Organic amine regeneration system with low energy loss

Abstract

The utility model discloses an organic amine regeneration system with low energy loss, and belongs to the field of organic amine regeneration. Comprising a regeneration tower, a filler, a heating piece and a gas transfer piece, the gas transfer part is used for enabling inert gas to enter the regeneration tower after passing through the heating part; the heating piece is used for heating inert gas; the filler is communicated with the middle of the regeneration tower; the filler is used for adding high-viscosity organic amine into the regeneration tower; and the regeneration tower is also provided with a reaction chamber for the inert gas to contact with the high-viscosity organic amine and an outlet for discharging the high-viscosity organic amine reacted with the inert gas. In the regeneration process of the organic amine, inert gas circulates in the whole system, the inert gas is heated by steam to reach a certain temperature and enters the regeneration tower, and the inert gas in the regeneration tower is in direct contact with the high-viscosity organic amine, so that the heat transfer efficiency is high, and the temperature of the organic amine can be quickly increased.

Description

Technical Field

[0001] The present application relates to the field of organic amine regeneration, and more particularly, to an organic amine regeneration system with low energy loss. Background Art

[0002] Organic amine regeneration is mainly achieved by using a heat exchange device to contact and exchange heat with the organic amine to heat the organic amine. However, this results in low heat transfer efficiency, slow temperature rise rate of the organic amine, long residence time in the regeneration tower, causing a large amount of organic amine degradation and low regeneration efficiency. Summary of the Utility Model

[0003] The content part of the present application is used to briefly introduce concepts, which will be described in detail in the following detailed implementation part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0004] To solve the technical problems mentioned in the above background art part, some embodiments of the present application provide an organic amine regeneration system with low energy loss, including a regeneration tower, packing, a heating element, and a gas transfer element; the gas transfer element is used to make inert gas enter the regeneration tower after passing through the heating element; the heating element is used to heat the inert gas; the packing is connected to the middle part of the regeneration tower; the packing is used to add high-viscosity organic amine into the regeneration tower; the regeneration tower also forms a reaction chamber for the inert gas and the high-viscosity organic amine to contact and an outlet for discharging the regenerated organic amine after reacting with the inert gas.

[0005] During the organic amine regeneration process, inert gas circulates in the whole system, and the inert gas is heated by the heating element to reach a certain temperature and then enters the regeneration tower. In the regeneration tower, the inert gas directly contacts with the high-viscosity organic amine, with high heat transfer efficiency, and can quickly raise the temperature of the organic amine.

[0006] Further, the regeneration tower forms an air inlet for the gas transfer element to introduce the heated inert gas; the air inlet is located below the packing.

[0007] Further, the regeneration tower also forms an air outlet, and the air outlet is located above the packing.

[0008] Further, it further includes: a gas-liquid separator, which is connected to the air outlet of the regeneration tower; the gas-liquid separator is used to filter the water in the inert gas and re-introduce the filtered inert gas into the regeneration tower through the heating element and the gas transfer element.

[0009] Further, it further includes: a liquid storage tank, which is connected to the outlet of the regeneration tower.

[0010] Further, the gas-liquid separator is also used to add the filtered water in the inert gas to the liquid storage tank.

[0011] Further, the heating element is a heat exchanger.

[0012] Further, the heating element is a steam heat exchanger.

[0013] Further, a plurality of gas transfer members can be provided, which are respectively connected to the regeneration tower below the packing of the regeneration tower.

[0014] Further, it further includes: a connecting frame, which is used to form a plurality of installation chambers for installing and fixing the gas transfer members. The plurality of installation chambers are vertically arranged in the connecting frame, and the connecting frame is a vertically placed strip-shaped frame body.

[0015] The beneficial effect of the present application is that during the regeneration process of the organic amine, the inert gas circulates in the whole system, and the inert gas is heated by the heating element to reach a certain temperature and then enters the regeneration tower. In the regeneration tower, the inert gas directly contacts with the highly viscous organic amine, and the heat transfer efficiency is high, which can quickly raise the temperature of the organic amine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and components are not necessarily drawn to scale.

