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Desulfurization and decarburization system and desulfurization and decarburization method
The invention relates to the technical field of desulfurization and decarburization processes for flue gas, and discloses a desulfurization and decarburization system and a desulfurization and decarburization method. The desulfurization and decarburization system comprises a rotary kiln, wherein a limestone raw material is calcined in the rotary kiln and can be calcined into quick lime through high temperature in the rotary kiln; the quick lime is dissolved in water in a reaction tank to become calcium hydroxide turbid liquid; the calcium hydroxide turbid liquid reacts with carbon dioxide and sulfur dioxide in flue gas in a circulating spraying layer of an absorption tower to generate calcium sulfate and calcium carbonate, so effective desulfurization and decarburization can be achieved; carbon dioxide generated in the calcining process of the limestone raw material can be collected through a collecting pipeline and a storage tank, and the part of carbon dioxide not only can be used for manufacturing fire extinguishers, soda, beer, cola, dry ice and other products, but also can be directly injected into underground oil fields to fill gaps after oil exploitation and stored underground for a long time; and the method has the advantages of novel design, simple steps and capability of collecting pure carbon dioxide.
本发明涉及烟气脱硫脱碳工艺技术领域，且公开了一种脱硫脱碳系统和脱硫脱碳方法，包括回转窑，石灰石原料在回转窑中煅烧，利用炉内的高温可以将石灰石原料煅烧成生石灰，生石灰再在反应罐中溶于水变成氢氧化钙悬浊液，氢氧化钙悬浊液在吸收塔的循环喷淋层中，与烟气中的二氧化碳和二氧化硫反应，生成硫酸钙和碳酸钙，便能够有效的脱硫和脱碳，通过收集管道和储存罐还可以收集石灰石原料煅烧过程中产生的二氧化碳，这部分二氧化碳不仅可用于制作灭火器、苏打、啤酒、可乐和干冰等产品，还可以直接注入地下油田填充石油开采后的空隙，长期储存在地下，本发明设计新颖，具有步骤简单、能够收集到纯净的二氧化碳的优点。
Desulfurization and decarburization system and desulfurization and decarburization method
The invention relates to the technical field of desulfurization and decarburization processes for flue gas, and discloses a desulfurization and decarburization system and a desulfurization and decarburization method. The desulfurization and decarburization system comprises a rotary kiln, wherein a limestone raw material is calcined in the rotary kiln and can be calcined into quick lime through high temperature in the rotary kiln; the quick lime is dissolved in water in a reaction tank to become calcium hydroxide turbid liquid; the calcium hydroxide turbid liquid reacts with carbon dioxide and sulfur dioxide in flue gas in a circulating spraying layer of an absorption tower to generate calcium sulfate and calcium carbonate, so effective desulfurization and decarburization can be achieved; carbon dioxide generated in the calcining process of the limestone raw material can be collected through a collecting pipeline and a storage tank, and the part of carbon dioxide not only can be used for manufacturing fire extinguishers, soda, beer, cola, dry ice and other products, but also can be directly injected into underground oil fields to fill gaps after oil exploitation and stored underground for a long time; and the method has the advantages of novel design, simple steps and capability of collecting pure carbon dioxide.
本发明涉及烟气脱硫脱碳工艺技术领域，且公开了一种脱硫脱碳系统和脱硫脱碳方法，包括回转窑，石灰石原料在回转窑中煅烧，利用炉内的高温可以将石灰石原料煅烧成生石灰，生石灰再在反应罐中溶于水变成氢氧化钙悬浊液，氢氧化钙悬浊液在吸收塔的循环喷淋层中，与烟气中的二氧化碳和二氧化硫反应，生成硫酸钙和碳酸钙，便能够有效的脱硫和脱碳，通过收集管道和储存罐还可以收集石灰石原料煅烧过程中产生的二氧化碳，这部分二氧化碳不仅可用于制作灭火器、苏打、啤酒、可乐和干冰等产品，还可以直接注入地下油田填充石油开采后的空隙，长期储存在地下，本发明设计新颖，具有步骤简单、能够收集到纯净的二氧化碳的优点。
Desulfurization and decarburization system and desulfurization and decarburization method
一种脱硫脱碳系统和脱硫脱碳方法
ZHANG ZHAOPENG (author)
2021-04-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
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
Decarburization equipment and decarburization process for coal gangue
| European Patent Office | 2024