Study on Lubricity of Low Sulfur Diesel Fuels

1997 ◽  
Author(s):  
Masatoshi Miura ◽  
Tomoaki Ikeda ◽  
Haruo Takizawa ◽  
Haruhisa Yoshida ◽  
Hiromichi Ikebe
Keyword(s):  
Diesel Fuels ◽  
Low Sulfur

Formulation and tribological behavior of ultra-low sulfur diesel fuels microemulsified with glycerin

Fuel ◽  
2021 ◽  
Vol 292 ◽  
pp. 120257
Author(s):  
Igor M.A. Uchôa ◽  
Marcell S. Deus ◽  
Eduardo L. Barros Neto
Keyword(s):  
Tribological Behavior ◽  
Diesel Fuels ◽  
Ultra Low Sulfur Diesel ◽  
Low Sulfur

scholarly journals Emissions and In-Cylinder Combustion Characteristics of Fischer-Tropsch and Conventional Diesel Fuels in a Modern CI Engine

2005 ◽  
Author(s):  
Alexander G. Sappok ◽  
Jeremy T. Llaniguez ◽  
Joseph Acar ◽  
Victor W. Wong
Keyword(s):  
Combustion Characteristics ◽  
Operating Conditions ◽  
Fuel Properties ◽  
Emissions Reduction ◽  
Cylinder Pressure ◽  
Fischer Tropsch ◽  
Diesel Fuels ◽  
Ultra Low Sulfur Diesel ◽  
Low Sulfur ◽  
Detailed Chemical

Derived from natural gas, coal, and even biomass Fischer-Tropsch (F-T) diesel fuels have a number of very desirable properties. The potential for emissions reduction with F-T diesel fuels in laboratory engine tests and on-road vehicle tests is well documented. While a number of chemical and physical characteristics of F-T fuels have been attributed to the observed reduction in emissions, the actual effects of both the fuel properties and in-cylinder combustion characteristics in modern diesel engines are still not well understood. In this study a 2002, six-cylinder, 5.9 liter, Cummins ISB 300 diesel engine, outfitted with an in-cylinder pressure transducer. was subjected to a subset of the Euro III 13-mode test cycle under steady-state operating conditions. Emissions and in-cylinder pressure measurements were conducted for neat F-T diesel, low sulfur diesel (LSD), ultra-low sulfur diesel (ULSD), and a blend of FT/LSD. In addition, a detailed chemical analysis of the fuels was carried out. The differences in the measured combustion characteristics and fuel properties were compared to the emissions variations between the fuels studied, and an explanation for the observed emissions behavior of the fuels was developed.

scholarly journals Thermal efficiency investigations on the self-ignition test engine fed with marine low sulfur diesel fuels

2019 ◽  
Vol 178 (3) ◽  
pp. 15-19
Author(s):  
Zbigniew KORCZEWSKI
Keyword(s):  
Thermal Efficiency ◽  
Power Plants ◽  
Engine Performance ◽  
The Self ◽  
Laboratory Research ◽  
Diesel Fuels ◽  
University Of Technology ◽  
Marine Diesel ◽  
Test Engine ◽  
Low Sulfur

Within the article an issues of implementing the new kinds of marine diesel fuels into ships’ operation was described taking into ac-count restrictions on the permissible sulphur content introduced by the International Maritime Organization. This is a new situation for ship owners and fuel producers, which forces the necessity to carry out laboratory research tests on especially adapted engine stands. How to elaborate the method enabling quality assessment of the self-ignition engine performance, considered in three categories: ener-gy, emission and reliability, represents the key issue of the organization of such research. In the field of energy research, it is necessary to know the thermal efficiency of the engine as the basic comparative parameter applied in diagnostic analyzes and syntheses of sequen-tially tested marine diesel fuels. This type of scientific research has been worked out for two years in the Department of Marine and Land Power Plants of the Gdańsk University of Technology, as a part of the statutory activities conducted in cooperation with the Regional Fund for Environmental Protection in Gdansk and the LOTOS Group oil company. This article presents the algorithm and results of thermal efficiency calculations of the Farymann Diesel D10 test engine in the con-ditions of feeding with various low-sulfur marine diesel fuels: distillation and residual fuels. This parameters stands for one of ten diag-nostic measures of the ranking of energy and emission quality of newly manufactured marine diesel fuels being built at the Department.

