Catalytic oxidation integrated reactor

Abstract

The utility model discloses a catalytic oxidation integrated reactor which comprises an inner separation cylinder, an outer separation cylinder, a three-phase separator, an aeration device, a plurality of inlets, a plurality of outlets and a plurality of pipelines. The reactor is divided into a catalytic reaction inner barrel, an oxidation reaction outer barrel and a solid-liquid-gas separation area by the inner and outer separation barrels and the three-phase separator, so that integration of catalytic oxidation and three-phase separation is realized. The reactor is closed, and the bottom of the reactor is a flat bottom or a conical bottom. The device can realize continuous operation of catalytic ozonation, and has the characteristics of high efficiency, economy, accuracy in control, simplicity and convenience in operation and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to catalytic oxidation equipment field, especially, relate to a catalytic oxidation integrated reactor. BACKGROUND

[0002] Ozone oxidation is a common oxidation technology, and is widely used in water treatment and other fields. However, in the existing ozone oxidation reactor, when ozone contacts with the substance to be oxidized, ozone is prone to decomposition and loss, and the power consumption is high. Under the action of transition metal catalysts such as iron and manganese, the oxidation efficiency of ozone on the substance to be oxidized can be improved, but the reaction system becomes a three-phase coexistence system of solid, liquid and gas. How to effectively avoid ozone decomposition, improve ozone utilization rate and catalytic oxidation efficiency in the three-phase coexistence reactor is the key to the application of ozone catalytic oxidation technology. SUMMARY

[0003] The utility model aims at providing a catalytic oxidation integrated reactor, which realizes solid-liquid-gas three-phase reaction and separation in one reactor, and realizes the circulation and regeneration of the catalyst, to solve the problems of high power consumption, low oxidation efficiency, large ozone consumption and high ozone decomposition rate in the existing system.

[0004] In order to solve the above problems, the utility model provides a catalytic oxidation integrated reactor, which comprises an inner-outer separation cylinder (1), a three-phase separator (2), an aeration device (3), a water inlet I (7), a reagent inlet (8), a water inlet II (9), a bottom outlet (10), a circulation inlet I (11), a circulation inlet II (12), a circulation inlet III (13), a circulation inlet IV (14), a circulation inlet V (15), a circulation inlet VI (16), a gas inlet (17), a gas outlet (18), a water outlet I (19), a water outlet II (20), a sediment outlet (21), and a reagent inlet pipeline (4), a water inlet pipeline I (5), a water inlet pipeline II (6) and a reflux pipeline (22). The inner-outer separation cylinder (1) and the three-phase separator (2) divide the reactor into a catalytic reaction inner cylinder, an oxidation reaction outer cylinder and a solid-liquid-gas separation zone.

[0005] Further, the height of the inner-outer separation cylinder (1) from the bottom of the reactor is 1 / 5-1 / 3 of the total height of the reactor. The inner-outer separation cylinder (1) comprises a cylindrical zone and a conical expansion zone. The height-diameter ratio of the cylindrical zone is 3:1-6:1, and the included angle a between the cylindrical zone and the conical expansion zone is 110°-160°.

[0006] Further, the three-phase separator (2) is located at the top of the reactor. The three-phase separator (2) comprises an exhaust pipe and a conical expansion zone. The height-diameter ratio of the exhaust pipe is 5:1-10:1, the included angle β between the exhaust pipe and the conical expansion zone is 100°-150°, and the exhaust pipe is connected with the gas outlet (18).

[0007] Further, the maximum diameter of the conical expansion area of the inner-outer separation cylinder (1) is 1.2-1.5 times of the diameter of the cylindrical area of the inner-outer separation cylinder (1), and the maximum diameter of the conical expansion area of the three-phase separator (2) is 1.1-1.5 times of the diameter of the cylindrical area of the inner-outer separation cylinder (1).

[0008] Further, the diameter of the aeration disc of the aeration device (3) is 0.8-1.0 times of the diameter of the cylindrical area of the inner-outer separation cylinder (1), the aeration disc is in the conical expansion area of the inner-outer separation cylinder (1), and the aeration device (3) is connected with the gas inlet (17).

[0009] Further, the bottom outlet (10) is connected with the circulating inlets I (11), II (12), III (13) and IV (14), V (15) and VI (16) through the reflux pipeline (22), and the bottom outlet (10) is connected with the sediment outlet (21).

[0010] Further, the water inlet I (7) is connected with the water inlet pipeline I (5), the water inlet II (9) is connected with the water inlet pipeline II (6), and the distance between the water inlet pipeline I (5) and the water inlet pipeline II (6) and the bottom of the reactor is 1 / 5-1 / 8 of the height of the reactor.

