CN202823128U - Hydrogen sulfide removing device with filter - Google Patents

Hydrogen sulfide removing device with filter Download PDF

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Publication number
CN202823128U
CN202823128U CN2012200478005U CN201220047800U CN202823128U CN 202823128 U CN202823128 U CN 202823128U CN 2012200478005 U CN2012200478005 U CN 2012200478005U CN 201220047800 U CN201220047800 U CN 201220047800U CN 202823128 U CN202823128 U CN 202823128U
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bioreactor
filter
hydrogen sulfide
stripping device
desulfurizing tower
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CN2012200478005U
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不公告发明人
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Fei Haoyi
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LANZHOU HONGJUN BIOLOGICAL TECHNOLOGY Co Ltd
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Abstract

The utility model relates to a hydrogen sulfide removing device with a filter. The hydrogen sulfide removing device comprises a desulphurization tower and a bioreactor; according to the desulphurization tower and the bioreactor, a ferroalumen filter and a powdered sulfur filter are arranged at the positions of liquid inlets of liquid revolving pumps, jarosite precipitates in a regenerated liquid are removed through the ferroalumen filter when the regenerated liquid flows out of the bioreactor, powdered sulfur precipitates in an absorption liquid are removed through the powdered sulfur filter when the absorption liquid flows out of the desulphurization tower, and then circulation reaction is performed. The hydrogen sulfide removing device with the filter has the advantages of being simple in structure, low in costs, easy to operate, high in desulphurization efficiency, stable in operating and suitable for removing hydrogen sulfide in gases of biogases, natural gases, industrial waste gases and the like.

