323results about "Multiple-effect/fractional condensation" patented technology

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.

A system and process for the recovery of oil from the pyrolysis of material containing hydrocarbons such as shredded vehicle tires. The system utilizes a pair of sequentially positioned packed towers to recover at least 95% of the oil contained in the pyrolysis gases. The first packed tower operates above the dew point of the water vapor in the pyrolysis gases to insure that no water is condensed and obtain a primary oil fraction having oil with a high flash point of about 60° C. or greater and a primary vapor fraction containing additional oils, fuel gases and water vapor. The primary vapor fraction is fed to the second packed tower which operates below the dew point of the water vapor to condense the water and oil having a low flash point of 34° C. or below, and provide a secondary vapor fraction containing valuable fuel gases.

The present invention includes an apparatus for separating particulates from a fluid in a suspension, comprising: a housing defining a frusto-conically shaped inner chamber with an inner wall, an inlet and a first outlet communicating with the chamber, and a second outlet; and a spinning assembly with a hollow interior mounted in the chamber, the assembly being shaped to define an annular gap with the chamber inner wall, the hollow interior communicating with the second outlet, and the hollow interior communicating with the annular gap for flow of fluid materials from the gap into the interior and out of the second outlet in response to rotation of the spinning assembly. The separator finds application in the preparation of waste products such as municipal sewage sludge for processes that produce useful materials including gas, oil, specialty chemicals, fertilizer, and carbon solids, in reliable purities and compositions, and with high energy efficiency.

This invention has a series of multiple parallel plates that form desalination chambers between them that have seawater or other saline water flowing down the inside of one plate of each chamber. Steam which is generated by solar heat or other heat source condenses on the outside of first chamber of the series on the plate, which has seawater running down it. This releases heat that evaporates the seawater. The vapor flows to the other wall (plate) of the desalination chamber and condenses, and this releases heat that flows through the plate to the next stage of parallel plates and evaporates seawater flowing down the other side of the plate. Each succeeding stage operates at a lower temperature than the previous stage. The final stage is cooled by the evaporation of seawater into the air. One embodiment of the invention has the parallel plates sloped at an angle to the horizontal so that the seawater flows down on the lower plate and evaporates with heat supplied from below. The vapor condenses on the ceiling of the chamber. Since each succeeding stage upward is at a lower temperature, the vapor pressure will be lower in succeeding stages. This pressure differential can be used to pump the seawater from one stage to the next higher stage.

A distilling apparatus for alcohol includes an evaporation tank having a compartment for receiving fermented alcoholic liquid. A heating tube is mounted in the compartment for heating the fermented liquid into steam. A condensing device is communicated with the evaporation tank for receiving and condensing steam from the evaporation tank. A collecting tank is communicated with the condensing device for collecting condensed liquid from the condensing device. A negative pressure creating device creates a negative pressure in the evaporation tank, allowing the fermented alcoholic liquid in the evaporation tank to evaporate at a low temperature. A solar energy collecting device includes a solar energy collector and a water tank containing water heated by the solar energy collector. Hot water in the water tank flows into the heating tube for heating the fermented alcoholic liquid in the evaporation tank.

A method and a system to produce a distillate stream from an aqueous stream containing at least one dissolved solid by a distillation process using at least one of a heated aqueous stream from a turbine system intercooler and a stack heater as a heat source.

The invention relates to an oil gas recovery device, comprising an anti-exposure centrifugal fan, a cold box, a refrigeration unit, a liquid storage tank, a liquid return pump, an oil storage tank, a first adsorption tank, a second adsorption tank, a vacuum pump, a nitrogen making unit, and Including the PLC automatic control system; the oil and gas are first transported into the cold box by the anti-exposure centrifugal fan, and the liquid oil condensed by the pre-cooling part, the first-level condensing part and the second-level condensing part of the cold box is sent to the liquid storage tank, and then returned to the storage tank. The liquid pump is sent to the oil storage tank for recovery; the oil and gas from the secondary condensing part are sent to the first adsorption tank after the heat is raised by the pre-cooling part, and the first adsorption tank and the second adsorption tank are cycled for adsorption and desorption. When the first adsorption tank or the second adsorption tank enters the desorption stage, the vacuum pump is turned on, and when the vacuum degree of the adsorption tank reaches the set value, the hot nitrogen gas is turned on to desorb the oil and gas with the hot nitrogen gas. By utilizing the advantages of the condensation method and the adsorption method to optimize the combination, the purpose of reducing energy consumption and eliminating potential safety hazards is achieved.

