Catalytic desulfurization of marine gas oil and marine diesel oil under methane environment

The purpose of this paper is to study the applicability of thermal processed fuel oil (hereafter called waste plastic disposal, or WPD) of diesel engines using low-quality fuel oil. In the experiment, stability of engine operation and components of exhaust gas, such as NOx and COx, were inspected from basic and applicable points of view. This paper illustrates a new test and result of WPD oil applied to marine diesel engines. In recent years, efforts have to be made to develop an advanced technique for recycling waste plastics in order to use scrapped plastics as fuel for diesel engines. It is very important and necessary for us to cope with the increasing calorific value and to satisfy the growing need of environment protection. The experimental fuel oil is obtained by a mixing of diesel oil, WPD, and water.

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Production, trade and supply of gas oil/diesel oil

Energy Statistics Yearbook (Ser. J) - Energy Statistics Yearbook 2015 ◽

10.18356/98ce0661-en ◽

2018 ◽

pp. 256-274

Keyword(s):

Diesel Oil ◽

Gas Oil

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Production, trade and supply of gas oil/diesel oil

Energy Statistics Yearbook 2017 - Energy Statistics Yearbook (Ser. J) ◽

10.18356/bd1d465d-en ◽

2020 ◽

pp. 267-285

Keyword(s):

Diesel Oil ◽

Gas Oil

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Laboratory and field trials to determine the modes of action of malathion and diesel oil against Culicoides furens (Poey) (Dipt., Ceratopogonidae)

Bulletin of Entomological Research ◽

10.1017/s0007485300040311 ◽

1971 ◽

Vol 60 (3) ◽

pp. 399-407

Author(s):

John B. Davies

Keyword(s):

Emerging Adults ◽

Larval Mortality ◽

Adult Emergence ◽

Field Trials ◽

Diesel Oil ◽

Modes Of Action ◽

Marine Diesel ◽

Pupal Mortality

One field and four laboratory trials were run to determine the reason for the success of 1–8% malathion in diesel oil in controlling Culicoides furens (Poey) in swamp mud in Jamaica. In the laboratory malathion and marine diesel oil (1:4000) was an effective larvicide for up to two days after application to the mud, but diesel oil alone gave only slight mortality even after six days. Judged by the emergence of adults, diesel oil gave 100% pupal mortality for five days and still showed some effect after four weeks; this effect was not improved by the addition of malathion. In the field, counts of emerging adults showed that diesel oil at 106–5 gal/acre gave 97–8% control of C. furens for up to eight weeks after application. It is concluded that, because of the possibility of pupicidal action, insecticides should be assessed on adult emergence rather than larval mortality.

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Particulate Emissions From a Two-Stroke Marine Diesel Engine Operated With Heavy Fuel Oil

Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components ◽

10.1115/icef2002-503 ◽

2002 ◽

Cited By ~ 1

Author(s):

Tatsuro Tsukamoto ◽

Kenji Ohe ◽

Hiroshi Okada

Keyword(s):

Diesel Engine ◽

Sulfur Content ◽

Diesel Oil ◽

Fuel Oil ◽

Particulate Emissions ◽

Marine Diesel Engine ◽

Heavy Fuel Oil ◽

Particulate Emission ◽

Marine Diesel ◽

Test Engine

In these years, a problem of air pollution in a global scale becomes a matter of great concern. In such social situation, diesel engines are strongly required to reduce the NOx and particulate emission in the exhaust gas. In this paper, measurements of particulate emissions from a low speed two-stroke marine diesel engine were conducted with several kinds of diesel oil and a heavy fuel oil, to know the characteristics of particulate emissions at the present situation. The effects of engine load and sulfur content of the fuel on the particulate emission have been examined. The particulate emission from the test engine was measured by partial-flow dilution tunnel system, and particulate matter collected on the filter was divided into four components, SOF (soluble organic fraction), sulfate, bound water and dry soot, by Soxlet extraction and ion chromatograph. Results show that the particulate emission from the test engine operated with heavy fuel oil is three times as much as the value with diesel oil and that not only sulfate but SOF and dry soot concentration increase with the increase in fuel sulfur content. It is also found that the conversion rate from sulfur in fuel into sulfate in particulate matter is nearly independent of the sulfur content in the fuel and increases with the increase in the engine load.