Description

A kind of hydrogen sulfide stripping device with filter
Technical field
The utility model relates to a kind of hydrogen sulfide stripping device, and the desulfurization that is applicable to contain the gases such as biogas, industrial waste gas, natural gas of hydrogen sulfide gas is processed, and belongs to the environmental protecting device field.
Background technology
In biogas, natural gas, industrial waste gas, waste water, contain the hydrogen sulfide gas that has in a large number rotten-egg odour, if the hydrogen sulfide in these gases is not processed, not only can affect the commercial Application of these gases, and huge to ecological environment harm, and the serious threat resident's is healthy.
At present, using more strategy is that wet method removes hydrogen sulfide, although this sulfur method can obtain preferably desulfurized effect, has the defectives such as equipment investment volume and operating cost are higher, the desulfurizing agent Sulfur capacity is little, equipment is perishable.
Another kind of method commonly used is normal-temperature continuous regenerating oxidation iron processes, but there is the desulfurizer regeneration ability in this method, easily produces secondary pollution problems.
In recent years, biological desulfurizing technology has become the new focus of hydrogen sulfide stripping technical development.Biological desulfurizing technology receives much attention owing to advantages such as having reaction condition gentleness, difficult generation secondary pollution.Microbial-desulfurization device has been used in some biogas engineerings, and has obtained good effect, but the structural design of this device is not perfect, has brought inconvenience for routine use and maintenance.
Chinese patent literature CN2710731 discloses a kind of " biological catalystic-oxidation equipment for removing sulphur ".Its main equipment is comprised of two parts, comprises bio-packing apparatus and regeneration activating device.Chinese patent literature CN201324600Y discloses a kind of " micro-biological circulating coal-fired flue gas desulfurization equipment ".It is a kind of bio-desulfurization device that has comprised air accumulator, cooler, gas flowmeter, air pump, packed tower, circulating water chennel, water pump, flowmeter.The sulfur removal technology of above-mentioned two kinds of desulfurizers all is (shown in the reaction equation 1) that relies on iron-oxidizing bacterium self metabolism to be moved, and Fe in the solution 3+Meeting and cationoid reaction generate precipitation as jarosite (shown in reaction equation 2).
Figure BSA00000670095500011
Figure BSA00000670095500012
2Fe 3++H 2S→2Fe 2++S↓+2H +(3)
When having excessive precipitation as jarosite to occur in the solution, not only can affect the activity of iron-oxidizing bacterium, but also can stop up circulating pump and pipeline, so that desulfurizer can't normally move on the one hand.In MODEL OF CHEMICAL ABSORPTION PROCESS, Fe 3+Ion reacts with hydrogen sulfide, generates sulphur simple substance (shown in reaction equation 3), and these sulphur simple substance can affect the normal operation of desulfurizer equally.Generally adopt at present the sedimentation basin sedimentation except desulfuration simple substance, but this processing mode exists area occupied large, effect of settling is poor, the high cost problem.
Above-mentioned two kinds of desulfurizers all are to adopt free microorganism to carry out sulfur removal technology on the other hand, and unresolved excessive concentrations hydrogen sulfide is to the murder by poisoning problem of microorganism.
The utility model content
For the defective of prior art, the purpose of this utility model provides a kind of simple, convenient and practical desulfurizer.
A kind of hydrogen sulfide stripping device with filter comprises desulfurizing tower 1 and bioreactor 2, and desulfurizing tower 1 is provided with air inlet 3 and gas outlet 4, desulfurizing tower 1 interior placement filler 5, and filler 5 tops are provided with spray head 7; Biological fixation filler 22 is housed in the bioreactor 2, is fixed with iron-oxidizing bacterium on the biological fixation filler 22; Desulfurizing tower 1 is connected with absorption liquid running pump 25 by absorption liquid feed tube 6, and absorption liquid running pump 25 is connected on the bioreactor 2 through fluid flowmeter 14 and absorption liquid drain pipe 16; Bioreactor 2 is connected with regenerated liquid running pump 15 by regenerated liquid feed tube 8, and regenerated liquid running pump 15 is connected on the spray head 7 on desulfurizing tower 1 top through fluid flowmeter 14 and regenerated liquid drain pipe 11; Air pump 20 is connected with bioreactor 2 bottom aeration tubes 23 by pipeline through gas flowmeter 17, wherein, regenerated liquid running pump 15 inlet places are provided with autunezite filter 12, siderotil Filter valve 13 is installed on the autunezite filter 12, absorption liquid running pump 25 inlet places are provided with sulphur powder filter 9, and sulphur powder Filter valve 10 is installed on the sulphur powder filter 9.
A kind of hydrogen sulfide stripping device with filter, wherein bioreactor 2 air inlets are provided with gas heater 21.