The invention provides machines and methods for extracting water from atmospheric air. Also provided are bladed core heat exchangers.

A MEG reclamation process includes the step of increasing above 2,000 ppm the divalent metal salts concentration of a rich (wet) MEG feed stream flowing into a precipitator. The increasing step includes routing a salts-saturated MEG slipstream from the flash separator it to the precipitator. The slipstream may be mixed with a fresh water feed stream, a portion of the rich MEG feed stream, or some combination of the two. The rich MEG feed stream also may be split into two streams, with a portion of the stream being heated and routed to the flash separator and the other portion being combined as above with the removed slipstream. The process can be performed on the slipstream after dilution and prior to entering the precipitator or after being loaded into the precipitator. Removal of the insoluble salts may be done in either a batch or continuous mode.

Disclosed is an evaporative desalination device of multi-stage and multi-effect using solar heat constructed in multi stage and multi effect as a desalination device that is capable of not only increasing fresh water output but also resolving a problem of conventional desalination device having series structure as well, through constructing: 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; 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.

The invention relates to an energy-saving environment-friendly integrated recycling and utilization method of coal chemical gasification washing black water high-temperature flashing steam. According to the energy-saving environment-friendly integrated recycling and utilization method, gasification washing black water is subjected to vacuum flashing so as to obtain high-temperature flashing steam with a temperature ranging from 170 to 179 DEG C, the high-temperature flashing steam is delivered into a second stage dehydration tank for dehydration, and then is delivered into a washing tower for full washing and dehydration; the high-temperature flashing steam is delivered into a grey water heat exchanger to heat grey water, and then is delivered into a stripping tower reboiler to heat column reactor steam stripping qualified liquid; un-condensed high-temperature flashing steam is delivered into a stripping tower for ingredient separation and recycling; and high-temperature flashing steam obtained from a first stage fractional condenser and a second stage fractional condenser is delivered into the stripping tower for steam stripping, separating, and recycling; and at last, scaling ingredients in the high-temperature flashing steam are moved completely, full utilization of the high-temperature flashing steam is realized, grey water is diluted, so that scaling caused by recrystallization is not caused, and complete recycling of grey water is realized.

The invention discloses an indirect condensation type oil-gas recovery unit with a self-defrosting function. The unit comprises a primary direct-expansion type condensing system, a secondary indirectcondensing system, a third indirect condensing system and a waste cold recovery system connected through an oil-gas pipeline. By organically combining a direct-expansion type refrigerating technologywith an indirect condensing technology, secondary and third systems easy to be frozen and condensed have low voltage and oil deficient problems as a refrigerant migrates easily as the refrigerating and defrosting modes are switched. By adopting the indirect condensing technology, a refrigerant system of a compressor is in a single refrigerating cycle all the way, so that the problem that the refrigerant migrates is solved thoroughly, and therefore, the low voltage of the system and oil deficiency of the compressor are further solved, and the operating reliability of the condensing unit is improved greatly.

Disclosed herein is a fracturing unit for hydraulic fracturing having an engine and a fracturing pump connected to the engine through a variable speed torque converter. Also disclosed is a hydraulic fracturing system using multiple fracturing units which are sized similar to ISO containers. A hydraulic fracturing system may also force flow back water, produced water, or fresh water through a heat exchanger so that heat from the fracturing engines can be transferred to these liquids in order to vaporize them. A force cooled fractioning unit then can accept the vapor/steam in order to condense the various components and produce distilled water for re-use in the fracturing process or for release into the environment.

