CN102872713A - Desulfurization and regeneration device for removing hydrogen sulfide by utilizing gas transmission pipeline - Google Patents

Desulfurization and regeneration device for removing hydrogen sulfide by utilizing gas transmission pipeline Download PDF

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Publication number
CN102872713A
CN102872713A CN2012104123849A CN201210412384A CN102872713A CN 102872713 A CN102872713 A CN 102872713A CN 2012104123849 A CN2012104123849 A CN 2012104123849A CN 201210412384 A CN201210412384 A CN 201210412384A CN 102872713 A CN102872713 A CN 102872713A
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transmission pipeline
gas transmission
gas
desulfurization
hydrogen sulfide
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CN2012104123849A
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CN102872713B (en
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林科
张旭之
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Beijing SJ Environmental Protection and New Material Co Ltd
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Beijing SJ Environmental Protection and New Material Co Ltd
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Abstract

The invention discloses a desulfurization and regeneration device for removing H2S by utilizing a gas transmission pipeline. The desulfurization and regeneration device for removing the H2S by utilizing the gas transmission pipeline comprises the gas transmission pipeline. The gas transmission pipeline is basically arranged horizontally; the diameter of the gas transmission pipeline is greater than or equal to 0.3m; the length-diameter ratio of the gas transmission pipeline is greater than or equal to 10; the gas transmission pipeline is provided with a liquid outlet; the tail end of the gas transmission pipeline is provided with a gas outlet; a regeneration tank is arranged below the gas transmission pipeline; an aerating device is arranged in the regeneration tank; and a plurality of atomizing nozzles used for jetting doctor solution or desulfurized slurry are arranged in sequence along the gas transmission direction in the gas transmission pipeline. According to the desulfurization and regeneration device for removing the H2S in gas by utilizing the gas transmission pipeline, as the gas transmission pipeline for the gas is adopted to serve as a place for removing the H2S, compared with a desulfurization tower or other desulfurization reactors in the prior art, desulfurizers do not need to be additionally constructed, and thereby, the equipment construction cost is effectively reduced.

Description

A kind of desulfurization, regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide
Technical field
The invention belongs to the gas purification field, be specifically related to a kind of desulfurization that utilizes gas transmission pipeline to remove H2S, regenerating unit.
Background technology
H 2S is a kind of poisonous, harmful severe corrosive impurity that extensively is present in the gases such as coke-stove gas, water-gas, natural gas, biogas, crude synthesis gas, contains H 2When the above-mentioned gas of S is used as fuel, H wherein 2The product S O that S and its burning generate 2Be noxious material, can cause the pollution of environment, so above-mentioned gas must be processed through desulfurizing and purifying before the use that acts as a fuel.
In order to guarantee the effect of desulfurization, be used for removing H in the prior art 2Usually all be provided with filler or other desulfurization member in the desulfurizer of S, such as Chinese science and technology document " architecture advances and the application of crude synthesis gas cleaning system desulfurizing tower " (in August, 2007, large nitrogenous fertilizer, the 4th phase of the 30th volume) a kind of crude synthesis gas H for removing take residual oil as raw material gas making is disclosed in 2The desulfurizing tower of S, the tower height 39m of this desulfurizing tower, internal diameter 2.2m is filled with 2 layers of blister configuration on the top of described desulfurizing tower, and hollow-spraying-tower is adopted in the bottom; Be provided with a sprinkle shower nozzle at the top of desulfurizing tower, middle part and bottom are provided with respectively 2 layers of atomizer, and every layer comprises that 5 diameters are the atomizer of 65mm; This desulfurizing tower is when actual motion, and crude synthesis gas passes at the bottom of tower, contacts with the anthraquinone disulfonic acid sodium solution that sprays on the tower, reaches to remove H 2The effect of S.
