CN103111175B - A kind of desulfurizer for purifying gas - Google Patents
A kind of desulfurizer for purifying gas Download PDFInfo
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- CN103111175B CN103111175B CN201310054410.XA CN201310054410A CN103111175B CN 103111175 B CN103111175 B CN 103111175B CN 201310054410 A CN201310054410 A CN 201310054410A CN 103111175 B CN103111175 B CN 103111175B
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- 238000009792 diffusion process Methods 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 230000003009 desulfurizing Effects 0.000 claims abstract description 64
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 57
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M buffer Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 123
- 238000011030 bottleneck Methods 0.000 claims description 44
- 229910002588 FeOOH Inorganic materials 0.000 claims description 37
- 239000007921 spray Substances 0.000 claims description 28
- 239000002002 slurry Substances 0.000 claims description 25
- 238000011069 regeneration method Methods 0.000 claims description 17
- 230000008929 regeneration Effects 0.000 claims description 16
- 238000005276 aerator Methods 0.000 claims description 10
- 230000001172 regenerating Effects 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 14
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 14
- 239000000243 solution Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000000746 purification Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000011800 void material Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 230000002194 synthesizing Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000011859 microparticle Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N Iron(III) oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000011068 load Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- WUPBHOGQSPUSRF-UHFFFAOYSA-N C=1(C(=CC=C2C(C3=CC=CC=C3C(C12)=O)=O)S(=O)(=O)O)S(=O)(=O)O.[Na] Chemical compound C=1(C(=CC=C2C(C3=CC=CC=C3C(C12)=O)=O)S(=O)(=O)O)S(=O)(=O)O.[Na] WUPBHOGQSPUSRF-UHFFFAOYSA-N 0.000 description 1
- PVXVWWANJIWJOO-UHFFFAOYSA-N Methylenedioxyethylamphetamine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 description 1
- 231100000614 Poison Toxicity 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000003116 impacting Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 230000001473 noxious Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000001187 sodium carbonate Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Abstract
The present invention relates to a kind of desulfurizer, including devulcanizer and gas-liquid separator, described devulcanizer is sequentially connected with in transverse direction and is provided with relief area, region of convergence, front end and diffusion region, rear end, having air inlet and the fluid injector for injection desulfurization serosity at described setting buffers, end diffusion region is provided with gas outlet in the rear；Region of convergence, described front end is the cylinder gradually tapered up along gas flow direction, and diffusion region, described rear end is the cylinder gradually expanded along gas flow direction；The length ratio that described relief area, region of convergence, front end are gone up in transverse direction with diffusion region, rear end is 3 5:4 6:3 5；Described gas-liquid separator is provided with gas outlet and liquid outlet, and described gas-liquid separator is connected with the gas outlet of diffusion region, described rear end by pipeline.The construction cost of desulfurizer of the present invention is cheap, operation energy consumption is low and has relatively high desulfurization efficiency.
Description
Technical field
The invention belongs to field of gas purification, be specifically related to a kind of desulfurizer.
Background technology
H2S is a kind of poisonous, harmful severe corrosive impurity being widely present in the gases such as coke-stove gas, water gas, natural gas, biogas, crude synthesis gas, containing H2When the above-mentioned gas of S is used as fuel, H therein2The product SO that S and its burning generate2Being noxious substance, can cause the pollution of environment, therefore above-mentioned gas have to process through desulfurizing and purifying before using as fuel.
In order to ensure the effect of desulfurization, prior art is used for remove H2The desulfurizer of S is typically provided with filler or other desulfurization component, such as Chinese science and technology document " structure of crude synthesis gas cleaning system desulfurizing tower is improved and application " (in August, 2007, big nitrogenous fertilizer, the 4th phase of volume 30) in disclose H in a kind of crude synthesis gas for removing with residual oil as raw material gas making2The desulfurizing tower of S, the tower height 39m of this desulfurizing tower, internal diameter 2.2m, 2 layers of blister configuration it are filled with on the top of described desulfurizing tower, bottom uses hollow-spraying-tower；Be provided with a sprinkle shower nozzle at the top of desulfurizing tower, middle part and bottom are respectively provided with 2 layers of atomizer, every layer of atomizer including 5 a diameter of 65mm；This desulfurizing tower is when actual motion, and crude synthesis gas is passed through from the bottom of tower, contacts with the anthraquinone disulfonic acid sodium solution of spray on tower, reaches to remove H2The effect of S.
