CN212701273U - Device for removing hydrogen sulfide from gas phase material liquid film bed - Google Patents
Device for removing hydrogen sulfide from gas phase material liquid film bed Download PDFInfo
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- CN212701273U CN212701273U CN202021312110.9U CN202021312110U CN212701273U CN 212701273 U CN212701273 U CN 212701273U CN 202021312110 U CN202021312110 U CN 202021312110U CN 212701273 U CN212701273 U CN 212701273U
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Abstract
The utility model discloses a gaseous phase material liquid membrane bed hydrogen sulfide removal device relates to gaseous phase material hydrogen sulfide removal technical field. This gaseous phase thing feed liquid membrane bed takes off device of hydrogen sulfide includes liquid membrane bed and packed tower, carry out preliminary distribution to amine liquid through set up distributor and atomizing nozzle in liquid membrane bed and packed tower, the fibre bundle in the rethread liquid membrane bed and the filler in the packed tower make amine liquid form the amine liquid film on the cellosilk surface, form the amine liquid drop on the filler surface, thereby make amine liquid and dry gas material fully contact, improve the efficiency that amine liquid absorbs hydrogen sulfide in the dry gas material by a wide margin, under the prerequisite that guarantees the desulfurization needs, amine liquid circulation flow can descend 50%, corresponding desulfurization cost also can reduce 50%.
Description
Technical Field
The utility model relates to a gaseous phase material hydrogen sulfide technical field relates to a gaseous phase material liquid film bed hydrogen sulfide's device particularly.
Background
Gas-phase materials such as natural gas and shale gas produced by oil and gas fields, dry gas and fuel gas produced by oil refinery devices, circulating hydrogen of hydrogenation devices and the like generally contain hydrogen sulfide, and the high-yield dry gas and fuel gas have low hydrogen sulfide content and can be obtained by carrying out high-yield high-.
At present, a sieve plate tower or a packed tower is commonly adopted in a gas-phase material hydrogen sulfide removal device, an N-Methyldiethanolamine (MDEA) amine liquid extraction and absorption process is generally adopted, the temperature of hydrogen sulfide absorbed by the amine liquid is generally 30-45 ℃, the rich amine liquid after hydrogen sulfide absorption is heated to 120-125 ℃, the rich amine liquid is decomposed into hydrogen sulfide gas and amine liquid, and the amine liquid can be recycled after being cooled.
However, because the mass transfer efficiency of the sieve plate tower or the packed tower is low, the efficiency of absorbing hydrogen sulfide by the amine liquid is low, the content of hydrogen sulfide in the rich amine liquid is only 2-5g/L, and the saturated concentration of hydrogen sulfide in the amine liquid is far from 20-30g/L, and under the condition that the efficiency of absorbing hydrogen sulfide by the amine liquid is low, the aim of desulfurization is fulfilled, the circulation flow of the amine liquid must be increased, and the larger the circulation flow of the amine liquid is, the higher the energy consumption of regeneration heating and cooling of the amine liquid is, and the higher the desulfurization cost of the gas-phase material is correspondingly. Aiming at the problems of low efficiency of absorbing hydrogen sulfide in gas phase materials by amine liquid, large circulation flow of the amine liquid and high energy consumption cost of regeneration heating and cooling of the amine liquid in the prior art, the device for removing hydrogen sulfide from the gas phase materials with high efficiency and low cost is very necessary.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a device for removing hydrogen sulfide from a gas-phase material liquid film bed, which can greatly improve the desulfurization efficiency and reduce the circulation flow of amine liquid on the premise of ensuring the desulfurization requirement, thereby reducing the desulfurization cost.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
a device for removing hydrogen sulfide from a gas-phase material liquid film bed comprises a liquid film bed and a packed tower, wherein a liquid film bed distributor is installed at the top of the liquid film bed, liquid film bed atomizing nozzles are uniformly distributed on the liquid film bed distributor, a flange is installed at the upper part of the liquid film bed and connected with a liquid film bed inner core pore plate, a fiber bundle is fixed on the liquid film bed inner core pore plate, and a liquid film bed inner sleeve is welded at the outer side of the liquid film bed inner core pore plate;
