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7594981 |
Method for concentrating water-soluble organic material
A method for concentrating a water-soluble organic material wherein a mixture of the water-soluble organic material with water is distilled in a distillation column ( 11 ), and the fraction from...
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7572352 |
Method and plant for desalinating salt-containing water
Salt-containing water is desalinated by first passing salt-containing water through a heat exchanger disposed in a basin containing solar-heated brine formed by several layers of water lying one...
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7566351 |
Process for producing electrical power and potable water from biomass
The invention comprises, in one form thereof, a technique which allows biomass to be utilized as a fuel for the co-production of electrical power and potable water in a most efficient manner....
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7556717 |
Method and device for extractive distillation
A process for fractionating a starting mixture of two or more components by extractive distillation using a selective solvent in a dividing wall column aligned in the longitudinal direction of the...
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7524405 |
Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent
The invention relates to a process for preparing isocyanates by reaction of amines with phosgene in the presence of inert organic solvents in a reactor and subsequent work-up of the reaction...
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7507273 |
Chromatographic rectification of ethanol
A scalable technology for purifying ethanol, wherein the vaporization of ethanol is coupled with a chromatographic rectification process comprising feeding a vaporized ethanol/water mix onto a...
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7504005 |
Fluid distillation apparatus having improved efficiency
A condensing chamber and a heating chamber are arranged in an enclosure. Liquid is fed into the condensing chamber where it is pre-heated. The pre-heated liquid flows to the heating chamber where...
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7494584 |
Energy efficient method for exothermic reactions
An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at...
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7381310 |
Installation used to obtain salt-free sea water at a low temperature with continuous operation and enthalpy recovery
A sea water desalination installation that employs an evaporation-condensation system which operates continuously at a low temperature and which enables the recovery of energy released. The...
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7368040 |
Apparatus for and method of heating fluid and distilling fluid
A method and an apparatus for heating fluid with a gas heater and distilling fluid with the pilot light of the gas heater are disclosed. The apparatus for heating fluid and distilling fluid...
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7347918 |
Energy efficient evaporation system
An evaporation system uses the weight of condensed liquid as an energy source. An inlet feed is introduced into an enclosure through an inlet. The inlet feed is vaporized in an evaporation region...
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7337828 |
Heat transfer using a heat driven loop
A heat transfer fluid medium ( 25 ) within the closed system is arranged to boil to form a vapor in the evaporation section ( 12 ) and such that release of heat from the condensation section ( 11 )...
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7320745 |
Energy efficient method for exothermic reactions
An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at...
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7182840 |
Method and device for exploiting heat resulting from the production of 1,2-dichloroethane
The invention relates to a method and a device for the optimal use of reaction heat resulting from the production of 1,2-dichloroethane from ethene and chlorine. The aim of the invention is...
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7048833 |
Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins
A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from...
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6805774 |
Apparatus and process for purifying a liquid by thermoelectric peltier means
A continuous process and apparatus is provided for treating an impure liquid to produce purified liquid. The process includes electrically activating a thermoelectric module ( 24 ) to provide a...
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6793777 |
Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid
The invention relates to a method for separating and purifying an aqueous mixture that mainly consists of acetic acid, formic acid and high-boiling substances by extraction with a solvent in a...
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6790313 |
Method of cleaning sulfide contaminated condensates
A method to remove sulfides and other volatile contaminants from liquor vapor condensate in a pulp manufacturing process, where the mentioned liquor vapor condensate is fed into a stripper, which...
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6735979 |
Process for pretreating a natural gas containing acid gases
A process for pretreating a very acid natural gas containing a substantial amount of hydrogen sulfide (H 2 S), possibly combined with carbon dioxide (CO 2 ), includes at least a stage wherein the...
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6699369 |
Apparatus and method for thermal desalination based on pressurized formation and evaporation of droplets
A method for removing dissolved solids, particularly salts, from water. An apparatus for performing the inventive method is disclosed. The aqueous solution to be treated, for example sea water, is...
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6635150 |
Method for distilling a fluid with horizontal vapor transfer into a condensation zone and modular device for implementing said method
A method for distilling a fluid which is useful, for instance, in eliminating salt from brackish and/or sea water includes percolating films on plates with multiple effects having several...
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6565715 |
Land-based desalination using buoyant hydrate
Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Salt water is pumped to a desalination installation and down to the base of a desalination...
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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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6508916 |
Process for recovering processing liquids
A process for recovering processing liquids such as gas-treating liquids wherein a feed mixture containing the processing liquid, water, and optionally additional components that are more volatile...