A kind of hydrogen sulfide stripping device with filter, wherein pH regulating reservoir 18 is connected pond 19 and is connected with bioreactor 2 by liquor pump 26 with nutrient solution.
A kind of hydrogen sulfide stripping device with filter, wherein the biological fixation fillers 22 in the bioreactor 2 are agar or SN-263, calcium alginate, sodium alginate, PAM gel, polyvinyl alcohol gel, cellulose, silica gel, nickel alloy fiber etc.
A kind of hydrogen sulfide stripping device with filter, wherein on the bioreactor 2 interior biological fixation fillers 22 iron-oxidizing bacterium be that ferricoxidans, thiobacillus ferrooxidans belong to, in the alicyclic acid bacillus one or more.
A kind of hydrogen sulfide stripping device with filter, wherein bioreactor 2 interior temperature are 30 ± 5 ℃.
A kind of hydrogen sulfide stripping device with filter, wherein bioreactor 2 interior regenerated liquid pH are 2.0 ± 0.5.
A kind of hydrogen sulfide stripping device with filter, its middle distance desulfurizing tower 1 and 1/4 place, bioreactor 2 tops, 1/4 place, bottom is equipped with sieve plate 24.
A kind of hydrogen sulfide stripping device with filter, wherein desulfurizing tower 1 interior filler 5 is three Y rings or Raschig ring, cross diaphragm rings, Pall ring, rectangular saddle ring, iso-saddle ring, conjugate ring, flat ring etc.
The utility model is a kind of hydrogen sulfide stripping device that jointly is comprised of bioreactor and desulfurizing tower, wherein, bioreactor belongs to (Acidithiobacillus), (Acidithiobacillus ferrooxidans), alicyclic acid bacillus (Alicyclobacillus) etc. and iron ion compound system for basic take immobilization ferricoxidans (Leptospirillum ferrooxidans), thiobacillus ferrooxidans; Desulfurizing tower is with Fe 3+The system of absorbing hydrogen sulphide is the basis.This desulfurizer filler cost is low, reaching efficient desulfurized effect and need not simultaneously catalyst and the chemical reagent of consumes expensive.
By the pipeline between the feed tube of bioreactor and desulfurizing tower and running pump liquid filter is installed, and is regularly adopted liquid shower mode to come precipitation on the discharge filter, can guarantee the operation that desulfurizer is stable.
The utility model by microbial immobilized method, has solved the toxicity problem of excessive concentrations sulfide to free microorganism in bioreactor.
The gas heater that install at bioreactor air inlet place so that the internal temperature of bioreactor can keep is stable, is kept growth of microorganism.
Sieve plate all is set two ends up and down at bioreactor and desulfurizing tower, so that filler can be fixed in the desulfurizer, can shift the stable operation of assurance device along with the operation of device.
The utility model service condition is normal temperature and normal pressure, and need not expensive catalyst and chemical reagent and just can reach efficient desulfuration efficiency.When hydrogen sulfide content was 500~10000ppm, desulfuration efficiency can reach more than 98%, can in time reclaim elemental sulfur and autunezite simultaneously, provided fit closely solution for removing the hydrogen sulfide problem.
This shows, the utility model has solved existing desulfurizer and has had many technological deficiencies, and have simple structure, with low cost, easy operating, desulfuration efficiency advantages of higher, hydrogen sulfide removes in the gases such as suitable biogas, natural gas, industrial waste gas.
Description of drawings
Fig. 1 is the utility model planar structure schematic diagram.
Among the figure: 1 desulfurizing tower, 2 bioreactors, 3 air inlets, 4 gas outlets, 5 fillers, 6 absorption liquid feed tubes, 7 spray heads, 8 regenerated liquid feed tubes, 9 sulphur powder filters, 10 sulphur powder Filter valves, 11 regenerated liquid drain pipes, 12 autunezite filters, 13 siderotil Filter valves, 14 fluid flowmeters, 15 regenerated liquids running pump, 16 absorption liquid drain pipes, 17 gas flowmeters, the 18pH regulating reservoir, 19 nutrient solutions add the pond, 20 air pumps, 21 gas heaters, 22 biological fixation fillers, 23 aeration tubes, 24 sieve plates, 25 absorption liquids running pump, 26 liquor pumps.
The specific embodiment
The sulfur removal technology of indication refers in the utility model: in bioreactor by biological mode with Fe 2+Be oxidized to Fe 3+, in desulfurizing tower, utilize Fe 3+With H 2The reaction of S is hydrogen sulfide stripping, product Fe 2+Again utilized by bioreactor, reach the circulation desulfurization purpose.
The biological mode that adopts in following examples is: that utilizes that the thiobacillus ferrooxidans belongs to has a liking for the ferrous Thiobacillus of acid oxidase (Acidithiobacillus ferrooxidans) with Fe 2+Be oxidized to Fe by biological agent 3+
Embodiment 1
