Class 95/264 - Steam is stripping gas

Subclass of Class 95 - Gas separation: processes
Definition: Process in which the stripping gas is steam.
No. of patents: 39
Last issue date: 09/30/2008

Number	Title	Issue Date
7429288	Spinning impingement multiphase contacting device A spinning impingement multiphase contacting device and method for heat or mass transfer are disclosed. A first fluid, from which the transfer is to occur, is caused to impinge and be entrained in a spinning permeable element, creating a highly dispersed phase. The ...	09/30/2008
7326283	Spinning impingement multiphase contacting device A spinning impingement multiphase contacting device and method for heat or mass transfer are disclosed. A first fluid, from which the transfer is to occur, is caused to impinge and be entrained in a spinning permeable element, creating a highly dispersed phase. The ...	02/05/2008
7235158	Perforated tray column without downcomer A perforated tray without downcomer having only a small deviation between the opening ratio based on the diameter of a column and the actual opening ratio and a perforated tray column without downcomer formed by disposing such perforated trays without downcomer are ...	06/26/2007
7074259	Method and apparatus for thermal degassing In a process for thermally degassing the water in a steam system, in particular a heat recovery steam generator, which steam system preferably includes at least one steam drum, at least one economizer connected upstream of it, and at least one evaporator, economic, ...	07/11/2006
6576132	Quench water pretreat process A process for pretreating a oily/water stream for closed loop dilution steam production within an ethylene plant using countercurrent multi-stage extraction to remove both free and dissolved organic solutes from in-situ (net) quench water with an organic ...	06/10/2003
6364939	Method for reducing the formation of foam during the treatment of a dispersion or a liquid with water vapour A process for reducing the foam formation when a dispersion or liquid is treated with steam by a) introduction of steam into the lower region of a column and simultaneous feed of a medium at the top of the column, the steam ascending to the top of the col...	04/02/2002
6344588	Process for the preparation of urea In the present process for the preparation of urea, an off-gas stream released during the synthesis of melamine in a high-pressure melamine process which consists predominantly of ammonia and carbon dioxide, is introduced into at least one high-pressure s...	02/05/2002
6270729	Apparatus and process for the intensive degassing of PVC suspensions and dispersions An apparatus for the intensive degassing of polyvinyl chloride-containing dispersions comprising a polymerization reactor (1), a cooling device (2), and a vacuum unit (3), where the polymerization reactor (1) contains a steam inlet (4) in the lower half, ...	08/07/2001
6056806	Apparatus for the heating-up and degassing of water An apparatus for the heating-up and degassing of make-up water by means of steam in a power station plant. The apparatus includes a steam condenser having a casing wall and a second casing wall mounted on the steam condenser. The casing walls are spaced a...	05/02/2000
6015450	Reducing methanol emissions from a syngas unit Methanol emissions in the CO2 vent from a synthesis gas unit in an ammonia or hydrogen plant are reduced by contacting raw synthesis gas from a low temperature shift converter with recycled stripped condensate to absorb methanol. The synthesis ...	01/18/2000
5439509	Stripping method and apparatus Solute gas-rich absorbing media formed in scrubbing a solute gas from an off-gas stream prior to discharge of the same are regenerated to solute gas-lean absorbing medium for recycle to the scrubbing operation. Hot solute gas-rich absorbing media is forme...	08/08/1995
5389126	Process for removal of components from liquids in batch mode A process for removing components from liquid is disclosed. This process involves batchwise gas-stripping followed by membrane separation treatment of the stripping gas. The stripping step can be carried out by circulating the batch repeatedly around the ...	02/14/1995
5209763	Method of boosting the efficiency of removing noncondensable gases from vapors A method is provided for high-efficiency removal of noncondensable gases (NCG) from geothermal steam. The present method is directed to an improvement for the treatment of geothermal steam to remove most of the residual NCG that would otherwise still be p...	05/11/1993
5124033	Ultrapure water producing system This disclosure relates to an ultrapure water producing system having a primary ultrapure water system including a pretreatment process into which raw water is fed, and a primary ultrapure water device connected to the outlet of the pretreatment process. ...	06/23/1992
4759315	Deaerator tray for a steam boiler feedwater heater system A tray stack for a boiler feedwater deaerator is provided with a plurality of horizontally spaced troughs arranged in vertically spaced and staggered tiers. Each of the troughs has a generally V-shaped bottom and a pair of outwardly-extending, inclined wa...	07/26/1988
4758654	Method for treating resin in a purge vessel A method for removing unpolymerized gaseous monomers from a solid olefin polymer in a single purge vessel while deactivating Ziegler-Natta catalysts and organometallic catalyst residues present in said solid olefin polymer by utilizing a two diameter purg...	07/19/1988
4715869	Degassing of liquids A rotary device comprising a rotor which comprises (i) a first annular compartment in which is disposed a permeable element, and (ii) a second annular compartment and which is adapted such that a liquid to be degassed flows radially outwards, in counter-c...	12/29/1987
4680092	Process for degassing, dehydrating and precut separation in straight-run distillation of crude fatty acids The invention concerns a process for the degassing, dehydrating and lower boiling component separation during straight-run distillation of crude fatty acids. The crude fatty acids are degassed in the degassing stage at such temperatures and pressures in c...	07/14/1987
4650502	Pressurized gaseous aqueous ammonia separation system Systems and methods are provided for separating a first pressurized gaseous aqueous ammonia stream into a second gaseous ammonia stream having a higher ammonia concentration than the first stream and a third gaseous aqueous ammonia stream of reduced press...	03/17/1987