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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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6383342 |
Cluster rule compliance with reduced steam consumption
A method and system for handling foul condensate containing Hazardous Air Pollutants (HAPs) in a cellulose pulp mill has enhanced energy efficiency and lower cooling water usage, while complying...
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6375805 |
Apparatus and process for purifying a liquid
An improved continuous process and apparatus for treating an impure liquid to produce purified liquid, particularly, water, the process having an electrically activating a thermoelectric module to...
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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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6261412 |
Regenerative heat recovery for high temperature condensate stripping plants
The EPA Cluster Rules for cellulose pulp mills are complied with by first collecting foul condensate including hazardous air pollutants (HAPs), such as methanol, at a temperature of between about...
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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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6120651 |
Method for removing water from an aqueous fluid mixture
A method permits concentration of a water-miscible organic liquid in a mixture of such liquid and water, with recovery of a desired concentrate of the water-miscible organic liquid and water, and a...
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6113744 |
Water distillation apparatus
A water distillation apparatus includes a degasification chamber having a top and a bottom. A liquid inlet is positioned adjacent to the bottom. A gas outlet is positioned adjacent to the top. A...
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6106673 |
Method for separating components of a fermentation process byproduct containing oil bound with fibers
A process and system are provided for the separation of a fermentation process byproduct into its constituent components and for the subsequent recovery of those constituent components. The process...
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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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5925223 |
Process for improving thermal efficiency while producing power and desalinating water
A process and apparatus for improving the thermal efficiency of a steam turbine power generating plant while simultaneously desalinating seawater or brine and purifying water which contains...
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5916422 |
Method of purifying acetic acid
A method for purifying acetic acid containing at least one component selected from the group consisting of unsaturated compounds and carbonyl compounds as an impurity involves the step of purifying...
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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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5865957 |
Method for producing butyraldehydes
A method for producing butyraldehydes, by separating and purifying mixed butyraldehyde products formed by hydroformylation of propylene, into n-butyraldehyde and isobutyraldehyde by using a...
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5830314 |
Cleaning condensates from multi-effect evaporator of cellulose pulp waste liquors
Volatile compounds, such as methanol, are separated from secondary condensates formed in multi-effect evaporation of waste liquor, such as black liquor, from cellulose pulp processes. The...
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5705036 |
Water distilling apparatus
A water distilling apparatus includes a preheat tank having an inlet and an outlet for storing water from a water source via the inlet, a boiling tank formed of a conductive casing connected to a...
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5695614 |
Method for processing waste liquids in particular industrial waste water having a high solids content
A method for processing waste liquids, having high solids content. The process includes the steps of spraying and evaporating the waste liquid together with a dry gas in a counterflow of dry gas...
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5600049 |
Process for depropanizing benzene
In the alkylation of benzene with propylene in a distillation column reactor to produce cumene the overheads from the distillation reactor are fed to a depropanizer where the unreacted benzene is...
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5597454 |
Process for producing urea
A urea production process combining lower pressure urea concentration and carbamate recovery steps into a single non-vacuum operation. Following high pressure stripping wherein a bulk of unreacted...
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5582690 |
Method of and means for water desalinization
Desalination of sea water is achieved using a solar pond that includes a halocline interposed between a convective upper wind mixed layer exposed to the ambient atmosphere, and a lower heat storage...
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5573645 |
Process and apparatus for the separation of aromatic hydrocarbons
A distillation process and apparatus for recovering high purity aromatic products from a mixed aromatic hydrocarbon feedstock containing benzene, toluene and xylene by use of distillation towers...
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5565068 |
Energy conservation during plural stage distillation
In the multistage distillation of a methyl tertiary butyl ether reaction product comprising methyl tertiary butyl ether, tertiary butyl alcohol, methanol, isobutylene and water, the methyl tertiary...
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5554264 |
Multiple reboiler system
To heat the circulating reboiler streams of multiple distillation columns a fired reboiler is provided for a first column requiring the most heat. A portion of the bottoms from the first column is...
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5389209 |
Production of high quality maple syrup
A process for making a light color maple syrup from a water-containing sap. In a first step, the sap is boiled under normal pressure to evaporate part of the water contained therein in the form of...
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5348623 |
Water heating and distilling apparatus
An automatic water heating and distilling apparatus is provided having a hot water reservoir, an evaporator tank, a condenser, a distilled water reservoir and a control mechanism. Water is boiled...
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