Above-mentioned desulfurizing tower is effectively increased the contact of gas-liquid by arranging blister configuration, has higher desulfuration efficiency, after above-mentioned desulfurizing tower processes, and the H in crude synthesis gas2S content is by 800-1000mg/m3Drop to 2mg/m3Hereinafter, but in above-mentioned desulfurizing tower, owing to being filled with blister configuration in desulfurizing tower, on the one hand, causing the SR of desulfurizing tower to increase, operation energy consumption is higher；On the other hand, long-term use is easily caused generation fouling at blister configuration, thus blocks desulfurizing tower.In order to overcome this technical problem, reduce operation energy consumption, in prior art, spray void tower has gradually obtained more being widely applied, and spray void tower simplifies the component in tower and arranges, and passes through atomizer, in the middle and upper part of tower by doctor solution strength, high density atomization, forming substantial amounts of microparticle spheroid, microparticle spheroid contacts with the process gas entered from tower bottom, totally the impacting type contact in reverse flow under liquid on gas.The problem that its typical feature is that the uniformity of gas-liquid two-phase mixing is high, microparticle spheroid contact interface is big, mass-transfer efficiency is high, the utilization rate of doctor solution high, system loading is little, operation energy consumption is less and stifled tower will not occur.
Although above-mentioned spray void tower has relatively low tower system resistance and system loading, effectively reduce the operation energy consumption of desulfurizer, but above-mentioned spray void tower is not particularly suited for processing H2The gas that S concentration is higher, as H in gas2When S content is higher, above-mentioned spray void tower is generally difficult to meet the requirement of high purification.Therefore, in the prior art, as H in gas2When S content is higher, in order to reach higher desulfuration efficiency, it will usually multiple spray void towers are arranged in series, or spray void tower is successively arranged in series with packed tower, so, adds the most again construction cost and the operation energy consumption of equipment；And how while keeping low equipment cost and operation energy consumption, additionally it is possible to ensure the de-H of desulfurizer2S efficiency, is the most unsolved difficult problem of prior art.
Summary of the invention
In order to solve in prior art for removing the desulfurizer of high sulfur concentration gas, the construction cost of its equipment and the higher problem of operation energy consumption, it is provided that a kind of construction cost is cheap, operation energy consumption is low and has the desulfurizer for purifying gas of relatively high desulfurization efficiency.
The technical scheme of the heretofore described desulfurizer for purifying gas is:
A kind of desulfurizer, including:
Devulcanizer, described devulcanizer is sequentially connected with in transverse direction and is provided with relief area, region of convergence, front end and diffusion region, rear end, having air inlet and for injection desulfurization liquid or the fluid injector of desulfurization slurry at described setting buffers, end diffusion region is provided with gas outlet in the rear；Wherein, region of convergence, described front end is the cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end is 1:5-1:2；Described middle part bottle-neck section is the cylinder that diameter is constant；Diffusion region, described rear end is the cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end is 4:1-3:2；The length sum that region of convergence, described front end and diffusion region, rear end are gone up in transverse direction is more than or equal to 10 with the diameter ratio of described region of convergence, and the gas flow rate at described air inlet is 3-5m/s；
Gas-liquid separator, described gas-liquid separator is connected by the gas outlet of pipeline with diffusion region, described rear end, and described gas-liquid separator is provided with gas outlet and liquid outlet.
Middle part bottle-neck section it is additionally provided with between region of convergence, described front end and diffusion region, rear end, the maximum gauge of described middle part bottle-neck section is less than or equal to the minimum diameter of region of convergence, described front end, and the length ratio that region of convergence, described front end, middle part bottle-neck section are gone up in transverse direction with diffusion region, rear end is 3-5:4-6:3-5.Described fluid injector is atomizer, and described atomizer is arranged near the center of described relief area.
A diameter of 0.5-2.5m of described middle part bottle-neck section.
In described relief area, the spray direction of described atomizer is mutually perpendicular to the airintake direction of described air inlet.
The length sum that region of convergence, described front end and diffusion region, rear end are gone up in transverse direction is 10-30 with the ratio of the minimum diameter of region of convergence, described front end.
The length sum that region of convergence, described front end and diffusion region, rear end are gone up in transverse direction is 20 with the ratio of the minimum diameter of region of convergence, described front end.
Described desulfurization slurry is FeOOH serosity.
