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7384501 |
Method for improved turpentine recovery from modern cooking plants
A method for the preparation of pulp by means of alkaline cooking, in which method spent liquor is transferred to pressurized tanks, and at least one liquor is expanded corresponding to a...
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7368039 |
Distiller employing cyclical evaporation-surface wetting
A distillation unit ( 10 ) employs a rotary heat exchanger ( 32 ) forming a multiplicity of evaporation chambers ( 56 ) into which a liquid to be purified is sprayed for evaporation. Spray arms (...
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7150320 |
Water treatment method for heavy oil production
A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. If necessary, the pH is then...
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6966974 |
Process for evaporating a solution and an evaporator for use in the process
The invention relates to a method for evaporating a solution and an evaporator applied to it. The evaporator ( 1 ) has parallel plate heat exchanger elements ( 3 ) fitted inside a jacket ( 2 ),...
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6906234 |
Continuous method and heat pump device for enriching liquid low-concentrated reaction mixtures
A continuous method and a heat pump device for enrichment of low-concentrated reaction mixtures resulting from the production of cycloalkanedienes by means of catalytic metathesis of cyclic...
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6846390 |
Methods for using hydrophobic liquid to compress steam
Methods for using a hydrophobic liquid, such as mineral oil, to compress steam include using a compressor to compress a mixture of steam and the hydrophobic liquid. One embodiment includes the...
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6689251 |
Cycled-concentration distiller
A distiller ( 10 ) that employs a rotary heat exchanger ( 32 ) introduces water to be evaporated into evaporation chambers ( 56 ). During most of its operation, it collects the water that has...
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6638398 |
Methods for the evaporation of an aqueous solution containing ammonia
A method including evaporating aqueous solutions containing ammonia, adding an acid to the evaporated vapor flow to form an ammonium salt, and condensing the vapor flow to form a liquid containing...
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6551466 |
Multiple effect distillation process with reduced fouling
A method and apparatus for removing a contaminant from a fluid feed stream containing the contaminant. The method includes the steps of providing a feed stream and heating it in a first step to at...
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6482297 |
Method for distilling ammonia
The present invention relates to an improved process for distilling ammonia from a mixture, more particular from a mixture resulting from the reaction between aminonitrile and water (which reaction...
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6436242 |
Device and method for distilling water
A water distiller has a sub-atmospheric boiler having a non-recirculating brine section, an input, a brine output and a vapor output. The input is for water to be distilled, the brine output for...
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6402897 |
Apparatus for distilling, heating and storing liquid
A combination liquid distillation unit and heater, where the distilled liquid is heated to an elevated temperature to effect distillation, and then stored and maintained at an elevated temperature...
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6375806 |
Desiccant reconcentration with control of pollutant gases and vapors
Unlike standard atmospheric glycol reconcentration units with reboilers, which release into the atmosphere column overheads containing water vapor, VOCs (volatile organic compounds), H 2 S...
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6365005 |
Apparatus and method for vapor compression distillation
An improved design of a vapor compression distiller which makes use of a rapid, highly turbulent flow through the heat-of-evaporation recovery, or primary, heat exchanger. The distiller may also...
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6355145 |
Distillation process with reduced fouling
A method for removing a contaminant from a fluid feed stream containing the contaminant. The method includes the steps of providing a feed stream and heating it in a first step to at least...
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6280578 |
Operation process of a pumping-ejection stand for distilling liquid products
Essence of the invention is a: a liquid, whose saturated vapour pressure is not less than the pressure at the top of a rectification column, is delivered into the nozzle of a liquid-gas jet...
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6254735 |
Process for separating medium boiling substances from a mixture of low, medium and high boiling substances
A process for separating a fraction containing low and middle boilers from a mixture of low, middle and high boilers, which involves treating the mixture in a column with low-boiler vapor in the...
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6217711 |
Method of treating condensates
A method of treating cellulose pulp mill condensates having an MeOH content using an evaporator and a steam stripper having a reboiler, comprising: (a) Collecting a feed liquor stream having at...
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5935388 |
Distillation plant with a heat pump
A distillation plant includes a heat pump whose working fluid is compressed by a vapor jet compressor. A collection location for a liquid is arranged in the stripper part of a distillation column...
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5897749 |
Continuous distillative separation of liquid mixtures which contain (meth) acrylic acid as the main component
Liquid mixtures which contain (meth)acrylic acid as the main component are continuously separated in a distillation apparatus which comprises a still, a condenser and a connection between still and...
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5858177 |
Process and apparatus for vapor compression distillation using plate and frame heat exchanger
An improved process and apparatus for vapor compression distillation is provided comprising a heat exchanger, a vapor compressor, and a liquid-vapor separator. The heat exchanger is preferably of...
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5770020 |
Distillation apparatus
The invention relates to a distillation apparatus (1) which is suitable in particular for the distillation of sea water into fresh water. The apparatus includes a plurality of flat, bag-like...
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5645694 |
Process and apparatus for vapor compression distillation
An improved vapor compression distillation process and apparatus are provided having a container with a substantially horizontal longitudinal center axis, two opposing end plates closing each end...
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5597453 |
Apparatus and method for vapor compression distillation device
A vapor compression distillation/product concentration device includes an evaporator/condenser core, with alternating boiling and condensing chambers with edge manifolds such that substantially the...
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5587054 |
Vapor compression distillation system
A vapor compression distillation system including a boiler/condenser assembly wherein a portion of the condensate is redirected back to the condenser inlet to extract superheat from the compressed...