4632676	Method and device for stripping ammoniacal water countercurrently with steam In a method of stripping ammonia from water using steam in countercurrent flow, wherein steam is supplied over a sump of a stripper and directed along with the stripped gas component from a head of the stripper, the method comprising keeping the counterpr...	12/30/1986
4547293	Process for removal of ammonia and acid gases from contaminated waters Contaminating basic gases, i.e., ammonia, and acid gases, e.g., carbon dioxide, are removed from process waters or waste waters in a combined extraction and stripping process. Ammonia in the form of ammonium ion is extracted by an immiscible organic phase...	10/15/1985
4537605	Removal of hydrogen sulfide from elemental sulfur by a countercurrent wet steam process Hydrogen sulfide is removed from molten petroleum byproduct sulfur to levels below 1 ppm by weight by contacting the sulfur in countercurrent with wet steam. Preferably, the wet steam is sour water steam and the contacting is carried out in a packed bed c...	08/27/1985
4444571	Energy-efficient process for the stripping of gases from liquids A process is disclosed for the recovery and reuse of the heat contained in the gas/vapor overhead mixture from a stripping column in which a noncondensable gas is stripped from a liquid solution by contacting the solution with a hot vapor such as steam. T...	04/24/1984
4352680	Process and/or facility for driving off dissolved, corrosive gaseous constituents from watery solutions A process for separating dissolved corrosive gases from aqueous solutions, e.g., scrubbing waters from a coking operation, is disclosed. The process involves directly contacting the solution with a hot liquid heat exchange medium, such as drops of heating...	10/05/1982
4341640	Urea hydrolysis The process for the purification of urea containing waste streams is improved by conducting the purification in a vessel having at least one treating zone wherein the urea containing waste stream is both hydrolyzed and stripped of the products of the urea...	07/27/1982
4334102	Removing liquid hydrocarbons from polyether solvents A method of removing normally liquid hydrocarbons from a polyether solvent such as dimethyl ether of polyethelene glycol by mixing the solution with an aqueous salt solution, removing at a low temperature an organic layer containing liquid hydrocarbons, h...	06/08/1982
4268280	Method of continuously degassing water A method of continuously degassing water in which the vapor phase components melted in the water are continuously degassed by heating the water and reducing the pressure of the water. An in-line heater is used to continuously mix saturated steam into wate...	05/19/1981
4263269	Removal of organic contaminants from aqueous hydrochloric acid Method of removing organic contaminants from aqueous hydrochloric acid comprising countercurrently contacting the aqueous acid containing the contaminants and steam at superatmospheric pressures, and recovering said aqueous acid substantially free from or...	04/21/1981
4248608	Process for purifying liquids and/or regenerating absorbent solutions The process for the purification of liquids and in particular the regeneration of spent absorbent solutions is essentially based on the use of a first preliminary regeneration zone to which the entire solution to be purified is delivered and the use of tw...	02/03/1981
4240808	Processing aqueous effluent liquors from degasification or gasification of coal The aqueous effluent liquors from gasification or de-gasification of coal are extracted with a water-insoluble solvent and the extract is processed to recover the solvent. The aqueous residue is treated to remove NH3 in a driving-off column. Th...	12/23/1980
4193776	Method for the purification of the process condensate from synthesis gases and hydrogen plant The object of the invention is a method for the purification of the process condensate from synthesis gases or hydrogen plant. The process condensate is purified from contaminations dissolved in it by stripping it with process steam before it is used in the ch...	03/18/1980
4184857	Stripping column and process for removal of volatile matter A stripping column for removing volatile matter from a slurry containing sedimentary solid matter and the volatile matter, comprising a plurality of trays each consisting of a plurality of tray segments, a baffle plate and a downcomer, each of the tray se...	01/22/1980
4163648	Process for separation of ammonia and carbon dioxide An improved process for the separate recovery of substantially pure ammonia and substantially pure carbon dioxide from mixtures containing ammonia and carbon dioxide, and possibly water, such as are obtained as by-products in the manufacture of melamine f...	08/07/1979
4162902	Removing phenols from waste water A process for removing phenols from waste water resulting from the gasification or carbonization of coal and containing CO2, H2 S and NH3, comprising mixing the waste water with a low-boiling organic solvent, separating th...	07/31/1979
4121913	Process feed and effluent treatment systems A liquid feed and effluent system to recover dissolved process gas (e.g. H2 S) from an effluent process liquid (e.g. water), which liquid may also contain dissolved solid components (e.g. soluble salts); the system heats the feed liquid with he...	10/24/1978
4095963	Stabilization of deodorized edible oils This invention relates to the stabilization of deodorized edible oils. In the process of the invention, edible oils are steam deodorized in the presence of a peroxide inhibiting amount of molybdenum metal or molybdenum oxide. It has been further found tha...	06/20/1978
4036865	Semicontinuous process for deodorizing oils A liquid feed stock containing oil is deodorized in a semicontinuous process wherein the feed stock, in a first evacuated chamber, undergoes heat exchange with a deodorized stock in a second evacuated chamber, said stocks being circulated in their respect...	07/19/1977
4017277	Direct contact water heating system and process A direct contact water heating system and process are disclosed which provide for the direct contact of hot flue gases with water-to-be-heated without the hot flue gases being washed or quenched prior to their contact with the water in such a manner that ...	04/12/1977
3972693	Process for the treatment of phenol-containing waste water from coal degassing or gasification processes Dissolved organic compounds in waste water resulting from coal degassing or gasification processes are removed by extraction with a solvent which is substantially water-immiscible, the solvent residues in the waste water are removed by inert gas scrubbing...	08/03/1976

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Class 95/264 - Steam is stripping gas