yang, Fuqiang; Zhang, Yingjia; Huang, Zuohua

doi:10.1016/j.fuel.2017.06.099

Cited by 28 publications

(13 citation statements)

References 35 publications

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“…In our previous study of the effect of NO 2 on ethane ignition at high temperature, 7 the promoting effect of NO 2 varies obviously with temperature, which is slightly different from the results observed in this study. However, only the mixture with [NO 2 ]/[C 2 H 6 ] = 30% is studied at fuel-lean and hightemperature conditions in our previous publication.…”

Section: Resultscontrasting

confidence: 99%

“…33 As the same as with the experimental processor, the calculated ignition delay time is defined as the interval time between EOC and the ignition onset indicated by the fastest moment of pressure rise. In this study, four available literature NO x models involving the C 2 /NO x interaction chemistry (including the Deng model, 7 Zhang model, 25 Glarborg model, 2 and Gersen model 24 ) were selected to reconcile the effect of NO 2 on ethane ignition at elevated pressure and medium-to-low temperature. Figure 2 shows the comparisons between the predictions of four selected models and the measured IDTs of NO 2 /C 2 H 6 /O 2 /Ar mixtures at P c = 30 bar and φ = 0.5.…”

Section: Chemical Kinetic Modelmentioning

confidence: 99%

“…Recently, Zhang et al 25 istics of NO 2 /C 2 H 6 /O 2 /Ar mixtures with a shock tube in the pressure range of 1.2−20 atm, temperature range of 950−1700 K, and equivalence ratio range of 0.5−2.0 and found that the effect of NO 2 on the ethane ignition exhibited great temperature dependence. 7 Nonetheless, the studies regarding the NO 2 /C 2 H 6 chemistry at medium-to-low temperature and high pressure are rare. It is well-known that the chemistry at medium-to-low temperature and high pressure is significant for the design and operation of a compression engine.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Kinetic Study of the Promoting Effect of Nitrogen Dioxide on Ethane Autoignition in a Rapid Compression Machine

Deng

Zhao

et al. 2020

Energy Fuels

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Nitrogen oxides (NO x : NO2 and NO) are the main pollutants produced in combustion. Previous studies have focused on the NO x forming mechanism and control strategies but have paid less attention to the interaction between NO x and hydrocarbon fuels; even a small amount of NO x can significantly affect the ignitions of hydrocarbons. The ignition characteristic is of great importance for the optimization design and operation control of engines such as diesel engines, which are affected by the self-ignition characteristics of fuels. In this study, a rapid compression machine was used to measure the ignition delay times of seven fuel-lean C2H6/O2/Ar mixtures with [NO2]/[C2H6] ranging from 0.0 to 50% at T c = 760–970 K and P c = 30 bar. The results exhibit no negative temperature coefficient phenomenon in the ignition of ethane with or without NO2. A great reduction in the ignition delay time and the global activation energy is observed in the presence of NO2, which becomes more noticeable with increasing the NO2 concentration. Subsequently, four literature models involving the C2H6/NO2 chemistry were validated against the new measurements. Moreover, the key elementary reactions and important reaction channels controlling the ignition of C2H6/NO2 mixtures were then identified by the detailed chemical kinetic analysis.

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Section: Resultscontrasting

confidence: 99%

Section: Chemical Kinetic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and Kinetic Study of the Promoting Effect of Nitrogen Dioxide on Ethane Autoignition in a Rapid Compression Machine

Deng

Zhao

et al. 2020

Energy Fuels

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show abstract

“…Along with unceasing economic development, people's living standard enhances, and humans currently live in a time of rapid development, with daily life constantly becoming more high-tech and intelligent. However, the continuous improvement of human life will inevitably increase the demand for energy and other substances, and it will cause some environmental pollution problems, such as air and water pollutants including nitrogen oxides (NOx) [1], volatile organic compounds (VOCs) [2], sulfur dioxide (SO 2 ) [3], and heavy metal pollution [4]. Fly ash (FA), a type of industrial waste, is a coal combustion product composed of particulates [5].…”

