scholarly journals Thermal Stability Testing of a Fischer-Tropsch Fuel and Various Blends with Jet A

2011 ◽  
Author(s):  
Jennifer Klettlinger ◽  
Chia Yen
Keyword(s):  
Thermal Stability ◽  
Stability Testing ◽  
Fischer Tropsch

scholarly journals Innovative Test Rig for Jet Fuels Thermal Stability Testing / Innowacyjne Stanowisko Badawcze Do Określania Stabilności Termicznej Paliw Lotniczych

2014 ◽  
Vol 29 (1) ◽  
pp. 15-22
Author(s):  
Jarosław Sarnecki
Keyword(s):  
Thermal Stability ◽  
Laboratory Test ◽  
Thermal Conditions ◽  
Standard Test ◽  
Test Method ◽  
Jet Fuels ◽  
Stability Testing ◽  
Test Rig ◽  
Standard Test Method ◽  
Laboratory Test Method

Abstract The article deals with laboratory test method for jet fuels thermal stability testing. Author described the reasons that led to test rig preparation, its construction and operation principles. Innovative test rig for jet fuels thermal stability testing enables research in wide thermal conditions and different pressures. Testing capabilities and advantages compared with currently used standard test method of jet fuels thermal stability testing according to ASTM D3241 have been also presented

Unstable Thermal Modes in Fischer-Tropsch Reactors With Fixed Pelletized Catalytic Bed

2010 ◽  
Author(s):  
I. V. Derevich ◽  
V. S. Ermolaev ◽  
V. Z. Mordkovich
Keyword(s):  
Thermal Stability ◽  
Heat Release ◽  
Synthesis Gas ◽  
Internal Heat ◽  
Diffusion Resistance ◽  
Oscillation Regime ◽  
Fischer Tropsch ◽  
Gas Concentration ◽  
Gas Consumption ◽  
Small Disturbances

Investigation of oscillation of temperature and synthesis gas concentration inside spherical catalytic particle it is executed. Approximate distributions of temperature and concentrations in a particle with internal heat release and synthesis gas consumption are obtained. Stationary distributions of thermal and gaseous parameters are found. In the frame of small disturbances of temperature and concentrations thermal stability is investigated. It is revealed, that diffusion resistance synthesis gas inside a porous particle can lead to occurrence oscillation regime.

Thermal stability and hcp–fcc allotropic transformation in supported Co metal catalysts probed near operando by ferromagnetic NMR

2015 ◽  
Vol 17 (22) ◽  
pp. 14598-14604 ◽  
Author(s):  
Andrey S. Andreev ◽  
Jean-Baptiste d'Espinose de Lacaillerie ◽  
Olga B. Lapina ◽  
Alexander Gerashenko
Keyword(s):  
Thermal Stability ◽  
Metallic Phase ◽  
Metal Catalysts ◽  
Allotropic Transformation ◽  
Fischer Tropsch

Ferromagnetic NMR reveals which cobalt metallic phase is actually at work in Fischer–Tropsch catalysts and what is its state of dispersion under operando conditions.

scholarly journals Effect of Aromatic Concentration of a Fischer-Tropsch Fuel on Thermal Stability

2012 ◽  
Author(s):  
Jennifer Lindsey Suder Klettlinger
Keyword(s):  
Thermal Stability ◽  
Thermal Oxidation ◽  
Break Point ◽  
Jet Fuel ◽  
Fuel Composition ◽  
Fischer Tropsch ◽  
Commercial Grade ◽  
Testing Method ◽  
Aromatic Content ◽  
Thermal Stability Of

Fischer-Tropsch (F-T) jet fuel composition differs from petroleum-based, conventional commercial jet fuel because of differences in feedstock and production methodology. Fischer-Tropsch fuel typically has a lower aromatic and sulfur content and consists primarily of iso and normal parafins. The ASTM D3241 specification for Jet Fuel Thermal Oxidation Test (JFTOT) break point testing method was used to test the breakpoint of a baseline commercial grade F-T jet fuel, and various blends of this F-T fuel with an aromatic solution. The goal of this research is to determine the effect of aromatic content on the thermal stability of Fischer-Tropsch fuel. The testing completed in this report was supported by the NASA Fundamental Aeronautics Subsonics Fixed Wing Project.

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