Above-mentioned desulfurizing tower has higher desulfuration efficiency by the blister configuration Effective Raise the has been set contact of gas-liquid, after above-mentioned desulfurizing tower is processed, and the H in the crude synthesis gas 2S content is by 800-1000mg/m 3Drop to 2mg/m 3Below, but in above-mentioned desulfurizing tower, owing to be filled with blister configuration in the desulfurizing tower, on the one hand, cause the SR of desulfurizing tower to increase, operation energy consumption is higher; On the other hand, long-term use causes the blister configuration place that fouling occurs easily, thereby stops up desulfurizing tower.In order to overcome this technical problem, reduce operation energy consumption, in the prior art, the spray void tower has obtained using more widely gradually, and the spray void tower has been simplified the member setting in the tower, passes through atomizer, doctor solution is powerful, the high density atomizing of middle and upper part at tower, form a large amount of microparticle spheroids, the microparticle spheroid contacts with the process gas that enters from the tower bottom, totally is reverse mobile impacting type contact under the liquid on the gas.Its typical feature is that the gas-liquid two-phase uniformity of mixing is high, microparticle spheroid contact interface is large, mass-transfer efficiency is high, the utilization rate of doctor solution high, system loading is little, operation energy consumption is less and the problem of stifled tower can not occur.
Although it is resistance and system loading that above-mentioned spray void tower has lower tower, effectively reduced the operation energy consumption of desulfurizer, above-mentioned spray void tower also is not suitable for processing H 2The gas that S concentration is higher, H in gas 2When S content was higher, above-mentioned spray void tower was difficult to satisfy the requirement of high purification usually.Therefore, in the prior art, H in gas 2When S content is higher, in order to reach higher desulfuration efficiency, usually the series connection of a plurality of spray void towers can be arranged, perhaps will spray the setting of successively connecting of void tower and packed tower, so, just increase again construction cost and the operation energy consumption of equipment; And how when keeping low equipment cost and operation energy consumption, can also guarantee the H that takes off of desulfurizer 2S efficient is a still unsolved difficult problem of prior art.
Summary of the invention
In order to solve the desulfurizer that is used for removing the high-sulfur concentration gases in the prior art, the problem that the construction cost of its equipment and operation energy consumption are higher provides the gas transmission pipeline that utilizes gas that a kind of construction cost is cheap, operation energy consumption is low and have than high desulfurization efficiency to remove H in the gas 2The device of S.
The gas transmission pipeline that utilizes of the present invention removes H in the gas 2The technical scheme of the device of S is:
A kind of desulfurization, regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide comprises:
Gas transmission pipeline, described gas transmission pipeline basic horizontal arranges, the diameter of described gas transmission pipeline is greater than or equal to 0.3m, draw ratio is more than or equal to 10, gas flow rate in the described gas transmission pipeline is 3-10m/s, is provided with one or more liquid outlet at described gas transmission pipeline;
Along the throughput direction of gas, be provided with the gas outlet at the end of described gas transmission pipeline;
Below described gas transmission pipeline, be provided with regeneration tank, in described regeneration tank, be provided with aerator, be communicated with each liquid outlet on the described gas transmission pipeline and be provided with drain pipe, described drain pipe extends to the inside of described regeneration tank, and described drain pipe is connected with the inside of described regeneration tank by the liquid outlet of himself;
In described gas transmission pipeline, be disposed with a plurality of atomizers for injection desulfurization liquid or desulfurization slurry along the throughput direction of gas.
Described atomizer is along the axis setting of described gas transmission pipeline.
The throughput direction of the gas in the injection direction of described atomizer and the described gas transmission pipeline is identical.
The diameter of described gas transmission pipeline is 0.5-3.6m.
The draw ratio of gas transmission pipeline is 10-30.
The draw ratio of gas transmission pipeline is 20.
Spacing between per two adjacent described atomizers is 0.2-2m.
Described desulfurization slurry is the FeOOH slurries.
The concentration of described FeOOH slurries is 5-30wt%; The particle size range of described FeOOH is 5-500 μ m.
Doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank by described drain pipe, and the desulfurization waste liquor in the described drain pipe forms fluid-tight.
Bottom at described regeneration tank is provided with circulating pump, and described circulation delivery side of pump is connected with described atomizer.
Top at described regeneration tank is provided with overfall.