The invention belongs to the technical field of industrial production waste gas recovery, and particularly relates to a recovery system for N-methyl pyrrolidone in lithium battery industrial waste gas treatment and a technology of the recovery system. The recovery system comprises a precooling and exchanging unit, a condensing unit, an adsorption and regeneration unit and an NMP waste liquor recovery tank which are sequentially connected, and the precooling and exchanging unit and the condensing unit are both connected with the NMP waste liquor recovery tank. Compared with the prior art, according to the NMP gas recovery system, equipment is simple, the technological process is short, no activated carbon adsorbent is used, eluting tower waste liquor is not generated, and the primary recovery rate of NMP can reach 99% or above; the production environment is effectively improved, personnel body health is prevented from being harmed, the cost of enterprise consumables is reduced, and the resource recovery utilization rate is increased.

A vacuum condenser adapted to reduce pressure in an enclosure containing a secondary liquid and thereby cause the accelerated production of vapor from the secondary liquid by the passage of a primary liquid through the vacuum condenser and whereby the vapor produced is absorbed by the primary liquid within the vacuum condenser by being entrained and condensed within the primary liquid wherein the vacuum condenser is configured to cause the operating temperature of the secondary liquid within the enclosure to maintain a stable minimum temperature for a predetermined substantial rate of production of vapor.

The invention discloses a method and a device for producing hexamethylenediamine from caprolactam, ammonia gas and caprolactam are subjected to ammoniation and dehydration reaction under the action of a catalyst, and the obtained ammoniation and dehydration reaction product is subjected to three-stage condensation separation; caprolactam obtained through secondary condensation and 6-aminocapronitrile condensate are subjected to a hydrogenation reaction under the action of a catalyst, a mixture containing hexamethylenediamine and caprolactam obtained through the reaction is separated to obtain hexamethylenediamine, and water accounting for 5%-500% of the total weight of the condensate is added in the hydrogenation reaction process to serve as a hydrogenation reaction diluent. According to the method, the caprolactam aqueous solution is used as the 6-aminocapronitrile hydrogenation reaction diluent, ethanol does not need to be added as the diluent, and generation of by-products N-Et-HMD, BHT and tar is reduced. The ammoniation dehydration reaction liquid is not subjected to rectification separation, so that the energy consumption is reduced.

The invention discloses an adsorbing condensing type oil vapor recovery device for effectively preventing adsorption temperature rise and an oil vapor recovery method. The device comprises an oil vapor inlet, a first valve set, an adsorption tank set, a second valve set, a clean gas exhaust port, a vacuum pump set, a first-level oil vapor condenser, a second-level oil vapor condenser, a third-level oil vapor condenser and a check valve, wherein the first valve set is composed of a gas inlet valve set under the adsorption tank set and a vacuum valve set in parallel connection with each other; the second valve set is composed of an exhaust valve set above the adsorption tank set and a blow-down valve set in parallel connection with each other; the blow-down valve set, the adsorption tank set, the vacuum valve set, the vacuum pump set, the first-level oil vapor condenser, the second-level oil vapor condenser, the third-level oil vapor condenser and the check valve are connected in turn; the check valve is connected with the oil vapor inlet; the oil vapor inlet is connected with the gas inlet valve set, the adsorption tank set, the exhaust valve set and the clean gas exhaust port in turn; a solid-liquid phase variable energy storage substance is filled into the adsorption tank set.

The invention relates to the technical fields of chemical engineering and environmental protection, in particular to a white smoke elimination system and a method. Specifically, the white smoke elimination system comprises a first smoke condenser, a desulfurizing tower, a second smoke condenser, a fan, a demister, a smoke-air mixing flue and a chimney, wherein a smoke outlet of the first smoke condenser is connected with an inlet of the desulfurizing tower, an outlet of the desulfurizing tower is connected with a smoke inlet of the second smoke condenser, a smoke outlet of the second smoke condenser is connected with an inlet of the demister, an outlet of the demister is connected with a smoke inlet of the smoke-air mixing flue, and an outlet of the smoke-air mixing flue is connected withthe chimney; an outlet of the fan is connected with an air inlet of the second smoke condenser, an air outlet of the second smoke condenser is connected with an air inlet of the first smoke condenser,an air outlet of the first smoke condenser is connected with an air inlet of the smoke-air mixing flue, and an outlet of the smoke-air mixing flue is connected with the chimney.