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1. WO2022006230 - METHODS AND SYSTEMS FOR FORMING VATERITE FROM CALCINED LIMESTONE USING ELECTRIC KILN

Publication Number WO/2022/006230
Publication Date 06.01.2022
International Application No. PCT/US2021/039825
International Filing Date 30.06.2021
IPC
B01D 53/34 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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
34Chemical or biological purification of waste gases
B01D 53/46 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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
34Chemical or biological purification of waste gases
46Removing components of defined structure
B01D 53/62 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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
34Chemical or biological purification of waste gases
46Removing components of defined structure
62Carbon oxides
C04B 7/00 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
7Hydraulic cements
C04B 7/36 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
7Hydraulic cements
36Manufacture of hydraulic cements in general
CPC
C01F 11/06
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
11Compounds of calcium, strontium, or barium
02Oxides or hydroxides
04by thermal decomposition
06of carbonates
C01F 11/18
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
11Compounds of calcium, strontium, or barium
18Carbonates
Applicants
  • ARELAC, INC. [US]/[US]
Inventors
  • GILLIAM, Ryan J.
  • WEISS, Michael Joseph
Agents
  • TRUONG, Johnson
Priority Data
63/046,23930.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND SYSTEMS FOR FORMING VATERITE FROM CALCINED LIMESTONE USING ELECTRIC KILN
(FR) PROCÉDÉS ET SYSTÈMES DE FORMATION DE VATERITE À PARTIR DE CALCAIRE CALCINÉ À L'AIDE D'UN FOUR ÉLECTRIQUE
Abstract
(EN) Provided herein are zero carbon dioxide (CO2) emission processes and systems to carry out the processes, comprising a) calcining limestone in a cement plant in an electric kiln to form a mixture comprising calcium oxide and a first gaseous stream comprising clean carbon dioxide, wherein the clean carbon dioxide comprises no gaseous or non-gaseous components from combustion of fuel; b) treating the mixture comprising calcium oxide with a N-containing salt solution under one or more dissolution conditions to produce a first aqueous solution comprising calcium salt; and c) contacting the first aqueous solution with the first gaseous stream comprising clean carbon dioxide under one or more precipitation conditions to produce a precipitation material comprising vaterite, aragonite, calcite, or combinations thereof.
(FR) La présente invention concerne des processus et des systèmes d'émission nulle de dioxyde de carbone nul (CO2) pour mettre en œuvre les processus, comprenant a) à calciner le calcaire dans une cimenterie dans un four électrique pour former un mélange comprenant de l'oxyde de calcium et un premier flux gazeux comprenant du dioxyde de carbone propre, le dioxyde de carbone propre ne comprenant pas de constituants gazeux ou non gazeux issus de la combustion du carburant ; b) traiter le mélange comprenant de l'oxyde de calcium avec une solution de sel contenant du N dans une ou plusieurs conditions de dissolution pour produire une première solution aqueuse comprenant du sel de calcium ; et c) à mettre en contact de la première solution aqueuse avec le premier courant gazeux comprenant du dioxyde de carbone propre dans une ou plusieurs conditions de précipitation pour produire un matériau de précipitation comprenant de la vaterite, de l'aragonite, de la calcite, ou des combinaisons de ceux-ci.
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