A process for deammonization and desulfurization of coke oven gas
A technology for coke oven gas and deamination, which is applied in ammonium sulfate, separation method, dispersed particle separation, etc., can solve the problems of complex process, unsatisfactory economy, high equipment and operating costs, and achieve the effect of improving economic performance.
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Embodiment 1
[0037] The process described in this embodiment for the deamination and desulfurization of coke oven gas is as follows figure 1 Shown, including:
[0038] (1) Pass the coke oven gas into the ammonia absorption tower, the coke oven gas reacts with the ferrous sulfate solution sprayed on the top of the ammonia absorption tower to remove the ammonia from the coke oven gas, and control the temperature in the reactor of the ammonia absorption tower to be At 40°C, the pH of the reaction solution is 9; the concentration of the ferrous sulfate solution is 0.8 mol / L, the liquid-to-air ratio of the coke oven gas and the ferrous sulfate solution is 1.0, and the reaction produces a mixture containing ammonium sulfate and green rust Solution.
[0039] (2) Filter the solution containing ammonium sulfate and green rust generated in step (1), place the filtered green rust in an air environment, and dry it at room temperature until amorphous iron oxyhydroxide is formed;
[0040] (3) Mix the amorphou...
Embodiment 2
[0042] The process for the deamination and desulfurization of coke oven gas described in this embodiment is as follows figure 2 Shown, including:
[0043] (1) Pass the coke oven gas into the ammonia absorption tower, the coke oven gas reacts with the ferrous sulfate solution sprayed on the top of the ammonia absorption tower to remove the ammonia from the coke oven gas, and control the temperature in the reactor of the ammonia absorption tower to be At 40°C, the pH of the reaction solution is 9; the concentration of the ferrous sulfate solution is 0.8 mol / L, the liquid-to-air ratio of the coke oven gas and the ferrous sulfate solution is 1.0, and the reaction produces a mixture containing ammonium sulfate and green rust Solution.
[0044] (2) Filter the solution containing ammonium sulfate and green rust produced in step (1), mix the filtered green rust and water to form a slurry with a green rust concentration of 20wt%, and pass the slurry into the slurry containing Oxygen gas ...
Embodiment 3
[0048] The process for the deamination and desulfurization of coke oven gas described in this embodiment is as follows figure 2 Shown, including:
[0049] (1) Pass the coke oven gas into the ammonia absorption tower, the coke oven gas reacts with the ferrous sulfate solution sprayed on the top of the ammonia absorption tower to remove the ammonia from the coke oven gas, and control the temperature in the reactor of the ammonia absorption tower to be At 20°C, the pH of the reaction solution is 5, the concentration of the ferrous sulfate solution is 1.3 mol / L, the liquid-to-air ratio of the coke oven gas to the ferrous sulfate solution is 2.0, and the reaction produces a mixture containing ammonium sulfate and green rust Solution.
[0050] (2) Filter the solution containing ammonium sulfate and green rust produced in step (1), mix the filtered green rust and water to form a slurry with a green rust concentration of 20wt%, and pass the slurry into the slurry containing Oxygen gas o...
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