The concentration of described FeOOH serosity is 5-30wt%；The grain diameter of described FeOOH is 5-500 μm.
Be provided with regenerating unit in the lower section of described gas-liquid separator, described regenerating unit includes:
Regeneration tank, described regeneration tank is connected with the liquid outlet of described gas-liquid separator, is connected with described fluid injector by reflux line simultaneously;
Aerator, described aerator is connected with described regeneration tank, and liquid is carried out oxygen supply.
The advantage of the desulfurizer for purifying gas of the present invention is:
(1) desulfurizer of the present invention, it is provided with devulcanizer, described devulcanizer is sequentially connected with in transverse direction and is provided with relief area, region of convergence, front end and diffusion region, rear end, having air inlet and for injection desulfurization liquid or the fluid injector of desulfurization slurry at described setting buffers, end diffusion region is provided with gas outlet in the rear；Wherein, region of convergence, described front end is the cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end is 1:5-1:2；Diffusion region, described rear end is the cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end is 4:1-3:2；nullHeretofore described devulcanizer，Spray area is formed in described relief area，Described doctor solution or desulfurization slurry are sufficiently mixed with gas，Mix from described air inlet forced air out with from described fluid injector liquid spray out and carry out desulphurization reaction，While carrying out desulphurization reaction, gas continues to move along，During gas is gradually moved forward，Along with being gradually reduced of space, region of convergence, front end，The pressure of gas gradually strengthens，Thus have accumulated certain excitation energy in gas interior，When gas is through at the minimum diameter of region of convergence, front end and after entering diffusion region, rear end，Gas enters large space via little space，The excitation energy abrupt release of gas interior，Thus doctor solution or the desulfurization slurry in driving liquid phase region erupted in moment，Achieve the mixing again of gas and doctor solution or desulfurization slurry fully、And further promote the desulfurization to gas.
The present invention is by the region of convergence, front end set gradually in transverse direction by described devulcanizer and diffusion region, rear end；It is further defined by the ratio of length sum and the minimum diameter of region of convergence, described front end gone up in transverse direction with diffusion region, rear end region of convergence, described front end more than or equal to 10, and limits gas flow rate at described air inlet as 3-10m/s；By above-mentioned setting, while having effectively facilitated gas and doctor solution or the mixed effect of desulfurization slurry, raising gas-liquid mass transfer area, also make the carrying out of the time of staying beneficially desulphurization reaction of gas-liquid mixture, it is possible to reach higher desulfuration efficiency.
Desulfurizer in the present invention and described devulcanizer are also connected with being provided with gas-liquid separator, and described gas-liquid separator separates from described devulcanizer gas-liquid mixture out, obtains clean gas and desulfurization waste liquor.Desulfurizer of the present invention is compared to desulfurizer of the prior art, simple in construction, cheap and have higher desulfuration efficiency.
(2) desulfurizer of the present invention, middle part bottle-neck section it is additionally provided with between region of convergence, described front end and diffusion region, rear end, the maximum gauge of described middle part bottle-neck section is less than or equal to the minimum diameter of region of convergence, described front end, and the length ratio that region of convergence, described front end, middle part bottle-neck section are gone up in transverse direction with diffusion region, rear end is 3-5:4-6:3-5.The present invention is by arranging middle part bottle-neck section and being defined trizonal length so that the gas-liquid mixture distribution in the regional time of staying is beneficial to the carrying out of desulphurization reaction, further increases desulfuration efficiency.
(3) desulfurizer of the present invention, arranging described doctor solution is FeOOH serosity, and reason is, FeOOH serosity can be with H2S quickly reacts, and is rapidly removed.As preferred embodiment, in order to improve the desulfuration efficiency of device further, it is 5-30wt% that the present invention is further defined by the concentration of described FeOOH serosity；The grain diameter of described FeOOH is 5-500 μm.
(4) desulfurizer of the present invention, arranging described fluid injector is atomizer, described atomizer is near the center of described relief area, and a diameter of 0.5-2.5m of described middle part bottle-neck section is set, advantage is, owing to the gas transmission pipeline diameter in the present invention is less, thus allow for the liquid particle that sprays from described atomizer can the whole cross section of gassy conveyance conduit, effectively increase gas liquid interfacial area.
