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Fischer Mechanik
No full textzum Gebrauch der Vorlesungen aufgesetzt von Johann Carl FischerRückentitel: Fischer Mechani
[Voluntary Statement by Ronald B. Fischer #1]
No full textVoluntary statement by Ronald B. Fischer as a witness in Dealey Plaza. He states the he was on the corner of Elm Street and Houston Street while the motorcade was coming through. He noticed a man, just before he heard gunshots, in the window on the fifth floor of the Texas School Book Depository building, who seemed to be lying down. He also noted a woman entering the Texas School Book Depository building while everyone else was exiting
Vanadia Promoted Co-AI20 3 Fischer-Tropsch Catalysts
No full textBibliography: leaves 117-124.The primary aim of this work was to study systematically V20 5 promotion on yAI203 supported cobalt-based Fischer-Tropsch catalysts. The y-Ah03 support was modified by addition of varying amounts of vanadia and was subsequently loaded with the same Co content (10 wt-%). The modified supports and catalysts were characterised using conventional characterisation methods. The physio-chemical properties of the vanadia promoted supports and catalysts were characterised using Atomic Adsorption Spectroscopy (AAS), zeta-potential measurements, and BET measurements, X-ray Diffraction (XRD), Temperature Programmed Reduction (TPR), Transmission Electron Microscopy (TEM), and CO chemisorption. Catalyst performance in the Fischer-Tropsch synthesis was tested in fixed bed reactor. A catalysts synthesised from plain y-A1203 was used as a base catalyst. Characterization results show that modification of y-Ab03 support to obtain V205 loadings beyond 1-monolayer vanadia coverage was difficult when using ion exchange. Ion-exchange equilibrium limitations might have caused the poor vanadia loadings beyond 1-monolayer coverage. The supports net surface charge as measured using zeta potential, was decreased by vanadia content in the supports. CO chemisorption results were complex and could only be modelled using dual site Langmuir model assuming the presence of two different sites absorbing CO on the Co-V-AI catalyst system. This made extraction of physical properties from this method rather difficult. Fischer Tropsch synthesis reaction was carried out at typical industrial conditions (T=220°C, P=20 bar (a), H2/CO=2 Xco-60 mol-%) for cobalt catalysts. Vanadia promoted catalysts showed a marked decrease in initial activity. However, the overall deactivation rate was lower with increasing vanadia content. The vanadia content did not affect the chain growth kinetic behavior of the catalyst in the Fischer-Tropsch synthesis hence C5+ selectivity in the Fischer-Tropsch synthesis was unperturbed by vanadia content. Increasing the vanadia content in the catalyst resulted in high n-olefin content and high 1-olefin content. The observed increase in olefin content might be due to the low catalytic activity observed for the catalysts with high vanadia loadings. The most pronounced effect of vanadia promotion on Fischer Tropsch synthesis was in the oxygenate content in the Fischer-Tropsch product. Catalysts with high vanadia loading yielded high amounts of oxygenate products; mainly alcohols and aldehydes
Modeling Fischer Tropsch synthesis in two-phase, continuous, well-mixed slurry reactors
No full textIncludes abstract.Includes bibliographical references (p. 84-87).Fischer Tropsch Synthesis (FTS) is the conversion of syngas (CO and H2) to cleaner liquid transportation fuels. The modelling of such a supercritical, highly non-ideal, multi-component system requires the detailed knowledge of the reaction mechanism, reaction kinetics, phase-equilibrium and reactor technology. The objectives of this work were to: develop a complete Fischer Tropsch model, predict the hydrocarbon product distribution, determine what effect Vapour-Liquid Equilibrium (VLE) has on the product distribution, selectivity and kinetics, and determine whether the deviations from the 'ideal' Anderson-Schulz Flory (ASF) distribution can be attributed to VLE
W. Fischer
No full text"[SX29234]. Sig. W Fischer. Dec 1941 to Sept. 1942 Winnellee."[SX29234]. Signalman W. Fischer. December 1941 to September 1942 Winnellie
[Stammbuch Lukas Fischer] / Luc. Fischer
Full text link[STAMMBUCH LUKAS FISCHER] / LUC. FISCHER
[Stammbuch Lukas Fischer] / Luc. Fischer ( - )
Cover ( - )
Nro. 145. Luc. Fischer. ( - )
Unbekannt; Blatt 1 (1)
Illustration; Blatt 3 (3)
Ostermann, Ulrich; Blatt 5 (5)
Illustration; Blatt 5v (5v)
Schorer, Hieronymus; Blatt 6 (6)
Unbekannt; Blatt 7 (7)
Bräuner, Hans; Blatt 11 (11)
Gritter, Wilhelm; Blatt 12 (12)
Cordoba, Salvador de; Blatt 13 (13)
Schwabengrueber, Johann; Blatt 14 (14)
Händl, Adam; Blatt 15 (15)
Guller, Johann; Blatt 16 (16)
Ochs, Johann; Blatt 17 (17)
François, Guy; Blatt 18 (18)
Händl, Hieronymus; Blatt 19 (19)
Jenisch, Joachim; Blatt 24 (24)
Tourenne, Nicolaus; Blatt 25 (25)
Hotz, Martin; Blatt 26 (26)
Senfftl, Jeremias Albrecht; Blatt 26v (27)
Mangoldt, Hieronymus; Blatt 27 (27)
Illustration mit Anmerkung; Blatt 28 (28)
Präntl, Zacharias; Blatt 29 (29)
Spruch von Dupuy; Blatt 29v (29v)
Mest, Jacob; Blatt 30 (30)
Voith, Lenhard; Blatt 31 (31)
Schenk, Georg; Blatt 34 (34)
Sprüche von Dupuy; Blatt 34v - 35r (35)
Illustration (Gouache): zwei vornehme Venezianerinnen; Blatt 35v (39)
Biller, Johann Baptist; Blatt 40 (40)
Spruch von Dupuy; Blatt 40v (41)
Illustration: (Gouache): Jospeh und das Weib des Potiphar; Blatt 41 (41)
Illustration: Wappen: 1. in Schwarz eine goldene Greifenklaue, rot bewehrt (Kupferstich); Blatt 42 (42)
Illustration: 2. das Wappen der Varnbüler: in Blau zwei goldene Pusikane, schragenweise gekreuzt; Blatt 43 (43)
Illustration: Wappen von Schwatrz und gold geteilt, darin drei (2:1) Reitsporen in verwechselten Farben; Blatt 44 (44
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