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Method and apparatus for producing lime or calcined dolomite
A method and apparatus for producing lime or calcined dolomite, the method comprising calcining a calcium-containing or dolomite-containing material in contact with a first flue gas obtained by combusting a fuel with an oxidizing gas, cooling and discharging and collecting the calcined lime or calcined dolomite, and releasing a gaseous effluent comprising CO2; the method further includes consuming CO2 by passing the gaseous effluent through a CaO-based sorbent material, the CaO-based sorbent material capturing CO2 and forming a CaCO3-CaO-based charge; separating the CaCO3-CaO-based charge and the CO2-lean gaseous effluent, removing the CO2-lean gaseous effluent; the separated CaCO3-CaO-based charge is in contact with second flue gas to be calcined, a CaO-based adsorbent material is formed, and the second flue gas is obtained by combusting an impurity-poor fuel and an oxidizing gas composed of molecular oxygen and CO2; separating the CaO-based adsorbent material from the CO2-rich gas stream, collecting the CO2-rich gas stream; recycling the separated CaO-based sorbent material to the CO2 depletion step; the valuable fraction of the CaCO3-CaO-based charge is extracted and the new CaCO3 (29) is compensated in the calcination step.
生产石灰或煅烧白云石的方法和设备，方法包括将含钙或含白云石的材料与通过燃烧燃料与氧化气体获得的第一烟气接触进行煅烧，将煅烧的石灰或煅烧白云石冷却并排放和收集，以及释放含CO2的气态流出物；方法还包括通过使该气态流出物通过CaO基吸附剂材料来消耗CO2，CaO基吸附剂材料捕获CO2并形成CaCO3‑CaO基装料；分离CaCO3‑CaO基装料和贫CO2气态流出物，移除贫CO2气态流出物；将分离的CaCO3‑CaO基装料与第二烟气接触进行煅烧，形成CaO基吸附剂材料，第二烟气通过燃烧贫杂质燃料和由分子氧和CO2组成的氧化气体获得；分离CaO基吸附剂材料与富含CO2的气流，收集富含CO2的气流；将分离的CaO基吸附剂材料再循环到CO2消耗步骤；提取CaCO3‑CaO基装料的有价值部分并在煅烧步骤中补偿引入新CaCO3(29)。
Method and apparatus for producing lime or calcined dolomite
A method and apparatus for producing lime or calcined dolomite, the method comprising calcining a calcium-containing or dolomite-containing material in contact with a first flue gas obtained by combusting a fuel with an oxidizing gas, cooling and discharging and collecting the calcined lime or calcined dolomite, and releasing a gaseous effluent comprising CO2; the method further includes consuming CO2 by passing the gaseous effluent through a CaO-based sorbent material, the CaO-based sorbent material capturing CO2 and forming a CaCO3-CaO-based charge; separating the CaCO3-CaO-based charge and the CO2-lean gaseous effluent, removing the CO2-lean gaseous effluent; the separated CaCO3-CaO-based charge is in contact with second flue gas to be calcined, a CaO-based adsorbent material is formed, and the second flue gas is obtained by combusting an impurity-poor fuel and an oxidizing gas composed of molecular oxygen and CO2; separating the CaO-based adsorbent material from the CO2-rich gas stream, collecting the CO2-rich gas stream; recycling the separated CaO-based sorbent material to the CO2 depletion step; the valuable fraction of the CaCO3-CaO-based charge is extracted and the new CaCO3 (29) is compensated in the calcination step.
生产石灰或煅烧白云石的方法和设备，方法包括将含钙或含白云石的材料与通过燃烧燃料与氧化气体获得的第一烟气接触进行煅烧，将煅烧的石灰或煅烧白云石冷却并排放和收集，以及释放含CO2的气态流出物；方法还包括通过使该气态流出物通过CaO基吸附剂材料来消耗CO2，CaO基吸附剂材料捕获CO2并形成CaCO3‑CaO基装料；分离CaCO3‑CaO基装料和贫CO2气态流出物，移除贫CO2气态流出物；将分离的CaCO3‑CaO基装料与第二烟气接触进行煅烧，形成CaO基吸附剂材料，第二烟气通过燃烧贫杂质燃料和由分子氧和CO2组成的氧化气体获得；分离CaO基吸附剂材料与富含CO2的气流，收集富含CO2的气流；将分离的CaO基吸附剂材料再循环到CO2消耗步骤；提取CaCO3‑CaO基装料的有价值部分并在煅烧步骤中补偿引入新CaCO3(29)。
Method and apparatus for producing lime or calcined dolomite
生产石灰或煅烧白云石的方法和设备
HABIB ZIAD (author) / VAN CANTEFORT OLIVIER (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
B01D
SEPARATION
,
Trennen
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
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