摘要:
A method for discharging a nickel-metal hydride storage battery comprising a positive electrode containing nickel hydroxide, a negative electrode containing a hydrogen absorbing alloy, an alkaline electrolyte, and an alkali conducting separator provided between the positive electrode and the negative electrode. The alkali conducting separator may be a solid alkali metal ion super ion conducting material, wherein the alkali metal is Na, K, or Li.
摘要:
Alkali metals and sulfur may be recovered from alkali polysulfides in an electrolytic process that utilizes an electrolytic cell having an alkali ion conductive membrane. An anolyte solution includes an alkali polysulfide and a solvent that dissolves elemental sulfur. A catholyte solution includes alkali metal ions and a catholyte solvent. Applying an electric current oxidizes sulfur in the anolyte compartment, causes alkali metal ions to pass through the alkali ion conductive membrane to the catholyte compartment, and reduces the alkali metal ions in the catholyte compartment. Sulfur is recovered by removing and cooling a portion of the anolyte solution to precipitate solid phase sulfur. Operating the cell at low temperature causes elemental alkali metal to plate onto the cathode. The cathode may be removed to recover the alkali metal in batch mode or configured as a flexible band to continuously loop outside the catholyte compartment to remove the alkali metal.
摘要:
An apparatus for delivering a beneficial agent is disclosed in one embodiment of the invention as including a water collection chamber. A water-transporting membrane is provided to communicate with the water collection chamber. An extraction chamber receives water through the water-transporting membrane, expanding the extraction chamber. A dispensing chamber, containing a beneficial agent, is configured to contract upon expanding the extraction chamber. This causes the dispensing chamber to expel the beneficial agent through a subterranean delivery channel, such as a rigid hollow spike. In certain embodiments, a rate adjustment mechanism may control the rate that water is received through the water-transporting membrane, thereby controlling the rate the beneficial agent is expelled. The water-transporting membrane has features that repel osmagent from passing through to the water collection chamber. The apparatus features steady rate performance without refreshing the water chamber and low temperature sensitivity.
摘要:
An apparatus and method for applying a beneficial agent to the skin is disclosed in one embodiment of the invention as including first and second chemical reactants, each being compatible with the skin. The first and second chemical reactants react with one another to generate a beneficial agent and enhance the permeability of the skin (e.g., by generating heat). The beneficial agent may then be applied to the skin while the permeability of the skin is enhanced. In selected embodiments, the first chemical reactant includes one or more metals, or alloys thereof, that are compatible (i.e., not harmful) with the skin. Similarly, in selected embodiments, the second chemical reactant may include water. In certain embodiments, the beneficial agent generated by the first and second chemical reactants includes an antioxidant such as hydrogen.
摘要:
Disclosed herein is an improved method for regenerating materials from a desulfurization/demetallation reaction. The desulfurization/demetallation reaction preferably has products including one or more of an alkali sulfide, polysulfide or hydrosulfide, or alkali earth sulfide, polysulfide, or hydrosulfide. The method includes the steps of reacting the desulfurization/demetallation products with a halogen, liberating and removing sulfur from the product, and then electrolyzing the halogenated products to separate the halogen from the alkali metal or alkali earth metal.
摘要:
A method that produces coupled radical products from biomass. The method involves obtaining a lipid or carboxylic acid material from the biomass. This material may be a carboxylic acid, an ester of a carboxylic acid, a triglyceride of a carboxylic acid, or a metal salt of a carboxylic acid, or any other fatty acid derivative. This lipid material or carboxylic acid material is converted into an alkali metal salt. The alkali metal salt is then used in an anolyte as part of an electrolytic cell. The electrolytic cell may include an alkali ion conducting membrane (such as a NaSICON membrane). When the cell is operated, the alkali metal salt of the carboxylic acid decarboxylates and forms radicals. Such radicals are then bonded to other radicals, thereby producing a coupled radical product such as a hydrocarbon. The produced hydrocarbon may be, for example, saturated, unsaturated, branched, or unbranched, depending upon the starting material.
摘要:
A high-temperature, steam-selective membrane for adding steam to or removing steam from various types of chemical reactions is disclosed herein. In one embodiment, such a membrane includes a polymer layer (a Nafion or sulfonated PEEK polymer layer, for example) exhibiting high selectivity to the transport of steam relative to other gas species. The polymer layer is sandwiched between substantially rigid porous layers that are steam permeable. The rigid porous layers substantially immobilize the polymer layer and reduce the tendency of the polymer layer to shrink and/or expand in response to changes in temperature or humidity. The rigid porous layers may also retain water to keep the polymer layer moist. The physical support and moisture retention provided by the rigid porous layers enable the polymer layer to operate in a temperature range of about 100° C. to 500° C.
摘要:
An apparatus for administering a therapeutic is provided. In various embodiments, the apparatus includes a syringe having a barrel and a plunger and having an ozone generator associated therewith. The generator is initiated and a therapeutic gas is accumulated within the barrel, at which point it can be delivered from the barrel into a target site via a needle, thereby delivering therapeutic effects to that target site.
摘要:
A device and method for atomizing a liquid for delivery to a target zone are presented. The liquid atomization device may include a liquid reservoir to contain a liquid, and a liquid pathway to receive at least a portion of the liquid from the liquid reservoir. The liquid pathway may include one end communicating with the liquid reservoir, and another end communicating with a target zone. Two electrodes may be placed in the liquid pathway to accommodate the liquid therebetween. An AC power source may be connected to each of the electrodes to generate an alternating current through the liquid, thereby atomizing at least a portion of the liquid for delivery to the target zone.
摘要:
A selective catalytic reduction (SCR) system includes an on-board ammonia generation system that produces nitrogen from air and hydrogen from a source of a hydrogen-containing compound, and generates an ammonia product from the nitrogen and hydrogen to provide the ammonia product into an exhaust from a NOx generator to reduce the NOx in the exhaust. Oxygen from one or both of the nitrogen generator and the hydrogen generation cell can be supplied to the NOx generator for cleaner combustion or to a particulate filter for cleaning the filter. H2O from the NOx generator can at least partially provide a water source for the hydrogen generation cell.