[0018] In the drawings:

[0019] Figure 1 is the overall schematic diagram according to the embodiment of the present application;

[0020] Figure 2 is the structural schematic diagram of a part of the embodiment, mainly showing the structural diagram of the connecting frame and some surrounding parts;

[0021] Figure 3 is the structural schematic diagram of a part of the embodiment, mainly showing the structural diagram of the regeneration tower and some surrounding parts.

[0022] Reference Numerals:

[0023] 1. Regeneration tower; 2. Packing; 3. Heat exchanger; 4. Air pump; 5. Gas-liquid separator; 6. Liquid storage tank; 7. Connecting frame; 8. Connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0025] In addition, it should be noted that for the sake of convenience of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0026] It should be noted that concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0027] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0028] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] Refer to Figures 1-3 ,

[0030] A low-loss organic amine regeneration system includes a regeneration tower 1, a filler 2, a heating member, and a gas transfer member;

[0031] The gas transfer member is used to allow the inert gas to enter the regeneration tower 1 after passing through the heating member; the heating member is used to heat the inert gas; the filler 2 is communicated with the middle part of the regeneration tower 1; the filler 2 is used to add high-viscosity organic amine into the regeneration tower 1; the regeneration tower 1 also forms a reaction chamber for the inert gas and the high-viscosity organic amine to contact and an outlet for discharging the regenerated organic amine after reacting with the inert gas. In this embodiment, the heating member is a heat exchanger 3 and the gas transfer member is a gas pump 4.

[0032] The purpose of the gas transfer member is to enable the inert gas after heat exchange to quickly enter the regeneration tower 1. In this process, the stagnation of the inert gas should be avoided, and the temperature of the inert gas should be kept as constant as possible. The gas transfer member enables the inert gas after heat exchange to enter the regeneration tower 1 more quickly to ensure that the temperature of the inert gas does not change too much.

[0033] Specifically, the regeneration tower 1 forms an air inlet through which the inert gas after heat exchange by the air supply pump 4 passes; the air inlet is located below the packing 2, and a pipeline is provided at the air inlet, and the pipeline is used to enable the heat exchanger 3 to send the inert gas into the regeneration tower 1. In the reaction chamber, since the air inlet is located below the packing 2, the inert gas entering from the air inlet will flow from bottom to top, while the highly viscous organic amine will flow from top to bottom. When the two come into contact with each other, since their flow directions are opposite, they will form a countercurrent contact. The countercurrent contact is mainly to make the inert gas collide with the highly viscous organic amine. On the one hand, it can reduce the falling speed of the organic amine, enable the organic amine to contact the inert gas more, increase the contact time between the organic amine and the inert gas, increase the heat exchange contact area, and make the heating more uniform, thereby reducing the viscosity of the organic amine and obtaining the regenerated organic amine. Nitrogen is preferably used as the inert gas.

[0034] Specifically, the regeneration tower 1 also forms an air outlet, the air outlet is located above the packing 2, and a connecting pipe 8 is provided at the air outlet. The connecting pipe 8 connects the air outlet with the heat exchanger 3. The air outlet is used to discharge the inert gas in the regeneration tower 1 to the outside. The inert gas will reach the heat exchanger 3 after passing through the connecting pipe 8, and after being reheated, it will enter the regeneration tower 1 again through the gas transfer member, achieving the effect of recycling and facilitating the inert gas.

[0035] Some specific solutions of the present application: A low-loss organic amine regeneration system further includes: a gas-liquid separator 5, the gas-liquid separator 5 is communicated with the air outlet of the regeneration tower 1, and the gas-liquid separator 5 is also connected to the heat exchanger 3 through a pipeline. The gas-liquid separator 5 is used to filter out the water in the inert gas after contacting with the highly viscous organic amine. The gas-liquid separator 5 adopts the prior art. After passing through the gas-liquid separator 5, the inert gas becomes drier. When the inert gas passes through the heat exchanger 3 again, due to the loss of moisture in the inert gas, the time wasted on moisture evaporation during the heat exchange process is avoided, and the heat exchanger 3 can heat the inert gas more quickly, so that the inert gas after heat exchange can reach a certain temperature faster and enter the regeneration tower 1 again through the air pump 4.