(5) desulfurizer of the present invention, in arranging described region of convergence, the spray direction of described atomizer is mutually perpendicular to the airintake direction of described air inlet, arrange compared to the airintake direction adverse current of spray direction with air inlet, so have the advantage that the energy consumption reducing operation.
(6) desulfurizer of the present invention, the lower section of described gas-liquid separator is provided with regenerating unit, described regenerating unit includes that regeneration tank and aerator, described regeneration tank are connected with the liquid outlet of described gas-liquid separator, is connected with described fluid injector by reflux line simultaneously;Described aerator is connected with described regeneration tank, liquid is carried out oxygen supply, by above-mentioned setting, described aerator is utilized to be passed through air in the described desulfurization waste liquor being flowed into regeneration tank by gas-liquid separator, described FeOOH spent solution regeneration is made to become FeOOH serosity and elemental sulfur, wherein elemental sulfur due to density less, the surface of regenerated liquid is floated under the effect of aeration, and the FeOOH serosity of lower floor is fed again into atomizer by circulating pump, it is achieved that the recycling of FeOOH.
Accompanying drawing explanation
It is clearly understood to make present disclosure be easier to, below in conjunction with specific embodiments and the drawings, present disclosure is described in further detail, wherein
Fig. 1 show devulcanizer of the present invention；
Fig. 2 show the devulcanizer being provided with middle part bottle-neck section of the present invention；
Fig. 3 show the structure chart of the desulfurizer being provided with regenerating unit of the present invention；
Wherein reference is:
1-atomizer；2-air inlet；3-devulcanizer；4-relief area；Region of convergence, 5-front end；Diffusion region, 6-rear end；7-gas-liquid separator；8-regeneration tank；Bottle-neck section in the middle part of 9-.
Detailed description of the invention
Embodiment
1
Desulfurizer described in the present embodiment, including: devulcanizer 3 and gas-liquid separator 7.
As shown in Figure 1, described devulcanizer 3 is sequentially connected with in transverse direction and is provided with relief area 4, region of convergence, front end 5 and diffusion region, rear end 6, described relief area 4 is provided with air inlet 2 and the atomizer 1 for injection desulfurization serosity, and described atomizer 1 is arranged near the center of described relief area 4, end diffusion region 6 is provided with gas outlet in the rear；In region of convergence, described front end 5, the spray direction of described atomizer 1 is mutually perpendicular to the airintake direction of described air inlet 2；Wherein, described relief area 4 is the cylinder that diameter is constant, and region of convergence, described front end 5 is the taper type cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end 5 is 1:3；Diffusion region, described rear end 6 is the taper type cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end 6 is 3:1；The length ratio that described relief area 4, region of convergence, front end 5 are gone up in transverse direction with diffusion region, rear end 6 is 0.5:1:1.
The length sum that region of convergence, front end described in the present embodiment 5 and diffusion region, rear end 6 are gone up in transverse direction is 20 with the ratio of the minimum diameter of region of convergence, described front end 5, and described minimum diameter is 1.5m；Gas flow rate at described air inlet 2 is 4m/s.
Described gas-liquid separator 7 is connected with the gas outlet of diffusion region, described rear end 6 by pipeline, and described gas-liquid separator 7 is provided with gas outlet and liquid outlet.Desulfurizer described in the present embodiment is when for removing the hydrogen sulfide in coke-stove gas, and described desulfurization slurry is amorphous FeOOH serosity, and the spray flux of described desulfurization slurry is 9m3/h；The concentration of described amorphous FeOOH serosity is 25wt%, and the particle size range of described amorphous FeOOH is 200-300 μm.
Desulfurizer described in the present embodiment operationally, by H2S content is that the coke-stove gas of 1000mg/L sends into described devulcanizer 3 from described air inlet 2, H in the purification gas obtained after devulcanizer 3 described in the present embodiment carries out desulfurization process2S content is down to 1.8mg/L.
Embodiment
2
Desulfurizer described in the present embodiment, including: devulcanizer 3 and gas-liquid separator 7.
