Cobalt-doped molecular sieve for efficient degradation of polypropylene into fuel oil: Kinetics and fuel properties of the oil

The present paper deals with the influence of fuel properties on the spray behaviour. This influence was studiedexperimentally using a common rail injection system from a medium speed diesel engine. The experiments have been performed with diesel fuel (EN-590) and heavy fuel oil (RMG 180) on a constant volume chamber at room temperature. Comparison of the spray characteristics shows that the heavy fuel oil penetrates deeper in the chamber. However, the diesel spray has a bigger cone angle. These results formed the basis for a further development of the 1D-model [1] to predict the spray penetration by considering the fuel properties and temperature.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4787

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Pyrolytic Waste Plastic Oil and Its Diesel Blend: Fuel Characterization

Journal of Environmental and Public Health ◽

10.1155/2016/7869080 ◽

2016 ◽

Vol 2016 ◽

pp. 1-6 ◽

Cited By ~ 29

Author(s):

M. Z. H. Khan ◽

M. Sultana ◽

M. R. Al-Mamun ◽

M. R. Hasan

Keyword(s):

Calorific Value ◽

Fuel Properties ◽

Fuel Oil ◽

Pyrolysis Oil ◽

Gaseous Hydrocarbon ◽

Waste Plastic ◽

Waste Plastic Oil ◽

Fuel Characterization ◽

Laboratory Reactor ◽

Blend Fuel

The authors introduced waste plastic pyrolysis oil (WPPO) as an alternative fuel characterized in detail and compared with conventional diesel. High density polyethylene, HDPE, was pyrolyzed in a self-designed stainless steel laboratory reactor to produce useful fuel products. HDPE waste was completely pyrolyzed at 330–490°C for 2-3 hours to obtain solid residue, liquid fuel oil, and flammable gaseous hydrocarbon products. Comparison of the fuel properties to the petrodiesel fuel standards ASTM D 975 and EN 590 revealed that the synthetic product was within all specifications. Notably, the fuel properties included a kinematic viscosity (40°C) of 1.98 cSt, density of 0.75 gm/cc, sulphur content of 0.25 (wt%), and carbon residue of 0.5 (wt%), and high calorific value represented significant enhancements over those of conventional petroleum diesel fuel.

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Fuel Oil In-Line Sampling Analysis

Volume 5: Turbo Expo 2005 ◽

10.1115/gt2005-68940 ◽

2005 ◽

Author(s):

Lucio A. Salvucci ◽

Timothy C. Donnelly ◽

Michael A. White

Keyword(s):

Real Time ◽

Gas Turbine ◽

Gas Turbines ◽

Free Water ◽

Sediment Contamination ◽

Fuel Properties ◽

Fuel Oil ◽

Fuel Quality ◽

Sampling Point ◽

The U.S

The U.S. Navy is pursuing endeavors in support of propulsion gas turbines in terms of in-line fuel oil quality. Using a prototype laser technology, developed under the sponsorship of the Small Business Innovative Research Program that monitors the concentration of sediment and free water in JP-5 in real-time, the U.S. Navy is proceeding to expand it’s capabilities to monitor sediment and free water in Naval Distillate, NATO Code F-76, under flow conditions. The maximum fuel quality limitations for the U.S. Navy propulsion gas turbines are 40 parts per million (PPM) free water and 2.64 milligrams per liter (mg/liter) sediment contamination. The current prototype unit, being tested in aviation fuel (JP-5) systems, is capable of monitoring fuel quality within these systems where the maximum fuel quality limitations are 5 PPM free water and 2.0 mg/liter per liter sediment contamination. Current naval shipboard policy for gas turbine propelled hulls requires fuel quality testing at the discharge of the fuel oil service system filter separator discharge, which is the last sampling point prior to admittance into the gas turbine module. Incorporating this technology in unison with monitoring capabilities will eliminate the subjective and laborious laboratory sample testing presently conducted, reducing workload and provide Ship’s Force with real-time quality assurance data. Future enhancement of this technology is being initiated to develop the capability to analyze other potential fuel properties, such as specific gravity, in addition to sediment contaminant size distribution measurement. This will provide Ship’s Force with real-time data that can be used to detect off-specification fuel properties or on-board filtration equipment problems sooner than present. This can aid in more effective shipboard fuel quality control and prove essential in the selection of filtration systems aboard U.S. Naval vessels.

