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1. (WO2014015243) REGENERABLE SORBENT FOR CARBON DIOXIDE REMOVAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2014/015243 International Application No.: PCT/US2013/051257
Publication Date: 23.01.2014 International Filing Date: 19.07.2013
IPC:
B01J 20/04 (2006.01) ,B01J 37/04 (2006.01) ,B01D 53/62 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02
comprising inorganic material
04
comprising compounds of alkali metals, alkaline earth metals or magnesium
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37
Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
04
Mixing
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
46
Removing components of defined structure
62
Carbon oxides
Applicants:
RESEARCH TRIANGLE INSTITUTE [US/US]; 3040 Cornwallis Road P.O. Box 12194 Research Triangle Park, North Carolina 27709, US
Inventors:
SHEN, Jian-Ping; US
COLEMAN, Luke James Ivor; US
LAIL, Marty Alan; US
GUPTA, Raghubir Prasad; US
TURK, Brian Scott; US
Agent:
HUMPHREY, Christopher M.; Womble Carlyle Sandridge & Rice, LLP P.O. Box 7037 Atlanta, Georgia 30357-0037, US
Priority Data:
61/673,62619.07.2012US
Title (EN) REGENERABLE SORBENT FOR CARBON DIOXIDE REMOVAL
(FR) SORBANT RÉGÉNÉRABLE POUR L'ÉLIMINATION DE DIOXYDE DE CARBONE
Abstract:
(EN) A mixed salt composition adapted for use as a sorbent for carbon dioxide removal from a gaseous stream is provided, the composition being in solid form and including magnesium oxide, an alkali metal carbonate, and an alkali metal nitrate, wherein the composition has a molar excess of magnesium characterized by a Mg:X atomic ratio of at least about 3:1, wherein X is the alkali metal. A process for preparing the mixed salt is also provided, the process including mixing a magnesium salt with a solution comprising alkali metal ions, carbonate ions, and nitrate ions to form a slurry or colloid including a solid mixed salt including magnesium carbonate; separating the solid mixed salt from the slurry or colloid to form a wet cake; drying the wet cake to form a dry cake including the solid mixed salt; and calcining the dry cake to form a mixed salt sorbent.
(FR) L'invention concerne une composition de sel mélangé adaptée pour une utilisation comme sorbant pour l'élimination de dioxyde de carbone à partir d'un courant gazeux, la composition étant sous forme solide et comprenant de l'oxyde de magnésium, un carbonate de métal alcalin et un nitrate de métal alcalin, la composition ayant un excès molaire de magnésium caractérisé par un rapport atomique Mg:X d'au moins environ 3:1, X représentant le métal alcalin. L'invention concerne également un procédé de préparation du sel mélangé, le procédé comprenant le mélange d'un sel de magnésium avec une solution comprenant des ions de métal alcalin, des ions carbonate et des ions nitrate pour former une bouillie ou un colloïde comprenant un sel mélangé solide comprenant du carbonate de magnésium; la séparation du sel mélangé solide de la bouillie ou du colloïde pour former un gâteau humide; le séchage du gâteau humide pour former un gâteau sec comprenant le sel mélangé solide; et la calcination du gâteau sec pour former un sorbant de sel mélangé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CA2876023EP2874741CN104640622US20150190777KR1020150043290JP2015527931
AU2013292353IN963/DELNP/2015