Described devulcanizer 3 is sequentially connected with in transverse direction and is provided with relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 and diffusion region, rear end 6, described relief area 4 is provided with air inlet 2 and the atomizer 1 for injection desulfurization serosity, and described atomizer 1 is arranged near the center of described relief area 4, end diffusion region 6 is provided with gas outlet in the rear；In region of convergence, described front end 5, the spray direction of described atomizer 1 is mutually perpendicular to the airintake direction of described air inlet 2；Wherein, described relief area 4 is the cylinder that diameter is constant；Region of convergence, described front end 5 is the taper type cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end 5 is 1:3；Described middle part bottle-neck section 9 is the cylinder that diameter is constant, and the diameter of the most described middle part bottle-neck section 9 is equal to the minimum diameter of region of convergence, described front end 5；Diffusion region, described rear end 6 is the taper type cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end 6 is 3:1；The length ratio that described relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 are gone up in transverse direction with diffusion region, rear end 6 is 1:4:5:4.
The length sum that region of convergence, front end described in the present embodiment 5 and diffusion region, rear end 6 are gone up in transverse direction is 20 with the diameter ratio of described middle part bottle-neck section 9, a diameter of 1.5m of described middle part bottle-neck section 9；Gas flow rate at described air inlet 2 is 4m/s.
Described gas-liquid separator 7 is connected with the gas outlet of diffusion region, described rear end 6 by pipeline, and described gas-liquid separator 7 is provided with gas outlet and liquid outlet.Desulfurizer described in the present embodiment is when for removing the hydrogen sulfide in coke-stove gas, and described desulfurization slurry is amorphous FeOOH serosity, and the spray flux of described desulfurization slurry is 8m3/h；The concentration of described amorphous FeOOH serosity is 20wt%, and the particle size range of described amorphous FeOOH is 200-300 μm.
Desulfurizer described in the present embodiment operationally, by H2S content is that the coke-stove gas of 1000mg/L sends into described devulcanizer 3 from described air inlet 2, H in the purification gas obtained after devulcanizer 3 described in the present embodiment carries out desulfurization process2S content is down to 2mg/L.
Embodiment
3
Desulfurizer described in the present embodiment, including: devulcanizer 3 and gas-liquid separator 7.
As shown in Figure 2, described devulcanizer 3 is sequentially connected with in transverse direction and is provided with relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 and diffusion region, rear end 6, described relief area 4 is provided with air inlet 2 and the atomizer 1 for injection desulfurization serosity, and described atomizer 1 is arranged near the center of described relief area 4, end diffusion region 6 is provided with gas outlet in the rear；In region of convergence, described front end 5, the spray direction of described atomizer 1 is mutually perpendicular to the airintake direction of described air inlet 2；Wherein, described relief area 4 is the cylinder that diameter is constant；Region of convergence, described front end 5 is the taper type cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end 5 is 1:5；Described middle part bottle-neck section 9 is the taper type cylinder gradually tapered up along gas flow direction, and the maximum gauge of the most described middle part bottle-neck section 9 is equal to the minimum diameter of region of convergence, described front end 5, and the shrinkage ratio of described middle part bottle-neck section 9 is 1:1.5；Diffusion region, described rear end 6 is the taper type cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end 6 is 4:1；The length ratio that described relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 are gone up in transverse direction with diffusion region, rear end 6 is 1:3:5:3；
The length sum that region of convergence, front end described in the present embodiment 5 and diffusion region, rear end 6 are gone up in transverse direction is 10 with the ratio of the maximum gauge of described middle part bottle-neck section 9, and the maximum gauge of described middle part bottle-neck section 9 is 0.5m；Gas flow rate at described air inlet 2 is 3m/s.
Described gas-liquid separator 7 is connected with the gas outlet of diffusion region, described rear end 6 by pipeline, and described gas-liquid separator 7 is provided with gas outlet and liquid outlet.
Desulfurizer described in the present embodiment is when for removing the hydrogen sulfide in coke-stove gas, and described desulfurization slurry is amorphous FeOOH serosity, and the spray flux of described desulfurization slurry is 8m3/h；The concentration of described amorphous FeOOH serosity is 30wt%, and the particle size range of described amorphous FeOOH is 5-20 μm.
Desulfurizer described in the present embodiment operationally, by H2S content is that the coke-stove gas of 1000mg/L sends into described devulcanizer 3 from described air inlet 2, H in the purification gas obtained after devulcanizer 3 described in the present embodiment carries out desulfurization process2S content is down to 10mg/L.
Embodiment
4
Desulfurizer described in the present embodiment, including: devulcanizer 3 and gas-liquid separator 7.
