序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 PROCESS AND SYSTEM FOR PRODUCING COMMERCIAL QUALITY CARBON DIOXIDE FROM HIGH SOLIDS LIME MUD EP07811508 2007-08-24 EP2071926A4 2011-05-11 ROSSI ROBERT A
The invention features methods and systems for calcining wet calcium carbonate lime mud produced in a re-causticizing manufacturing operation, for instance, Kraft pulp mill lime mud ("lime mud") and converting it to re-burned lime by (a) feeding wet lime mud obtained from a re-causticizing manufacturing process into a flash dryer and then feeding the dried lime mud into a bubbling fluid bed calciner thermally linked by moving media heat transfer (MMHT) utilizing solid particulate media to a circulating fluid bed combustor wherein the MMHT provides heat input for calcination and drying; (b) recycling the media being from said calciner to said combustor wherein said combustor receives mill WWTP sludge, or precipitated lignins, or biomass, or NCGs as fuels to re-heat the solid particulate media; and (c) recovering calcined "soft-burned" lime mud from the fluid bed calciner. Steam and heated boiler feed-water are also generated and exported to the mill's steam distribution and generation system as well as hot process water for use in the mill's boiler house and manufacturing operation. The system for calcining calcium carbonate lime mud produced from a re-causticizing manufacturing operation and converting it to re-burned lime comprises a calciner and a combustor linked by a moving media heat transfer MMHT system or apparatus. The MMHT system or apparatus thermally links separate fluid bed combustion (exothermic) and calcination (endothermic) stages. The system further comprises a flash dryer or spray dryer that utilizes exhausted heat from the calcination stage.
62 PROCESS FOR MINERAL CARBONATION WITH CARBON DIOXIDE EP02740486.2 2002-04-18 EP1379469B1 2006-03-01 GEERLINGS, Jacobus, Johannes, Cornelis; MESTERS, Carolus, Matthias, Anna, Maria; OOSTERBEEK, Heiko
A process for mineral carbonation with carbon dioxide wherein carbon dioxide is reacted with a bivalent alkaline earth metal silicate, selected from the group of ortho-, di-, ring, and chain silicates, which silicate is immersed in an aqueous electrolyte solution. The invention further relates to the use of the mixture of carbonate and silica formed in such a process in construction materials and to the use of the carbonate formed by such a process for the production of calcium oxide.
63 HEAT TREATMENT OF LIME SLUDGE EP95910514.9 1995-02-23 EP0751916B1 1998-12-16 THEIL, Jorgen
A method and plant for heat treatment of lime sludge (CaCO3) formed by the causticizing process during the manufacture of paper pulp. The lime sludge is dried and pulverized in a first process stage and preheated in a second process stage by means of hot exhaust gas coming from a kiln. In order to ensure that the temperature in the second process stage does not exceed a predetermined temperature lying within the range from 400 - 600 DEG C, the relationship between the amount of energy available in the exhaust gas for preheating in the second process stage and the amount of accumulated energy in the material which is to be preheated is regulated.
64 METHOD FOR TREATING PARTICULATE MATERIAL EP09746152.9 2009-05-08 EP2303793B1 2016-04-20 MOHAMED, Abdel-Mohsen, Onsy; EL GAMAL, Maisa, Mabrouk
65 METHODS AND SYSTEMS FOR UTILIZING CARBIDE LIME EP13769503 2013-03-14 EP2831120A4 2015-08-26 DEVENNEY MARTIN; FERNANDEZ MIGUEL; CHEN IRVIN; CALAS GUILLAUME
66 FINE PARTICLE CARBON DIOXIDE TRANSFORMATION AND SEQUESTRATION EP08767679.7 2008-05-12 EP2164803A2 2010-03-24 WYRSTA, Michael, D.
An energy efficient method and system for producing micron-sized particles and transforming and sequestering carbon dioxide into mineral carbonates is described, along with uses for the mineral carbonates produced in the process.