A kind of hydrogen sulfide stripping device with filter comprises desulfurizing tower 1 and bioreactor 2, and desulfurizing tower 1 is provided with air inlet 3 and gas outlet 4, desulfurizing tower 1 interior placement filler 5, and filler 5 tops are provided with spray head 7; Biological fixation filler 22 is housed in the bioreactor 2, is fixed with iron-oxidizing bacterium on the biological fixation filler 22; Desulfurizing tower 1 is connected with absorption liquid running pump 25 by absorption liquid feed tube 6, and absorption liquid running pump 25 is connected on the bioreactor 2 through fluid flowmeter 14 and absorption liquid drain pipe 16; Bioreactor 2 is connected with regenerated liquid running pump 15 by regenerated liquid feed tube 8, and regenerated liquid running pump 15 is connected on the spray head 7 on desulfurizing tower 1 top through fluid flowmeter 14 and regenerated liquid drain pipe 11; Air pump 20 is connected with bioreactor 2 bottom aeration tubes 23 by pipeline through gas flowmeter 17, wherein, regenerated liquid running pump 15 inlet places are provided with autunezite filter 12, siderotil Filter valve 13 is installed on the autunezite filter 12, absorption liquid running pump 25 inlet places are provided with sulphur powder filter 9, and sulphur powder Filter valve 10 is installed on the sulphur powder filter 9.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein bioreactor 2 air inlets are provided with gas heater 21.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein pH regulating reservoir 18 is connected pond 19 and is connected with bioreactor 2 by liquor pump 26 with nutrient solution.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein the biological fixation fillers 22 in the bioreactor 2 are agar or SN-263, calcium alginate, sodium alginate, PAM gel, polyvinyl alcohol gel, cellulose, silica gel, nickel alloy fiber etc.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein iron-oxidizing bacterium is ferricoxidans, has a liking in the Bacillus one or more of sour Microbacterium, sulfuration on the bioreactor 2 interior biological fixation fillers 22.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein bioreactor 2 interior temperature are 30 ± 5 ℃.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein bioreactor 2 interior regenerated liquid pH are 2.0 ± 0.5.
A kind of hydrogen sulfide stripping device with filter of the utility model, its middle distance desulfurizing tower 1 and 1/4 place, bioreactor 2 tops, 1/4 place, bottom is equipped with sieve plate 24.
A kind of hydrogen sulfide stripping device with filter of the utility model, wherein desulfurizing tower 1 interior filler 5 is three Y rings or Raschig ring, cross diaphragm rings, Pall ring, rectangular saddle ring, iso-saddle ring, conjugate ring, flat ring etc.
Embodiment 2
The utility model operation principle:
Figure BSA00000670095500051
(bioreactor)
2Fe 3++ H 2S → 2Fe 2++ S ↓+2H +(desulfurizing tower)
Hydrogen sulfide gas is entered in the desulfurizing tower 1 by air inlet 3, when passing through filler 5 and microbial culture medium (the 9K nutrient solution basic composition is (NH 4) 2SO 4, K 2HPO 4, MgSO 47H 2O, KCl, Ca (NO 3) 2, FeSO 47H 2O) Fe in 3+Reaction forms elemental sulfur and Fe 2+, in order to narrate conveniently, the nutrient solution in this moment desulfurizing tower 1 is called absorption liquid.Start absorption liquid running pump 25, the liquid that has absorbed hydrogen sulfide in the desulfurizing tower 1 is turned round pump 25 process Pipeline transports in bioreactor 2 by absorption liquid, bioreactor 2 utilizes immobilized Thiobacillus ferrooxidans in the filler 22 to finish the regeneration of absorption liquid, is about to the Fe in the absorption liquid 2+Be oxidized to Fe 3+, be called regenerated liquid with the nutrient solution in the bioreactor 2 this moment; Start regenerated liquid running pump 15, regenerated liquid running pump 15 is transported to regenerated liquid in the spray head 7 on desulfurizing tower 1 top by pipeline, and spray head 7 is sprayed to regenerated liquid in the desulfurizing tower 1, absorbing hydrogen sulphide gas.
Regenerated liquid enters that regenerated liquid running pump 15 is front removes the precipitation as jarosite that contains in the regenerated liquid through autunezite filters 12, and absorption liquid enters that absorption liquid running pump 25 is front removes the sulphur powder that contains in the absorption liquid through over cure powder filter 9.Autunezite filter 12 is provided with siderotil Filter valve 13, and sulphur powder filter 9 is provided with sulphur powder Filter valve 10, regularly by the valve of opening on the filter precipitation of adsorbing on the filter is washed discharge.
Air pump 20 is connected with bioreactor bottom aeration tube 23 by gas heater 21, gas flowmeter 17, and when blasting air and carry out aeration, the fluid temperature that can effectively control bioreactor is 25~35 ℃; By the pH in liquor pump 26, the pH regulating reservoir 18 control bioreactors 2 in 1.5~2.5 scopes; Add pond 19 by nutrient solution and regularly in bioreactor 2, add inorganic salts, replenish the nutritional need in the microorganism growth process; In the process of regenerated liquid and absorption liquid circulation all by fluid flowmeter 14 controlled circulation flow quantities.
More than by the mode of exemplary embodiment the utility model is carried out exemplary explanation, but the utility model is not limited to this.Be construed as, in the situation that does not depart from design of the present utility model and operation principle, the equipment among the above embodiment, material, install and use and to replace by other replacements or equivalent processes that those skilled in the art know.

