A high-efficiency mass transfer mechanism inside a natural gas deacidification tower

Abstract

This invention discloses a high-efficiency mass transfer mechanism inside a natural gas desulfurization tower, comprising: a desulfurization tower, wherein the interior of the desulfurization tower is provided with a packing mechanism, a desulfurization mechanism, and a recovery mechanism; the packing mechanism includes a rotating rod, rotating blades, and a packing layer; the desulfurization mechanism includes a spraying device and a baffle; the recovery mechanism includes a regeneration tank, a heating device, a cooling device, and a conveying pipe; the natural gas is controlled by the airflow through the rotating blades in the packing mechanism, and then reacts with the fixed desulfurizing agent inside the packing layer on the surface for preliminary desulfurization; then it enters the baffle to contact the packing and is simultaneously sprayed and neutralized; the sprayed liquid enters the regeneration tank for lean amine regeneration, completing the cycle operation; and after a certain period of neutralization, the fixed desulfurizing agent moves up and down through ball bearings, and is pushed by a scraper into the material tank for stripping reaction; then it is refilled into the packing layer through the material pipe, completing the automated operation and improving the efficiency of desulfurization.

Description

Technical Field

[0001] This invention relates to the field of natural gas equipment technology, specifically to a high-efficiency mass transfer mechanism inside a natural gas deacidification tower. Background Technology

[0002] Natural gas extracted from oil and gas wells typically contains hydrogen sulfide, carbon dioxide, and organic sulfur compounds. These sulfur compounds not only make the natural gas acidic, which can corrode pipelines and equipment, but also make steel brittle and crack, causing safety accidents. Therefore, natural gas extracted from oil and gas fields must undergo strict deacidification treatment to remove acidic gas components in order to meet the requirements for pipeline transportation and subsequent use. Existing deacidification towers mainly utilize the packing layer to contact natural gas, while a spraying device sprays lean amine solution to neutralize the acidity in the natural gas before the natural gas is discharged. However, since the lean amine solution is sprayed, the appropriate spraying rate needs to be controlled when it comes into contact with natural gas, and the spraying needs to be sufficient to maintain the acid removal rate, which is relatively wasteful of resources and cannot operate efficiently. Summary of the Invention

[0003] The purpose of this invention is to provide a highly efficient mass transfer mechanism inside a natural gas deacidification tower to solve the problems mentioned in the background art.

[0004] By adopting the above technical solution, the acidic substances in natural gas can be thoroughly cleaned, and high efficiency and high cleanliness can be achieved in the cleaning process.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: the natural gas is controlled by the rotating blades in the packing mechanism, and then reacts with the fixed desulfurizing agent inside the packing layer on the surface for preliminary deacidification. Then it enters the baffle to contact the packing and is sprayed and neutralized at the same time. The sprayed liquid enters the regeneration tank for lean amine regeneration, completing the cycle operation. After a certain amount of neutralization, the fixed desulfurizing agent moves up and down through the ball blocks, and the scraper pushes the desulfurizing agent into the material tank for stripping reaction. Then it is refilled into the packing layer through the material pipe, completing the automated operation and improving the efficiency of deacidification. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the side cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention.

[0007] In the diagram: 1. Deacidification tower; 2. Packing mechanism; 201. Rotating rod; 202. Rotating blade; 203. Packing layer; 204. Ball bearing block; 205. Scraper; 3. Deacidification mechanism; 301. Spraying device; 302. Baffle; 4. Recovery mechanism; 401. Regeneration box; 402. Heating device; 403. Cooling device; 404. Conveying pipe; 405. Lean amine box; 5. Material box; 6. Stripping component; 7. Material pipe; 8. Gas outlet; 9. Gas inlet. Detailed Implementation

[0008] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0009] Please see Figure 1-3 This invention provides a technical solution: a high-efficiency mass transfer mechanism inside a natural gas deacidification tower, comprising: a deacidification tower 1, wherein the interior of the deacidification tower 1 is provided with a packing mechanism 2, a deacidification mechanism 3, and a recovery mechanism 4; the packing mechanism 2 includes a rotating rod 201, a rotating blade 202, and a packing layer 203; the deacidification mechanism 3 includes a spray device 301 and a baffle 302; the recovery mechanism 4 includes a regeneration box 401, a heating device 402, a cooling device 403, and a conveying pipe 404; the natural gas undergoes preliminary filtration through the packing mechanism 2, and then enters the deacidification mechanism 3 for spraying of lean amine solution; the recovery mechanism 4 re-reacts and recycles the rich amine solution after reaction, completing the cycle operation; the top and outer sides of the deacidification tower 1 are respectively fixedly connected to an outlet 8 and an inlet 9 for the entry and exit of natural gas.

