Biological desulfurization technology used for coal
A biological desulfurization and process technology, applied in the field of coal processing, can solve the problems of only 57.8% desulfurization rate, long operation cycle, and low desulfurization efficiency, and achieve the effect of improving use value, low equipment requirements, and good desulfurization effect
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Embodiment 1
[0026] A biological desulfurization process for coal, comprising the following steps:
[0027] (1) Put the coal into the reactor, add water and bacterial solution A, mix well, and react at room temperature for 7 hours;
[0028] (2) Stirring and reacting for 3 hours at a temperature of 26° C.;
[0029] (3) Add bacterial solution B to the reaction kettle, and stir and react for 7 hours at a temperature of 37°C;
[0030] (4) washing the coal in the reaction kettle with water while stirring, drying after filtering to obtain the desulfurized coal;
[0031] The culture method of the bacteria liquid A in the step (1) is as follows: collect the Thiobacillus ferrooxidans bacteria liquid, add the sterilized medium, propagate at 29°C for 6 days, and then separate and purify the bacteria to obtain the concentration 1.5×10 8 A / mL bacterial solution A;
[0032] The bacterial liquid B in the step (3) is made from the bacterial liquid of Thiobacillus thiooxidans and the bacterial liquid o...
Embodiment 2
[0036] A biological desulfurization process for coal, comprising the following steps:
[0037] (1) Put the coal into the reactor, add water and bacterial solution A, mix well, and react at room temperature for 10 hours;
[0038] (2) at a temperature of 30° C., stirring and reacting for 2 hours;
[0039] (3) Add bacterial solution B to the reaction kettle, and stir and react for 8 hours at a temperature of 30°C;
[0040] (4) washing the coal in the reaction kettle with water while stirring, drying after filtering to obtain the desulfurized coal;
[0041] The cultivation method of the bacteria liquid A in the step (1) is as follows: collect the Thiobacillus ferrooxidans bacteria liquid, add the sterilized medium, propagate at 29° C. for 7 days, and then separate and purify the bacteria to obtain the concentration 1.5×10 7 A / mL bacterial solution A;
[0042] The bacterial liquid B in the step (3) is made from the bacterial liquid of Thiobacillus thiooxidans and the bacterial ...
Embodiment 3
[0046] A biological desulfurization process for coal, comprising the following steps:
[0047] (1) Put the coal into the reaction kettle, add water and bacterial solution A, mix well, and react at room temperature for 5 hours;
[0048] (2) at a temperature of 20°C, stirring and reacting for 5 hours;
[0049] (3) Add bacterial solution B to the reaction kettle, and stir and react for 6 hours at a temperature of 40°C;
[0050] (4) washing the coal in the reaction kettle with water while stirring, drying after filtering to obtain the desulfurized coal;
[0051] The culture method of the bacterial liquid A in the step (1) is as follows: collect the Thiobacillus ferrooxidans bacterial liquid, add the sterilized medium, propagate at 29°C for 5 days, and then separate and purify the bacteria to obtain the concentration 1.5×108 A / mL bacterial solution A;
[0052] The bacterial liquid B in the step (3) is made from the bacterial liquid of Thiobacillus thiooxidans and the bacterial l...
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