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Fluidized Catalytic Cracking Catalyst Microstructure as Determined by A Scanning Ion Microprobe

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100135113 ◽

1990 ◽

Vol 48 (2) ◽

pp. 302-303

Author(s):

J.K. Lampert ◽

G.S. Koermer ◽

J.M. Macaoy ◽

J.M. Chabala ◽

R. Levi-Setti

Keyword(s):

Catalytic Cracking ◽

Secondary Ion Mass Spectrometry ◽

Fuel Oil ◽

Ion Microprobe ◽

Fluidized Catalytic Cracking ◽

Ion Probe ◽

Silica Alumina ◽

Resolution Imaging ◽

The University ◽

High Spatial Resolution Imaging

We have used high spatial resolution imaging secondary ion mass spectrometry (SIMS) to differentiate mineralogical phases and to investigate chemical segregations in fluidized catalytic cracking (FCC) catalyst particles. The oil industry relies on heterogeneous catalysis using these catalysts to convert heavy hydrocarbon fractions into high quality gasoline and fuel oil components. Catalyst performance is strongly influenced by catalyst microstructure and composition, with different chemical reactions occurring at specific types of sites within the particle. The zeolitic portions of the particle, where the majority of the oil conversion occurs, can be clearly distinguished from the surrounding silica-alumina matrix in analytical SIMS images.The University of Chicago scanning ion microprobe (SIM) employed in this study has been described previously. For these analyses, the instrument was operated with a 40 keV, 10 pA Ga+ primary ion probe focused to a 30 nm FWHM spot. Elemental SIMS maps were obtained from 10×10 μm2 areas in times not exceeding 524s.

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Polymorphic phase transition of a membrane protein - analysis of continuous diffuse electron diffraction intensity

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100142451 ◽

1986 ◽

Vol 44 ◽

pp. 166-167

Author(s):

Douglas L. Dorset ◽

Andrew K. Massalski

Keyword(s):

Molecular Sieve ◽

Three Dimensional ◽

Pore Geometry ◽

Two Dimensional ◽

Diffraction Intensity ◽

Polymorphic Phase Transition ◽

E Coli ◽

Crystallographic Study ◽

Hexagonal Form ◽

Polymorphic Forms

Matrix porin, the ompF gene product of E. coli, has been the object of a electron crystallographic study of its pore geometry in an attempt to understand its function as a membrane molecular sieve. Three polymorphic forms have been found for two-dimensional crystals reconstituted in phospholipid, two hexagonal forms with different lipid content and an orthorhombic form coexisting with and similar to the hexagonal form found after lipid loss. In projection these have been shown to retain the same three-fold pore triplet geometry and analyses of three-dimensional data reveal that the small hexagonal and orthorhombic polymorphs have similar structure as well as unit cell spacings.

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Fibrillin molecules aggregate to form an extendible beaded structure which is a major component of “Elastin Associated” microfibrils

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100153208 ◽

1989 ◽

Vol 47 ◽

pp. 246-247

Author(s):

Douglas R. Keene ◽

B. Kerry Maddox ◽

Marie B. Spurgin ◽

Lynn Y. Sakai ◽

Robert W. Glanville

Keyword(s):

Molecular Sieve ◽

Room Temperature ◽

Culture Medium ◽

Weight Fraction ◽

Ammonium Bicarbonate ◽

High Molecular Weight Fraction ◽

Bicarbonate Buffer ◽

Human Amnion ◽

Gold Conjugate ◽

Ammonium Bicarbonate Buffer

A mouse monoclonal antibody was used to identify beaded aggregates found in guanidine extracts of human amnion as assemblies of fibrillin molecules. These aggregates were also shown to be a major component of extracellular matrix microfibrils. We further demonstrated that the periodicity of these aggregates can be increased when subjected to mechanical stress.Human amnion was extracted with guanidine and the extracted material purified using ion exchange and molecular sieve chromatography. A high molecular weight fraction was precipitated by dialyzing against dilute acetic acid. Part of the precipitate was suspended in 0.2 M ammonium bicarbonate buffer and rotary shadowed. A second portion was resuspended in culture medium containing antibody which recognizes matrix microfibrils, diluted 1:5 in ammonium bicarbonate and reacted for 120 minutes at room temperature. Antibody labeled precipitate was washed by repeated pelleting and resuspension in buffer and then incubated in Janssen GAM 5 nm gold conjugate for 60 minutes at room temperature.

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