Section: Introductionmentioning

confidence: 99%

Application of Fly Ash as an Adsorbent for Removal of Air and Water Pollutants

Yoon

Choi

2018

Applied Sciences

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Air pollutants such as volatile organic compounds (VOCs), nitrogen oxides (NOx), and sulfur dioxide (SO 2 ), as well as water pollutants (e.g., heavy metals phosphorous, fluoride, boron, phenolic compounds, and dyes), are harmful to humans and the environment. Effective control and reduction of their pollution is therefore an important topic for today's scientists. Fly ash (FA) is a type of industrial waste that can cause multiple environmental problems if discharged into the air. On the other hand, because of its high porosity, large specific surface area, and other unique characteristics, FA can also be used as a low-cost and high efficient adsorbent for treatment of environment pollutants. This paper reviews the effects of FA on treatment of the air and water pollution, including to the current status of global FA utilization, physicochemical properties, principle of adsorption, and the application direction of FA in the future. Since most researchers only studied the adsorption capacity of pure FA or zeolite (synthesized from FA), the research on the fabrication of nanofiber membranes using FA is still lacking, especially the adsorption of VOCs from air and heavy metals from wastewater using FA nanofiber membranes. Therefore, in this paper, we focus on reviewing and summarizing that FA can be spun into a fiber membrane via electrospinning with the ability to adsorb VOCs and heavy metals from air and wastewater. Moreover, we also evaluate the future application value of FA nanofiber membranes in the field of environmental pollution control. Utilization of nanofiber technology to fabricate multi-functional FA emerging composite materials to mitigate air and water pollution has great potential in the future, especially the use of pollutant materials to control other pollutants.

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“…However, in recent years, the threat posed by environmental pollution to human health and the environment has also increased. Such as air and water pollutions including nitrogen oxides (NOx) [1], volatile organic compounds (VOCs) [2], sulfur dioxide (SO2) [3], heavy metal pollution [4]. Fly ash (FA), a type of industrial waste, is a coal combustion product composed of particulates [5].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Multifunctional Hybrid Composites Using Fly Ash to Control Environmental Pollutants: A Review

Ge¹,

Yoon²,

Choi³

2018

Preprint

View full text Add to dashboard Cite

Air pollutants such as volatile organic compounds (VOCs), nitrogen oxides (NOx), sulfur dioxide (SO2), as well as water pollutants including heavy metal, are harmful to human and environment. Effective control and reduction of their pollution is therefore an important topic for today's scientists. Fly ash (FA) is a type of industrial waste that can cause multiple environmental problems if discharged into the air. On the other hand, because of its high porosity, large specific surface area, and other unique characteristics, the FA can also be used as a low-cost and high efficient adsorbent with some simple modifications. This paper reviews the effects of FA on treatment of the above air and water pollution based on our research experience over many years, including to the current status of global FA utilization, physicochemical properties, principle of adsorption, and the application direction of FA in the future. It focuses on the use of nanocomposite technology to fabricate functional FA fibrous membranes to adsorb VOCs from air, and treat heavy metal wastewater. This present review first describes the fabrication technology of FA nanocomposites and their mechanism of adsorption VOCs from air. Utilization of nanofiber technology to fabricate multi-functional FA emerging composite materials to mitigate air and water pollution has great potential in the future, especially use of pollutant material to control other pollutants.

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An ignition delay time and chemical kinetic study of ethane sensitized by nitrogen dioxide

Cited by 28 publications

References 35 publications

Experimental and Kinetic Study of the Promoting Effect of Nitrogen Dioxide on Ethane Autoignition in a Rapid Compression Machine

Experimental and Kinetic Study of the Promoting Effect of Nitrogen Dioxide on Ethane Autoignition in a Rapid Compression Machine

Application of Fly Ash as an Adsorbent for Removal of Air and Water Pollutants

Fabrication of Multifunctional Hybrid Composites Using Fly Ash to Control Environmental Pollutants: A Review

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