| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423232000 | Utilizing carbonate as reactant | 14 |
| 20080226527 | Earning carbon credits by using aquaculture to sequester carbon dioxide - A method of earning carbon credits includes sequestering carbon dioxide by cultivating aquatic organisms that have carbon-containing shells and obtaining carbon credits based on the sequestered carbon dioxide. | 09-18-2008 |
| 20090081096 | Method and means for capture and long-term sequestration of carbon dioxide - The invention teaches a practical method of recovering CO | 03-26-2009 |
| 20090202410 | Capture and Sequestration of Carbon Dioxide in Flue Gases - There is provided a process for the capture and sequestration of carbon dioxide that would otherwise enter the atmosphere and contribute to global warming and other problems. CO | 08-13-2009 |
| 20090214408 | PREPARATION AND USE OF CATIONIC HALIDES, SEQUESTRATION OF CARBON DIOXIDE - A process is described for sequestering carbon dioxide. In the process, a carbonate, oxide or hydroxide of a divalent cation is reacted with the carbon dioxide and water and/or with a species resulting from the dissolution of the carbon dioxide in water, to form a hydrogen carbonate of the divalent cation. The carbonate, oxide or hydroxide of the divalent cation has a low solubility in water. The divalent cation of the hydrogen carbonate of the divalent cation thus formed is exchanged for a monovalent cation using an ion exchange medium, to produce a solution of a hydrogen carbonate of the monovalent cation. | 08-27-2009 |
| 20100172813 | DEVICE AND METHOD FOR REDUCING CO2-EMISSIONS FROM THE WASTE GASES OF COMBUSTION PLANTS - A method for separating carbon dioxide from a flue gas using a membrane (membrane module) is characterized in that the flue gas is at temperatures above the condensation point of the water vapor before entering the membrane separation stage. In this way, condensation of any potentially entrained water vapor out of the flue gas is avoided, so as to consistently prevent clogging of the membrane pores. The high temperatures can be achieved in different ways. The temperature of the flue gas can easily be increased to the necessary temperatures by way of an upstream heat exchanger or a burner. A compressor, which is connected upstream of the membrane module and also advantageously increases the CO | 07-08-2010 |
| 20100196235 | PROCESS FOR SEQUESTRATION OF CARBON DIOXIDE BY MINERAL CARBONATION - The invention provides a process for sequestration of carbon dioxide by mineral carbonation comprising the following steps: (a) converting a magnesium or calcium sheet silicate hydroxide into a magnesium or calcium ortho- or chain silicate by bringing the silicate hydroxide in direct or indirect heat-exchange contact with hot flue gas to obtain the silicate, silica, water and cooled flue gas; (b) contacting the silicate obtained in step (a) with carbon dioxide to convert the silicate into magnesium or calcium carbonate and silica. | 08-05-2010 |
| 20100254869 | PROCESS FOR REMOVAL OF CARBON DIOXIDE FROM COMBUSTION GASES - A device for purifying smoke gases comprising a cylindrical container with a gas inlet at its bottom region and a gas exit for purified gas in its top region, as well as an inlet for washing liquid and an exit for spent washing liquid, wherein the container internally does not include any current baffles so that the gas and liquid can rotate freely, and wherein the container internally has a stirring device of perforated plates, e.g. netting discs, for optimal mixing of gas and fluid. It is also disclosed a process for purifying such smoke gases, wherein such a purification device is used. | 10-07-2010 |
| 20110059000 | METHODS OF SEQUESTERING CO2 - Methods of sequestering carbon dioxide (CO | 03-10-2011 |
| 20110070137 | METHOD OF MANAGING CARBON DIOXIDE EMISSIONS - Processes are disclosed for managing the reduction of carbon dioxide emissions by a process of mining, acquiring water, capturing carbon and disposing of water containing bicarbonates. A number of process configurations of accelerated weathering of carbonate mineral-containing materials (AWC) reactors are disclosed. | 03-24-2011 |
| 20110243822 | FLUE GAS CLEAN UP METHODS - The present invention relates to a method for potassium or nitrogen based fertilizer production from the byproducts of flue gas processing. Further, the present invention relates to a method for isolating fertilizer precursors from a stream of flue gas. The method including a dry sorbent operation, wet scrubbing operation and an oxidization step to remove air pollutants, a carbon dioxide capture step and a sodium bicarbonate precipitation step. The steps involved in the removal of air pollutants are used to isolate precursors for the production of fertilizer. Additionally, the present invention relates to a method for the removal of carbon dioxide from a flue gas stream. | 10-06-2011 |
| 20130004394 | Catalytic CO2 Desorption on the Interface between NaHCO3 and Multifunctional Nanoporous TiO(OH)2 | 01-03-2013 |
| 20130164204 | SOLVENT COMPOSITION FOR CARBON DIOXIDE RECOVERY - The present disclosure provides for a solvent composition for recovery of carbon dioxide from gaseous mixture, comprising diethanolamine, piperazine or its derivative, alkali salt, optionally along with cupric carbonate. The disclosure relates to improved solvent formulations that utilizes less energy and increased carbon capture efficiency. The disclosure also addresses the high CO | 06-27-2013 |
| 20130280152 | Method and Apparatus for the Removal of Carbon Dioxide from a Gas Stream - The invention provides methods and apparatuses for removing carbon dioxide from a gas stream. In particular, the invention provides methods and apparatuses for absorbing carbon dioxide from a coal-fired boiler flue gas stream using an absorbing solution and for regeneration of an alkaline component used in the absorbing solution. In one embodiment, the invention provides a method for removing carbon dioxide from a gas stream by contacting a gas stream containing carbon dioxide with an alkaline liquid stream; absorbing at least a portion of the carbon dioxide into the alkaline liquid stream to produce absorbed carbon dioxide; and catalyzing a reaction of the absorbed carbon dioxide to a form of carbonate. In other embodiments, the invention provides a method for producing salable calcium carbonate, calcium chloride, and carbon dioxide gas. | 10-24-2013 |
| 423233000 | And regenerating reactant by incoming actifying gas | 1 |
| 20140178280 | PROCESS FOR DESULPHURIZATION OF GASES - A wet process for the desulphurization of hydrogen sulphide laden gas, including absorption of hydrogen sulphide in aqueous medium by a carbonate salt, oxidation of hydrogenosulphide into elemental sulphur in the presence of a vanadium compound with concomitant reduction of said vanadium compound, re-oxidation of said vanadium compound in the presence of the couple quinone-2-sulfonic acid/hydroquinone-2-sulfonic acid or quinone-2-phosphoric acid/hydroquinone-2-phosphoric acid or a salt thereof, the substituted hydroquinone catalyst being re-oxidized in the presence of oxygen. | 06-26-2014 |