67 METHOD AND APPARATUS FOR TREATING LIME MUD EP06830912.9 2006-11-21 EP1957423A2 2008-08-20 LEICHLITER, John, Mahlon, III
A method for feeding lime mud into a lime kiln including a rotary kiln shell having an interior between a first end wall and a second end wall, the method including: feeding the lime mud into a flue gas flow in the interior of the rotary kiln shell or in close proximity to the shell to pretreat the lime mud; separating the pretreated lime mud from the flue gas flow; conveying the separated lime mud into the lime kiln, and calcining the separated lime mud in the lime kiln.
68 PROCESS FOR MINERAL CARBONATION WITH CARBON DIOXIDE EP02740486.2 2002-04-18 EP1379469A1 2004-01-14 GEERLINGS, Jacobus, Johannes, Cornelis; MESTERS, Carolus, Matthias, Anna, Maria; OOSTERBEEK, Heiko
A process for mineral carbonation with carbon dioxide wherein carbon dioxide is reacted with a bivalent alkaline earth metal silicate, selected from the group of ortho-, di-, ring, and chain silicates, which silicate is immersed in an aqueous electrolyte solution. The invention further relates to the use of the mixture of carbonate and silica formed in such a process in construction materials and to the use of the carbonate formed by such a process for the production of calcium oxide.
69 A METHOD FOR ISOLATION AND PRODUCTION OF MAGNESIUM METAL, MAGNESIUM CHLORIDE, MAGNESITE AND MAGNESIUM BASED PRODUCTS EP98939833.4 1998-08-14 EP1097247A1 2001-05-09 BALLOU, Brian, J.
There is described a method for the isolation and production of magnesium metal, magnesium chloride and magnesium-based products from the leaching of laterite material, by isolating magnesium metal, magnesium chloride and magnesite from any step in the leaching of laterite material.
70 HEAT TREATMENT OF LIME SLUDGE EP95910514.0 1995-02-23 EP0751916A1 1997-01-08 THEIL, Jorgen
A method and plant for heat treatment of lime sludge (CaCO3) formed by the causticizing process during the manufacture of paper pulp. The lime sludge is dried and pulverized in a first process stage and preheated in a second process stage by means of hot exhaust gas coming from a kiln. In order to ensure that the temperature in the second process stage does not exceed a predetermined temperature lying within the range from 400 - 600 °C, the relationship between the amount of energy available in the exhaust gas for preheating in the second process stage and the amount of accumulated energy in the material which is to be preheated is regulated.
71 FEEDING SYSTEM FOR A LIME REBURNING KILN EP90909734.7 1990-06-28 EP0480960B1 1995-03-01 AHVENAINEN, Arto
A method and apparatus for heat treatment of lime mud comprises drying of the lime mud to be introduced into the lime reburning kiln (5) in a pneumatic dryer (3) by means of flue gases discharged from the lime reburning kiln in order to regenerate the lime content of the lime mud. From a drying filter (6), the lime mud thickened to a dry solids content of over 75 %, preferably to 80 %, is introduced into a feed chamber (2) through which an adjustable portion of the flue gas is conducted. Depending on the gas amount, 100 % or less of the lime mud is entrained with the gas into the dryer (3), the remaining portion falling into the lower section (14) of the feed chamber, wherefrom it is further transferred into the lime reburning kiln (5).
72 METHOD AND ARRANGEMENT FOR BURNING LIME MUD EP12716476.2 2012-02-23 EP2681170B1 2018-09-19 VEHMAAN-KREULA, Juhani
The present invention relates to a method and an arrangement for burning lime mud into lime in a lime kiln. The lime mud flows counter-currently to flue gases from a feed end to a firing end and the fuel used is flue gas that is produced by gasifying a fuel in the presence of combustion air in a gasifier. The combustion air for gasification is preheated with heat generated in lime mud combustion. The arrangement is provided with a conduit between the lime kiln and the gasifier for leading air from the lime kiln into the gasifier as combustion air. At least a portion of the combustion air for gasification is preheated with heat generated in the lime mud combustion so that air is led into cooling of lime obtained in the combustion and further into the kiln, from or through the firing end of which air is taken into the gasification.