[0036] Specifically, a low-loss organic amine regeneration system further includes: a liquid storage tank 6, the liquid storage tank 6 is communicated with the outlet of the regeneration tower 1, and the regenerated organic amine generated after the highly viscous organic amine contacts the inert gas enters the liquid storage tank 6 for storage through the outlet of the regeneration tower 1.

[0037] Specifically, a pipeline connecting the liquid storage tank 6 is provided below the gas-liquid separator 5. The inert gas enters the gas-liquid separator 5 from the air outlet of the regeneration tower 1. The inert gas accumulates in the liquid separator and will continue to flow upward, while the gas-liquid separator 5 will cause the moisture in the inert gas to fall, and these moisture will enter the liquid storage tank 6 through the pipeline connecting the gas-liquid separator 5 and the liquid storage tank 6.

[0038] In some other embodiments, the heating element is a steam heat exchanger 3 .

[0039] Specifically, the air pump 4 can be provided in plurality, and the air pump 4 is respectively connected to the regeneration tower 1 below the filler 2 of the regeneration tower 1. The air pump 4 is provided in plurality, and the input ports of the plurality of air pumps 4 are the same input port, and the input port is connected to the heat exchanger 3. The output ports of the plurality of air pumps 4 are also provided as an output port, and the output port is connected to the regeneration tower 1. The plurality of air pumps 4 are provided with the same input port and output port, which can better avoid the stagnation of the inert gas, ensure that the temperature of the inert gas does not change too much, and avoid the heat loss of the inert gas as much as possible. The inert gas entering the regeneration tower 1 through the air pump 4 can better reduce the viscosity of the organic amine.

[0040] Specifically, a low-loss organic amine regeneration system also includes: a connecting frame 7, the connecting frame 7 is used to form a plurality of installation chambers for installing and fixing air pumps 4, and the plurality of installation chambers are arranged vertically in the connecting frame 7, so that the connecting frame 7 is a vertically placed strip frame, and the plurality of air pumps 4 are placed vertically on the connecting frame 7, thereby reducing the space occupied by the plurality of air pumps 4 when running at the same time. The above description is only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form a technical solution.

Claims

1. A low energy loss organic amine regeneration system, characterized in that: include: Regeneration towers, packings, heating elements and gas transfer components; The gas transfer element is used to allow the inert gas to enter the regeneration tower after passing through the heating element; the heating element is used to heat the inert gas; The filler is connected to the middle of the regeneration tower; the filler is used to add high-viscosity organic amine into the regeneration tower; The regeneration tower also forms a reaction chamber for contacting the inert gas and the high-viscosity organic amine, and an outlet for discharging the regenerated organic amine after reacting with the inert gas.

2. The low energy loss organic amine regeneration system according to claim 1, characterized in that: The regeneration tower forms an air inlet for the gas transfer member to introduce the heated inert gas; the air inlet is located below the packing.

3. A low energy loss organic amine regeneration system according to claim 2, characterized in that: The regeneration tower also forms a gas outlet, which is located above the filler.

4. The low energy loss organic amine regeneration system according to claim 1, characterized in that: It also includes: a gas-liquid separator, which is connected to the gas outlet of the regeneration tower; the gas-liquid separator is used to filter the water in the inert gas and re-enter the filtered inert gas into the regeneration tower through the heating element and the gas transfer element.

5. The low energy loss organic amine regeneration system according to claim 1, characterized in that: Also includes: The liquid storage tank is connected with the outlet of the regeneration tower.

6. The low energy loss organic amine regeneration system according to claim 4, characterized in that: The gas-liquid separator is also used to add the filtered water in the inert gas into the liquid storage tank.

7. The low energy loss organic amine regeneration system according to claim 1, characterized in that: The heating element is a heat exchanger.

8. The low energy loss organic amine regeneration system according to claim 1, characterized in that: The heating element is a steam heat exchanger.

9. The low energy loss organic amine regeneration system according to claim 1, characterized in that: The gas transfer member may be provided in plurality and connected to the regeneration tower below the packing of the regeneration tower respectively.

10. The low energy loss organic amine regeneration system according to claim 1, characterized in that: It also includes: a connecting frame, which is used to form a plurality of installation chambers for installing and fixing gas transfer components, and the plurality of installation chambers are vertically arranged in the connecting frame, and the connecting frame is a vertically placed strip frame body.

Images