the top of the packed tower is provided with a defoaming net, the upper part of the packed tower is provided with a packed tower distributor, the packed tower distributor is uniformly distributed with packed tower atomizing nozzles, and the packing is arranged below the packed tower atomizing nozzles;
the top of the liquid film bed is connected with a gas phase material feeding pipeline, the upper side part of the liquid film bed inner sleeve is connected with a liquid film bed gas phase material discharging pipeline, the liquid film bed gas phase material discharging pipeline is connected with the lower side part of the packed tower, and the top of the packed tower is connected with a gas phase material discharging pipeline; the upper side part of the liquid membrane bed is connected with an amine liquid feeding pipeline, the amine liquid feeding pipeline is connected with a liquid membrane bed distributor, the bottom of the liquid membrane bed is connected with an amine liquid discharging pipeline of the liquid membrane bed, the amine liquid discharging pipeline of the liquid membrane bed is connected with a packed tower distributor, and the bottom of the packed tower is connected with an amine-rich liquid discharging pipeline.
As the preferred embodiment of the utility model, one atomizing nozzle is installed on each distribution hole on the liquid film bed distributor and the packed tower distributor, and the nozzle of the atomizing nozzle is vertically downward.
As the preferred embodiment of the present invention, the inner core hole plate of the liquid membrane bed is uniformly distributed with fiber bundle hanging holes, the fiber bundle hanging holes are distributed with fiber bundle hook horizontal pins, the fiber bundle hook horizontal pins (71) are connected with the fiber bundle hook, the fiber bundle passes through the fiber bundle hook horizontal pins and the fiber bundle hook is uniformly fixed on the inner core hole plate of the liquid membrane bed.
As the preferred embodiment of the utility model, the fiber bundle contains a plurality of cellosilk, the diameter of the cellosilk is 0.05-0.2mm, the surface of the cellosilk is treated by hydrophilic modification technology, the hydrophilic angle is not more than 5 degrees, and the fiber bundle is in a continuous ripple shape or a spiral shape.
As a preferred embodiment of the utility model, the packing of the packed tower is random packing or regular packing.
As a preferred embodiment of the present invention, the packed tower has a height to diameter ratio of 4 to 7.
Compared with the prior art, the beneficial effects of the utility model reside in that: the process for absorbing hydrogen sulfide by using the liquid membrane bed and the packed tower is characterized in that a two-stage amine liquid absorption process of the liquid membrane bed and the packed tower is adopted, amine liquid atomization is realized by using a distributor and an atomizing nozzle and is more uniformly distributed on fiber yarns in the liquid membrane bed and packing in the packed tower, the contact area of a gas phase and a liquid phase is greatly increased compared with that of a conventional sieve plate tower or a packed tower, the absorption efficiency of the amine liquid on the hydrogen sulfide can be greatly improved, on the premise of ensuring the desulfurization requirement of a gas phase material, the circulation flow of the amine liquid is reduced by more than 50% compared with that of the conventional sieve plate tower or the packed tower, and the amine liquid regeneration energy consumption and.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the liquid film bed distributor and the liquid film bed atomizing nozzle of the present invention;
FIG. 3 is a schematic view of the structure of the inner core of the liquid film bed of the present invention;
FIG. 4 is a schematic structural view of the inner core hole plate of the liquid film bed of the present invention;
in the figure: 1. a liquid film bed; 2. an inner sleeve of the liquid film bed; 3. a liquid film bed distributor; 4. a liquid film bed atomizing nozzle; 5. a flange; 6. an inner core hole plate of the liquid film bed; 7. a fiber bundle; 71. a fiber bundle hook transverse pin; 72. a fiber bundle hanging hole; 73. fiber bundle hooks; 8. a packed tower; 9. a filler; 10. a defoaming net; 11. a packed column distributor; 12. a packed tower atomizing nozzle; 21. a gas phase feed line; 22. a liquid film bed gas phase material discharge pipeline; 23. a gas phase material discharge line; 24. an amine liquid feed line; 25. a liquid membrane bed amine liquid discharge pipeline; 26. an amine-rich liquid discharge pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a device for removing hydrogen sulfide from a gas phase material liquid film bed, which comprises a liquid film bed and a packed tower, wherein a liquid film bed distributor is arranged at the top of the liquid film bed, liquid film bed atomizing nozzles are uniformly distributed on the liquid film bed distributor, a flange is arranged at the upper part of the liquid film bed, the flange is connected with a liquid film bed inner core pore plate, a fiber bundle is fixed on the liquid film bed inner core pore plate, and a liquid film bed inner sleeve is welded at the outer side of the liquid film bed inner core pore plate;