Claims (9)

1. hydrogen sulfide stripping device with filter, comprise desulfurizing tower (1) and bioreactor (2), desulfurizing tower (1) is provided with air inlet (3) and gas outlet (4), place filler (5) in the desulfurizing tower (1), filler (5) top is provided with spray head (7); Biological fixation filler (22) is housed in the bioreactor (2), and the biological fixation filler is fixed with iron-oxidizing bacterium on (22); Desulfurizing tower (1) is connected with absorption liquid running pump (25) by absorption liquid feed tube (6), and absorption liquid running pump (25) is connected on the bioreactor (2) through fluid flowmeter (14) and absorption liquid drain pipe (16); Bioreactor (2) is connected with regenerated liquid running pump (15) by regenerated liquid feed tube (8), and regenerated liquid running pump (15) is connected on the spray head (7) on desulfurizing tower (1) top through fluid flowmeter (14) and regenerated liquid drain pipe (11); Air pump (20) is connected with bioreactor (2) bottom aeration tube (23) by pipeline through gas flowmeter (17), it is characterized in that, regenerated liquid running pump (15) inlet place is provided with autunezite filter (12), siderotil Filter valve (13) is installed on the autunezite filter (12), absorption liquid running pump (25) inlet place is provided with sulphur powder filter (9), and sulphur powder Filter valve (10) is installed on the sulphur powder filter (9).
2. the hydrogen sulfide stripping device with filter according to claim 1 is characterized in that, bioreactor (2) air inlet is provided with gas heater (21).
3. the hydrogen sulfide stripping device with filter according to claim 1 is characterized in that, pH regulating reservoir (18) is connected pond (19) and is connected with bioreactor (2) by liquor pump (26) with nutrient solution.
4. the hydrogen sulfide stripping device with filter according to claim 1, it is characterized in that the biological fixation filler (22) in the bioreactor (2) is agar or SN-263, calcium alginate, sodium alginate, PAM gel, polyvinyl alcohol gel, cellulose, silica gel, nickel alloy fiber etc.
5. the hydrogen sulfide stripping device with filter according to claim 1, it is characterized in that the upper iron-oxidizing bacterium of the interior biological fixation filler of bioreactor (2) (22) is one or more in ferricoxidans, thiobacillus ferrooxidans's genus, the alicyclic acid bacillus.
6. the hydrogen sulfide stripping device with filter according to claim 1 is characterized in that, the interior temperature of bioreactor (2) is 30 ± 5 ℃.
7. the hydrogen sulfide stripping device with filter according to claim 1 is characterized in that, the pH of the interior regenerated liquid of bioreactor (2) is 2.0 ± 0.5.
8. the hydrogen sulfide stripping device with filter according to claim 1 is characterized in that, apart from desulfurizing tower (1) and 1/4 place, bioreactor (2) top, 1/4 place, bottom is equipped with sieve plate (24).
9. the hydrogen sulfide stripping device with filter according to claim 1 is characterized in that, the interior filler of desulfurizing tower (1) (5) is three Y rings or Raschig ring, cross diaphragm rings, Pall ring, rectangular saddle ring, iso-saddle ring, conjugate ring, flat ring etc.
CN2012200478005U 2012-02-14 2012-02-14 Hydrogen sulfide removing device with filter Expired - Lifetime CN202823128U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107185393A (en) * 2017-06-26 2017-09-22 佛山瀚兽环境科技服务有限公司 Industrial VOC processing systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107185393A (en) * 2017-06-26 2017-09-22 佛山瀚兽环境科技服务有限公司 Industrial VOC processing systems

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C14 Grant of patent or utility model
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TR01 Transfer of patent right

Effective date of registration: 20170802

Address after: 748100 Gansu province Longxi County Gong Chang Zhen Xi Jiao Ping 1705 building 3 unit 202 room

Patentee after: Fei Haoyi

Address before: Chengguan District of Gansu city of Lanzhou province Donggang West Road 730000 No. 249 Lanzhou University Science and technology garden room 119-6

Patentee before: LANZHOU HONGJUN BIOLOGICAL TECHNOLOGY CO., LTD.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130327