Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Application No. | Application Title | Issue Date |
| 20120034145 | TREATMENT METHOD AND TREATMENT FACILITIES OF EXHAUST GAS An object of the present invention is to provide a treatment method and a plant of an exhaust gas in which corrosion resistance of the exhaust gas treatment plant to a sulfuric acid mist after wet type desulfurization is increased. The treatment method of an exhaust gas... | 02/09/2012 |
| 20120009107 | SORBENT USE WITH OXYFUEL SOUR COMPRESSION Sulfur dioxide (SO2) is removed from carbon dioxide feed gas comprising SO2 as a contaminant by maintaining the carbon dioxide feed gas at an elevated pressure in contact with an alkaline sorbent for a period of time sufficient to react said alkali... | 01/12/2012 |
| 20120009106 | Integration of Catalytic CO2 Oxidation and Oxyfuel Sour Compression Sulfur dioxide (SO2) may be removed from carbon dioxide feed gas by contacting the carbon dioxide at an elevated temperature and an elevated pressure with a catalyst for oxidizing SO2, in the presence of oxygen (O2) to convert SO2 <... | 01/12/2012 |
| 20120003133 | Air Pollution Solution to the Problem of Opacity in Coal Fired Power Plant Stack Emissions A method of controlling air pollution arising from sulphur trioxide and or sulphuric acid in coal combustion gases, combustion gases passing through the demister region of a wet flue gas desulphurisation unit are exposed to a sulphide based reducing agent such as hydrog... | 01/05/2012 |
| 20110318245 | Flue-Gas Purification and Reclamation System and Method Thereof A flue-gas purification system includes a flue-gas cycling system, a reactor, an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase ... | 12/29/2011 |
| 20110300046 | METHOD FOR REMOVING IMPURITIES FROM GAS FLOWS COMPRISING OXYGEN A process for removing impurities, in particular oxides of sulphur (SOx) and/or oxides of nitrogen (NOx) from oxygen-containing gas streams by scrubbing with at least one washing agent is described. In order to achieve effective gas purification in... | 12/08/2011 |
| 20110229393 | METHODS FOR DEACIDIZING GASEOUS MIXTURES BY PHASE ENHANCED ABSORPTION An improved process for deacidizing a gaseous mixture using phase enhanced gas-liquid absorption is described. The process utilizes a multiphasic absorbent that absorbs an acid gas at increased rate and leads to reduced overall energy costs for the deacidizing operation... | 09/22/2011 |
| 20110223083 | SYSTEM AND METHOD FOR GENERATING A CARBON DIOXIDE STREAM A flue gas stream processing system includes a fuel reactor for combusting a fuel to generate a flue gas stream including water vapor, carbon monoxide and carbon dioxide. The system includes an oxidation catalyst downstream of the fuel reactor, the oxidation catalyst co... | 09/15/2011 |
| 20110195008 | DESULFURIZATION PROCESS The invention relates to a desulfurization process, wherein a gas mixture is subjected to a separation process to separate the acidic components of the gas, an acid gas containing carbon dioxide and sulfur compounds, in particular hydrogen sulfide, being formed in this ... | 08/11/2011 |
| 20110160470 | METHOD OF CONTROLLING THE PRODUCTION OF SILVER CHLORIDE ON A SILVER CATALYST IN THE PRODUCTION OF ALKYLENE OXIDES A plant and process for producing alkylene oxides to control the production of silver chloride on a high efficiency silver catalyst is disclosed and described. The process involves reacting an alkylene and an organic chloride gas phase promoter with oxygen over the high... | 06/30/2011 |
| 20110142740 | METHOD AND SYSTEM FOR TREATMENT OF MALODOROUS GASES EMANATING FROM A PULP MILL The method and system relate to reducing the content of hazardous chemicals when handling malodorous gases emanating from a pulp mill and before burning said malodorous gases in final incineration equipment in oxygen excess environment in order to oxidize the sulphur co... | 06/16/2011 |
| 20110135554 | SYSTEMS AND METHODS FOR REMOVING GASEOUS POLLUTANTS FROM A GAS STREAM Horizontal gas-liquid scrubbing systems and associated gas scrubbing methodologies are provided. In one embodiment, a horizontal duct scrubbing system includes a horizontally disposed housing having a waste gas inlet and a treated gas outlet, a liquid inlet manifold dis... | 06/09/2011 |
| 20110079364 | Process for Controlling Ammonia Loss A method of offsetting losses of ammonia from a pulping mill comprising cooking a lignocellulosic material in a cooking liquor, wherein cooking in the cooking liquor separates the lignocellulosic material into a pulp, capturing a vapor of the cooking liquor, condensing ... | 04/07/2011 |