the top of the packed tower is provided with a defoaming net, the upper part of the packed tower is provided with a packed tower distributor, the packed tower distributor is uniformly distributed with packed tower atomizing nozzles, and the packing is arranged below the packed tower atomizing nozzles;
the top of the liquid film bed is connected with a gas phase material feeding pipeline, the upper side part of the liquid film bed inner sleeve is connected with a liquid film bed gas phase material discharging pipeline, the liquid film bed gas phase material discharging pipeline is connected with the lower side part of the packed tower, and the top of the packed tower is connected with a gas phase material discharging pipeline; the upper side part of the liquid membrane bed is connected with an amine liquid feeding pipeline, the amine liquid feeding pipeline is connected with a liquid membrane bed distributor, the bottom of the liquid membrane bed is connected with an amine liquid discharging pipeline of the liquid membrane bed, the amine liquid discharging pipeline of the liquid membrane bed is connected with a packed tower distributor, and the bottom of the packed tower is connected with an amine-rich liquid discharging pipeline.
As the preferred embodiment of the utility model, one atomizing nozzle is installed on each distribution hole on the liquid film bed distributor and the packed tower distributor, and the nozzle of the atomizing nozzle is vertically downward.
As the preferred embodiment of the present invention, the inner core hole plate of the liquid membrane bed is uniformly distributed with fiber bundle hanging holes, the fiber bundle hanging holes are distributed with fiber bundle hook horizontal pins, the fiber bundle hook horizontal pins (71) are connected with the fiber bundle hook, the fiber bundle passes through the fiber bundle hook horizontal pins and the fiber bundle hook is uniformly fixed on the inner core hole plate of the liquid membrane bed.
As the preferred embodiment of the utility model, the fiber bundle contains a plurality of cellosilk, the diameter of the cellosilk is 0.05-0.2mm, the surface of the cellosilk is treated by hydrophilic modification technology, the hydrophilic angle is not more than 5 degrees, and the fiber bundle is in a continuous ripple shape or a spiral shape.
As a preferred embodiment of the utility model, the packing of the packed tower is random packing or regular packing.
As a preferred embodiment of the present invention, the packed tower has a height to diameter ratio of 4 to 7.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific methods of use and examples below.
When the device is used specifically, firstly, amine liquid with pressure forms ultrafine fog-like liquid drops through a liquid film bed distributor and a liquid film bed atomizing nozzle, the ultrafine fog-like liquid drops extend on the surface of a hydrophilic fiber yarn to form an amine liquid film with micron-sized thickness, the amine liquid film is in full contact with a gas-phase material with pressure, the amine liquid absorbs hydrogen sulfide in the gas-phase material, then the gas-phase material is separated from the amine liquid when the ammonia liquid passes through the bottom of an inner sleeve of the liquid film bed, the separated amine liquid is sent into a packed tower through a liquid film bed amine liquid discharge pipeline, the amine liquid forms ultrafine fog-like liquid drops through a packed tower distributor and a packed tower atomizing nozzle, the atomized liquid drops formed through the packed tower atomizing nozzle are uniformly sprayed on a packed tower filler to form an amine liquid film, the amine liquid film formed on the packed tower filler and the gas-phase material from the liquid film bed reversely flow and are fully contacted, so that a small amount of hydrogen sulfide remained in the gas-phase material is absorbed, and sending the rich amine liquid after absorbing the hydrogen sulfide again to an amine liquid regeneration device from an outlet at the bottom of the packed tower, and sending the gas-phase material absorbing the hydrogen sulfide again to a recovery device through a defoaming net at the upper space and the top of the packed tower.
