Abstract:
A direct-fired evaporator includes a closed vessel into which a slurry feed of a slurry is provided. The vessel includes an outlet for concentrated product and an outlet for solvent vapor. A furnace extends through the vessel under a level of the slurry. A burner is positioned at an entrance to an interior of the furnace. An agitator is disposed in the vessel so as to agitate the slurry around an outer wall of the furnace. Flue gases from combustion are used as a heat-transfer medium for evaporating the slurry. The direct-fired evaporator can be used as a first effect in a multi-effect evaporation system.
Abstract:
A purification system can provide for efficient heating of liquid via film heating, which, rather than heating a large volume of liquid, can heat a thin layer of liquid thus reducing the amount of energy required to evaporate the liquid. Film heating can enable evaporation of liquids using less energy than other methods. In addition, when liquids (e.g., seawater) having dissolved solids (e.g., salts) are heated, both the liquid and the solids must be heated. As evaporation occurs, the concentration of solids increases and more energy must be supplied to the liquid in order to cause evaporation. Because purification system can heat only a layer of liquid, less energy is required to heat the solids, which can allow for higher energy efficiencies in purifying liquids. These efficiencies can lead to decreased cost of potable water. Related apparatus, systems, techniques, and articles are also described.
Abstract:
A water purification system includes a high temperature water tank, a nameless heat source, a cylindrical vessel (hydrocyclone nest), a first pump, a steam production meter, and a steam condenser and heat exchanger. The contaminated water is heated within the high temperature water tank using the nameless heat source. The heated contaminated water heats the cylindrical vessel and one or more sets of hydrocyclones. The heated contaminated water is pumped into the cylindrical vessel such that the heated contaminated water enters a tangential inlet of the hydrocyclones, the hydrocyclones separate the heated contaminated water into steam and solids/concentrate, the steam exits through an overflow of the hydrocyclones and a first outlet of the cylindrical vessel, the solids/concentrate exit through an underflow of the hydrocyclones and a second outlet of the cylindrical vessel. The steam is condensed into purified water using the steam condenser and heat exchanger.
Abstract:
A fuel cell system comprising a fuel cell stack, an evaporator for evaporating a mixture of methanol and water to be forwarded through a catalytic reformer for producing portions of free hydrogen. The fuel cell stack being composed of a number of proton exchange membrane fuel cells each featuring electrodes in form of an anode and a cathode for delivering an electric current. The liquid fuel using a. pre-evaporator, which. partly evaporates the fuel, followed by a. nozzle, which atomizes the fuel into a fine mist, before being passed to the final evaporation zone. This configuration ensures that liquid fuel for producing thermal, neat is converted into a form that facilitates a burner to achieve a quick heating up of the fuel, cell system into production mode.
Abstract:
The invention relates to a method and apparatus for processing waste water generated during oilfield drilling operations with a mobile processing unit utilizing heat energy sourced from burning hydrocarbon fuel directly and/or capturing and using the exhaust heat energy generated by burning hydrocarbons in engines such as diesel engines in order to vaporize a dominant mass of the aqueous phase of the waste water while clarifying the heat source combustion gasses. The water vapor generated by the vaporization process may be discharged directly to the atmosphere or alternately condensed and captured for use as potable water. The residual waste water is thereby concentrated and the cost to dispose of the waste water is greatly reduced.
Abstract:
L'invention concerne un procédé et une machine de fonctionnement statique qui sépare l'eau de l'huile contenus dans les condensats d'air comprimé (AC) en faisant évaporer cycliquement l'eau contenu dans ces derniers caractérisé en ce que l'énergie calorifique (5) nécessaire pour l'évaporation est prélevée dans l'air comprimé sortant du compresseur, et où on utilise la poussée de l'air comprimé disponible pour effectuer la montée des condensats sur le serpentin (3) d'évaporation à chaque cycle de purge. L'invention est utilisable dans un environnement où il peut y avoir des vibrations et des différences d'orientation des accélérations.
Abstract:
A system and method for treating waste water includes: receiving waste water at a first pressure and a first temperature, the waste water including dissolved solids and volatile organic compounds; pressurizing, by a pump, the received waste water to a second pressure greater than the first pressure; preheating, by a preheater, the pressurized waste water to produce distilled water and a pressurized/preheated waste water; heating, by a heater, the pressurized/preheated waste water to a second temperature greater than the first temperature to produce pressurized/heated waste water; removing, by a flash evaporator, dissolved solids from the pressurized/heated waste water by evaporation to produce steam and brine water, wherein the brine water has a total dissolved solids content greater than a total dissolved solids content of the received waste water; and crystallizing, by a plasma crystallizer, the brine water to produce a solid mass of waste product and steam.
Abstract:
A fluid vapor distillation system. The system includes a control system for controlling a fluid vapor distillation apparatus including a blow down controller for controlling a blow down valve, a source flow controller for controlling a source flow valve, and a blow down level sensor in communication with a blow down controller and a source flow controller, the blow down level sensor sends signals related to the blow down level to the blow down controller and the source flow controller indicative of the blow down level, wherein the source flow controller actuates the source flow valve based at least on the blow down level sensor signals, and wherein the blow down controller actuates the blow down valve based at least on the blow down level sensor signals, whereby the blow down level and the source flow level are maintained using the blow down level sensor signals as input.
Abstract:
Beschrieben wird ein sehr energieschonendes Verfahren zum Aufkonzentrieren wässriger Lauge, die z.B. aus einer Chloralkalielektrolyseanlage stammt, und eine dafür geeignete Vorrichtung. Das Verfahren / die Vorrichtung nutzt Reaktionswärme aus der Bildung von 1,2-Dichlorethan und beinhaltet ein mehrstufiges Aufkonzentrieren der wässrigen Lauge, wobei zumindest ein Teil der für das Aufkonzentrieren der wässrigen Lauge benötigten Wärme aus der Anlage zur Herstellung von 1,2-Dichlorethan stammt und wobei zumindestens ein weiterer Teil der für das Aufkonzentrieren der wässrigen Lauge benötigten Wärme aus mindestens einer der höheren Stufen der Anlage zum Aufkonzentrieren der wässrigen Lauge stammt und zum teilweisen Aufheizen der ersten Stufe verwendet wird. Die Vorrichtung kann zur Nachrüstung von bestehenden Anlageverbunden aus DCE-Anlage und Chloralkalielektrolyse oder bei der Erstellung von Neuanlagen eingesetzt werden.
Abstract:
Die Erfindung betrifft ein Verfahren zur Wasseraufbereitung in einem industriellen Prozess, wobei Wasser (4) durch einen thermischen Wasseraufbereitungsprozess (6) aufbereitet wird und Wärme für den thermischen Wasseraufbereitungsprozess (6) einem zweiten thermischen Prozess (8) durch Wärmeaustausch entzogen wird und das aufbreitete Wasser einem Verdampfungsprozess (2) zugeführt wird.