The Experts below are selected from a list of 59082 Experts worldwide ranked by ideXlab platform
Pál Halmos - One of the best experts on this subject based on the ideXlab platform.
-
Determination of sulfur content of Diesel Fuels and Diesel fuel-like fractions of waste polymer cracking.
Talanta, 2005Co-Authors: Norbert Miskolczi, L. Bartha, János Borszéki, Pál HalmosAbstract:The element content of low and high sulfur containing Diesel Fuels was measured by different analytical methods: energy-dispersive X-ray fluorescent (EDXRF) and inductively coupled plasma atomic emission (ICP-OES) spectroscopy methods. Then results were compared. High sulfur containing Diesel Fuels were from heavy Diesel engines and Diesel fuel-like liquids obtained by thermal degradation of waste polymers. In case of X-ray analysis also the effect of the used thin foils with different chemical compositions (polypropylene, polycarbonate, polyester) on the accuracy was investigated. According to data considerable differences and deterioration of accuracy was observed in the respect of foils in case of both low and high sulfur containing hydrocarbons. Results indicated appropriate correlation between experimental results measured by both two methods, but differences could be observed in the correlation, which could be explained with different ratio of C/H of samples.
-
Determination of sulfur content of Diesel Fuels and Diesel fuel-like fractions of waste polymer cracking.
Talanta, 2005Co-Authors: Norbert Miskolczi, L. Bartha, János Borszéki, Pál HalmosAbstract:The element content of low and high sulfur containing Diesel Fuels was measured by different analytical methods: energy-dispersive X-ray fluorescent (EDXRF) and inductively coupled plasma atomic emission (ICP-OES) spectroscopy methods. Then results were compared. High sulfur containing Diesel Fuels were from heavy Diesel engines and Diesel fuel-like liquids obtained by thermal degradation of waste polymers. In case of X-ray analysis also the effect of the used thin foils with different chemical compositions (polypropylene, polycarbonate, polyester) on the accuracy was investigated. According to data considerable differences and deterioration of accuracy was observed in the respect of foils in case of both low and high sulfur containing hydrocarbons. Results indicated appropriate correlation between experimental results measured by both two methods, but differences could be observed in the correlation, which could be explained with different ratio of C/H of samples.
Norbert Miskolczi - One of the best experts on this subject based on the ideXlab platform.
-
Determination of sulfur content of Diesel Fuels and Diesel fuel-like fractions of waste polymer cracking.
Talanta, 2005Co-Authors: Norbert Miskolczi, L. Bartha, János Borszéki, Pál HalmosAbstract:The element content of low and high sulfur containing Diesel Fuels was measured by different analytical methods: energy-dispersive X-ray fluorescent (EDXRF) and inductively coupled plasma atomic emission (ICP-OES) spectroscopy methods. Then results were compared. High sulfur containing Diesel Fuels were from heavy Diesel engines and Diesel fuel-like liquids obtained by thermal degradation of waste polymers. In case of X-ray analysis also the effect of the used thin foils with different chemical compositions (polypropylene, polycarbonate, polyester) on the accuracy was investigated. According to data considerable differences and deterioration of accuracy was observed in the respect of foils in case of both low and high sulfur containing hydrocarbons. Results indicated appropriate correlation between experimental results measured by both two methods, but differences could be observed in the correlation, which could be explained with different ratio of C/H of samples.
-
Determination of sulfur content of Diesel Fuels and Diesel fuel-like fractions of waste polymer cracking.
Talanta, 2005Co-Authors: Norbert Miskolczi, L. Bartha, János Borszéki, Pál HalmosAbstract:The element content of low and high sulfur containing Diesel Fuels was measured by different analytical methods: energy-dispersive X-ray fluorescent (EDXRF) and inductively coupled plasma atomic emission (ICP-OES) spectroscopy methods. Then results were compared. High sulfur containing Diesel Fuels were from heavy Diesel engines and Diesel fuel-like liquids obtained by thermal degradation of waste polymers. In case of X-ray analysis also the effect of the used thin foils with different chemical compositions (polypropylene, polycarbonate, polyester) on the accuracy was investigated. According to data considerable differences and deterioration of accuracy was observed in the respect of foils in case of both low and high sulfur containing hydrocarbons. Results indicated appropriate correlation between experimental results measured by both two methods, but differences could be observed in the correlation, which could be explained with different ratio of C/H of samples.
