A kind of coal-based activated carbon, columnar activated carbon and preparation method thereof
A coal-based activated carbon, columnar technology, applied in the field of chemistry, can solve the problems of insufficient mesoporosity and water capacity, low particle strength, insufficient carbon skeleton strength, etc., and achieves good water capacity, good adhesion, and mesoporosity. high effect
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Embodiment 1
[0032] Step 1: Crush weakly caking coal and gas-fertilized coal with a total weight of 100g and pass through a 200-mesh sieve. Weakly caking coal and gas-fertilized coal are mixed in a weight ratio of 4:1. %, the ash content is less than 10%;
[0033] Step 2: Add the powder of step 1 into a container with a stirrer, start stirring and spray 15% ammonia water into the powder; the amount of ammonia water is 2g, mix well and let stand for 12 hours;
[0034] Step 3: Add the powder, coal tar, and binder processed in step 2 into a high-speed mixer for mixing according to the ratio of 100:17:7. After mixing evenly, add it to the mold and extrude under a pressure of 30-40MPa The semi-finished granules are obtained by molding; the coal tar is high-temperature coal tar, and the binder is a water-based rosin resin. It is prepared by the method of the embodiment in the permanent fumaric acid modified rosin resin and its preparation method. Of course, the rosin resin modified by fumaric ...
Embodiment 2
[0038] Step 1: Crush weakly caking coal and gas-fertilized coal with a total weight of 100g and pass through a 200-mesh sieve. Weakly caking coal and gas-fertilized coal are mixed in a weight ratio of 3:1. %, the ash content is less than 10%;
[0039] Step 2: Add the powder in step 1 into a container with a stirrer, start stirring and spray 20% ammonia water into the powder; the amount of ammonia water is 2g, mix well and let stand for 24 hours;
[0040] Step 3: Put the powder, coal tar, and binder processed in step 2 into the high-speed mixer for mixing according to the ratio of 100:15:10. After mixing evenly, add it to the mold and extrude under the pressure of 30-40MPa The semi-finished product particles are obtained by molding; the coal tar is high-temperature coal tar; the concentration of water-based rosin resin in the adhesive is 50%, and the concentration of ammonia water is 8%.
[0041] Step 4: The semi-finished granules obtained in step 3 are carbonized and activate...
Embodiment 3
[0044] Step 1: Crush weakly caking coal and gas-fertilized coal with a total weight of 100g and pass through a 200-mesh sieve. Weakly caking coal and gas-fertilized coal are mixed in a weight ratio of 5:1. %, the ash content is less than 10%;
[0045] Step 2: Add the powder of step 1 into a container with a stirrer, start stirring and spray 15% ammonia water into the powder; the amount of ammonia water is 2.5g, mix well and let stand for 12 hours;
[0046] Step 3: Put the powder, coal tar, and binder processed in step 2 into a high-speed mixer for mixing according to the ratio of 100:20:5. After mixing evenly, add it to the mold and extrude under a pressure of 30-40MPa Semi-finished granules are obtained by molding; the coal tar is high-temperature coal tar; the concentration of water-based rosin resin in the binder is 30%, and the concentration of ammonia water is 5%.
[0047] Step 4: The semi-finished granules obtained in step 3 are carbonized and activated in a carbonizati...
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