| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210737000 | Including temperature change | 13 |
| 20090294377 | Method for Removing Dissolved Solids from Aqueous Waste Streams - A method for removing dissolved solids from a waste stream, such as that produced in flue gas scrubbing, through an evaporation-crystallization process operated at relatively low temperature. A waste stream is directed into an evaporator and heated at a temperature of less than 60° C. at a pressure below atmospheric pressure. The waste stream is concentrated through the evaporation process and forms a slurry stream having crystallized solids. At the low temperature of evaporation, the solids crystallize at substantially lower temperature and the solution has a substantially lower boiling point elevation than at atmospheric pressure. The slurry stream is directed to a solid-liquid separator where the crystallized solids in the slurry stream are separated, producing a solid cake and mother liquor. | 12-03-2009 |
| 20100176064 | Back Pressure-Matched, Integrated, Environmental-Remediation Apparatus and Method - Production brines are used to scrub a horizontal stack receiving exhaust from an energy source, controlling, reducing, or both noxious chemicals. Mutual remediation of flows from petroleous production cool and scrub exhausts from flares burning waste hydrocarbons, heaters lowering viscosity of crude oil, engines driving oil pumps or natural gas compressors, and the like. Resulting evaporation of production brines results in distilled water, more concentrated brines to reduce hauling, or, optionally, dehydrated dry waste minerals from the brines. Year-round operation of brine evaporation ponds is facilitated, and may be another source of process pre-heating. | 07-15-2010 |
| 20110108491 | DESALINATION USING SUPERCRITICAL WATER AND SPIRAL SEPARATION - The present application relates to systems and methods for the desalination of water. The systems and methods receive source water containing particles therein from a source of water such as, for example, the ocean. The source water may be pre-treated to remove suspensions and/or sub-micron organics in the source water. The source water is used to generate supercritical water having a pressure and temperature above a critical pressure and a critical temperature, respectively. The supercritical water is run through a spiral separator to generate effluent water and waste water containing aggregated particles therein. Energy may be recovered from the effluent water and used to generate additional supercritical water. | 05-12-2011 |
| 20120125864 | METHODS FOR REDUCING SCALE FORMATION ON AND REMOVING DEPOSITS FROM HEAT TRANSFER SURFACES - Disclosed are methods of operating steam generators, particularly evaporators, in hard water environments characterized by high Si and Mg content in which the pH | 05-24-2012 |
| 20120205319 | Apparatus and Method for Discharge of Treated Sewage Sludge from Bins - Treated sewage sludge containing a flocculant is discharged from bottom of a bin, with the discharge being facilitated by heating sloped walls of the bin an amount sufficient to increase the ability of the sludge to slide along sloped bin walls. The flocculant in the sludge includes a polymeric material which, when heated to a sufficient temperature effects a phase separation of the polymeric material from water, decreasing the viscosity of the polymeric material, facilitating its sliding along the sloped walls. The heating of the polymeric material in the flocculant enables the sloped walls of the bin to be flatter than they would otherwise be, allowing an enhanced volume of sludge to be present in the bin. A programmable logic computer controls the provision of heat to the sloped walls, as well as controlling an openable closure at the bottom of the bin and/or controlling the rotation of a displacement device in the bin. | 08-16-2012 |
| 20120205320 | DESALINATION USING SUPERCRITICAL WATER AND SPIRAL SEPARATION - The present application relates to systems and methods for the desalination of water. The systems and methods receive source water containing particles therein from a source of water such as, for example, the ocean. The source water may be pre-treated to remove suspensions and/or sub-micron organics in the source water. The source water is used to generate supercritical water having a pressure and temperature above a critical pressure and a critical temperature, respectively. The supercritical water is run through a spiral separator to generate effluent water and waste water containing aggregated particles therein. Energy may be recovered from the effluent water and used to generate additional supercritical water. | 08-16-2012 |
| 20130126439 | SYSTEM AND METHOD OF SEPARATING PRODUCT FROM SLUDGE IN STORAGE TANKS - A system and method of removing product from sludge at a bottom of a storage tank that includes introducing a liquid to the tank, heating and agitating the liquid to separate the product from the sludge, and then removing the separated product and removing the introduced liquid. | 05-23-2013 |
| 20130313202 | Process for the Purification of Iron Salt Solutions - A process is provided for removing metal salt co-constituents from an iron-containing solution comprising: (a) decreasing the free acidity of the solution to produce a slurry; (b) optionally heating the solution or the slurry to a temperature at least 30° C.; (c) optionally aging the slurry; (d) adding one or more cationic polyelectrolyte flocculants to the slurry; and (e) separating a solid-containing portion from a liquid portion of the slurry. | 11-28-2013 |
| 20140190899 | DEEP SEA COLLECTION OF SOLID MATERIALS FROM GEOTHERMAL FLUID - An apparatus for collecting solid materials from a fluid is provided. The apparatus includes a conduit configured to allow the fluid to flow therethrough. The apparatus further includes a mesh extending across the conduit. The mesh is configured to allow the fluid to flow therethrough and to allow a solid material to precipitate out of the fluid onto the mesh. The apparatus further includes a support structure configured to support the mesh in position across the conduit | 07-10-2014 |
| 20150122744 | METHOD FOR PURIFICATION OF SPENT SULFURIC ACID FROM TITANIUM DIOXIDE RUTILE INDUSTRY - A method for the purification of spent sulfuric acid and particularly the purification of spent acid, from titanium dioxide rutile manufacture through a chloride route, is provided. In the chloride route of titanium dioxide manufacture, sulfuric acid is used to clean the un-reacted gaseous flow coming out of the oxidizer, so the spent acid mainly contains un-reacted Ti | 05-07-2015 |
| 20150345274 | Subsea Processing of Well Fluids - A towable unit for subsea processing of well fluids comprises a pipeline bundle extending between, and capable of acting in tension between, a first towhead at an upstream end of the bundle and a second towhead at a downstream end of the bundle. At least one of the towheads has an on-board processing facility for processing the well fluids, which facility effects at least separation of water phases that are present in the well fluids. | 12-03-2015 |
| 20150345275 | Subsea Processing of Well Fluids - A wax control element for subsea processing of well fluids in a wellstream comprises a bundle of flowlines within an elongate tensile structure. That structure defines inlet and outlet ends and has cooling and heating provisions that act on the flowlines, in use, to promote deposition of wax in the flowlines and subsequent entrainment of wax in the wellstream. | 12-03-2015 |
| 20160002815 | METHOD FOR REMOVING RARE EARTH IMPURITIES FROM NICKEL-ELECTROPLATING SOLUTION - A method for removing rare earth impurities from a nickel-electroplating solution by keeping a nickel-electroplating solution containing rare earth impurities and having pH of 4.0-5.1 at 60° C. or higher for a certain period of time, and then removing precipitate generated by the heating from the nickel-electroplating solution by sedimentation and/or filtration. | 01-07-2016 |