Ram Prasad - One of the best experts on this subject based on the ideXlab platform.
-
TRIGLYCERIDES-BASED Diesel Fuels
Renewable & Sustainable Energy Reviews, 2000Co-Authors: Anjana Srivastava, Ram PrasadAbstract:Efforts are under way in many countries, including India, to search for suitable alternative Diesel Fuels that are environment friendly. The need to search for these Fuels arises mainly from the standpoint of preserving the global environment and the concern about long-term supplies of conventional hydrocarbon-based Diesel Fuels. Among the different possible sources, Diesel Fuels derived from triglycerides (vegetable oils/animal fats) present a promising alternative to substitute Diesel Fuels. Although triglycerides can fuel Diesel engines, their high viscosities, low volatilities and poor cold flow properties have led to the investigation of various derivatives. Fatty acid methyl esters, known as bioDiesel, derived from triglycerides by transesterification with methanol have received the most attention. The main advantages of using bioDiesel are its renewability, better-quality exhaust gas emissions, its biodegradability and given that all the organic carbon present is photosynthetic in origin, it does not contribute to a rise in the level of carbon dioxide in the atmosphere and consequently to the greenhouse effect.
Marvin O. Bagby - One of the best experts on this subject based on the ideXlab platform.
-
improving the low temperature properties of alternative Diesel Fuels vegetable oil derived methyl esters
Journal of the American Oil Chemists' Society, 1996Co-Authors: Robert O. Dunn, Michael W Shockley, Marvin O. BagbyAbstract:This work explores near-term approaches for improving the low-temperature properties of triglyceride oil-derived Fuels for direct-injection compression-ignition (Diesel) engines. Methyl esters from transesterified soybean oil were evaluated as a neat fuel and in blends with petroleum middle distillates. Winterization showed that the cloud point (CP) of methyl soyate may be reduced to −16°C. Twelve cold-flow additives marketed for distillates were tested by standard petroleum methodologies, including CP, pour point (PP), kinematic viscosity, cold filter plugging point (CFPP), and low-temperature flow test (LTFT). Results showed that additive treatment significantly improves the PP of distillate/methyl ester blends; however, additives do not greatly affect CP or viscosity. Both CFPP and LTFT were nearly linear functions of CP, a result that compares well with earlier studies with untreated distillate/methyl ester blends. In particular, additives proved capable of reducing LTFT of neart methyl esters by 5–6°C. This work supports earlier research on the low-temperature properties; that is, approaches for improving the cold flow of methyl ester-based Diesel Fuels should continue to focus on reducing CP.
-
Low-temperature properties of triglyceride-based Diesel Fuels: Transesterified methyl esters and petroleum middle distillate/ester blends
Journal of the American Oil Chemists’ Society, 1995Co-Authors: R.o. Dunn, Marvin O. BagbyAbstract:This work examines low-temperature properties of triglyceride-based alternate Fuels for direct-injection compression-ignition engines. Methyl esters from transesterified soybean oil were studied as neat Fuels and in blends with petroleum middle distillates (No. 1 or No. 2 Diesel fuel). Admixed methyl esters composed of 5–30 vol% tallowate methyl esters in soyate methyl esters were also examined. Pour points, cloud points, and kinematic viscosities were measured; viscosities at cooler temperatures were studied to evaluate effects of sustained exposure. Low-temperature filterability studies were conducted in accordance with two standard methodologies. The North American standard was the low-temperature flow test (LTFT), and its European equivalent was the cold-filter plugging point (CFPP). With respect to cold-flow properties, blending methyl esters with middle distillates is limited to relatively low ester contents before the properties become preclusive. Under most conditions, cold-flow properties were not greatly affected by admixing the methyl esters with up to 30 vol% tallowate (before blending). Least squares analysis showed that both LTFT and CFPP of formulations containing at least 10 vol% methyl esters are linear functions of cloud point. In addition, statistical analysis of the LTFT data showed a strong 1:1 correlation between LTFT and CP. This result may prove crucial in efforts to improve low-temperature flow properties of alternate Diesel Fuels that contain methyl esters derived from triglycerides.