73 METHOD AND ARRANGEMENT FOR BURNING LIME MUD EP12716476.2 2012-02-23 EP2681170A1 2014-01-08 VEHMAAN-KREULA, Juhani
The present invention relates to a method and an arrangement for burning lime mud into lime in a lime kiln. The lime mud flows counter-currently to flue gases from a feed end to a firing end and the fuel used is flue gas that is produced by gasifying a fuel in the presence of combustion air in a gasifier. The combustion air for gasification is preheated with heat generated in lime mud combustion. The arrangement is provided with a conduit between the lime kiln and the gasifier for leading air from the lime kiln into the gasifier as combustion air. At least a portion of the combustion air for gasification is preheated with heat generated in the lime mud combustion so that air is led into cooling of lime obtained in the combustion and further into the kiln, from or through the firing end of which air is taken into the gasification.
74 CO2-CAPTURING BINDER, PRODUCTION METHOD THEREOF BASED ON THE SELECTION, PURIFICATION AND OPTIMISATION OF CARBIDE LIME, AND AGGLOMERATES HAVING AN ENVIRONMENTAL ACTIVITY EP10846916.4 2010-05-04 EP2500328A1 2012-09-19 BERMEJO SOTILLO, Miguel Angel; RODRIGUEZ NAVARRO, Carlos; RUIZ AGUDO, Encarnación; ELERT, Kerstin

The invention relates to CO2 capturing binder with an amortized environmental cost, the method of manufacture thereof by means of selecting, purifying and optimizing the carbide lime paste for use as a cementing material, and aggregates for the manufacture of lime paints and slurries, stuccos, mortars and concretes having multiple applications in the construction industry, in architectural restoration, in public works and land conditioning, object of the present invention. It is basically characterized in that the raw material is the residue in the form of sludge generated in the industrial manufacture of acetylene (C2H2) from calcium carbide (CaC2) the fundamental component of which is calcium hydroxide (Ca(OH)2) in highly reactive nanometric formations treated in a specific manner according to the invention.

75 METHOD FOR TREATING PARTICULATE MATERIAL EP09746152.9 2009-05-08 EP2303793A1 2011-04-06 MOHAMED, Abdel-Mohsen, Onsy; EL GAMAL, Maisa, Mabrouk
This invention describes the use of a fluidized bed reactor in the carbonation of a solid, inorganic and alkaline particulate material which contains alkaline metal salts. It also describes a method for treating cement kiln dust (CKD) containing alkaline metal salts. The treatment method comprises two steps: (a) a hydration step; and (b) a carbonation step, wherein the carbonation step is carried out in a fluidized bed reactor. In a preferred aspect of the present invention, the treated CKD is used as an aggregate in sulfur polymer concrete (SPC). Accordingly, the present invention also provides a method for producing SPC, which method comprises heating and mixing treated CKD of the present invention, elemental sulfur and modified sulfur to produce a mixture. The SPC can be used as a barrier to restrict permeation of matter, e.g. in a containment construction for storing matter such as hazardous waste.
76 PROCESS AND SYSTEM FOR PRODUCING COMMERCIAL QUALITY CARBON DIOXIDE FROM HIGH SOLIDS LIME MUD EP07811508.6 2007-08-24 EP2071926A2 2009-06-24 Rossi, Robert A.
The invention features methods and systems for calcining wet calcium carbonate lime mud produced in a re-causticizing manufacturing operation, for instance, Kraft pulp mill lime mud ("lime mud") and converting it to re-burned lime by (a) feeding wet lime mud obtained from a re-causticizing manufacturing process into a flash dryer and then feeding the dried lime mud into a bubbling fluid bed calciner thermally linked by moving media heat transfer (MMHT) utilizing solid particulate media to a circulating fluid bed combustor wherein the MMHT provides heat input for calcination and drying; (b) recycling the media being from said calciner to said combustor wherein said combustor receives mill WWTP sludge, or precipitated lignins, or biomass, or NCGs as fuels to re-heat the solid particulate media; and (c) recovering calcined "soft-burned" lime mud from the fluid bed calciner. Steam and heated boiler feed-water are also generated and exported to the mill's steam distribution and generation system as well as hot process water for use in the mill's boiler house and manufacturing operation. The system for calcining calcium carbonate lime mud produced from a re-causticizing manufacturing operation and converting it to re-burned lime comprises a calciner and a combustor linked by a moving media heat transfer MMHT system or apparatus. The MMHT system or apparatus thermally links separate fluid bed combustion (exothermic) and calcination (endothermic) stages. The system further comprises a flash dryer or spray dryer that utilizes exhausted heat from the calcination stage.
