39results about How to "Remove water" patented technology

A method of removing water and / or methanol from fluid mixtures of the water or methanol with other compounds uses vapor permeation or pervaporation of the water or methanol, as the case may be, from the mixture through a membrane having an amorphous perfluoropolymer selectively permeable layer. The novel process can be applied in such exemplary embodiments as (a) removing water or methanol from mixtures of compounds that have relative volatility of about 1-1.1 or that form azeotropic mixtures with water or methanol, (b) the dehydration of hydrocarbon oil such as hydraulic fluid to concentrations of water less than about 50 ppm, (c) removing water and methanol byproducts of reversible chemical reactions thereby shifting equilibrium to favor high conversion of reactants to desirable products, (d) drying ethanol to less than 0.5 wt. % water as can be used in fuel for internal combustion engines, and (e) controlling the water content to optimum concentration in enzyme-catalyzed chemical reactions carried out in organic media.

A fuel system includes a fuel tank, a vent tank fluidically connected to the fuel tank ullage, the vent tank having a duct open to the ambient atmosphere and the interior of the vent tank, and a catalyst disposed in the duct, wherein the catalyst is adapted to deplete one or more reactive components of gas flowing through the duct by catalytic reaction. Also, a method for depleting one or more reactive components of gas in the fuel system, includes depleting one or more reactive components of gas flowing through the duct using the catalyst.

An air conditioning system for an aircraft in which cabin air is recirculated and mixed with cold air from an air conditioning machine which includes at least one expansion turbine over which warm pressurized air is expanded and cooled, and wherein the system includes a heat exchanger in which a heat load from hot cabin air is exchanged with the warm pressurized air prior to the pressurized air being expanded by the expansion turbine, further including a condenser heat exchanger in which recirculating cabin air is used to cool and promote water removal from the warm pressurized air before it is expanded by the expansion turbine.

A dental apparatus provides a substantially uniform concentration of abrasive material entrained in a pressurized gas to a desired location substantially irrespective the amount of abrasive material in a pressurized container of the apparatus, and resists clogging by the abrasive material. The apparatus includes a control unit having a container that secures the abrasive material, the abrasive material in the container becoming entrained in pressurized gas received from a dental unit. The concentration of the mixture of entrained abrasive material in pressurized gas is maintained by upwardly directing the flow of the mixture in a first conduit against a cap, a portion of the entrained abrasive material returning to the container, with the regulated mixture of entrained abrasive material in pressurized gas being delivered through a hand piece to the desired location.

The disclosed invention relates to a countercurrent process for the continuous esterification of C1-22 (fatty) acids with C1-10 monoalkanols, C2-5 di- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor (1) and in a reaction column (3), characterized in that the reaction column (3) is preceded by the preliminary reactor (1) and a separation unit (2) for the purpose of reducing the viscosity of the reaction mixture and removing the water of reaction from the system via a separation unit (2) to displace the reaction equilibrium before the reaction column (3). A further aspect of the invention concerns feeding nitrogen in at the lowermost plate of the reaction column (3) in order to increase the vapor load in the lower part of the reaction column.

The invention is directed to a process for recovering / purifying (meth)acrylic acid which does not use azeotropic solvent and is based on the use of two columns for purifying a reaction mixture comprising (meth)acrylic acid. The process according to the invention includes a dry vacuum pump condensation system, which makes it possible to reduce the amount of final aqueous discharges.

The invention relates to a micronized composition. In particular the invention relates to a micronized composition, a coated fertilizer, a coated seed, a method of producing a micronized composition and a method of covering a granule. The micronized composition includes at least one type of water-soluble micronutrient, a clay binder and a dehydrating agent, the at least one water-soluble micronutrient, clay binder and dehydrating agent being micronized.

An apparatus main body having wheels and configured to run on a floor includes an electrolysis device, which electrolyzes a cleaning water to alkaline water and acid water. A pressurizing pump selectively sucks and pressurizes the alkaline water or acid water obtained by electrolysis by the electrolysis device. A spray nozzle mechanism sprays the cleaning water comprising the alkaline water or acid water pressurized by the pressurizing pump on the floor. A suction nozzle is mounted behind the spray nozzle mechanism in the apparatus main body and is opened to the floor. A suction mechanism sucks the cleaning water sprayed on the floor together with a contaminant. A reservoir tank, which is mounted in the apparatus main body, stores the sucked cleaning water together with the contaminant.

A fuel cell system is provided which has a humidifying means (2) for directly humidifying a polymer electrolyte membrane (12) that serves as an ionic conductor. As the humidifying means (2), means is employed which has a water holding unit (21) comprised of a water-absorbing material and located in contact with the polymer electrolyte membrane to directly humidify the polymer electrolyte membrane (12) by utilizing a capillary action and further has a humidification water passage (28) comprised of a hydrophilic material and provided in the polymer electrolyte membrane so as to be connected to the water holding unit (21) to humidify the polymer electrolyte membrane (12) rapidly and uniformly. Such a constitution provides a fuel cell system that can directly humidify an ionic conductor.

A fuel cell module includes a cell unit including an electrolyte membrane, a cathode disposed on one face of the electrolyte membrane, and an anode disposed on the other face of the electrolyte membrane, and a water reservoir which stores water produced at the cathode. The water reservoir includes an opening formed in a region other than the cathode of the cell unit, and a projection projecting from the opening to an anode side. The water covering a cathode surface of a fuel cell is reduced.

A method of drying fresh plant material wherein the fresh plant material containing a desired heat labile compound is exposed to microwave energy at an intensity and for a time sufficient to remove a majority of the water from the plant material without degrading a majority of the heat labile compound. The method is particularly suited to in-field drying of freshly harvested plant material to reduce the weight and volume of the plant material for savings transportation costs to an extraction facility while preserving at high levels the amount and activity of the desired heat labile compound.

A fuel cell module includes a cell unit including an electrolyte membrane, a cathode disposed on one face of the electrolyte membrane, and an anode disposed on the other face of the electrolyte membrane, and a water reservoir which stores water produced at the cathode. The water reservoir includes an opening formed in a region other than the cathode of the cell unit, and a projection projecting from the opening to an anode side. The water covering a cathode surface of a fuel cell is reduced.

A foaming composition is provided, which includes water, pulp, alginic ester, and a surfactant. A preferable example of the alginic ester is propylene glycol alginate. The alginic ester may be mixed therein at a mixing amount ranging from 5 parts by weight to 15 parts by weight based on 100 parts by weight of the pulp.