594results about "Evaporation with vapour compression" patented technology

Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, and a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product. Other embodiments of the invention are directed toward heat management, and other process enhancements for making the system especially efficient.

A system for dehydrating lubricating and hydraulic fluids includes a heating circuit and circuitry for creating a vacuum. The heating circuitry introduces a stream of heated fluid into a vacuum chamber in which a partial vacuum is drawn by the vacuum circuit. Aqueous components of the fluid stream are flashed in the vacuum chamber by virtue of the elevated temperature and reduced pressure. Dehydrated fluid is then collected and evacuated from the vacuum chamber. Vapor from the vacuum chamber, including the aqueous components of the fluid stream are collected, condensed and separately evacuated. The heating circuit limits surface temperature of a heating element in a closed-loop manner to avoid degradation of the fluid. The fluid stream is introduced into the vacuum chamber or is recirculated through the heating circuit to maintain a desired level of fluid temperature in a closed-loop manner. The system includes circuits for evacuating dehydrated fluid in a closed-loop manner and for automatically discharging condensate. The technique avoids undesirable foaming of dehydrated fluid within the vacuum chamber. A vacuum pulsing circuit is provided for periodically pulsing vacuum pressure within the vacuum chamber to aid in flashing aqueous components from the heated fluid stream.

A method for reducing and re-using waste heat and water resulting from thermal hydrocarbon recovery operations involving accessing a hot water stream produced in a thermal hydrocarbon recovery operation; vaporizing water from the water stream by applying a vacuum, thereby producing water vapor; and condensing the water vapor to produce high quality water. A system is described including a hot water intake interfacing with a hot water stream from a thermal hydrocarbon recovery operation; a vaporization module receiving the hot water stream from the hot water intake, comprising a vacuum chamber in which a vacuum is applied to produce water vapor from the hot water stream; a condensation module in which water vapor produced in the vaporization module is condensed to form high quality water; and a water outlet for releasing the high quality water from the condensation module for re-use within the thermal hydrocarbon recovery operation.

Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, and a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product. Other embodiments of the invention are directed toward heat management, and other process enhancements for making the system especially efficient.

An improved process for separation of liquid mixtures involves vapor stripping followed by mechanical compression of the vapor which is then exposed to a permeation membrane for separation of the compressed vapor.

In accordance with particular embodiments, a desalination system includes a plurality of evaporators. The plurality of evaporators includes at least a first evaporator and a last evaporator. The plurality of evaporators are arranged in cascading fashion such that a concentration of salt in a brine solution increases as the brine solution passes through the plurality of evaporators from the first evaporator towards the last evaporator. The desalination system also includes a plurality of heat exchangers. An input of each evaporator is coupled to at least one of the plurality of heat exchangers. The system also includes a vapor source coupled to at least one of the plurality of evaporators.

The invention relates to an MVR (Mechanical Vapor Recompression) continuous evaporative crystallization system and a continuous evaporative crystallization method. The system comprises an evaporator, a steam-liquid separator, a main steam compressor, an assistant steam compressor and a crystallizer. The outlet of the evaporator is connected with the inlet of the steam-liquid separator. The top outlet of the steam-liquid separator is connected with the main steam compressor which is further communicated with the top inlet of the evaporator. The communicating pipeline of the main steam compressor with the top inlet of the evaporator is provided with a branched pipeline connected to the crystallizer. The branched pipeline is provided with the assistant steam compressor which is provided by a bypass. The bottom outlet of the steam-liquid separator is respectively connected with the inlets of the evaporator and the crystallizer. The top of the crystallizer is connected with the inlet of the steam-liquid separator. The method is carried out by the system. Through reasonable design, the energy-saving economical benefit, the integrity, the reasonability and the agility of the evaporative crystallization technology are further improved. Secondary steam in the evaporating and crystallizing process is adequately utilized, and latent heat is recovered, so that the thermal efficiency is improved.

Production of diesel oil from hydrocarbon-containing residues in an oil circulation with separation of solids and product distillation for the diesel oil product by energy input with a high-speed chamber mixer and the use of fully crystallized catalysts that consist of potassium-, sodium-, calcium-, and magnesium-aluminum silicates, wherein the energy input and conversion occur primarily in the high-speed chamber mixer.

