| DOTY SCIENTIFIC, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20130034478 | Hydrocarbon and alcohol fuels from variable, renewable energy at very high efficiency - A Renewable Fischer Tropsch Synthesis (RFTS) process is disclosed for producing hydrocarbons and alcohol fuels from wind energy, waste CO | 02-07-2013 |
| 20120012293 | Compact, high-effectiveness, gas-to-gas compound recuperator with liquid intermediary - A liquid-loop compound recuperator is disclosed for high-ε heat exchange between a first shell-side fluid stream and a second shell-side fluid stream of similar thermal capacity rates (W/K). The compound recuperator is comprised of at least two fluid-to-liquid (FL) recuperator modules for transfer of heat from a shell-side fluid, usually a gas, to an intermediary tube-side heat transfer liquid (HTL). Each FL module includes a plurality of thermally isolated, serially connected, adjacent exchanger cores inside a pressure vessel. The cores are rows of finned tubes for cross-flow transfer of heat, and they are arranged in series to effectively achieve counterflow exchange between the HTL and the shell-side stream. The HTL may be water, an organic liquid, a molten alloy, or a molten salt. Alumina-dispersion-strengthened-metal fins, superalloy tubes, and a lead-bismuth-tin alloy HTL may be used for high temperatures. Cumene may be used as the HTL in cryogenic applications. | 01-19-2012 |
| 20110305623 | Hydrocarbon and alcohol fuels from variable, renewable energy at very high efficiency - A Renewable Fischer Tropsch Synthesis (RFTS) process is disclosed for producing hydrocarbons and alcohol fuels from wind energy, waste CO | 12-15-2011 |
| 20100300093 | High-temperature dual-source organic Rankine cycle with gas separations - In a dual-source organic Rankine cycle (DORC), the condensed and slightly sub-cooled working fluid at near ambient temperature (˜300 K) and at low-side pressure (0.1 to 0.7 MPa) is ( | 12-02-2010 |
| 20100280135 | Hydrocarbon and alcohol fuels from variable, renewable energy at very high efficiency - A Renewable Fischer Tropsch Synthesis (RFTS) process produces hydrocarbons and alcohol fuels from wind energy, waste CO2 and water. The process includes (A) electrolyzing water to generate hydrogen and oxygen, (B) generating syngas in a reverse water gas shift (RWGS) reactor, (C) driving the RWGS reaction to the right by condensing water from the RWGS products and separating CO using a CuAlCl4-aromatic complexing method, (D) using a compressor with variable stator nozzles, (E) carrying out the FTS reactions in a high-temperature multi-tubular reactor, (F) separating the FTS products using high-pressure fractional condensation, (G) separating CO2 from product streams for recycling through the RWGS reactor, and (H) using control methods to maintain temperatures of the reactors, electrolyzer, and condensers at optima that are functions of the flow rate. The RFTS process may also include heat engines, a refrigeration cycle utilizing compressed oxygen, and a dual-source organic Rankine cycle. | 11-04-2010 |
| 20100276119 | Compact, high-effectiveness, gas-to-gas compound recuperator with liquid intermediary - A liquid-loop compound recuperator is disclosed for high-ε heat exchange between a first shell-side fluid stream and a second shell-side fluid stream of similar thermal capacity rates (W/K). The compound recuperator is comprised of at least two fluid-to-liquid (FL) recuperator modules for transfer of heat from a shell-side fluid, usually a gas, to an intermediary tube-side heat transfer liquid (HTL). Each FL module includes a plurality of thermally isolated, serially connected, adjacent exchanger cores inside a pressure vessel. The cores are rows of finned tubes for cross-flow transfer of heat, and they are arranged in series to effectively achieve counterflow exchange between the HTL and the shell-side stream. The HTL may be water, an organic liquid, a molten alloy, or a molten salt. | 11-04-2010 |
| 20100026302 | NMR CryoMAS probe for high-field wide-bore magnets - All critical circuit components, including the sample coils, are located along with the spinner assembly in a region that may be evacuated to high vacuum for thermal insulation and high-voltage operation. A hermetically sealed spinner assembly simultaneously satisfies the requirements of hermeticity, low total emissivity, rf compatibility, spinning performance, magnetic compatibility, and high filling factor by utilizing metal construction except for the central region near the rf sample coils. Hence, it is possible to maintain high vacuum in the region external to the MAS spinner assembly even over a broad range of bearing and drive gas temperatures. A bundle of optical fibers is provided for tachometry for spin rates up to 60 kHz. The use of alumina disc capacitors allows the noise contributions from the most critical capacitors to be reduced to a minor fraction of the total and simplifies high voltage operation. | 02-04-2010 |