The gas transmission pipeline that utilizes of the present invention removes H in the gas 2The advantage of the device of S is:
(1) gas transmission pipeline that utilizes of the present invention removes H in the gas 2The device of S adopts the gas transmission pipeline of gas as desulfurization H 2The place of S is compared with desulfurizing tower of the prior art or other desulfurization reactor, does not need additionally to build desulfurizer, effectively reduces the construction cost of equipment.In addition, the present invention limits the diameter of described gas transmission pipeline greater than 0.3m, and draw ratio is more than or equal to 10, and the gas flow rate in the described gas transmission pipeline is 3-10m/s; In the prior art, be used for removing H 2Gas line speed in the desulfurizing tower of S is normally about 1m/s, gas in the gas transmission pipeline then has higher flow velocity, and described gas transmission pipeline is basic hollow setting, other member is not established in inside, so that the pressure drop of described gas transmission pipeline is extremely low, this is just so that the draw ratio of described gas transmission pipeline can arrange is longer, gas in the gas transmission pipeline is in the process of carrying along pipeline, gas with each atomizer ejection comes in contact successively, Effective Raise gas-liquid mass transfer area, thereby guaranteed to utilize the gas transmission pipeline desulfurization to have higher desulfuration efficiency.As preferred embodiment, the draw ratio that the present invention also arranges gas transmission pipeline is 10-30.Because the length of gas transmission pipeline is usually longer in the practical application, so utilization of the present invention utilizes gas transmission pipeline to remove H in the gas 2S when reducining the construction costs, has also effectively guaranteed desulfuration efficiency.
The gas transmission pipeline that utilizes of the present invention removes H in the gas 2The device of S also is provided with regeneration tank below described gas transmission pipeline, be provided with aerator in described regeneration tank, thereby has realized the recovery to desulfurization slurry or sweetening liq; As preferred embodiment, be communicated with liquid outlet on the described gas transmission pipeline and be provided with drain pipe, the liquid outlet of described drain pipe is arranged on the inside of described regeneration tank, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank by described drain pipe, and the desulfurization waste liquor in the described drain pipe forms fluid-tight.The present invention forms fluid-tight by the desulfurization waste liquor that arranges in the drain pipe, so that the air of aerator output can by described drain pipe overflow to described gas transmission pipeline, can not exert an influence to the gas flow in the gas transmission pipeline.The present invention arranges the below that described regeneration tank is positioned at described gas transmission pipeline, so that desulfurization waste liquor can be by described drain pipe from flowing into described regeneration tank under action of gravitation, and do not need to arrange again the power set that extract waste liquid, reduced the energy consumption of removal process; In addition, the regeneration tank that is positioned at described gas transmission pipeline below can be imbedded the below ground setting when reality is built, effectively reduced floor space.
The gas transmission pipeline that utilizes of the present invention removes H in the gas 2The device of S is provided with circulating pump in the bottom of described regeneration tank, and described circulation delivery side of pump is connected with described atomizer.By utilizing described aerator in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, again send into atomizer and the FeOOH slurries of lower floor are recycled pump, realized the recycling of FeOOH.
(2) gas transmission pipeline that utilizes of the present invention removes H in the gas 2The device of S, it is the FeOOH slurries that described doctor solution is set, reason is, the FeOOH slurries can with H 2S reacts fast, and it is removed rapidly.As preferred embodiment, in order further to improve the desulfuration efficiency of device, the concentration that the present invention also limits described FeOOH slurries is 5-30wt%; The grain diameter of described FeOOH is 5-500 μ m.
(3) gas transmission pipeline that utilizes of the present invention removes H in the gas 2The device of S, described atomizer is set near the center setting of described gas transmission pipeline, because the gas transmission pipeline diameter among the present invention is less, thereby just so that from the liquid particle of described atomizer ejection can the gassy conveyance conduit whole cross section, effectively increased the gas-liquid contact area.
(4) gas transmission pipeline that utilizes of the present invention removes H in the gas 2The device of S, the throughput direction of the gas in the injection direction that described atomizer is set and the described gas transmission pipeline is identical, arrange than spray direction and gas throughput direction adverse current, the advantage that arranges like this is that the liquid particle that sprays can promote gas and carry from described atomizer, thereby so that gas does not produce pressure drop in course of conveying, the adverse current set-up mode under the liquid on the gas in the spray void tower in the prior art has further reduced the energy consumption of operation.
Description of drawings
Content of the present invention is easier to be expressly understood in order to make, and below in conjunction with specific embodiments and the drawings content of the present invention is described in further detail, wherein
Figure 1 shows that the gas transmission pipeline that utilizes of the present invention removes H in the gas 2The part-structure figure of the device of S;
Figure 2 shows that the gas transmission pipeline that utilizes that is provided with circulating pump of the present invention removes H in the gas 2The part-structure figure of the device of S;
Wherein Reference numeral is:
The 1-gas transmission pipeline; The 2-liquid outlet; The 3-gas outlet; The 4-atomizer; The 5-drain pipe; The 6-aerator; The 7-circulating pump; The 8-regeneration tank.