| 20110076216 | Carbon Dioxide Capture Power Generation System The present invention discloses a carbon dioxide capture power generation system provided with a boiler to combust a fuel in the oxygen atmosphere, a carbon dioxide capture equipment to remove carbon dioxide in the wake flow of the boiler, a piping branching from the wa... | 03/31/2011 |
| 20110033356 | SYSTEMS AND METHODS FOR TREATING A STREAM COMPRISING AN UNDESIRABLE EMISSION GAS A method for treating a stream comprising an emission gas includes passing portions of the stream comprising the emission gas to two or more reactor units arranged in parallel while subjecting fluid flowing through at least one of the reactor units to pressure control; ... | 02/10/2011 |
| 20110011559 | WATER RECOVERY FROM STEAM-ASSISTED PRODUCTION A method of introducing flue gas, from a flue stack in a steam-assisted production facility, into a heat exchanger. The flue gas comprises boiler combustion products selected from at least one of commercial pipeline gas and produced gas. The method begins by cooling a p... | 01/20/2011 |
| 20110014104 | REDOX METHOD FOR CAPTURE OF TOTAL GASEOUS MERCURY BY WET FGD A method for capturing gaseous elemental mercury in a flue gas wherein a soluble mercury oxidizer is utilized to oxidize gaseous elemental mercury at a gas-liquid interface of a wet scrubber, and oxidized mercury product is removed prior to re-emission.... | 01/20/2011 |
| 20100316548 | METHODS AND SYSTEMS FOR EFFICIENT NEUTRALIZATION OF ACID GASES Methods and apparatuses are disclosed for the continuous treatment of gas streams contaminated with one or more acid gases, for example HCl, H2S, SO2, SO3, and/or Cl2. At least primary and secondary neutralization zones are ut... | 12/16/2010 |
| 20100303700 | PROCESS FOR TREATING A GAS STREAM OR EFFLUENT One exemplary embodiment can be a process for treating a tail gas stream from a sulfur recovery zone. Generally, the process includes passing the tail gas stream through, in sequence, a hydrogenation zone, a quench zone, and an acid gas removal zone using a solvent. The... | 12/02/2010 |
| 20100296993 | METHOD FOR THE CLEANING OF OFF-GAS The present invention relates to a method for cleaning off-gas comprising the following steps: 1. sulphur dioxide is separated from the off-gas by way of at least one first scrubber stage (c) by means of ammonia or ammonium compounds, 2. the off-gas is transferred into ... | 11/25/2010 |
| 20100290967 | Process for producing sodium bicarbonate for flue gas desulphurization Process for producing sodium bicarbonate for purifying flue gases, according to which an aqueous solution containing sodium sulfate is subjected to electrodialysis to produce a sodium hydroxide solution and a sodium bisulfate solution, the sodium hydroxide solution bein... | 11/18/2010 |
| 20100284878 | AIR POLLUTION CONTROL SYSTEM AND METHOD FOR COAL COMBUSTION BOILER An air pollution control system for a coal combustion boiler according to the present invention includes: a NOx removing apparatus (13) that removes nitrogen oxide contained in flue gas emitted from this coal combustion boiler (11) by adding ammonia (12... | 11/11/2010 |
| 20100202948 | Reverse Flow Reactor A reactor cools humidifies gases produced by combustion or the like. The reactor has a chamber with an inlet at a lower end to receive a flow of gas, and an outlet at a upper end. The gas flows in a generally upward direction through the reactor. The horizontal cross-se... | 08/12/2010 |
| 20100183491 | SYSTEMS AND METHODS FOR TREATING A STREAM COMPRISING AN UNDESIRABLE EMISSION GAS A method for treating a stream comprising an emission gas includes passing portions of the stream comprising the emission gas to two or more reactor units arranged in parallel while subjecting fluid flowing through at least one of the reactor units to pressure control; ... | 07/22/2010 |
| 20100135880 | Hydrocarbon Based Sulfur Solvent Systems and Methods Contemplated configurations and methods for elemental sulfur removal from various gases, and especially well acid gases employ a hydrocarbon solvent that dissolves the sulfur to form a rich solvent and that is then regenerated by hydrotreating. Thus, sulfur is removed f... | 06/03/2010 |
| 20100074817 | METHOD AND APPARATUS FOR TREATING DISCHARGE GAS The following devices are successively disposed in the following order from an upstream side to a downstream side in an exhaust gas duct of a combustion apparatus: an air preheater, preheating combustion air for use in an exhaust gas treating apparatus; a heat recovery ... | 03/25/2010 |
| 20100068110 | Removal of Hg, NOx, and SOx With Using Oxidants and Staged Gas/Liquid Contact A method of scrubbing mercury compounds and nitrogen oxides from a gas stream employing a scrubbing operation. The method involves the contact of the stream which contains mercury, SOx and NOx compounds with a sorbent to remove at least a portion o... | 03/18/2010 |
