Hydrocarbonylation reaction tail gas recovery device

Abstract

The utility model discloses a hydrocarbonylation reaction tail gas recovery device which comprises a tail gas aftercooler, an oil-water separation tank and a tail gas inlet pipe, tail gas enters the tail gas aftercooler through the tail gas inlet pipe to be cooled, and a first pipeline is arranged between the tail gas aftercooler and the oil-water separation tank. And the cooled raw materials are conveyed into the oil-water separation tank through the first pipeline for water separation. Water contained in the raw materials is separated out, the separated water is discharged through a water discharging pipe and enters a sewage treatment system, the raw materials in the oil-water separation tank enter a geosyncline through a discharging pipe and then enter a reaction system again, tail gas in the tail gas aftercooler enters a heating furnace through a second pipeline to be combusted, and the tail gas is further cooled and then enters a second pipeline; and meanwhile, water carried in the raw materials is separated out, and the quality of the recycled raw materials is improved. After raw materials entering the heating furnace are reduced, the heating furnace can be controlled more easily, and the risk that emissions exceed the standard is reduced.

Description

Technical Field

[0001] The utility model specifically relates to a alkylation reaction tail gas recovery device. Background Art

[0002] Alkylation reaction is a coupling method commonly used in enzyme immobilization technology. It is to alkylate and arylate polymers with halogen-substituted aromatic rings or halogen-substituted heterocyclic rings and polymers containing haloacetyl groups. Then, under alkaline conditions, they react with amino groups, phenol groups, sulfhydryl groups, etc. on the enzyme molecules.

[0003] After the reaction, the existing tail gas is insufficient to recover raw materials after passing through the tail gas condenser, and part of the raw materials and non-condensable gas enter the heating furnace, wasting the raw materials. At the same time, it may cause the emissions of the heating furnace to exceed the standard. Utility Model Content

[0004] The utility model aims to provide a alkylation reaction tail gas recovery device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydrocarbonization reaction tail gas recovery device, comprising a tail gas aftercooler, an oil-water separation tank and a tail gas intake pipe, the tail gas enters the tail gas aftercooler through the tail gas intake pipe for cooling, a first pipeline is arranged between the tail gas aftercooler and the oil-water separation tank, and the cooled raw material is transmitted to the oil-water separation tank through the first pipeline for water separation.

[0006] Preferably, a circulating water inlet pipe and a circulating water outlet pipe are respectively provided on the outside of the exhaust gas aftercooler.

[0007] Preferably, a second pipe is provided on the outside of the exhaust gas aftercooler, and the second pipe is used for discharging exhaust gas.

[0008] Preferably, the end of the second pipeline away from the exhaust gas aftercooler is connected to an exhaust gas heating furnace.

[0009] Preferably, a drain pipe is provided on the outside of the oil-water separation tank.

[0010] Preferably, a discharge pipe is provided on the outside of the oil-water separation tank.

[0011] Preferably, one end of the discharge pipe away from the oil-water separation tank is connected to a ground trough.

[0012] The technical effects and advantages of the utility model are as follows: the tail gas recovery device for the hydrocarbon reaction enters the tail gas aftercooler through the tail gas inlet pipe, further recovers the raw materials in the tail gas through the tail gas aftercooler, allows the raw materials to enter the oil-water separation tank through the first pipeline, separates the water contained in the raw materials, and discharges the separated water through the drain pipe and enters the sewage treatment system. The raw materials in the oil-water separation tank enter the ground trough through the discharge pipe and then re-enter the reaction system. The tail gas in the tail gas aftercooler enters the heating furnace for combustion through the second pipeline. After the tail gas is further cooled, more raw materials can be recovered, and the water entrained in the raw materials can be separated to improve the quality of the recovered raw materials. After reducing the raw materials entering the heating furnace, it is more conducive to controlling the heating furnace and reducing the risk of exceeding the emission standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] In the figure: 1. exhaust gas aftercooler; 2. oil-water separation tank; 3. exhaust gas intake pipe; 4. first pipeline; 5. circulating water inlet pipe; 6. circulating water outlet pipe; 7. second pipeline; 8. drain pipe; 9. discharge pipe. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] In order to better control the heating furnace, refer to Figure 1 As shown, it includes an exhaust aftercooler 1, an oil-water separator 2 and an exhaust intake pipe 3. The exhaust enters the exhaust aftercooler 1 through the exhaust intake pipe 3 for cooling. A first pipeline 4 is arranged between the exhaust aftercooler 1 and the oil-water separator 2. The cooled raw material is transmitted to the oil-water separator 2 through the first pipeline 4 for water separation. The exhaust enters the exhaust aftercooler 1 through the exhaust intake pipe 3. The raw material in the exhaust is further recovered through the exhaust aftercooler 1. The raw material enters the oil-water separator 2 through the first pipeline 4, and the water contained in the raw material is separated. The separated water is discharged through the drain pipe 8 and enters the sewage treatment system. The raw material in the oil-water separator 2 enters the ground trough through the discharge pipe 9 and then re-enters the reaction system. The exhaust in the exhaust aftercooler 1 enters the heating furnace through the second pipeline 7 for combustion. After the exhaust is further cooled, more raw materials can be recovered, and the water entrained in the raw material is separated to improve the quality of the recovered raw materials. After reducing the raw materials entering the heating furnace, it is more conducive to controlling the heating furnace and reducing the risk of exceeding the emission standard.