The specific embodiment
Embodiment 1
The gas transmission pipeline 1 that utilizes described in the present embodiment removes the device of hydrogen sulfide in the gas, as shown in Figure 1, comprising:
For delivery of the gas transmission pipeline 1 of coke-stove gas, described gas transmission pipeline 1 is horizontally disposed with, and the diameter of described gas transmission pipeline 1 is 0.3m, long 20m, and the gas flow rate in the described gas transmission pipeline 1 is 10m/s; Along the throughput direction of gas, be provided with a liquid outlet 2 and gas outlet 3 at the end of described gas transmission pipeline 1;
In described gas transmission pipeline 1, throughput direction along gas is disposed with 30 atomizers 4 that are used for injection desulfurization liquid, the distance that per two adjacent described atomizers are 4 is 0.2m, as preferred embodiment, atomizer 4 described in the present embodiment is along the axis setting of described gas transmission pipeline 1, and the throughput direction of the gas in the injection direction of described atomizer 4 and the described gas transmission pipeline 1 is identical.
The device that utilizes gas transmission pipeline 1 to remove hydrogen sulfide in the gas described in the present embodiment is provided with regeneration tank 8 below described gas transmission pipeline 1, be provided with aerator 6 in described regeneration tank 8; Top at described regeneration tank is provided with overfall.Be communicated with liquid outlet 2 on the described gas transmission pipeline 1 and be provided with drain pipe 5, described drain pipe 5 extends to the inside of described regeneration tank 8, described drain pipe 5 is connected with the inside of described regeneration tank 8 by the liquid outlet of himself, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank 8 by described drain pipe 5, and the desulfurization waste liquor in the described drain pipe 5 forms fluid-tight.
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas when actual motion described in the present embodiment, the flow velocity of described coke-stove gas is 10m/s; Spray into desulfurization slurry by described atomizer 4 in described gas transmission pipeline 1, the desulfurization slurry described in the present embodiment is amorphous FeOOH slurries, and the spray flux of described desulfurization slurry is 8m 3/ h; The concentration of described amorphous FeOOH slurries is 20wt%, and the particle size range of described amorphous FeOOH is 5-20 μ m.Described desulfurization slurry is finished the desulfurization waste liquor that forms after the desulfurization and is entered regeneration tank 8 by described drain pipe 5, by utilizing described aerator 6 in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes amorphous FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, and by described overfall outflow, the FeOOH slurries that lower floor's recovery obtains then can be back to described atomizer and recycle.
The H of the coke-stove gas of processing without desulfurization in the gas transmission pipeline described in the present embodiment 1 2S content is 1000mg/L, H in 3 places, the gas outlet coke-stove gas out 2S content is down to 15mg/L.
Embodiment 2
The gas transmission pipeline 1 that utilizes described in the present embodiment removes the device of hydrogen sulfide in the gas, as shown in Figure 1, comprising:
For delivery of the gas transmission pipeline 1 of coke-stove gas, described gas transmission pipeline 1 is horizontally disposed with, and the diameter of described gas transmission pipeline 1 is 2.5m, long 25m, and the gas flow rate in the described gas transmission pipeline 1 is 3m/s; Along the throughput direction of gas, be provided with a liquid outlet 2 and gas outlet 3 at the end of described gas transmission pipeline 1;
In described gas transmission pipeline 1, throughput direction along gas is disposed with 25 atomizers 4 that are used for injection desulfurization liquid, the distance that per two adjacent described atomizers are 4 is 0.8m, as preferred embodiment, atomizer 4 described in the present embodiment is along the axis setting of described gas transmission pipeline 1, and the throughput direction of the gas in the injection direction of described atomizer 4 and the described gas transmission pipeline 1 is identical.
The device that utilizes gas transmission pipeline 1 to remove hydrogen sulfide in the gas described in the present embodiment is provided with regeneration tank 8 below described gas transmission pipeline 1, be provided with aerator 6 in described regeneration tank 8; Top at described regeneration tank is provided with overfall.Be communicated with liquid outlet 2 on the described gas transmission pipeline 1 and be provided with drain pipe 5, described drain pipe 5 extends to the inside of described regeneration tank 8, described drain pipe 5 is connected with the inside of described regeneration tank 8 by the liquid outlet of himself, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank 8 by described drain pipe 5, and the desulfurization waste liquor in the described drain pipe 5 forms fluid-tight.
