Process for storing carbon dioxide in flue gas by utilizing brucite
A process flow, carbon dioxide technology, applied in the direction of magnesium carbonate, through chemical separation, chemical instruments and methods, etc., can solve the problems of low development utilization rate, achieve high storage efficiency, avoid a large amount of heat, and broad application prospects
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Embodiment 1
[0073] The raw material of brucite used in this embodiment comes from Dandong City, Liaoning Province, and the raw ore is in the shape of a block of about 10×10 cm. The mass content of main components in brucite is: MgO~63.44%, SiO 2 ~2.45%, CaO ~0.7%, Na2 O~0.31%, Fe 2 o 3 ~0.16%, P 2 o 5 ~0.13%, Al 2 o 3 ~0.03% and ablation amount (H 2 O.CO 2 etc.) 32.6%, the remaining impurities 0.18%.
[0074] step 1:
[0075] The raw brucite is roughly crushed to the millimeter level by a ball mill, and then further manually ground to the micron level, and then sieved to the required particle size through 40-mesh and 45-mesh standard sieves to obtain brucite with an average particle size of about 400 μm stone particles;
[0076] Step 2:
[0077] Prepare concentrated NH 4 Cl solution: take 5.34kgNH 4 The Cl solid was dissolved in 20 L of deionized water and transferred to a batch reactor, which was heated to 100° C. with an oil bath circulation and a stirring speed of 600 rpm....
Embodiment 2
[0094] The raw material of brucite used in this embodiment comes from Dandong City, Liaoning Province, and the raw ore is in the shape of a block of about 10×10 cm. The mass content of main components in brucite is: MgO~63.44%, SiO 2 ~2.45%, CaO ~0.7%, Na 2 O~0.31%, Fe 2 o 3 ~0.16%, P 2 o 5 ~0.13%, Al 2 o 3 ~0.03% and ablation amount (H 2 O.CO 2 etc.) 32.6%, the remaining impurities 0.18%.
[0095] step 1:
[0096] The brucite raw stone is roughly crushed to the millimeter level by a ball mill, and then further manually ground to the micron level, and then sieved to the required particle size by standard sieving of 80 mesh and 100 mesh respectively, and the average particle size is about 167 μm;
[0097] Step 2:
[0098] Prepare concentrated NH 4 Cl solution: take 4.3kgNH 4 The Cl solid was dissolved in 20 L of deionized water, and transferred to a batch reactor. The reactor was heated to 85° C. with an oil bath circulation, and the stirring speed was 400 rpm. Wa...
Embodiment 3
[0115] The raw material of brucite used in this embodiment comes from Dandong City, Liaoning Province, and the raw ore is in the shape of a block of about 10×10 cm. The mass content of main components in brucite is: MgO~63.44%, SiO 2 ~2.45%, CaO ~0.7%, Na 2 O~0.31%, Fe 2 o 3 ~0.16%, P 2 o 5 ~0.13%, Al 2 o 3 ~0.03% and ablation amount (H 2 O.CO 2 etc.) 32.6%, the remaining impurities 0.18%.
[0116] step 1:
[0117] The brucite raw stone is roughly crushed to the millimeter level by a ball mill, and then further manually ground to the micron level, and then passed through 140 mesh and 170 mesh standard sieves to the required particle size, with an average particle size of about 90 μm;
[0118] Step 2:
[0119] Prepare concentrated NH 4 Cl solution: take 3.2kgNH 4 The Cl solid was dissolved in 20 L of deionized water, and transferred to a batch reactor, and the reactor was heated to 75° C. with an oil bath circulation, and the stirring speed was 200 rpm. Waiting fo...
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