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Organic pollutant removal from marine diesel engine off-gases under electron beam and hybrid electron beam and wet scrubbing process Cover

Organic pollutant removal from marine diesel engine off-gases under electron beam and hybrid electron beam and wet scrubbing process

Nukleonika
Volume 66 (2021): Issue 4 (December 2021)
By: Yongxia SunORCID,  Andrzej G. ChmielewskiORCID,  Andrzej Pawelec,  Gösta Mattausch and  Toms Torims  
Open Access
|Nov 2021

Figures & Tables

Fig. 1

The sampling points of the organic pollutants.
The sampling points of the organic pollutants.

Fig. 2

A scheme of the sampling system.
A scheme of the sampling system.

Fig. 3

A GC-MS spectrum of the flue gas before irradiation.
A GC-MS spectrum of the flue gas before irradiation.

Fig. 4

(a) A GC-MS spectrum of flue gas collected with the CSC sorbents (a) before EB irradiation; (b) after EB irradiation; (c) after EB with wet scrubber treatment.
(a) A GC-MS spectrum of flue gas collected with the CSC sorbents (a) before EB irradiation; (b) after EB irradiation; (c) after EB with wet scrubber treatment.

Fig. 5

(a) A GC-MS spectrum of flue gas collected with the XAD-2 sorbents (a) before EB irradiation; (b) after EB irradiation; (c) after EB with wet scrubber treatment.
(a) A GC-MS spectrum of flue gas collected with the XAD-2 sorbents (a) before EB irradiation; (b) after EB irradiation; (c) after EB with wet scrubber treatment.

List of the organic compounds eluting at different RT of the GC-MS spectrums presented in Fig_ 5

RT (min)Compound nameShip emissionAfter EBAfter EB with wet scrubber
2.1842,2-Dimethoxypropane, C5H12O2, (CH3O)2-C-(CH3)2+−−
3.817Toluene, C7H8+++
27.001Methyl octanoate, C7H15COOCH3+−−
31.208Octanoic acid, C7H15COOH++−

List of removal efficiency of organic compounds after EB and EB with wet-scrubber process

CompoundShip emissionRemoval efficiency (after EB)Removal efficiency (after EB with wet scrubber)PEL [8] (mg/m3)
Toluene1.04 mg/m370.8% (0.304 mg/m3)83.2% (0.175 mg/m3)37
Nitropropanone, C3H5NO3, CH3COCH2NO2+100%100%
1-Butene, 3-nitro-, C4H7NO2, CH2=CHCH(CH3)NO2+100%100%
Methyl butyrate, C5H10O2, C3H7COOCH3+100%100%
Chlorotoluene, C7H7Cl+100%100%250
Butoxyethoxyethyl acetate, C10H20O4+89.7%100%
Dodecane, C12H2630.63 μg/m3(0.004 ppm)79.59% (6.25 μg/m3)100%
Pentadecane, C15H3210.13 μg/m3100%100%
Hexadecane, C16H3457.96 μg/m3(0.006 ppm)54.71% (26.25 μg/m3)97.79% (1.28 μg/m3, 0.13 ppb)
Heptadecane, C17H3410.72 μg/m3100%100%
Octadecane, C18H3838.05 μg/m3(0.003 ppm)48.57% (19.57 μg/m3)92.01% (3.04 μg/m3, 0.24 ppb)
Hexadecane, 2,6,10,14-tetramethyl-, C20H42+100%100%
n-Eicosane, C20H429.60 μg/m3100%100%
Hexadecanoic acid, methyl ester, C17H34O2+100%100%
Dibutyl phthalate, C16H22O4, C6H4(COOC4H9)2+7.50%86.3%5
Heneicosane, C21H4413.31 μg/m3100%100%
Octadecanoic acid, methyl ester, C19H38O2+100%100%
2,2-Dimethoxypropane, (CH3O)2-C-(CH3)2+100%100%
Methyl octanoate, C7H15COOCH3+100%100%
Octanoic acid, C7H15COOH+57.8%100%

List of organic compounds eluting at different RT of the GC-MS spectrums presented in Fig_ 4

RT (min)CompoundShip emissionAfter EBAfter EB with wet scrubber
3.833Toluene+++
7.142Nitropropanone, C3H5NO3, CH3COCH2NO2+−−
7.4421-Butene, 3-nitro-, C4H7NO2, CH2=CHCH(CH3)NO2+−−
11.042Methyl butyrate, C5H10O2, C3H7COOCH3+−−
12.700Chlorotoluene, C7H7Cl+−−
36.156Butoxyethoxyethyl acetate, C10H20O4, CH3COO(C2H4O)2C4H9++−
37.039Dodecane, C12H26++−
39.798Pentadecane, C15H32+−−
42.351Hexadecane, C16H34+++
44.739Heptadecane, C17H34+−−
47.004Octadecane, C18H38+++
47.212Hexadecane, 2,6,10,14-tetramethyl-, C20H42+−−
49.152n-Eicosane, C20H42+−−
49.717Hexadecanoic acid, methyl ester, C17H34O2+−−
50.519Dibutyl phthalate, C16H22O4, C6H4(COOC4H9)2+++
51.208Heneicosane, C21H44+−−
53.701Octadecanoic acid, methyl ester, C19H38O2+−−
DOI: https://doi.org/10.2478/nuka-2021-0028 | Journal eISSN: 1508-5791 | Journal ISSN: 0029-5922
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Language: English
Page range: 193 - 199
Submitted on: Oct 28, 2020
Accepted on: Dec 14, 2020
Published on: Nov 25, 2021
Published by: Institute of Nuclear Chemistry and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Electron beam,
Marine diesel engine,
Off-gases,
Organic pollutants,
VOC,
Wet scrubber
Related subjects:
Chemistry,
Nuclear chemistry,
Physics,
Astronomy and astrophysics,
Physics, other

© 2021 Yongxia Sun, Andrzej G. Chmielewski, Andrzej Pawelec, Gösta Mattausch, Toms Torims, published by Institute of Nuclear Chemistry and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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