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas when actual motion described in the present embodiment, the flow velocity of described coke-stove gas is 3m/s; Spray into desulfurization slurry by described atomizer 4 in described gas transmission pipeline 1, the desulfurization slurry described in the present embodiment is amorphous FeOOH slurries, and the spray flux of described desulfurization slurry is 84m 3/ h; The concentration of described amorphous FeOOH slurries is 30wt%, and the particle size range of described amorphous FeOOH is 5-20 μ m.Described desulfurization slurry is finished the desulfurization waste liquor that forms after the desulfurization and is entered regeneration tank 8 by described drain pipe 5, by utilizing described aerator 6 in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes amorphous FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, and by described overfall outflow, the FeOOH slurries that lower floor's recovery obtains then can be back to described atomizer and recycle.
The H of the coke-stove gas of processing without desulfurization in the gas transmission pipeline described in the present embodiment 1 2S content is 1000mg/L, H in 3 places, the gas outlet coke-stove gas out 2S content is down to 10mg/L.
Embodiment 3
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas as shown in Figure 1 described in the present embodiment, comprising:
For delivery of the gas transmission pipeline 1 of coke-stove gas, described gas transmission pipeline 1 is horizontally disposed with, and the diameter of described gas transmission pipeline 1 is 0.5m, long 35m, and the gas flow rate in the described gas transmission pipeline 1 is 10m/s; Along the throughput direction of gas, be provided with a liquid outlet 2 and gas outlet 3 at the end of described gas transmission pipeline 1;
In described gas transmission pipeline 1, throughput direction along gas is disposed with 30 atomizers 4 that are used for injection desulfurization liquid, the distance that per two adjacent described atomizers are 4 is 1m, 3 distance is 6m along last atomizer 4 of gas throughput direction and described gas outlet, atomizer 4 described in the present embodiment is along the axis setting of described gas transmission pipeline 1, and the throughput direction of the gas in the injection direction of described atomizer 4 and the described gas transmission pipeline 1 is identical.
The device that utilizes gas transmission pipeline 1 to remove hydrogen sulfide in the gas described in the present embodiment is provided with regeneration tank 8 below described gas transmission pipeline 1, be provided with aerator 6 in described regeneration tank 8; Top at described regeneration tank is provided with overfall.Be communicated with liquid outlet 2 on the described gas transmission pipeline 1 and be provided with drain pipe 5, described drain pipe 5 extends to the inside of described regeneration tank 8, described drain pipe 5 is connected with the inside of described regeneration tank 8 by the liquid outlet of himself, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank 8 by described drain pipe 5, and the desulfurization waste liquor in the described drain pipe 5 forms fluid-tight.
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas when actual motion described in the present embodiment, in described gas transmission pipeline 1, spray into desulfurization slurry by described atomizer 4, desulfurization slurry described in the present embodiment is the Alpha-hydroxy iron oxide slurry, and the spray flux of described desulfurization slurry is 10m 3/ h; The concentration of described Alpha-hydroxy iron oxide slurry is 10wt%, and the particle size range of described Alpha-hydroxy iron oxide slurry is 20-100 μ m, and the desulfurization slurry waste liquid of finishing after the desulfurization is discharged from described liquid outlet 2.Described desulfurization slurry is finished the desulfurization waste liquor that forms after the desulfurization and is entered regeneration tank 8 by described drain pipe 5, by utilizing described aerator 6 in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes amorphous FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, and by described overfall outflow, the FeOOH slurries that lower floor's recovery obtains then can be back to described atomizer and recycle.
The H of the coke-stove gas of processing without desulfurization in the gas transmission pipeline described in the present embodiment 1 2S content is 1000mg/L, H in 3 places, the gas outlet coke-stove gas out 2S content is down to 8mg/L.
Embodiment 4
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas as shown in Figure 1 described in the present embodiment, comprising:
For delivery of the gas transmission pipeline 1 of coke-stove gas, described gas transmission pipeline 1 is horizontally disposed with, and the diameter of described gas transmission pipeline 1 is 3.6m, long 72m, and the gas flow rate in the described gas transmission pipeline 1 is 5m/s; Along the throughput direction of gas, be provided with a liquid outlet 2 and gas outlet 3 at the end of described gas transmission pipeline 1;
In described gas transmission pipeline 1, throughput direction along gas is disposed with 36 atomizers 4 that are used for injection desulfurization liquid, the distance that per two adjacent described atomizers are 4 is 2m, 3 distance is 2m along last atomizer 4 of gas throughput direction and described gas outlet, atomizer 4 described in the present embodiment is along the axis setting of described gas transmission pipeline 1, and the throughput direction of the gas in the injection direction of described atomizer 4 and the described gas transmission pipeline 1 is identical.
