Preparation method for adsorbent removing hydrogen sulfide, carbonyl sulfide and carbon disulfide simultaneously
A carbon disulfide, hydrogen sulfide technology, applied in chemical instruments and methods, other chemical processes, gas treatment, etc., can solve problems such as unfavorable promotion and increased cost
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Embodiment 1
[0026] A preparation method for an adsorbent for simultaneously removing hydrogen sulfide, carbonyl sulfide and carbon disulfide, specifically comprising the following steps:
[0027] (1) Clean the tobacco rods, chop them up, dry them, put them in a tube furnace, and roast them at 400°C for 3 hours under the protection of nitrogen to make activated carbon;
[0028] (2) Grind the activated carbon prepared in step (1) to 40 mesh, then wash it with water 4 times until the supernatant has no turbidity suspended, put it in an oven and dry it at 110°C for 5 hours;
[0029] (3) According to the mass ratio of activated carbon and KOH solid powder of 1:4, stir the activated carbon and KOH solid powder dried in step (2) evenly, put them into a tube furnace, and roast them at 700°C for 2 hours under the protection of inert gas. ;
[0030] (4) Take out the activated carbon roasted in step (3) and add HNO 3 Stir the solution until the pH is 6~7, then add water to wash until the activated...
Embodiment 2
[0034] A preparation method for an adsorbent for simultaneously removing hydrogen sulfide, carbonyl sulfide and carbon disulfide, specifically comprising the following steps:
[0035] (1) Clean the coconut shell, chop it, dry it, put it into a tube furnace, and roast it at 600°C for 2 hours under the protection of nitrogen to make activated carbon;
[0036] (2) Grind the activated carbon prepared in step (1) to 50 mesh, then wash 5 times with water until the supernatant has no turbidity suspended, put it in an oven and dry at 130°C for 3 hours;
[0037] (3) According to activated carbon and K 2 CO 3 The solid powder mass ratio is the ratio of 1:2 with the activated carbon after step (2) drying and K 2 CO 3 Stir the solid powder evenly, put it into a tube furnace, and bake it at 600°C for 3 hours under the protection of inert gas;
[0038] (4) Take out the activated carbon roasted in step (3), add HCl solution and stir until the pH is 6~7, then add water to wash until the a...
Embodiment 3
[0042] A preparation method for an adsorbent for simultaneously removing hydrogen sulfide, carbonyl sulfide and carbon disulfide, specifically comprising the following steps:
[0043] (1) Wash, chop and dry the apricot shells, put them in a tube furnace, and roast them at 900°C for 1 hour under the protection of nitrogen to obtain activated carbon;
[0044] (2) Grind the activated carbon prepared in step (1) to 60 mesh, then wash 6 times with water until the supernatant has no turbidity suspended, put it in an oven and dry at 140°C for 2 hours;
[0045] (3) According to activated carbon and ZnCl 2 The solid powder mass ratio is the ratio of step (2) dried activated carbon and ZnCl 2 Stir the solid powder evenly, put it into a tube furnace, and bake it at 800°C for 1 hour under the protection of an inert gas;
[0046] (4) Take out the activated carbon roasted in step (3), add H 3 PO 4 Stir the solution until the pH is 6~7, then add water to wash until the activated carbon b...
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