Described devulcanizer 3 is sequentially connected with in transverse direction and is provided with relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 and diffusion region, rear end 6, described relief area 4 is provided with air inlet 2 and the atomizer 1 for injection desulfurization serosity, and described atomizer 1 is arranged near the center of described relief area 4, end diffusion region 6 is provided with gas outlet in the rear；In region of convergence, described front end 5, the spray direction of described atomizer 1 is mutually perpendicular to the airintake direction of described air inlet 2；Wherein, described relief area 4 is the cylinder that diameter is constant；Region of convergence, described front end 5 is the taper type cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end 5 is 1:2；Described middle part bottle-neck section 9 is the cylinder that diameter is constant；Diffusion region, described rear end 6 is the taper type cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end 6 is 3:2；The length ratio that region of convergence, described front end 5, middle part bottle-neck section 9 are gone up in transverse direction with diffusion region, rear end 6 is 0.8:5:6:5；
The length sum that region of convergence, front end described in the present embodiment 5 and diffusion region, rear end 6 are gone up in transverse direction is 30 with the diameter ratio of described middle part bottle-neck section 9, a diameter of 2.5m of described middle part bottle-neck section 9；Gas flow rate at described air inlet 2 is 5m/s.
Described gas-liquid separator 7 is connected with the gas outlet of diffusion region, described rear end 6 by pipeline, and described gas-liquid separator 7 is provided with gas outlet and liquid outlet.
Desulfurizer described in the present embodiment is when for removing the hydrogen sulfide in coke-stove gas, and described desulfurization slurry is amorphous FeOOH serosity, and the spray flux of described desulfurization slurry is 8m3/h；The concentration of described amorphous FeOOH serosity is 5wt%, and the particle size range of described amorphous FeOOH is 20-100 μm.
Desulfurizer described in the present embodiment operationally, by H2S content is that the coke-stove gas of 1000mg/L sends into described devulcanizer 3 from described air inlet 2, H in the purification gas obtained after devulcanizer 3 described in the present embodiment carries out desulfurization process2S content is down to 5mg/L.
Embodiment
5
Desulfurizer described in the present embodiment, including: devulcanizer 3 and gas-liquid separator 7.
Described devulcanizer 3 is sequentially connected with in transverse direction and is provided with relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 and diffusion region, rear end 6, described relief area 4 is provided with air inlet 2 and the atomizer 1 for injection desulfurization serosity, and described atomizer 1 is arranged near the center of described relief area 4, end diffusion region 6 is provided with gas outlet in the rear；In region of convergence, described front end 5, the spray direction of described atomizer 1 is mutually perpendicular to the airintake direction of described air inlet 2；Wherein, described relief area 4 is the cylinder that diameter is constant；Region of convergence, described front end 5 is the taper type cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end 5 is 1:3；Described middle part bottle-neck section 9 is the cylinder that diameter is constant；Diffusion region, described rear end 6 is the taper type cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end 6 is 3:1；The length ratio that described relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 are gone up in transverse direction with diffusion region, rear end 6 is 1:4: 5:4.
The length sum that region of convergence, front end described in the present embodiment 5 and diffusion region, rear end 6 are gone up in transverse direction is 10 with the diameter ratio of described middle part bottle-neck section 9, a diameter of 2.5m of described middle part bottle-neck section 9；Gas flow rate at described air inlet 2 is 4m/s.
Described gas-liquid separator 7 is connected with the gas outlet of diffusion region, described rear end 6 by pipeline, and described gas-liquid separator 7 is provided with gas outlet and liquid outlet.
Desulfurizer described in the present embodiment is when for removing the hydrogen sulfide in coke-stove gas, and described desulfurization slurry is amorphous FeOOH serosity, and the spray flux of described desulfurization slurry is 8m3/h；The concentration of described amorphous FeOOH serosity is 10wt%, and the particle size range of described amorphous FeOOH is 100-300 μm.
Desulfurizer described in the present embodiment operationally, by H2S content is that the coke-stove gas of 1000mg/L sends into described devulcanizer 3 from described air inlet 2, H in the purification gas obtained after devulcanizer 3 described in the present embodiment carries out desulfurization process2S content is down to 3mg/L.
Embodiment
6
Desulfurizer described in the present embodiment, including: devulcanizer 3 and gas-liquid separator 7.