The device that utilizes gas transmission pipeline 1 to remove hydrogen sulfide in the gas described in the present embodiment is provided with regeneration tank 8 below described gas transmission pipeline 1, be provided with aerator 6 in described regeneration tank 8; Top at described regeneration tank is provided with overfall.Be communicated with liquid outlet 2 on the described gas transmission pipeline 1 and be provided with drain pipe 5, described drain pipe 5 extends to the inside of described regeneration tank 8, described drain pipe 5 is connected with the inside of described regeneration tank 8 by the liquid outlet of himself, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank 8 by described drain pipe 5, and the desulfurization waste liquor in the described drain pipe 5 forms fluid-tight.
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas when actual motion described in the present embodiment, in described gas transmission pipeline 1, spray into desulfurization slurry by described atomizer 4, desulfurization slurry described in the present embodiment is the Alpha-hydroxy iron oxide slurry, and the spray flux of described desulfurization slurry is 100m 3/ h; The concentration of described Alpha-hydroxy iron oxide slurry is 15wt%, and the particle size range of described Alpha-hydroxy iron oxide slurry is 300-500 μ m; The desulfurization slurry waste liquid of finishing after the desulfurization is discharged from described liquid outlet 2.Described desulfurization slurry is finished the desulfurization waste liquor that forms after the desulfurization and is entered regeneration tank 8 by described drain pipe 5, by utilizing described aerator 6 in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes amorphous FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, and by described overfall outflow, the FeOOH slurries that lower floor's recovery obtains then can be back to described atomizer and recycle.
The H of the coke-stove gas of processing without desulfurization in the gas transmission pipeline described in the present embodiment 1 2S content is 1000mg/L, H in 3 places, the gas outlet coke-stove gas out 2S content is down to 2mg/L.
Embodiment 5
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas as shown in Figure 1 described in the present embodiment, comprising:
For delivery of the gas transmission pipeline 1 of coke-stove gas, described gas transmission pipeline 1 is horizontally disposed with, and the diameter of described gas transmission pipeline 1 is 1.8m, long 50m, and the gas flow rate in the described gas transmission pipeline 1 is 6m/s; Along the throughput direction of gas, be provided with a liquid outlet 2 and gas outlet 3 at the end of described gas transmission pipeline 1;
In described gas transmission pipeline 1, throughput direction along gas is disposed with 50 atomizers 4 that are used for injection desulfurization liquid, the distance that per two adjacent described atomizers are 4 is 1m, 3 distance is 1m along last atomizer 4 of gas throughput direction and described gas outlet, atomizer 4 described in the present embodiment is along the axis setting of described gas transmission pipeline 1, and the throughput direction of the gas in the injection direction of described atomizer 4 and the described gas transmission pipeline 1 is identical.
The device that utilizes gas transmission pipeline 1 to remove hydrogen sulfide in the gas described in the present embodiment is provided with regeneration tank 8 below described gas transmission pipeline 1, be provided with aerator 6 in described regeneration tank 8; Top at described regeneration tank is provided with overfall.Be communicated with liquid outlet 2 on the described gas transmission pipeline 1 and be provided with drain pipe 5, described drain pipe 5 extends to the inside of described regeneration tank 8, described drain pipe 5 is connected with the inside of described regeneration tank 8 by the liquid outlet of himself, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank 8 by described drain pipe 5, and the desulfurization waste liquor in the described drain pipe 5 forms fluid-tight.
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas when actual motion described in the present embodiment, in described gas transmission pipeline 1, spray into desulfurization slurry by described atomizer 4, desulfurization slurry described in the present embodiment is amorphous FeOOH slurries, and the spray flux of described desulfurization slurry is 85m 3/ h; The concentration of described amorphous FeOOH slurries is 20wt%, and the particle size range of described amorphous FeOOH slurries is 200-300 μ m; The desulfurization slurry waste liquid of finishing after the desulfurization is discharged from described liquid outlet 2.Described desulfurization slurry is finished the desulfurization waste liquor that forms after the desulfurization and is entered regeneration tank 8 by described drain pipe 5, by utilizing described aerator 6 in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes amorphous FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, and by described overfall outflow, the FeOOH slurries that lower floor's recovery obtains then can be back to described atomizer and recycle.
