Compound decarburization solution for recovering carbon dioxide in gas mixture
A technology of carbon dioxide and mixed gas, applied in the direction of inorganic chemistry, through absorption, carbon compounds, etc., can solve the problem of insufficient decarburization ability of decarburization solution, and achieve the effect of large absorption capacity and low desorption temperature
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Embodiment 1
[0018] Example 1 is a carbon dioxide recovery device in a flue gas in Zhejiang
[0019] Raw gas: 30000Nm 3 / h, composition: CO 2 : 9.5%; O 2 : 7.0%; H 2 O: 11.0%; N 2 : 72.0%; CO: 1.0%; trace sulfides and nitrogen oxides. The average temperature of the absorption tower is 50°C, and the average temperature of the desorption tower is 105°C.
[0020] CO 2 Recycling capacity: 30,000 tons / year or 2200Nm 3 / h, purity 99% (dry basis).
[0021] Composite decarburization solution circulation volume: 120Nm 3 / h, composition: main absorption component hydroxyethylethylenediamine (AEE), its content (both refer to mass percentage content) is 25%. Absorption aid component 2-amino-2-methyl-1-propanol (AMP), its content is 10%; N-methyldiethanolamine (MDEA), its content is 5%. Activation component-ethanolamine (MEA), whose content is 5%; piperazine (PZ), whose content is 5%. The corrosion inhibitor is sodium vanate, its content is 0.07%. Antioxidants are sodium sulfite and copper ...
Embodiment 2
[0022] Example 2 A carbon dioxide recovery device in Heilongjiang
[0023] Raw gas: 12000Nm 3 / h, composition: CO 2 : 10.25%; O 2 : 6.8%; H 2 O: 9.1%; N 2 : 75.0%; CO: 1.0%; trace sulfides and nitrogen oxides. The average temperature of the absorption tower is 50°C, and the average temperature of the desorption tower is 105°C.
[0024] CO 2 Recovery volume: 66Nm 3 / h, purity 98.5% (dry basis).
[0025] Composite decarburization solution circulation volume: 120Nm 3 / h, composition: main absorption component hydroxyethylethylenediamine (AEE), its content is 25%. The absorption aid component 2-amino-2-methyl-1-propanol (AMP), its content is 5%; N-methyldiethanolamine (MDEA), its content is 5%; Triethanolamine (TEA), its The content is 5%. Activation component-ethanolamine (MEA) whose content is 4%; diethanolamine (DEA) whose content is 3%; piperazine (PZ) whose content is 3%. The corrosion inhibitor is sodium vanitate, its content is 0.05%. Antioxidants are sodium su...
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