Fischer–Tropsch synthesis in microchannels - …
Klerk, A. Can Fischer-Tropsch syncrude be refined to on-specification diesel fuel? Energy Fuel 2009, 23:4593–4604.
Microchannel Reactor for Fischer Tropsch Synthesis ..
Sauciuc, A, Abosteif, Z, Weber, G, Potetz, A, Rauch, R, Hofbauer, H, Schaub, G, Dumitrescu, L. Influence of operating conditions on the performance of biomass‐based Fischer–Tropsch synthesis. Biomass Conver Bioref. 2012, 2:253–263. doi: .
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Fischer, F, Tropsch, H. Über die Herstellung synthetischer Ölgemische (syn-thol) durch Aufbau aus Kohlenoxyd und Wasserstoff.. Brennst. Chem 1923, 4:276–285.
Fischer–Tropsch synthesis in microchannels
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Davis Fischer-Tropsch Synthesis: Impact of Ammonia on Alumina- and Silica-Supported Cobalt Catalysts Activity Venkat Ramana Rao Pendyala, Gary Jacobs, Wenping Ma, and Burtron H.
Schablitzky, H, Lichtscheidl, J, Rauch, R, Hofbauer, H. Investigations on hydrotreating of Fischer Tropsch‐biowaxes for generation of bio‐products from lignocellulosic biomass. Modern Appl Sci 2012, 6.
Fischer–Tropsch process - Wikipedia
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Computational fluid dynamic (CFD) simulation of heat transfer in a microchannel reactor block for low temperature Fischer–Tropsch (FT) synthesis was considered. Heat generation profiles for different operating conditions (GHSV 5000 h–1; catalyst loading 60%–120%, where 100% loading equals 1060 kg/m3 of cobalt based catalyst from Oxford Catalyst Ltd.) were obtained from a single channel model. Simulations on a reactor block quantified the effects of three coolant types: cooling oil (Merlotherm SH), subcooled water and saturated water, on reactor temperature, and also evaluated the effect of wall boiling conditions. At process conditions of GHSV 5000 h–1 and catalyst loading of 120%, predicted temperature gradients along channel length were 32, 17 and 12 K for cooling oil, subcooled water and saturated water, respectively. A modified reactor block showed improved thermal performance as well as heat transfer enhancement due to wall boiling conditions.
Davis Principles of Olefin Selectivity in Fischer-Tropsch Synthesis on Iron and Cobalt Catalysts Hans Schulz Fischer-Tropsch Synthesis: Effect of CO Conversion on Product Selectivities during Deactivation or by Changing Space Velocity at Stable Conditions over Unpromoted and Ru-Promoted 25%Co/Al2O3 Catalysts Wenping Ma, Uschi M.
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Fischer-Tropsch Plant Design - COSTELLO
SCALE-UP OF MICROCHANNEL REACTORS FOR FISCHER-TROPSCH
The viability of the use of structured supports for the Fischer–Tropsch synthesis has been evidenced in this study.
(210b) Microchannel Fischer-Tropsch for Waste-to …
These structured catalysts have been tested in the Fischer–Tropsch synthesis ..
Fischer-Tropsch Synthesis: - Internetchemie
These are used for high-temperature Fischer–Tropsch synthesis (nearly 340 °C) ..
Fischer-Tropsch Synthesis in a Microchannel Reactor: …
Synthesis gas from biomass can be produced and utilized in different ways. Conversion of biomass to synthesis gas can be done either in fluidized bed or entrained flow reactors. As gasification agent oxygen, steam, or mixtures are used. The most common use of biomass gasification in the last decades has been for heat and/or power production. Nowadays, the importance of transportation fuels from renewables is increased due to environmental aspects and growing fossil fuels prices. That is why the production of Fischer–Tropsch (FT) liquids, methanol, mixed alcohols, substitute natural gas (SNG), and hydrogen from biomass is now in focus of view. The most innovative and interesting ways of synthesis gas utilization and projects, BioTfueL or GoBiGas, BioLiq, Choren, etc. are discussed here. Further the microchannel technology by Oxford Catalysts and distributed production of SNG in decentral small scale are presented. The synthesis platform in Güssing, Austria is also presented. The FT liquids, hydrogen production, mixed alcohols, and BioSNG, these are the projects associated with the FICFB gasification plant in Güssing. Also the principle and examples of sorption‐enhanced reforming to adjust H2/CO ratio in product gas during the gasification is described. Finally, in the conclusion also an outlook for the thermochemical pathway to transportation fuels is given. WIREs Energy Environ 2014, 3:343–362. doi: 10.1002/wene.97
Catalyst structure and method of Fischer-Tropsch synthesis
Tijmensen, MJA, Faaij, APC, Hamelinck, CN, Hardeveld, MRM. Exploration of the possibilities for production of Fischer Tropsch liquids and power via biomass gasification. Biomass Bioenergy 2002, 23:129–152.
Velocys Fischer-Tropsch Technology - Oxford Catalysts …
Microchannel reactors (MCRs) exemplify significant miniaturization of the physical dimensions and process intensification when compared with conventional industrial reactors, allowing for linear scaleup, flexible manipulations, and substantial capital cost reductions. MCRs have promising applications in Gas-to-Liquid (GTL) technologies, such as the Fischer-Tropsch (F-T) synthesis, particularly for monetizing small onshore and offshore gas fields, which is economically unfeasible with other conventional industrial F-T technologies. Even though MCRs were proposed for commercial implementations and demonstration plans have already been built, adequate literature publications on the use of MCRs in F-T synthesis is scanty and to the best of our knowledge many details concerning the hydrodynamics, mass transfer, heat transfer, and reactor performance are not available.
The overall objective of this study is to investigate the performance and the flow distribution of a MCR, using one-dimensional (1-D) and Computational Fluid Dynamics (CFD) models. A MCR consisting of 50 channels, each packed with 100-micron cobalt catalyst, operating under the low temperature F-T synthesis (500 K and 25 bar) was used to study the reactor performance. The inlet flow distribution was investigated using another CFD model with air at 298 K and 1.01325 bar. A 50-channel MCR was used in this investigation. The modeling results led to the following conclusions:
1. The 1-D model systematically predicted steeper hydrocarbon flow rate profiles when compared with those of the CFD model, however, both models converge to the same values at the channel outlet.
2. For one channel of the MCR, both the 1-D and CFD models indicated that increasing the H2/CO ratio in the feed increased CO conversion, C5+ yield, pressure drop, F-T reaction rate, and the heat transfer requirements. Increasing the inlet syngas velocity decreased CO conversion and increased the pressure drop. Also, increasing temperature, increased the F-T reaction rate, CO conversion and the C5+ yield, and decreased the pressure drop. Furthermore, under the conditions investigated, the F-T process in the MCR used was kinetically-controlled.
3. The CFD model used to investigate the flow distribution in the MCR showed that using a flow distributor resulted in a homogenous flow distribution and eliminated the strong gas recirculation.
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