| 20100068111 | Joining the mixing and variable gas atomizing of reactive chemicals in flue gas cleaning systems for removal of sulfur oxides, nitrogen oxides and mercury Diverse methods of utilization and the corresponding, related modifications, of linear type, Variable Gas Atomization (VGA) nozzles and lances are described. Therein is joined the mixing and gas atomization of chemicals that react to form active products that further re... | 03/18/2010 |
| 20100055015 | Low temperature mercury control process The Low Temperature Mercury Control, or LTMC, process is a technology developed by us for controlling mercury emissions from coal-fired power plants. In the LTMC process, mercury emissions are controlled by cooling the exhaust flue gases with an air heater (or water spr... | 03/04/2010 |
| 20100040524 | SCRUBBER FOR REMOVING POLLUTANTS FROM FLUE GAS A scrubber for scrubbing at least one pollutant from flue gas includes a first stage configured to provide a chemical oxidant to a stream of flue gas, and a second stage configured to provide a chemical or chemicals to the stream of flue gas, a scrubbing medium recircul... | 02/18/2010 |
| 20090317316 | AUTOMATED SULFUR RECOVERY LOOP A method operable to remove contaminants from a contaminated fluid stream is provided. The process includes receiving the fluid stream containing contaminants. A first portion of the contaminants are removed from the fluid stream with a first scrubbing vessel. A first b... | 12/24/2009 |
| 20090263305 | WET FLUE-GAS DESULFURIZATION APPARATUS AND METHOD OF WET FLUE-GAS DESULFURIZATION Exhaust (Flue) gas of boiler is introduced through gas inlet part (port) (2) of flue-gas desulfurization apparatus (system), and absorbent liquid sprayed from spray nozzle (5) of absorbent liquid spray section (4) is trapped (stored) in liquid trapp... | 10/22/2009 |
| 20090263301 | APPARATUS AND METHOD TO SEQUESTER CONTAMINANTS The invention relates to an apparatus and method for reducing contaminants from industrial processes. More particularly, the invention is directed to a method of sequestering pollutants from flue gases in operational plants. The method includes sequestering contaminants... | 10/22/2009 |
| 20090220402 | NOVEL SULFUR RECOVERY PLANT Novel sulfur recovery plants, and processes utilizing these plants are disclosed. These apparatuses eliminate the use of a condenser between the waste heat boiler and first Claus catalytic reactors, and also eliminate the use of reheaters in between Claus catalytic reac... | 09/03/2009 |
| 20090148371 | Two-Stage Quench Scrubber Contemplated configurations and methods for flue gas treatment comprise a quench section and a scrubbing section that are configured and operated to avoid net condensation of water from the quenched flue gas in the scrubbing section. Consequently, the active agent in th... | 06/11/2009 |
| 20090130013 | METHODS AND SYSTEMS FOR ENHANCING MERCURY, SELENIUM AND HEAVY METAL REMOVAL FROM FLUE GAS A method for treating flue gas may include adding iron to a slurry in a ratio between approximately 20-to-1 and 5000-to-1 by weight of iron to a weight of mercury, selenium or other heavy metal to be removed from the flue gas, and contacting the slurry with the flue gas... | 05/21/2009 |
| 20090117019 | REDUCING MERCURY EMISSIONS FROM THE BURNING OF COAL Processes and compositions are provided for decreasing emissions of mercury upon combustion of fuels such as coal. Various sorbent compositions are provided that contain components that reduce the level of mercury and/or sulfur emitted into the atmosphere upon burning o... | 05/07/2009 |
| 20090118528 | NATURAL GAS DESULFURIZATION A method for desulfurizing natural gas includes contacting the natural gas with an adsorbent which preferentially adsorbs at least one of hydrogen sulfide, COS, sulfur odorants, or combinations thereof, at a selected temperature and pressure, thereby producing desulfuri... | 05/07/2009 |
| 20090098034 | Method of treating atmospheric pollutants A method of reducing at least one atmospheric oxidising pollutant, such as ozone, with a reducing agent comprises contacting the reducing agent with the at least one atmospheric oxidising pollutant, wherein the reducing agent comprises a precious metal-free trap materia... | 04/16/2009 |
| 20090044518 | SULPHUR OXIDE (SOX) REMOVAL METHOD AND SYSTEM AND CONTROLLER FOR SAID SYSTEM This system for the elimination of SOx (Sulphur Oxide) stored in a NOx (24) (Nitrogen Oxide) trap associated with an oxidation catalyst and placed upstream of a particle filter (26) in an exhaust line of a motor vehicle engine comprises a feed supervisor (... | 02/19/2009 |