Described devulcanizer 3 is sequentially connected with in transverse direction and is provided with relief area 4, region of convergence, front end 5, middle part bottle-neck section 9 and diffusion region, rear end 6, described relief area 4 is provided with air inlet 2 and the atomizer 1 for injection desulfurization serosity, and described atomizer 1 is arranged near the center of described relief area 4, end diffusion region 6 is provided with gas outlet in the rear；In region of convergence, described front end 5, the spray direction of described atomizer 1 is mutually perpendicular to the airintake direction of described air inlet 2；Wherein, described relief area 4 is the cylinder that diameter is constant；Region of convergence, described front end 5 is the taper type cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end 5 is 1:3；Described middle part bottle-neck section 9 is the cylinder that diameter is constant；Diffusion region, described rear end 6 is the taper type cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end 6 is 3:1；The length ratio that region of convergence, described front end 5, middle part bottle-neck section 9 are gone up in transverse direction with diffusion region, rear end 6 is 0.5:4: 5:4.
The length sum that region of convergence, front end described in the present embodiment 5 and diffusion region, rear end 6 are gone up in transverse direction is 20 with the diameter ratio of described middle part bottle-neck section 9, a diameter of 1.5m of described middle part bottle-neck section 9；Gas flow rate at described air inlet 2 is 5m/s.
Described gas-liquid separator 7 is connected with the gas outlet of diffusion region, described rear end 6 by pipeline, and described gas-liquid separator 7 is provided with gas outlet and liquid outlet.
As shown in Figure 3, desulfurizer described in the present embodiment is additionally provided with regenerating unit in the lower section of described gas-liquid separator 7, described regenerating unit includes regeneration tank 8 and aerator, described regeneration tank 8 is connected with the liquid outlet of described gas-liquid separator 7, is connected with described fluid injector by reflux line simultaneously；Described aerator is connected with described regeneration tank 8, and liquid is carried out oxygen supply.
Desulfurizer described in the present embodiment is when for removing the hydrogen sulfide in coke-stove gas, and described desulfurization slurry is amorphous FeOOH serosity, and the spray flux of described desulfurization slurry is 8m3/h；The concentration of described amorphous FeOOH serosity is 10wt%, and the particle size range of described amorphous FeOOH is 300-500 μm；The desulfurization waste liquor that described desulfurization slurry is formed after completing desulfurization enters regeneration tank 8 after gas-liquid separator 7 separates, described aerator is utilized to be passed through air in described desulfurization waste liquor, described FeOOH spent solution regeneration is made to become FeOOH serosity and elemental sulfur, wherein elemental sulfur due to density less, the surface of regenerated liquid is floated under the effect of aeration, and the FeOOH serosity of lower floor is fed again into atomizer 1 by circulating pump, it is achieved that the recycling of FeOOH.
Desulfurizer described in the present embodiment operationally, by H2S content is that the coke-stove gas of 1000mg/L sends into described devulcanizer 3 from described air inlet 2, H in the purification gas obtained after devulcanizer 3 described in the present embodiment carries out desulfurization process2S content is down to 3mg/L.
In the above-described embodiments, the air inlet 2 of described relief area 4 gas inputted is coke-stove gas, and as selectable embodiment, described gas can also be biogas, natural gas, crude synthesis gas, water gas etc..
In above-described embodiment, amorphous FeOOH that described desulfurization slurry uses and Alpha-hydroxy ferrum oxide, as selectable embodiment, described desulfurization slurry can also use arbitrary ferrum system or non-ferric system desulfurization slurry in prior art, and the solid desulfurating agent in serosity can select ZnO, Ca (OH)2, iron sesquioxide, CuO etc.；Or use such as ammonia, sodium carbonate, sodium hydroxide, potassium hydroxide, MDEA at interior doctor solution.
And in the above-described embodiments, as preferred embodiment, region of convergence, described front end 5 and diffusion region, rear end 6 are set to taper type, the side line that the cylinder of region of convergence, the most described front end 5 and diffusion region, rear end 6 is located therein on cross section, axis place is straight line, as selectable embodiment, the cylinder of region of convergence, described front end 5 and diffusion region, rear end 6 is located therein the side line on cross section, axis place it can also be provided that curve.
It should be noted that gas flow direction of the present invention refers to after the liquid that gas described in relief area 4 inputs through the external world and sprays with atomizer 1 meets and mixes, the direction axially flowed along desulfurizer together with described liquid.Furthermore, it is necessary to explanation, the shrinkage ratio of region of convergence, heretofore described front end 5 is exit, region of convergence, front end 5 diameter and porch diameter ratio, the minimum diameter of region of convergence, the most described front end 5 and the ratio of maximum gauge；The divergence ratio of diffusion region, described rear end 6 is similarly exit diameter and porch diameter ratio, but the ratio of the maximum gauge of diffusion region, described rear end 6 and minimum diameter.