77 PROCESS AND FURNACE FOR HEAT TREATMENT OF POULTRY EGGSHELLS, AND EGGSHELL PRODUCT EP06791485.3 2006-09-26 EP1928616A1 2008-06-11 PEDERSEN, Frederik Møller; BØGNER, Thomas; NIELSEN, Keen
A process for heat treatment of poultry eggshells originating from an in dustrial egg-processing line, in which heat for the heat treatment is gen- erated at least partially by combustion of egg trays. The heat treatment converts at least a part of the calcium carbonate of the eggshells into calcium oxide. The invention also relates to an eggshell product, which may be obtained from said process, and an eggshell heat treatment fur¬ nace, which may be used for carrying out said process.
78 A METHOD FOR ISOLATION AND PRODUCTION OF MAGNESIUM BASED PRODUCTS EP98939833.4 1998-08-14 EP1097247B1 2003-12-03 BALLOU, Brian, J.
79 Verfahren zum Herstellen von Branntkalk EP98118652.1 1998-10-02 EP0908422A1 1999-04-14 Morgenroth, Henning, Dr.-Ing.; Koslowski, Thomas, Dr.-Ing.

Die Erfindung betrifft ein Verfahren zum Herstellen von Branntkalk aus einer feinstteiligen, feuchten Kalkmasse, wie sie bei der Zuckergewinnung anfällt, wobei die Calciumcarbonat, Phosphate, Silikate sowie organische Bestandteile enthaltende Kalkmasse zunächst pelletiert wird und einem Drehrohrofen eingebracht wird, wobei im Drehrohrofen durch Zufuhr von Wärmeenergie

  • a) zunächst die Feuchtigkeit ausgetrieben wird,
  • b) unter Zufuhr von Sauerstoff und/oder einem sauerstoffhaltigen Gasgemisch die organischen Bestandteile unter Gasbildung zersetzt werden, wobei das Gas durch die Poren zur Oberfläche und in die Ofenatmosphäre gelangt und dort verbrannt wird,
  • c) und unter weiterer Zugabe von Sauerstoff und Energie der in den Pellets verbleibende Restkohlenstoff verbrannt wird,
  • d) das Calciumcarbonat durch weitere Wärmezugabe entsäuert wird,
  • e) anschließend in einem Kühler abgekühlt wird und
  • f) anschließend fein aufgemahlen wird.

80 FEEDING SYSTEM FOR A LIME REBURNING KILN EP90909734.0 1990-06-28 EP0480960A1 1992-04-22 AHVENAINEN, Arto
Procédé et appareil pour le traitement à chaud de boues résiduaires de chaux comprenant le séchage desdites boues devant être introduites dans le four de cuisson de la chaux (5) dans un séchoir pneumatique (3) à l'aide de gaz de fumées déchargés dudit four de manière à régénérer la teneur en chaux des boues résiduaires. Les boues que l'on a épaissies à une teneur en matière sèche supérieure à 75 %, et de préférence à 80 %, sont amenées depuis un filtre de séchage (6) à une chambre d'alimentation (2) à travers laquelle est conduite une partie réglable des gaz de fumées. Selon la quantité de gaz, 100% ou moins des boues résiduaires de chaux sont entraînés avec ledit gaz dans le séchoir (3); la portion qui reste tombe dans la partie inférieure (14) de la chambre d'alimentation, d'où on la transfère ensuite au four (5) de cuisson de la chaux.
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