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公开(公告)号：WO2022238385A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/062606
申请日：2022-05-10
Applicant: TECFORLIME
Inventor： THIBEAUMONT, Etienne , AUBERT, Alex , CAMBIER, Pierre-Olivier , ROBIN, Charles
Abstract: The present invention discloses a decarbonation process of carbonated materials, in particular limestone and dolomitic limestone, with CO2 recovery in a multishaft vertical kiln (MSVK) comprising a first, a second, and optionally a third shaft with preheating, heating and cooling zones and a cross-over channel between each shaft, alternately heating carbonated materials by a combustion of at least one fuel with at least one comburent up to a temperature range in which carbon dioxide of the carbonated materials is released, the combustion of the fuel and the decarbonatation generating an exhaust gas, the decarbonated materials being cooled in the cooling zones with one or more cooling streams, wherein a mixing between the exhaust gas and the one or more cooling streams is minimized by operating said kiln in a mode in which between two subsequent alternating heating cycles between the first and the second or the third shaft, the decarbonated materials in at least the first, the second and/or the third shaft are cooled with the one or more cooling streams while a supply of the fuel in each shaft is stopped.
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公开(公告)号：WO2022238387A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/062608
申请日：2022-05-10
Applicant: TECFORLIME
Inventor： THIBEAUMONT, Etienne , AUBERT, Alex , CAMBIER, Pierre-Olivier , ROBIN, Charles
Abstract: The present invention relates to a decarbonation process of carbonated materials, in particular limestone and dolomitic limestone, with CO2 recovery in a multi-shaft vertical kiln (MSVK) comprising a first and a second shaft with preheating, heating and cooling zones and a cross-over channel between each shaft, alternately heating carbonated materials by a combustion of at least one fuel with at least one comburent, up to a temperature range in which carbon dioxide of the carbonated materials is released, the combustion of the fuel and the decarbonatation generating an exhaust gas, wherein decarbonated materials are cooled in the cooling zones with one or more cooling streams, said process further comprising cooling the decarbonated materials with the one or more cooling streams comprising a water steam stream, said stream being fed in the cooling zone of at least the first and/or the second shaft.
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公开(公告)号：WO2022238384A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/062605
申请日：2022-05-10
Applicant: TECFORLIME
Inventor： THIBEAUMONT, Etienne , AUBERT, Alex , PIERRE-OLIVIER, Cambier , ROBIN, Charles
Abstract: The present invention relates to a decarbonation process of carbonated materials, in particular limestone and dolomitic limestone, with CO2 recovery in a multi-shaft vertical kiln (MSVK) comprising a first, a second, and optionally a third shaft with preheating, heating and cooling zones and a cross-over channel between each shaft, alternately heating carbonated materials by a combustion of at least one fuel with at least one comburent, up to a temperature range in which carbon dioxide of the carbonated materials is released, the combustion of the fuel and the decarbonatation generating an exhaust gas, wherein decarbonated materials are cooled in the cooling zones with one or more cooling streams, wherein a mixing between the exhaust gas and the one or more cooling streams is minimized, by providing the cross-over channel arranged between the first and the second shaft with a closure means.
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公开(公告)号：WO2022238383A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/062604
申请日：2022-05-10
Applicant: TECFORLIME
Inventor： THIBEAUMONT, Etienne , AUBERT, Alex , CAMBIER, Pierre-Olivier , ROBIN, Charles
Abstract: The present invention relates to a decarbonation process of carbonated materials, in particular limestone and dolomitic limestone, with CO2 recovery in a multi- shaft vertical kiln (MSVK) comprising a first and a second shaft with preheating, heating and cooling zones and a cross-over channel between each shaft, alternately heating carbonated materials by a combustion of at least one fuel with at least one comburent, up to a temperature range in which carbon dioxide of the carbonated materials is released, the combustion of the fuel and the decarbonatation generating an exhaust gas, wherein decarbonated materials are cooled in the cooling zones with one or more cooling streams, said process further comprising extracting the exhaust gas from the multi-shaft vertical kiln and feeding a buffer with said extracted exhaust gas.