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Characteristics of marine shipping emissions at berth: profiles for PM and VOCs

10.5194/acp-2017-1132 ◽

2018 ◽

Cited By ~ 2

Author(s):

Qian Xiao ◽

Mei Li ◽

Huan Liu ◽

Fanyuan Deng ◽

Mingliang Fu ◽

...

Keyword(s):

Mass Spectrometer ◽

Diesel Oil ◽

Atmospheric Pollutants ◽

Negative Ion ◽

Average Percentage ◽

Port Area ◽

Element Carbon ◽

Before And After ◽

Marine Diesel ◽

Low Sulfur Content

Abstract. Emissions from ships at berth played an important role in the exposure of atmospheric pollutants to high density population in port areas, but these emissions were not understood very well. In this study, volatile organic compounds (VOCs) and particle emissions from 20 container ships at berth were sampled and analyzed during the fuel switch period at Jingtang Port in Hebei Province, China. VOCs and particles were analyzed by gas chromatography-mass spectrometer (GC-MS) and the Single Particle Aerosol Mass Spectrometer (SPAMS), respectively. VOCs analysis showed that alkanes and aromatics, especially benzene, toluene and heavier compounds e.g. n-heptane, n-octane, n-nonane, dominated the total identified species. Secondary organic aerosol yields and ozone forming potential were 0.017 ± 0.007 g SOA/g VOCs and 2.63 ± 0.37 g O3/g VOCs, respectively. Both positive and negative ion mass spectra from individual ship were derived and intensity of specific ions could be quantified. Results showed that element carbon (35.74 %), element carbon-organic carbon mixture (33.95 %) and Na-rich particles (21.12 %) were major classes with a total number ratio of 90.7 %. Particles from ship auxiliary engines were in a size range of 0.2 to 2.5 μm, with a peak occurring at around 0.4 μm. The issue of vanadium as tracer element was discussed that V was not a proper tracer when using low sulfur content diesel oil. The average percentage of sulfate particles from shipping emissions before and after switching to marine diesel oil were 23.82 % and 23.61 % respectively. The total results provide robust evidences in port area air quality assessment and source apportionment.

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Nitrogen Oxides and Particulate Matter from Marine Diesel Oil (MDO), Emulsified MDO, and Dimethyl Ether Fuels in Auxiliary Marine Engines

Journal of Marine Science and Engineering ◽

10.3390/jmse8050322 ◽

2020 ◽

Vol 8 (5) ◽

pp. 322

Author(s):

Jinkyu Park ◽

Iksoo Choi ◽

Jungmo Oh ◽

Changhee Lee

Keyword(s):

Particulate Matter ◽

Nitrogen Oxides ◽

Dimethyl Ether ◽

Diesel Oil ◽

Low Carbon ◽

Emulsified Fuel ◽

Marine Vehicles ◽

Marine Engines ◽

Marine Diesel ◽

Chamber Temperature

Exhaust gases from ships and automobiles have a significant impact on people and the environment. As a result, diesel engines used in land and marine vehicles are gradually being restricted, and low-carbon engines are under development. This study considers marine diesel oil (MDO) that is used in ships to meet the emission regulations required by the International Maritime Organization. This investigation explores the method and application technology for the reduction of nitrogen oxides (NOx) and particulate matter using emulsified fuel and mass-produced dimethyl ether (DME) fuel, which are analyzed. When comparing emulsified fuel and DME fuel to MDO, which is a ship oil, NOx are reduced by 20–45% and the particulate matter is reduced by 60–97%. When emulsified fuel containing moisture is used, the combustion chamber temperature is lowered due to the optimal expansion by moisture contained in the fuel. The particulate matter is also reduced. When DME fuel is used, it reduces the particulate matter by more than 97% in comparison with the existing MDO fuel and the emulsified fuel. The conditions are believed to be suitable for combustion and they can be satisfied by supplying oxygen during post-combustion.

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