Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.

Abstract: Disclosed herein are embodiments of a rotary gas separation device, such as a rotary pressure swing adsorption device. The rotary pressure swing device can include, for example, a rotor with a plurality of adsorber elements, a stator with a plurality of conduits, and a rotary valve comprising a seal assembly positioned between the rotor and the stator.

Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.

Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.

Abstract: Disclosed herein are embodiments of a rotary gas separation device, such as a rotary pressure swing adsorption device. The rotary pressure swing device can include, for example, a rotor with a plurality of adsorber elements, a stator with a plurality of conduits, and a rotary valve comprising a seal assembly positioned between the rotor and the stator.

Abstract: Disclosed herein are embodiments of a rotary gas separation device, such as a rotary pressure swing adsorption device. The rotary pressure swing device can include, for example, a rotor with a plurality of adsorber elements, a stator with a plurality of conduits, and a rotary valve comprising a seal assembly positioned between the rotor and the stator.

Abstract: Embodiments of a rapid cycle PSA apparatus are described that are useful for producing a hydrogen enriched product gas comprising not more than about 50 ppm carbon monoxide by volume and with a hydrogen gas recovery of at least about 70% by adsorptive separation from a syngas feed gas mixture comprising at least about 50 percent hydrogen and at least about 1 percent carbon monoxide by volume. One disclosed embodiment of a rapid cycle PSA apparatus comprised at least 3 adsorber elements each having at least one thin adsorbent sheet material which comprises at least one adsorbent material therein, and a bed size factor less than about 4.0 seconds. Embodiments of a rapid cycle PSA process also are described that utilize disclosed embodiments of the rapid-cycle PSA device.

Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.

Abstract: Improved adsorbent sheet based parallel passage adsorbent structures for enhancing the kinetic selectivity of certain kinetic-controlled adsorption processes, such as PSA, TSA and PPSA processes, and combinations thereof, are provided. The enhancements in kinetic selectivity made possible through the implementation of the present inventive improved adsorbent structures may unexpectedly enable significant intensification of selected kinetic adsorption processes relative to attainable performance with conventional adsorbent materials in beaded or extruded form. Such process intensification enabled by the present inventive adsorbent structures may provide for increased adsorption cycle frequencies, and increased gas flow velocities within the adsorbent beds, which may increase the productivity and/or recovery of a kinetic adsorption system incorporating the inventive adsorbent structures.

Abstract: Embodiments of a rapid cycle PSA apparatus are described that are useful for producing a hydrogen enriched product gas comprising not more than about 50 ppm carbon monoxide by volume and with a hydrogen gas recovery of at least about 70% by adsorptive separation from a syngas feed gas mixture comprising at least about 50 percent hydrogen and at least about 1 percent carbon monoxide by volume. One disclosed embodiment of a rapid cycle PSA apparatus comprised at least 3 adsorber elements each having at least one thin adsorbent sheet material which comprises at least one adsorbent material therein, and a bed size factor less than about 4.0 seconds. Embodiments of a rapid cycle PSA process also are described that utilize disclosed embodiments of the rapid-cycle PSA device.

Abstract: A method and system for adsorptive separation of a feed gas mixture provides for increased system efficiency and product recovery. The requirement for purge gas streams consuming desired product gas to regenerate adsorption beds is reduced through an inventive method for adsorbent selection and adsorption bed and process design.

Abstract: Improved adsorbent sheet based parallel passage adsorbent structures for enhancing the kinetic selectivity of certain kinetic-controlled adsorption processes, such as PSA, TSA and PPSA processes, and combinations thereof, are provided. The enhancements in kinetic selectivity made possible through the implementation of the present inventive improved adsorbent structures may unexpectedly enable significant intensification of selected kinetic adsorption processes relative to attainable performance with conventional adsorbent materials in beaded or extruded form. Such process intensification enabled by the present inventive adsorbent structures may provide for increased adsorption cycle frequencies, and increased gas flow velocities within the adsorbent beds, which may increase the productivity and/or recovery of a kinetic adsorption system incorporating the inventive adsorbent structures.

Abstract: An improved adsorbent material is provided which is adsorptively selective for carbon monoxide and/or unsaturated hydrocarbon gases in the presence of other gas components. In an exemplary embodiment, the improved adsorbent provides a desirably large adsorptive working capacity for carbon monoxide and/or unsaturated hydrocarbons at elevated partial pressures of such gases, such as above about 0.2 bar. Such improved adsorbent is particularly suited for intensive cyclic adsorption separation processes, to selectively adsorb and desorb carbon monoxide and/or unsaturated hydrocarbons, having an adsorptive working capacity of at least about 0.6 mmol/g·bar at partial pressures above about 0.2 bar, as measured for adsorption of carbon monoxide at about 70° C.

Abstract: A method and system for adsorptive separation of a feed gas mixture provides for increased system efficiency and product recovery. The requirement for purge gas streams consuming desired product gas to regenerate adsorption beds is reduced through an inventive method for adsorbent selection and adsorption bed and process design.

Abstract: High density adsorbent structures may be constructed in parallel passage contactor configurations using improved high density adsorbent sheets. Improved high density adsorbent sheets may be formed using adsorptively active support or substrate materials upon which adsorbent material is applied, such as by coating processes, so that in the resulting high density adsorbent structure both the substrate and the coated adsorbent material are active in adsorption processes. Alternatively, improved high density adsorbent sheets may be formed comprising precursor materials, such as certain clays, which may be coated onto known support materials and thereafter converted to active adsorbent materials using known conversion techniques. This produces high-density adsorbent sheets comprising adsorbent material without inert binder material fractions. Improved self-supporting adsorbent sheets also may be formed without using support material, resulting in higher adsorbent densities relative to known adsorbent sheets.