The H of the coke-stove gas of processing without desulfurization in the gas transmission pipeline described in the present embodiment 1 2S content is 1000mg/L, H in 3 places, the gas outlet coke-stove gas out 2S content is down to 2mg/L.
Embodiment 6
Utilize device that gas transmission pipeline 1 removes hydrogen sulfide in the gas as shown in Figure 2 described in the present embodiment, comprising:
For delivery of the gas transmission pipeline 1 of coke-stove gas, described gas transmission pipeline 1 is horizontally disposed with, and the diameter of described gas transmission pipeline 1 is 2m, long 60m, and the gas flow rate in the described gas transmission pipeline 1 is 10m/s; Along the throughput direction of gas, be provided with a gas outlet 3 at the end of described gas transmission pipeline 1, be provided with a plurality of liquid outlets 2 at described gas transmission pipeline 1;
In described gas transmission pipeline 1, throughput direction along gas is disposed with 50 atomizers 4 that are used for injection desulfurization liquid, the distance that per two adjacent described atomizers are 4 is 1m, 3 distance is 10m along last atomizer 4 of gas throughput direction and described gas outlet, atomizer 4 described in the present embodiment is along the axis setting of described gas transmission pipeline 1, and the throughput direction of the gas in the injection direction of described atomizer 4 and the described gas transmission pipeline 1 is identical.
The device that utilizes gas transmission pipeline 1 to remove hydrogen sulfide in the gas described in the present embodiment is provided with regeneration tank 8 below described gas transmission pipeline 1, be provided with aerator 6 in described regeneration tank 8; Top at described regeneration tank is provided with overfall.
Be communicated with each liquid outlet 2 on the described gas transmission pipeline 1 and be provided with drain pipe 5, described drain pipe 5 extends to the inside of described regeneration tank 8, described drain pipe 5 is connected with the inside of described regeneration tank 8 by the liquid outlet of himself, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank 8 by described drain pipe 5, and the desulfurization waste liquor in the described drain pipe 5 forms fluid-tight; Bottom at described regeneration tank 8 also is provided with circulating pump 7, and the outlet of described circulating pump 7 is connected with described atomizer 4.
The gas transmission pipeline 1 that utilizes described in the present embodiment removes the device of hydrogen sulfide in the gas when actual motion, in described gas transmission pipeline 1, spray into desulfurization slurry by described atomizer 4, desulfurization slurry described in the present embodiment is amorphous FeOOH slurries, and the spray flux of described desulfurization slurry is 100m 3/ h; The concentration of described amorphous FeOOH slurries is 20wt%, and the particle size range of described amorphous FeOOH slurries is 200-300 μ m.Described desulfurization slurry is finished the desulfurization waste liquor that forms after the desulfurization and is entered regeneration tank 8 by described drain pipe 5, by utilizing described aerator 6 in described waste liquid, to pass into air, so that described FeOOH spent solution regeneration becomes amorphous FeOOH slurries and elemental sulfur, wherein elemental sulfur is because density is less, under the effect of aeration, float over the surface of regenerated liquid, and by described overfall outflow, again send into atomizer 4 and the FeOOH slurries of lower floor are recycled pump 7, realized the recycling of FeOOH.
The H of the coke-stove gas of processing without desulfurization in the gas transmission pipeline described in the present embodiment 1 2S content is 1000mg/L, H in 3 places, the gas outlet coke-stove gas out 2S content is down to 2mg/L.
In the above-described embodiments, described gas transmission pipeline 1 is the coke-stove gas conveyance conduit, and as selectable embodiment, described gas also can be biogas, natural gas, crude synthesis gas, water-gas etc.;
In above-described embodiment, the amorphous FeOOH that is and Alpha-hydroxy iron oxide that described desulfurization slurry adopts, as selectable embodiment, it is desulfurization slurry that described desulfurization slurry also can adopt in the prior art arbitrarily iron system or non-iron, and the solid desulfurating agent in the slurries can be selected ZnO, Ca (OH) 2, di-iron trioxide, CuO etc.; Perhaps adopt such as ammoniacal liquor, sodium carbonate, NaOH, potassium hydroxide, MDEA at interior doctor solution.
