摘要:
An improved process for the vapor phase fluorination, especially fluorination of 1,1,1-trifluoro-2-chloroethane (CFC-133a) with HF to produce 1,1,1,2-tetrafluoroethane (HFC-134a) employs a catalyst which preferably consists essentially of boehmite and Cr(OH)Cl.sub.2.2H.sub.2 O, combined and extruded to form particulates and then heated in nitrogen.
摘要:
Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent. The deliverable volume of natural gas from a vessel packed with carbon molecular sieve particles is increased by impregnating a polymer precursor of the carbon molecular sieve with additional monomers and polymerizing the monomers before carbonizing the precursor.
摘要:
An anode structure comprises an array of carbon nanotubes having a diffusion side and a membrane side, and catalyst particles interspersed on inner surfaces of the membrane side of the carbon nanotubes. The carbon nanotubes have an average diameter greater than the size of the hydrogen molecule but smaller than the size of the carbon monoxide molecule. Thus, hydrogen flowing toward the catalyst particles interspersed inside the carbon nanotubes are able to go through, while the flow of trace amounts of carbon monoxide contained in the hydrogen is blocked, preventing the poisoning of the catalyst particles by the carbon monoxide. A fuel cell utilizing the anode structure and a method for manufacturing the anode structure are also disclosed.
摘要:
A vehicle body includes a first door member and an opening/closing mechanism. The first door member can rotate between a first position in which it covers the part of a opening of a storage section and a second position in which it opens the part of the opening. The opening/closing mechanism that rotates the first door member includes a rotation shaft that supports the first door member. The rotation shaft is disposed at a position in which the first door member does not come out from a rotation area overlapping the first door member that is in the first position vertically when the first door member rotates. The opening/closing mechanism moves the first door member up to a third position in which the first door member does not interfere with a vehicle main body when the first door member rotates between the first position and the second position.
摘要:
Methods of manufacturing insulated wires are provided. In an embodiment, by way of example only, a method includes drawing a conductive wire through a first pad to apply a layer of a first slurry onto the conductive wire, the first pad comprising a chamois leather material and including the first slurry disposed on the chamois leather material, wherein the first slurry comprises a first dielectric precursor material and a first binder having an organic component and heat treating the conductive wire to form the insulated wire.
摘要:
Flexible insulated wires for use in a high temperature environment are provided. In an embodiment, the wire includes a conductor and a coating over the conductor. The coating is formulated from a dielectric material and an organic binder having an organic component, wherein the organic component has been substantially decomposed from the coating during manufacture. The flexible insulated wire may be incorporated into a component. Methods of forming the flexible insulated wire are also provided.
摘要:
A power source is provided for a resistive heating element that heats a catalyst bed of a reactor that receives a monopropellant fuel and reacts the fuel in the presence of the catalyst bed to provide hot gas driving a turbine. The power source is a capacitor that discharges its charge across the resistive heating element so that its temperature is elevated to a point where the reaction of the monopropellant fuel occurs. The power source may be used in airborne applications, such as emergency power systems for aircraft, where it is desirable to minimize the weight of the unit and to allow the unit to use safer monopropellant fuels.
摘要:
An air quality system comprising at least one air cleaner unit in communication with an interior air space. In one embodiment, an air quality system for an aircraft comprises a first set of air cleaner units in communication with a lower plenum of the aircraft recirculation system and a second set of air cleaner units in communication with an upper plenum of the aircraft recirculation system. Each air cleaner unit comprises at least one adsorbent unit in combination with at least one photocatalytic oxidation unit. In one embodiment, an air cleaner unit comprises a relatively weak adsorbent material upstream from a photocatalytic oxidation unit, and a relatively strong adsorbent material downstream from the photocatalytic oxidation unit. Methods for removing a pollutant from an air stream and for making an air cleaner unit are also disclosed.
摘要:
Flexible insulated wires for use in a high temperature environment include a conductor and a coating over the conductor. The coating is formulated from a dielectric material and an organic binder having an organic component, wherein the organic component has been substantially decomposed from the coating during manufacture. The flexible insulated wire may be incorporated into a component.
摘要:
A method for purifying breathing air using a carbon-based monolith structure impregnated with copper, silver, zinc, and molybdenum species and triethylenediamine, wherein the monolith structure is impregnated by a multiple step process. The method of impregnation results in a carbon-based monolith structure that purifies nuclear, biological, or chemical contaminants under conditions of high flow rate and low pressure drop.