A water vending apparatus is disclosed. The water vending system includes a water vapor distillation apparatus and a dispensing device. The dispensing device is in fluid communication with the fluid vapor distillation apparatus and the product water from the fluid vapor distillation apparatus is dispensed by the dispensing device.

We provide an evaporator technology for treatment of produced water that may be deoiled water. Systems described herein utilize a vertical tube heat exchanger bundle where the brine is distributed in a falling film along the inside of the tube wall. Condensing steam causes a portion of the deoiled water to evaporate; this water vapor travels upward in a counterflow direction relative to the deoiled water. This evaporator technology provides several design advantages over the conventional vertical tube co-current flow evaporators (where the vapor flows downward with the falling film). These advantages include a minimal total installed cost (TIC) as well as offering optimal design features for water chemistry management.

A method and apparatus for desalinating water combined with power generation, comprising a desalination system used for desalinating coastal seawater and comprising a power generation system, wherein such dual purpose co-generation facility captures the heat vapor exhausted or a steam turbine generator's condenser is replaced by the desalination plant's heat exchanger enabling such captured heat energy to reduce the energy requirements of the desalination plant, and wherein brine solution being treated by the desalination plant is pumped from the substrata sea water table wells having low salt content brackish water.

Embodiments provided herein include methods and apparatuses for purification and recycling of hydrofracture water used in natural gas drilling and production. Embodiments include removal of dissolved solids by precipitation with sodium sulfate and by evaporation using, for example, a multiple effect evaporator.

A multiple application recycling and purification device has a coaxial core that is horizontally oriented, non-rotating, cylindrical distillation chamber. The enhanced, completely coaxial configuration continuously cleans the entire distillation chamber and spreads a thin film of liquid to enhance distillation and positively aid in the removal of remaining contaminants. Through a timed and positioned valve, the device removes and purges lower-temperature contaminants. Timed valves and sensors control all phases of the distillation to provide a coaxially integrated, stand-alone, adaptable, scalable and maintenance free distillation unit that self-monitors, self-cleans and economically functions to produce the pure distilled liquid, e.g., water. This device can be modified to purify any numerous array of liquids and can be scaled to produce any amount of purified liquids for either household, commercial, or industrial applications.

The invention discloses a sea-water distillation apparatus by mechanical compression distillation method which comprises a steam mechanical compressor, a plurality of evaporators and condensation tubes, spraying systems, fresh water tanks and foam trapping nets arranged in the evaporator, wherein the exit of the steam mechanical compressor is connected with the condensation tube in the first evaporator in the multiple evaporators, the condensation tube in the first evaporator is connected with the fresh water tank, the vapor exit of the first evaporator is connected with the condensation tube in the next evaporator, and so on, until the last evaporator, thus multiple effect step by step evaporation is realized by the various evaporators. The invention also discloses a process for sea water desalination by using the sea-water distillator.

A modular distillation apparatus including at least one heat exchanger that preheats contaminated liquids; a heater that heats the contaminated liquid from the heat exchanger; an evaporator condenser adapted to boil the contaminated liquid coming out of the heater to produce water vapor and contaminant concentrate, and condense the water vapor into distilled water; a vacuum chamber capable of operating at below atmospheric pressure, the vacuum chamber housing the evaporator condenser and including at least one partition to separate the distilled water from the contaminant concentrate; a vapor compressor operably associated with the vacuum chamber to receive water vapor from the evaporator condenser in the vacuum chamber and pump the water vapor at pressure back through the evaporator condenser, wherein the heat exchanger recovers sensible heat from outgoing condensed distilled water and contaminant concentrate recycled from the vacuum chamber.

According to one embodiment of the invention, a vapor-compression evaporation system includes a plurality of vessels in series each containing a feed having a nonvolatile component, a mechanical compressor coupled to the last vessel in the series and operable to receive a vapor from the last vessel in the series, a pump operable to deliver a cooling liquid to the mechanical compressor, a tank coupled to the mechanical compressor and operable to separate liquid and vapor received from the mechanical compressor, a plurality of heat exchangers coupled inside respective ones of the vessels, the heat exchanger in the first vessel in the series operable to receive the vapor from the tank, at least some of the vapor condensing therein, whereby the heat of condensation provides the heat of evaporation to the first vessel in the series, and wherein at least some of the vapor inside the first vessel in the series is delivered to the heat exchanger in the next vessel in the series, whereby the condensing, evaporating, and delivering steps continue until the last vessel in the series is reached.