The desulfurization waste liquor that arranges among the present invention in the described drain pipe 5 forms fluid-tight; In order to prevent that the bubble that aerator bloats from entering described gas transmission pipeline, as selectable embodiment, also can be by the one-way flow such as other existing techniques in realizing gas-liquids such as check valves be set.
In addition, the present invention limits described gas transmission pipeline 1 " basic horizontal setting ", namely except being horizontally disposed with as the gas transmission pipeline 1 in above-described embodiment, also can have certain angle with horizontal direction, the angular range of this angle is ± 10 °, is not advisable with gas generation adverse current with doctor solution or desulfurization slurry.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.

Claims (12)

1. desulfurization, regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide comprises:
Gas transmission pipeline, described gas transmission pipeline basic horizontal arranges, the diameter of described gas transmission pipeline is greater than or equal to 0.3m, draw ratio is more than or equal to 10, gas flow rate in the described gas transmission pipeline is 3-10m/s, is provided with one or more liquid outlet at described gas transmission pipeline;
Along the throughput direction of gas, be provided with the gas outlet at the end of described gas transmission pipeline;
Below described gas transmission pipeline, be provided with regeneration tank, in described regeneration tank, be provided with aerator, be communicated with each liquid outlet on the described gas transmission pipeline and be provided with drain pipe, described drain pipe extends to the inside of described regeneration tank, and described drain pipe is connected with the inside of described regeneration tank by the liquid outlet of himself;
It is characterized in that, in described gas transmission pipeline, be disposed with a plurality of atomizers for injection desulfurization liquid or desulfurization slurry along the throughput direction of gas.
2. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 1 is characterized in that, described atomizer is along the axis setting of described gas transmission pipeline.
3. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 1 and 2 is characterized in that, the throughput direction of the gas in the injection direction of described atomizer and the described gas transmission pipeline is identical.
4. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 1 and 2 is characterized in that, the diameter of described gas transmission pipeline is 0.5-3.6m.
5. arbitrary described desulfurization, regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide is characterized in that the draw ratio of gas transmission pipeline is 10-30 according to claim 1-4.
6. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 5 is characterized in that, the draw ratio of gas transmission pipeline is 20.
7. arbitrary described desulfurization, regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide is characterized in that according to claim 1-6, and the spacing between per two adjacent described atomizers is 0.2-2m.
8. arbitrary described desulfurization, regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide is characterized in that described desulfurization slurry is the FeOOH slurries according to claim 1-7.
9. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 8 is characterized in that, the concentration of described FeOOH slurries is 5-30wt%; The particle size range of described FeOOH is 5-500 μ m.
10. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 1, it is characterized in that, doctor solution is finished the desulfurization waste liquor that forms after the desulfurization and is flowed into described regeneration tank by described drain pipe, and the desulfurization waste liquor in the described drain pipe forms fluid-tight.
11. desulfurization, the regenerating unit that utilizes gas transmission pipeline to remove hydrogen sulfide according to claim 10 is characterized in that, is provided with circulating pump in the bottom of described regeneration tank, described circulation delivery side of pump is connected with described atomizer.
12. according to claim 10 or 11 described desulfurization, the regenerating units that utilize gas transmission pipeline to remove hydrogen sulfide, it is characterized in that, be provided with overfall on the top of described regeneration tank.
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CN101732977A (en) * 2010-01-20 2010-06-16 东南大学 Device and method for enhancing removal of fine particle substances in flue gas desulfurization process of fire coal
CN201912887U (en) * 2011-01-26 2011-08-03 云南冶金(美国)科技有限公司 Horizontal type desulfurization tower
CN203253337U (en) * 2012-10-25 2013-10-30 北京三聚环保新材料股份有限公司 Desulfurization and regeneration apparatus adopting gas conveying pipeline to remove hydrogen sulfide

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CN101732977A (en) * 2010-01-20 2010-06-16 东南大学 Device and method for enhancing removal of fine particle substances in flue gas desulfurization process of fire coal
CN201912887U (en) * 2011-01-26 2011-08-03 云南冶金(美国)科技有限公司 Horizontal type desulfurization tower
CN203253337U (en) * 2012-10-25 2013-10-30 北京三聚环保新材料股份有限公司 Desulfurization and regeneration apparatus adopting gas conveying pipeline to remove hydrogen sulfide

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Publication number Priority date Publication date Assignee Title
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