-
low temperature properties of triglyceride based Diesel Fuels transesterified methyl esters and petroleum middle distillate ester blends
Journal of the American Oil Chemists' Society, 1995Co-Authors: R.o. Dunn, Marvin O. BagbyAbstract:This work examines low-temperature properties of triglyceride-based alternate Fuels for direct-injection compression-ignition engines. Methyl esters from transesterified soybean oil were studied as neat Fuels and in blends with petroleum middle distillates (No. 1 or No. 2 Diesel fuel). Admixed methyl esters composed of 5–30 vol% tallowate methyl esters in soyate methyl esters were also examined. Pour points, cloud points, and kinematic viscosities were measured; viscosities at cooler temperatures were studied to evaluate effects of sustained exposure. Low-temperature filterability studies were conducted in accordance with two standard methodologies. The North American standard was the low-temperature flow test (LTFT), and its European equivalent was the cold-filter plugging point (CFPP). With respect to cold-flow properties, blending methyl esters with middle distillates is limited to relatively low ester contents before the properties become preclusive. Under most conditions, cold-flow properties were not greatly affected by admixing the methyl esters with up to 30 vol% tallowate (before blending). Least squares analysis showed that both LTFT and CFPP of formulations containing at least 10 vol% methyl esters are linear functions of cloud point. In addition, statistical analysis of the LTFT data showed a strong 1:1 correlation between LTFT and CP. This result may prove crucial in efforts to improve low-temperature flow properties of alternate Diesel Fuels that contain methyl esters derived from triglycerides.
János Borszéki - One of the best experts on this subject based on the ideXlab platform.
-
Determination of sulfur content of Diesel Fuels and Diesel fuel-like fractions of waste polymer cracking.
Talanta, 2005Co-Authors: Norbert Miskolczi, L. Bartha, János Borszéki, Pál HalmosAbstract:The element content of low and high sulfur containing Diesel Fuels was measured by different analytical methods: energy-dispersive X-ray fluorescent (EDXRF) and inductively coupled plasma atomic emission (ICP-OES) spectroscopy methods. Then results were compared. High sulfur containing Diesel Fuels were from heavy Diesel engines and Diesel fuel-like liquids obtained by thermal degradation of waste polymers. In case of X-ray analysis also the effect of the used thin foils with different chemical compositions (polypropylene, polycarbonate, polyester) on the accuracy was investigated. According to data considerable differences and deterioration of accuracy was observed in the respect of foils in case of both low and high sulfur containing hydrocarbons. Results indicated appropriate correlation between experimental results measured by both two methods, but differences could be observed in the correlation, which could be explained with different ratio of C/H of samples.
-
Determination of sulfur content of Diesel Fuels and Diesel fuel-like fractions of waste polymer cracking.
Talanta, 2005Co-Authors: Norbert Miskolczi, L. Bartha, János Borszéki, Pál HalmosAbstract:The element content of low and high sulfur containing Diesel Fuels was measured by different analytical methods: energy-dispersive X-ray fluorescent (EDXRF) and inductively coupled plasma atomic emission (ICP-OES) spectroscopy methods. Then results were compared. High sulfur containing Diesel Fuels were from heavy Diesel engines and Diesel fuel-like liquids obtained by thermal degradation of waste polymers. In case of X-ray analysis also the effect of the used thin foils with different chemical compositions (polypropylene, polycarbonate, polyester) on the accuracy was investigated. According to data considerable differences and deterioration of accuracy was observed in the respect of foils in case of both low and high sulfur containing hydrocarbons. Results indicated appropriate correlation between experimental results measured by both two methods, but differences could be observed in the correlation, which could be explained with different ratio of C/H of samples.