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5565070 |
Solvent vapor sucking method and solvent recovering apparatus
A method for recovering solvent vapor in a manner which requires less power using an apparatus which is smaller in size, has a longer life, and is capable of being operated without reducing...
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5512142 |
Process and device for purifying organically polluted waste water
A process and device for purifying organically polluted waste water utilizing a primary system and a closed secondary system. The primary system includes a first heat exchanger, a second heat...
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5409576 |
Rotating evaporator device for the distillation or concentration of liquids
A rotating evaporator device is disclosed for the distillation or concentration of liquids. The rotating evaporator device of the present invention utilizes a multiplicity of pairs of disks wherein...
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5386075 |
Process for separating ethylbenzene and styrene by distillation
A process for separating ethylbenzene and styrene by distillation is described. The process provides the advantages of a vapor compression/heat pump system, and is designed in such a manner that...
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5340443 |
Distillation apparatus with paired membrane units
The invention relates to a distillation apparatus including a housing (1) a blower (2), preheat exchangers (7) and (8) and an evaporative condenser (25) comprising pairs (13) of membranes. One pair...
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5300197 |
Distillation apparatus with porous membrane and heat pump
A distillation apparatus includes a distillation unit for distilling feed water. The distillation unit includes an evaporation part, a condensation part and a hydrophobic porous membrane interposed...
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5294304 |
Process for the recovery of absolute ethanol by vapor compression extractive distillation
This invention relates to a process for the production of absolute alcohol from aqueous alcohol, whereby saving of energy to a greater extent is rendered possible in a more simple process, as...
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5252187 |
Method of recovering solvent from mother liquor containing non-volatile matters by heat pump system
A method of recovering a solvent from a mother liquor in a system in which the mother liquor also contains non-volatile matter, volatile solute and volatile solvent, and the solute concentration is...
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5242550 |
Process for the separation of butanes and butenes by extractive distillation
For the separation of butanes and butenes by extractive distillation, a charge mainly containing butanes and butenes is contacted in an extractive distillation column under pressure with a polar...
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5232085 |
Distillation system with a hydrophobic porous membrane
A distillation system has a degassing tank, a distiller for generating vapor of raw water taken from the degassing tank, a heater for heating the vapor from the distiller to convert the vapor into...
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5232557 |
Heat transfer plates evaporation and condensation apparatus
In a plate heat exchanger for evaporation of a liquid by means of a heat emitting vapor every second plate interspace forms an evaporation passage (28) and the rest of the plate interspaces form...
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5221439 |
Orbital tube evaporator with improved heat transfer
An orbital evaporator has a vertical heat transfer tube or tubes mounted in a container driven in an orbital motion. A stiff whip rod is freely movable within the tube. Its lower end rests on a...
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5169502 |
Installation for processing liquids
An installation for processing liquids having at least one vaporizer used for the process liquid, a condenser arranged downstream from this vaporizer, and a vacuum pump. Additionally, a gas-ring...
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5156747 |
Separation of liquids with different boiling points with nebulizing chamber
Small quantities of one or more liquids having a high boiling point dispersed with a large quantity of one or more immiscible liquids having a lower boiling point are separated in a rapid and...
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5139620 |
Dimple plate horizontal evaporator effects and method of use
Evaporation of saline water in a desalinization process, or evaporation of other types of liquid such as black liquor from paper pulp processing, is accomplished utilizing a multiple effect...
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5124004 |
Distillation process for ethanol
A method of distillation employing a heat pump (which may be driven by a compressor) using a vapor stream from within the distillation system as a heat source and a liquid stream from within the...
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5108548 |
Low pressure distillation apparatus
A low pressure distillation apparatus in which evaporation takes place at sub-atmospheric pressures. An evaporation chamber has a feed liquid inlet port, a concentrated liquid outlet port, and a...
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5076895 |
Process and apparatus for recovering clean water and solids from aqueous solids using mechanical vapor recompression evaporators
Process and apparatus for recovering clean water and solids from aqueous solids are disclosed. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing...
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5035776 |
Low energy extractive distillation process for producing anhydrous ethanol
A thermally-integrated extractive distillation process for recovering anhydrous ethanol from fermentation or synthetic feedstocks has a distillation train of four columns. Two columns are...
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4992143 |
Continuous process for the separation of a partially water soluble component from a slurry
A continuous multistage process for separating a partially water soluble organic component from a slurry containing an insoluble solid, a partially water soluble organic component and optionally...
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4985122 |
Vacuum distillation apparatus and method with pretreatment
Method and apparatus for separating volatile contaminants from a liquid to be continuously distilled. A continuous still comprises evaporator (1) having a heating coil (2), and condensor coil (6),...
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4978429 |
Apparatus including its own combination manifold/support assembly for producing a concentrate and a distillate
An apparatus especially suitable for distilling water is disclosed. This apparatus, as disclosed, includes first and second separate and distinct groups of adjacent, confronting plate members, each...
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4964995 |
Supercritical separation process for complex organic mixtures
A process is disclosed for separating low molecular weight components from complex aqueous organic mixtures. The process includes preparing a separation solution of supercritical carbon dioxide...
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4954223 |
Distillation apparatus
A distillation apparatus including a pair of vertical lower vessels each open at its upper end, and a pair of elongate upper vessels each having an open lower end, slidably mounted in a respective...
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4863567 |
Fluid distillation apparatus
The invention is a fluid distillation apparatus (10) which, in its preferred embodiment, includes a cylindrical portion (12) which mates with an end wall (14) and a bell portion (16) to form an...
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