Exhaust Emissions From a 1,500 kW EMD 16-645-E Locomotive Diesel Engine Using Several Ultra-Low Sulfur Diesel Fuels

2005 ◽  
Author(s):  
Steven G. Fritz ◽  
John C. Hedrick ◽  
Brian E. Smith
Keyword(s):  
Diesel Fuel ◽  
Motor Vehicle ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Oxides Of Nitrogen ◽  
Test Procedures ◽  
Diesel Fuels ◽  
Ultra Low Sulfur Diesel ◽  
Aromatic Content ◽  
Low Sulfur

This paper documents results from an experimental study performed to determine the effects of several ultra-low sulfur diesel (ULSD) fuels (< 15 ppm S) on exhaust emissions from a 1,500 kW EMD 16-645-E, roots-blown, diesel locomotive engine. U.S. EPA-regulated emission levels of hydrocarbons (HC), carbon monoxide (CO), oxides of nitrogen (NOx), and particulate (PM) were measured using U.S. EPA locomotive test procedures while operating on four ULSD fuels, plus a fifth baseline fuel which was a commercially-available Federal on-highway diesel fuel (< 500 ppm). The four ULSD fuels were (1) a ULSD California motor vehicle diesel fuel (CARB fuel) with an aromatic content of less than 10 percent, (2) a ULSD “equivalent” California motor vehicle diesel fuel with an aromatic content of 24 percent, (3 and 4) two custom blended “2006 ULSD Federal” diesel fuels with relatively low Cetane Numbers and higher aromatic levels. This paper reports the changes observed in the regulated exhaust emission levels between the ULSD CARB diesel fuels and the ULSD Federal diesel fuels.

scholarly journals Tribological Behavior of Near-Frictionless Carbon Coatings in High- and Low- Sulfur Diesel Fuels

2000 ◽  
Author(s):  
M. F. Alzoubi ◽  
O. O. Ajayi ◽  
O. L Eryilmaz ◽  
O. Ozturk ◽  
A. Erdemir ◽  
...  
Keyword(s):  
Tribological Behavior ◽  
Carbon Coatings ◽  
Diesel Fuels ◽  
Low Sulfur

Investigation of Hydrogen Emissions in Partially Premixed Diesel Combustion

2010 ◽  
Vol 132 (11) ◽  
Author(s):  
William F. Northrop ◽  
Lucas M. Vanderpool ◽  
Praveen V. Madathil ◽  
Dennis N. Assanis ◽  
Stanislav V. Bohac
Keyword(s):  
Equilibrium Constant ◽  
Constant Load ◽  
Low Temperature Combustion ◽  
Spark Ignition Engines ◽  
Diesel Fuels ◽  
Wide Range ◽  
Temperature Combustion ◽  
Partially Premixed ◽  
Premixed Low Temperature Combustion ◽  
Low Sulfur

Partially premixed combustion strategies offer many advantages for compression ignition engines. One such advantage for those operating on diesel fuels is the simultaneous reduction in soot and NOx achievable over a wide range of equivalence ratios. Though often not measured in engine experiments, gaseous H2 is a byproduct of incomplete combustion and can be useful for the regeneration of aftertreatment devices. Correlations for the exhaust concentration of H2, mostly derived from experiments with homogeneous spark ignition engines, indicate that it is emitted either in proportion to CO directly or as a function of a pseudowater gas shift equilibrium constant. In this work, H2 is measured over a range of equivalence ratios in a multicylinder diesel engine operating in a partially premixed low temperature combustion (LTC) mode using both low sulfur diesel fuel and soy-based biodiesel. Biodiesel was found to have the same bulk gas emissions of major species including H2 over the range of equivalence ratio in LTC for a constant load and combustion phasing. It also was found that the experimental H2 concentration was near the value predicted by the equilibrium constant for equivalence ratios greater that 0.85 but was increasingly lower for leaner points.

Toward the zero-emission coal-to-liquids plant

TECHNOLOGY ◽  
2015 ◽  
Vol 03 (02n03) ◽  
pp. 147-153
Author(s):  
Harold H. Schobert
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Water Electrolysis ◽  
Carbon Dioxide Production ◽  
Diesel Fuels ◽  
Zero Emission ◽  
Plant Emissions ◽  
Two Stages ◽  
Low Sulfur ◽  
Additional Hydrogen

A novel near-zero-emission process for obtaining clean middle-distillate fuels, primarily from coal and with some algal input, has been developed. This process involves the solvent extraction of coal, followed by two stages of hydrotreating and hydrogenation, and finally distillation, to produce fuels of very low sulfur and low aromatics content. Prototype fuels have been shown to provide performance comparable to petroleum-derived jet and diesel fuels in gas turbine and small diesel engines, as well as in the solid oxide fuel cell. Approaches for reducing plant emissions nearly to zero would begin with obtaining the hydrogen needed for hydrotreating the primary coal liquid extract by water electrolysis with non-carbon electricity. The process heat necessary for the extraction, hydrotreating and distillation steps could be obtained from concentrated solar power or non-carbon electricity. Hydrotreating of the primary coal extract will produce hydrogen sulfide. Use of solar splitting of hydrogen sulfide would prevent any emissions of this pollutant, and at the same time provide the opportunity to recycle hydrogen back into the process and obtain an additional revenue stream from the sale of by-product sulfur. Some carbon dioxide production is likely, and would be inevitable if natural-gas-fired process heaters were used. Carbon dioxide capture in algal photobioreactors is proposed; oils recovered from the algae could be blended with the coal-derived liquids, and spent algae could be gasified to produce additional hydrogen for hydrotreating and hydrogenation.

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