Example 1:
a catalytic device of a certain oil refinery produces dry gas materials, the flow rate of the dry gas materials is 20000Nm3/h, the operating pressure is 0.6MPa (G), the hydrogen sulfide content is 30000 Nm3, a liquid membrane bed and packed tower two-stage amine liquid absorption and hydrogen sulfide removal process is adopted, the amine liquid circulation flow rate is 50-55t/h, the hydrogen sulfide content in the amine-rich liquid is 15-22g/L, and the hydrogen sulfide content in the desulfurized dry gas materials is less than 20mg/m 3.
Example 2:
the flow rate of natural gas produced in a certain oil and gas field is 10-16 ten thousand Nm3/h, the operating pressure is 1.2MPa (G), the hydrogen sulfide content is 30000-50000mg/m3, a two-stage amine liquid absorption and hydrogen sulfide removal process of a liquid membrane bed and an atomizing packed tower is adopted, the flow rate of the amine liquid is 180-200t/h, the hydrogen sulfide content in the amine-rich liquid is 20-25g/L, and the hydrogen sulfide content in the natural gas after removal is less than 10mg/m 3.
Comparative example 1:
when a catalytic device of a certain oil refinery produces dry gas materials, the flow rate of the dry gas materials is 20000Nm3/h, the operating pressure is 0.6MPa (G), the hydrogen sulfide content is 30000 Nm3, the adopted process adopts the amine liquid circulation flow rate of 120 f 3, the amine liquid absorption and hydrogen sulfide removal process of a sieve plate tower is adopted, the hydrogen sulfide content in the amine-rich liquid is 3-4g/L, and the hydrogen sulfide content in the desulfurized dry gas materials is more than 50mg/m 3.
Comparative example 2:
the flow rate of natural gas produced in a certain oil and gas field is 10-16 ten thousand Nm3/h, the operating pressure is 1.2MPa (G), the hydrogen sulfide content is 30000-50000mg/m3, the process of absorbing and removing hydrogen sulfide by amine liquid of a packed tower is adopted, the flow rate of the amine liquid is 400-420t/h, the hydrogen sulfide content in the amine-rich liquid is 4-5g/L, and the hydrogen sulfide content in the natural gas after removal is more than 60mg/m 3.