[0010] The desulfurization tower 1 is internally connected to a rotating rod 201. A rotating blade 202 is fixedly connected to the outer wall of the rotating rod 201. A packing layer 203 is fixedly connected to the surface of the rotating blade 202. A ball bearing block 204 is engaged with the outer side of the rotating rod 201. A scraper 205 is fixedly connected to the outer wall of the ball bearing block 204. The ball bearing block 204 and the scraper 205 are located above and in contact with the rotating blade 202. The ball bearing block 204 is equipped with a self-locking device, which locks when lifting or lowering is required, thereby enabling the scraper 205 to be lifted or lowered. The surface of the packing layer 203 is covered with a solid desulfurizing agent, which can contact and push the scraper 205. The rotation of the rotating rod 201 controls the airflow, completes the gravity separation reaction, and increases efficiency.

[0011] Inside the deacidification tower 1, above the packing mechanism 2, there is a deacidification mechanism 3. Inside the deacidification tower 1, there is a spray device 301 fixedly connected. Below the spray device 301, there is a baffle 302 fixedly connected. The baffle 302 is in contact with the rotating rod 201, and the top of the rotating rod 201 has a collection hole 304. The spray device 301 sprays the lean amine liquid into contact with the packing of the baffle 302 to complete the reaction. Then the reacted liquid enters the regeneration tank 401 from the collection hole 304.

[0012] A regeneration tank 401 is fixedly connected inside the deacidification tower 1. A heating device 402 is fixedly connected inside the regeneration tank 401. A lean amine tank 405 is provided outside the regeneration tank 401. A cooling device 403 is provided inside the lean amine tank 405. The lean amine tank 405 and the spray device 301 are connected through a conveying pipe 404. The heating device 402 in the regeneration tank 401 converts rich amine into lean amine liquid, which then enters the lean amine tank 405 for cooling and is then reused through the conveying pipe 404.

[0013] The outer side of the recycling box 401 is provided with a material box 5, the inside of the material box 5 is provided with a stripping component 6, and the inside of the material box 5 is fixedly connected with a material pipe 7. The top of the material pipe 7 is located above the rotating blade 202. The solid vulcanizing agent is fed into the material box 5 through the scraper 205, and then the stripping component 6 performs stripping to remove moisture. Then the dried vulcanizing agent is re-laid on the packing layer 203 from the material pipe 7.

Claims

1. A high-efficiency mass transfer mechanism inside a natural gas deacidification tower, characterized in that: include: A deacidification tower (1) is provided with a packing mechanism (2), a deacidification mechanism (3) and a recovery mechanism (4) inside. The packing mechanism (2) includes a rotating rod (201), a rotating blade (202) and a packing layer (203). The deacidification mechanism (3) includes a spray device (301) and a baffle (302). The recovery mechanism (4) includes a regeneration box (401), a heating device (402), a cooling device (403) and a conveying pipe (404).

2. The high-efficiency mass transfer mechanism inside a natural gas deacidification tower according to claim 1, characterized in that: The deacidification tower (1) is internally connected to a rotating rod (201), and a rotating blade (202) is fixedly connected to the outer wall of the rotating rod (201). A packing layer (203) is fixedly connected to the surface of the rotating blade (202). A ball block (204) is engaged with the outer side of the rotating rod (201), and a scraper (205) is fixedly connected to the outer wall of the ball block (204). The ball block (204) and the scraper (205) are located above and in contact with the rotating blade (202).

3. The high-efficiency mass transfer mechanism inside a natural gas deacidification tower according to claim 1, characterized in that: The deacidification tower (1) is located above the packing mechanism (2) and has a deacidification mechanism (3). A spray device (301) is fixedly connected inside the deacidification tower (1). A baffle (302) is fixedly connected below the spray device (301). The baffle (302) is in contact with the rotating rod (201), and a collection hole (304) is opened at the top of the rotating rod (201).

4. The high-efficiency mass transfer mechanism inside a natural gas deacidification tower according to claim 1, characterized in that: The deacidification tower (1) is fixedly connected to a regeneration tank (401), and a heating device (402) is fixedly connected to the inside of the regeneration tank (401). A lean amine tank (405) is provided on the outside of the regeneration tank (401), and a cooling device (403) is provided inside the lean amine tank (405). The lean amine tank (405) and the spray device (301) are connected through a conveying pipe (404).

5. The high-efficiency mass transfer mechanism inside a natural gas deacidification tower according to claim 1, characterized in that: The recycling box (401) has a material box (5) on its outside. The material box (5) has a stripping component (6) inside. The material box (5) is fixedly connected to a material pipe (7), and the top of the material pipe (7) is located above the rotating blade (202).

6. The high-efficiency mass transfer mechanism inside a natural gas deacidification tower according to claim 1, characterized in that: The top and outer sides of the deacidification tower (1) are respectively fixedly connected to an air outlet (8) and an air inlet (9).

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