Abstract: An evaporative desalination device includes a multi stage vapor generator that generates vapor by passing a hot water supply pipe successively through a plurality of vapor generators to evaporate sea water inside thereof, a multi effect vapor generator that uses vapor in the respective vapor generators as heat source and forms a plurality of evaporator groups which can adjust a number of evaporators disposed inside the respective evaporator groups and produce fresh water according to amounts of supplied vapor to evaporate sea water in the evaporator groups on an outer circumference surface of an evaporation tube by heat of vapor flowing in the evaporation tube, and a discharge unit that condenses vapor in the multi effect generator by sea water to discharge fresh water in liquid state, and returns and supplies portions of discharged sea water to the multi stage vapor generator and the multi effect evaporator.

Abstract: Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, Fe2O3. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.

Abstract: A condenser includes: a top face of a tube plate on which acrylic acid may be condensed inside the condenser; a spray for spreading a polymerization inhibitor on the tube plate; a first polymerization inhibitor supply tube for supplying the polymerization inhibitor to the spray; and a supporter for supporting the spray at a predetermined position. The supporter supports the first polymerization inhibitor supply tube outside the condenser. The condenser allows a stable continuous operation for a long period of time by preventing polymerization of an easily polymerizable compound in the condenser into which a vapor of an easily polymerizable compound is supplied with a simple structure thereof.

Abstract: A water purification system for saltwater or otherwise polluted water. The system employs one or a plurality of tower like structures formed of a plurality of engaged modular individual boilers. Increased energy efficiency is obtained using rising heat from lower situated boilers in a communication with above situated modular boilers, through a channel surrounding the exterior of the stacked modular boilers. Incoming water is thereby subjected to a super heating process to render it potable and collected on exiting the top of the stacked modular boilers.

Abstract: A contaminated solvent recycling system comprises a distillation vessel having a distillation zone and a separate waste collection zone and heating means for heating contaminated solvent feed within the distillation zone vessel to distill off the solvent. By separating the distillation zone from the waste collection zone, the distillation zone can be made small enough to process small consecutive batches of contaminated solvent feed whilst the waste collection zone can be made large enough to accommodate waste accumulating from the distillation process for extended periods of time between waste removal operations.

Abstract: A home water distillation device for converting tap water to distilled water largely free of dissolved minerals and gases. A tubular shaped boiler with an electrical heating unit provides steam to a condensation coil immersed in an open top reservoir into which tap water is admitted under the control of a standard metering valve. The unit utilizes condensation heat to drive off chlorine and the like into the atmosphere, so that the steam is free of dissolved gases and the distillate product is corresponding free and therefore of increased palatability.

Abstract: A water distillation apparatus includes a cylindrical housing with a first cover thereon, a pair of spaced apart funnel-shaped partitions, a second cover on the uppermost partition and a skirt extending downwardly from the periphery of the cover and the uppermost partition to a location above the bottom of the housing, the partitions and skirt dividing the interior of the housing into an inlet reservoir chamber for cold water above the first partition, a lower boiling chamber beneath the second partition and an inclined condensation passage between the partitions. Cold water is introduced through a pipe and solenoid valve into the bottom of the reservoir chamber for overflow through an opening in the second cover into the boiling chamber. A heater in the boiling chamber heats the water to produce steam which rises, passing into the condensation passage and flowing downwardly to a central drain for discharge into a distilled water reservoir beneath the housing.

Abstract: A water desalination apparatus which is constructed of a main housing which includes a condensation chamber and a vapor chamber located above the condensation chamber. Brackish water is to be supplied into the vapor chamber with this brackish water to produce a vapor which is to be removed by a centrifugal compressor arrangement into the condensation chamber. The condensed brackish water from the vapor chamber is to flow through a mass of thin-walled tubes to be eventually discharged into the ambient. The exterior wall of these tubes is located within the condensation chamber and it is on the walls of these tubes that the distilled water vapor is to collect and condense and flow from the condensation chamber to a collection source.

Abstract: Process for the evaporative concentration of liquids. Vaporization is carried out by indirect heat exchange with a heating fluid in an evaporator. The vapor produced in the evaporator is thereafter condensed in a condenser by indirect heat exchange with a cooling liquid which is mainly composed of the liquid to be concentrated or the liquid which has already been concentrated in the evaporator. The vapor pressure over the cooling liquid in the condenser may be lowered by causing gas to flow in contact with the cooling liquid.

Abstract: A water distiller includes an inner vessel in which source water is heated, an outer dome or housing on the inner surface of which the vapor from the inner vessel is condensed and a reservoir for receiving the condensate. The inner vessel includes a closure which directs vapor radially of the inner vessel to the dome or housing and which may include a vapor filtration element. A variety of domes or housings are shown including those of double wall construction with ports or vents to direct heat transfer fluid or air between the walls thereof, and those having lower portions which downwardly converge to direct the condensate to a central mouth of a reservoir.

Abstract: An apparatus for desalinating sea water, comprising a distillation unit which includes a porous hydrophobic membrane which is pervious to steam but impervious to water, and a condensation surface arranged at a distance from the membrane, the distillation arrangement also including a first unit for heating and conducting the water to be distilled on one side of the membrane, and a second unit arranged to conduct a liquid which is colder than the water, on the side of the condensation surface remote from the membrane, distilled water being collected and drawn-off between the membrane and the condensation surface.

Abstract: A water distiller apparatus for purifying and degassing domestic water supplies is provided which is constructed for easy cleaning of all parts and in which inflowing water is preheated by condensing steam within a condenser which preheating allows dissolved gases to dissipate through a vent before the inlet water reaches an evaporator portion. The rate of inflowing water is controlled by a temperature responsive valve that is in thermal communication with the condenser to maximize heat transfer and minimize heat and water loss.

Abstract: A distilled water production device in which cooling water from a condenser is supplied to the boiler at a constant rate. The device is provided with an overflow tube on the outflow conduit for cooling water from the condenser which diverts excess cooling water away from the boiler to a discharge pipe.

Abstract: Water degasification and distillation apparatus having a container for water to be degasified and distilled, a relatively small boiler adjoining said container and having a first conduit extending into the container so that a selected water level in the container will fill said boiler to a selected height, a condenser within the container and immersed in the water contained therein, a second conduit extending from the space above the water in said boiler to the inlet of the condenser, an outlet on the condenser extending through a container wall for discharging degasified and distilled water and heating means in said boiler for heating the water therein at a rate greater than the capacity of the second conduit to handle the steam generated in the boiler.

Abstract: The waste water output of an RO unit in a distillation system is conveyed to a still's condenser cooling coil to minimize water requirements of the system. A portion of the heated water fron the condenser, in one embodiment, is circulated to the RO unit inlet, where a temperature mixing valve maintains an optimum temperature for the RO inlet water by mixing feed water and condenser output water in the desired proportions.