Development of high-gravity technology for removing particulate and gaseous pollutant emissions: Principles and applications

Pan, Shu-Yuan; Wang, Pengchen; Chen, Qian; Jiang, Wenju; Chu, Ying‐Hao; Chiang, Pen‐Chi

doi:10.1016/j.jclepro.2017.02.108

Cited by 54 publications

(9 citation statements)

References 83 publications

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“…Supergravity is a new high efficiency chemical process strengthening technology, which has the advantages of high mass transfer efficiency, short contact time, small size of equipment. It is used in the fields of chemical industry, environmental protection and energy, and can remove NOx, SOx, CO2 and PM [189]. Fig.…”

Section: De-soxmentioning

confidence: 99%

A review on regulations, current status, effects and reduction strategies of emissions for marine diesel engines

Wang

2020

Fuel

212

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Marine diesel engines, which provide main power source for ships, mainly contribute to air pollution in ports and coastal areas. Thus there is an increasing demand on tightening the emission standards for marine diesel engines, which necessitates the research on various emission reduction strategies. This review covers emission regulations and emission factors (EFs), environmental effects and available emission reduction solutions for marine diesel engines. Not only the establishment of the emission control areas (ECAs) in the regulations but also many experiments show high concerns about the sulfur limits in fuels, sulfur oxides (SOx) and nitrogen oxides (NOx) emissions. Research results reveal that NOx emissions from marine diesel engines account for 50% of total NOx in harbors and coastal regions. Sulfur content in fuel oil is an important parameter index that determines the development direction of emission control technologies. Despites some issues, biodiesel, methanol and liquefied nature gas (LNG) play their important roles in reducing

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Section: De-soxmentioning

confidence: 99%

A review on regulations, current status, effects and reduction strategies of emissions for marine diesel engines

Wang

2020

Fuel

212

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“…Even the FGD technology has a number of variations like the dry, semidry and wet scrubbers. Using SOx absorbers like Ca(OH)2 (Wang H 2018), lime, phosphate and many others have been attempted (Pan S-Y et al 2017).…”

Section: Pollutant Dispersion: Particulate Matter (Pm)mentioning

confidence: 99%

Dispersion of Particulate Matter and Sulphur Oxides from Thermal Power Plant: A Case Study

Singh¹,

Srikanth²,

Ramasesha³

2020

Preprint

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Coal-fired thermal plants (CTPP) are known to pollute the atmosphere with emission of many greenhouse gases and particulate matter. The power generation from these thermal plants cannot be stopped completely because it forms the backbone of the grid power supply. It is necessary to study the dispersion patterns of pollutants that affect the health of the people. The dispersion patterns are location specific since they depend on local meteorological conditions. In this study, the dispersion of particulate matter (PM) and sulphur dioxide (SO2) from a CTPP with 275 m high stack are studied under different atmospheric boundary layer (ABL) of neutral, stable and unstable conditions up to a distance of 30 km from the stack. The plume of the PM spreads under all conditions. During some parts of the day, PM settles around the stack while at other times PM keeps suspending in the air for the full distance under study. Sulphur dioxide dilutes to concentrations below the detection limits in about 12-13 km from the stack for neutral and unstable ABL whereas for the stable ABL, the dispersion is up to 30 km. The 24 h weighted average concentration of sulphur dioxide, at 10 m height from the ground, is 14.2 mg/m3 at a distance of 25 kms from the CTPP, which is comparable with the value of 9.2 mg/m3 measured at the Air Quality Stations located around the same distance. Based on the results policy changes that need to be implemented are suggested.

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“…SCCs and NCCs are one of the major environmental threats resulting in hazards for human life and health. For instance, combustion of fossil fuels releases SO x and NO x which make serious risks such as acid rain and respiratory diseases for ecosystem and human health [11–13] . Consequently, governments have adopted regulations and laws for the emission of these compounds [14,15] .…”

Section: Introductionmentioning

confidence: 99%

Deep Denitrogenation of Model Diesel Fuel Using Ni‐doped Mesoporous Carbon: Synthesis Route and Adsorption Study

Delkhosh

Vahid²,

Baniyaghoob

et al. 2021

ChemistrySelect

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Nickel‐doped mesoporous carbon (MC) materials with 1, 4, and 7 wt. % nickel/MC, were synthesized and utilized for the elimination of indole, as representative of nitrogen‐containing compounds, from a model diesel fuel. Different instrumental techniques, including Fourier‐transform infrared (FT‐IR) spectroscopy, X‐Ray diffraction (XRD), N2 adsorption‐desorption analyses, field emission scanning electron microscopy (FE‐SEM), energy‐dispersive X‐ray spectroscopy (EDXS), and transmission electron microscopy (TEM) were used to characterize the synthesized Ni‐doped mesoporous carbons. The XRD and N2 adsorption‐desorption results revealed that all the nickel‐modified materials had ordered hexagonal mesostructures. Response surface methodology coupled with a three‐variable, three‐level Box‐Behnken design (BBD) involving three center points and one response was employed for evaluating the influence of the three input parameters, namely temperature (A), contact time (B), and Ni content (C) on the adsorption yield. The optimum removal efficiency (96.5 %) was obtained at 42 °C, 1 wt. % of Ni loading, and 55 min contact time; also, possible adsorption mechanisms might be due to van der Waals interaction, H‐bonding, and π‐complexation. Additionally, the equilibrium data were analyzed using Langmuir, Freundlich, and Temkin isotherm models, and the Freundlich isotherm model showed a better fit to experimental data (R2 =0.9978).

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Development of high-gravity technology for removing particulate and gaseous pollutant emissions: Principles and applications

Cited by 54 publications

References 83 publications

A review on regulations, current status, effects and reduction strategies of emissions for marine diesel engines

A review on regulations, current status, effects and reduction strategies of emissions for marine diesel engines

Dispersion of Particulate Matter and Sulphur Oxides from Thermal Power Plant: A Case Study

Deep Denitrogenation of Model Diesel Fuel Using Ni‐doped Mesoporous Carbon: Synthesis Route and Adsorption Study

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