Obviously, above-described embodiment is only for clearly demonstrating example, and not 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 without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or variation still in the protection domain of the invention among.
Claims (9)
1. for purifying a desulfurizer for gas, including:
Devulcanizer, described devulcanizer is sequentially connected with in transverse direction and is provided with relief area, region of convergence, front end and diffusion region, rear end, air inlet is had and for injection desulfurization liquid or the fluid injector of desulfurization slurry at described setting buffers, in described relief area, the spray direction of described fluid injector is mutually perpendicular to the airintake direction of described air inlet, and end diffusion region is provided with gas outlet in the rear；Wherein, region of convergence, described front end is the cylinder gradually tapered up along gas flow direction, and the shrinkage ratio of region of convergence, described front end is 1:5-1:2；Diffusion region, described rear end is the cylinder gradually expanded along gas flow direction, and the divergence ratio of diffusion region, described rear end is 4:1-3:2；
The length sum that region of convergence, described front end and diffusion region, rear end are gone up in transverse direction is more than or equal to 10 with the ratio of the minimum diameter of region of convergence, described front end, and the gas flow rate at described air inlet is 3-5m/s；
Gas-liquid separator, described gas-liquid separator is connected by the gas outlet of pipeline with diffusion region, described rear end, and described gas-liquid separator is provided with gas outlet and liquid outlet.
Desulfurizer for purifying gas the most according to claim 1, it is characterized in that, middle part bottle-neck section it is additionally provided with between region of convergence, described front end and diffusion region, rear end, the maximum gauge of described middle part bottle-neck section is less than or equal to the minimum diameter of region of convergence, described front end, and the length ratio that region of convergence, described front end, middle part bottle-neck section are gone up in transverse direction with diffusion region, rear end is 3-5:4-6:3-5.
Desulfurizer for purifying gas the most according to claim 1 and 2, it is characterised in that described fluid injector is atomizer, described atomizer is arranged near the center of described relief area.
Desulfurizer for purifying gas the most according to claim 2, it is characterised in that a diameter of 0.5-2.5m of described middle part bottle-neck section.
Desulfurizer for purifying gas the most according to claim 1 and 2, it is characterised in that the length sum that region of convergence, described front end and diffusion region, rear end are gone up in transverse direction is 10-30 with the ratio of the minimum diameter of region of convergence, described front end.
Desulfurizer for purifying gas the most according to claim 5, it is characterised in that the length sum that region of convergence, described front end and diffusion region, rear end are gone up in transverse direction is 20 with the ratio of the minimum diameter of region of convergence, described front end.
Desulfurizer for purifying gas the most according to claim 6, it is characterised in that described desulfurization slurry is FeOOH serosity.
Desulfurizer for purifying gas the most according to claim 7, it is characterised in that the concentration of described FeOOH serosity is 5-30wt%；The grain diameter of described FeOOH is 5-500 μm.
9. according to the desulfurizer for purifying gas described in claim 7 or 8, it is characterised in that be provided with regenerating unit in the lower section of described gas-liquid separator, described regenerating unit includes:
Regeneration tank, described regeneration tank is connected with the liquid outlet of described gas-liquid separator, is connected with described fluid injector by reflux line simultaneously；
Aerator, described aerator is connected with described regeneration tank, and liquid is carried out oxygen supply.
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| CN201310054410.XA CN103111175B (en) | 2013-02-20 | A kind of desulfurizer for purifying gas |
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| CN201310054410.XA CN103111175B (en) | 2013-02-20 | A kind of desulfurizer for purifying gas |
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| CN103111175B true CN103111175B (en) | 2016-11-30 |
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Address after: 100080 9th floor, Dahang Jiye building, No.1 building, 33 Renmin North Road, Haidian District, Beijing Patentee after: Beijing Haixin Energy Technology Co.,Ltd. Address before: 100080, Beijing, Haidian District people's Congress Road 33, the big line foundation building 17 floor Patentee before: BEIJING SANJU ENVIRONMENTAL PROTECTION & NEW MATERIALS Co.,Ltd. |