[0017] In order to improve the quality of recycled raw materials, refer to Figure 1As shown, the outer side of the exhaust gas aftercooler 1 is respectively provided with a circulating water inlet pipe 5 and a circulating water outlet pipe 6. Through the circulating water inlet pipe 5 and the circulating water outlet pipe 6, water flows in the exhaust gas aftercooler 1 to form a water cycle, so that the raw materials in the exhaust gas aftercooler 1 can be cooled. The outer side of the exhaust gas aftercooler 1 is provided with a second pipeline 7, and the second pipeline 7 is used to discharge the exhaust gas. The exhaust gas is discharged through the second pipeline 7. The end of the second pipeline 7 away from the exhaust gas aftercooler 1 is connected to the exhaust gas heating furnace, and the exhaust gas in the exhaust gas aftercooler 1 is discharged to the heating furnace for combustion through the second pipeline 7. The outer side of the oil-water separation tank 2 is provided with a drain pipe 8, and the drain pipe 8 can discharge the water separated from the oil-water separation tank 2 into the sewage treatment system to protect the environment. The outer side of the oil-water separation tank 2 is provided with a discharge pipe 9, and the end of the discharge pipe 9 away from the oil-water separation tank 2 is connected to a ground trough. After the discharge pipe 9 discharges the raw materials in the oil-water separation tank 2 to the ground trough, it re-enters the reaction system.

[0018] When in use, the exhaust gas is first passed through the exhaust gas inlet pipe 3 into the exhaust gas aftercooler 1, and the raw materials in the exhaust gas are further recovered through the exhaust gas aftercooler 1. The raw materials enter the oil-water separation tank 2 through the first pipeline 4, and the water contained in the raw materials is separated. The separated water is discharged through the drain pipe 8 and enters the sewage treatment system. The raw materials in the oil-water separation tank 2 enter the ground trough through the discharge pipe 9 and then re-enter the reaction system. The exhaust gas in the exhaust aftercooler 1 enters the heating furnace through the second pipeline 7 for combustion. After the exhaust gas is further cooled, more raw materials can be recovered.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A alkylation reaction tail gas recovery device, characterized in that: The invention comprises an exhaust gas aftercooler (1), an oil-water separation tank (2) and an exhaust gas intake pipe (3); the exhaust gas enters the exhaust gas aftercooler (1) through the exhaust gas intake pipe (3) for cooling; a first pipeline (4) is arranged between the exhaust gas aftercooler (1) and the oil-water separation tank (2); the cooled raw material is transmitted to the oil-water separation tank (2) through the first pipeline (4) for water separation.

2. The alkylation reaction tail gas recovery device according to claim 1, characterized in that: A circulating water inlet pipe (5) and a circulating water outlet pipe (6) are respectively arranged on the outside of the exhaust gas aftercooler (1).

3. The alkylation reaction tail gas recovery device according to claim 1, characterized in that: A second pipe (7) is arranged outside the exhaust gas aftercooler (1), and the second pipe (7) is used for discharging exhaust gas.

4. The alkylation reaction tail gas recovery device according to claim 3, characterized in that: One end of the second pipe (7) away from the exhaust gas aftercooler (1) is connected to an exhaust gas heating furnace.

5. The alkylation reaction tail gas recovery device according to claim 1, characterized in that: A drainage pipe (8) is arranged outside the oil-water separation tank (2).

6. The alkylation reaction tail gas recovery device according to claim 1, characterized in that: A discharge pipe (9) is provided outside the oil-water separation tank (2).

7. The alkylation reaction tail gas recovery device according to claim 6, characterized in that: One end of the discharge pipe (9) away from the oil-water separation tank (2) is connected to a ground trough.

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