By comparing the example 1 with the comparative example 1 and comparing the example 2 with the comparative example 2, it is obvious that by adopting the two-stage amine liquid absorption and hydrogen sulfide removal process of the liquid membrane bed and the packed tower, the hydrogen sulfide content in the rich amine liquid is greatly improved, which shows that by adopting the process of the invention, the efficiency of absorbing hydrogen sulfide by the amine liquid can be greatly improved, meanwhile, the circulation flow of the amine liquid is greatly reduced after adopting the process of the invention, the reduction range is over 50 percent, and the amine liquid regeneration energy consumption and the gas phase material desulfurization cost can be correspondingly reduced by over 50 percent.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a device of gaseous phase material liquid film bed hydrogen sulfide removal which characterized in that: the device comprises a liquid film bed (1) and a packed tower (8), wherein a liquid film bed distributor (3) is installed at the top of the liquid film bed (1), liquid film bed atomizing nozzles (4) are uniformly distributed on the liquid film bed distributor (3), a flange (5) is installed at the upper part of the liquid film bed (1), the flange (5) is connected with a liquid film bed inner core pore plate (6), a fiber bundle (7) is fixed on the liquid film bed inner core pore plate (6), and a liquid film bed inner sleeve (2) is welded at the outer side of the liquid film bed inner core pore plate (6);
a defoaming net (10) is installed at the top of the packed tower (8), a packed tower distributor (11) is installed at the upper part of the packed tower (8), packed tower atomizing nozzles (12) are uniformly distributed on the packed tower distributor (11), and packing (9) is installed below the packed tower atomizing nozzles (12);
the top of the liquid film bed (1) is connected with a gas phase material feeding pipeline (21), the upper side part of the liquid film bed inner sleeve (2) is connected with a liquid film bed gas phase material discharging pipeline (22), the liquid film bed gas phase material discharging pipeline (22) is connected with the lower side part of the packed tower (8), and the top of the packed tower (8) is connected with a gas phase material discharging pipeline (23); the upper side part of the liquid film bed (1) is connected with an amine liquid feeding pipeline (24), the amine liquid feeding pipeline (24) is connected with a liquid film bed distributor (3), the bottom of the liquid film bed (1) is connected with a liquid film bed amine liquid discharging pipeline (25), the liquid film bed amine liquid discharging pipeline (25) is connected with a packed tower distributor (11), and the bottom of a packed tower (8) is connected with an amine-rich liquid discharging pipeline (26).
2. The apparatus for removing hydrogen sulfide from a gas phase material liquid film bed according to claim 1, wherein: and each distribution hole on the liquid film bed distributor (3) and the packed tower distributor (11) is provided with an atomizing nozzle, and the nozzles of the atomizing nozzles are vertically downward.
3. The apparatus for removing hydrogen sulfide from a gas phase material liquid film bed according to claim 1, wherein: fiber bundle hanging holes (72) are uniformly distributed in the liquid membrane bed inner core pore plate (6), fiber bundle hook transverse pins (71) are distributed in the fiber bundle hanging holes (72), the fiber bundle hook transverse pins (71) are connected with fiber bundle hooks (73), and the fiber bundles (7) are uniformly fixed on the liquid membrane bed inner core pore plate (6) through the fiber bundle hook transverse pins (71) and the fiber bundle hooks (73).
4. The apparatus for removing hydrogen sulfide from a gas phase material liquid film bed according to claim 3, wherein: the fiber bundle (7) comprises a plurality of fiber yarns, the diameter of each fiber yarn is 0.05-0.2mm, the surfaces of the fiber yarns are treated by a hydrophilic modification technology, the hydrophilic angle is not more than 5 degrees, and the fiber bundle (7) is in a continuous corrugated shape or a spiral shape.
5. The apparatus for removing hydrogen sulfide from a gas phase material liquid film bed according to claim 1, wherein: the packing (9) of the packed tower (8) is random packing or regular packing.
6. The apparatus for removing hydrogen sulfide from a gas phase material liquid film bed according to claim 1, wherein: the height-diameter ratio of the packed tower (8) is 4-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021312110.9U CN212701273U (en) | 2020-07-07 | 2020-07-07 | Device for removing hydrogen sulfide from gas phase material liquid film bed |
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| CN202021312110.9U CN212701273U (en) | 2020-07-07 | 2020-07-07 | Device for removing hydrogen sulfide from gas phase material liquid film bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046287A (en) * | 2023-10-11 | 2023-11-14 | 振华新材料(东营)有限公司 | Alkali washing neutralization device for butadiene rubber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046287A (en) * | 2023-10-11 | 2023-11-14 | 振华新材料(东营)有限公司 | Alkali washing neutralization device for butadiene rubber |
| CN117046287B (en) * | 2023-10-11 | 2023-12-19 | 振华新材料(东营)有限公司 | Alkali washing neutralization device for butadiene rubber |
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