[0011] Further, the medicament inlet (8) is connected with the medicament inlet pipeline (4), and the distance between the medicament inlet pipeline (4) and the bottom of the reactor is 1 / 5-1 / 3 of the total height of the reactor.

[0012] Further, the water outlet I (19) and the water outlet II (20) are located on the side of the reactor, and the distance between the water outlet I (19) and the water outlet II (20) and the top of the reactor is 1 / 8-1 / 20 of the height of the reactor.

[0013] Further, the catalytic oxidation integrated reactor is in a closed form, and the bottom of the reactor can be one of a flat bottom and a conical bottom.

[0014] The utility model discloses a following beneficial effect: the utility model discloses through setting up internal and external separation cylinder, three -phase separator divides the reactor into catalytic reaction inner tube, oxidation reaction outer tube, solid -liquid gas separation area three areas.

[0015] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further explained in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings that are part of the cost application are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0017] Figure 1 It is the system schematic diagram of preferred embodiment of the utility model;

[0018] In the drawing: 1 - internal and external separation cylinder, 2 - three -phase separator, 3 - aeration device, 4 - medicament import pipeline, 5 - water import pipeline I, 6 - water import pipeline II, 7 - water import I, 8 - medicament import, 9 - water import II, 10 - bottom outlet, 11 - circulation import I, 12 - circulation import II, 13 - circulation import III, 14 - circulation import IV, 15 - circulation import V, 16 - circulation import VI, 17 - gas import, 18 - gas export, 19 - water export I, 20 - water export II, 21 - sediment outlet, 22 - reflux pipeline. DETAILED DESCRIPTION

[0019] The embodiments and examples of this utility model are described in detail below with reference to the accompanying drawings. However, this utility model can be implemented in many different ways as defined and covered by the claims.

[0020] like Figure 1 As shown, an integrated catalytic oxidation reactor includes: inner and outer separation cylinders (1), a three-phase separator (2), an aeration device (3), and water inlet I (7), reagent inlet (8), water inlet II (9), bottom outlet (10), circulation inlet I (11), circulation inlet II (12), circulation inlet III (13), circulation inlet IV (14), circulation inlet V (15), circulation inlet VI (16), gas inlet (17), gas outlet (18), water outlet I (19), water outlet II (20), sedimentation outlet (21), and reagent inlet pipe (4), water inlet pipe I (5), water inlet pipe II (6), and reflux pipe (22). The inner and outer separation cylinders (1) and the three-phase separator (2) divide the reactor into three areas: the inner catalytic reaction cylinder, the outer oxidation reaction cylinder, and the solid-liquid-gas separation zone.

[0021] The height of the inner-outer separation cylinder (1) from the bottom of the reactor is 1 / 5-1 / 3 of the total height of the reactor. The inner-outer separation cylinder (1) comprises a cylindrical zone and a conical expansion zone. The height-diameter ratio of the cylindrical zone is 3:1-6:1. The included angle a between the cylindrical zone and the conical expansion zone is 110°-160°. The three-phase separator (2) is located at the top of the reactor. The three-phase separator (2) comprises a gas discharge pipe and a conical expansion zone. The height-diameter ratio of the gas discharge pipe is 5:1-10:1. The included angle β between the gas discharge pipe and the conical expansion zone is 100°-150°. The gas discharge pipe is connected with the gas outlet (18). The maximum diameter of the conical expansion zone of the inner-outer separation cylinder (1) is 1.2-1.5 times the diameter of the cylindrical zone of the inner-outer separation cylinder (1). The maximum diameter of the conical expansion zone of the three-phase separator (2) is 1.1-1.5 times the diameter of the cylindrical zone of the inner-outer separation cylinder (1). The diameter of the aeration disc of the aeration device (3) is 0.8-1.0 times the diameter of the cylindrical zone of the inner-outer separation cylinder (1). The aeration disc is located in the conical expansion zone of the inner-outer separation cylinder (1). The aeration device (3) is connected with the gas inlet (17). The bottom outlet (10) is connected with the circulation inlets I (11), II (12), III (13), IV (14), V (15) and VI (16) through the reflux pipeline (22). The bottom outlet (10) is connected with the sediment outlet (21). The water inlet I (7) is connected with the water inlet pipeline I (5). The water inlet II (9) is connected with the water inlet pipeline II (6). The distance between the water inlet pipeline I (5) and the water inlet pipeline II (6) from the bottom of the reactor is 1 / 5-1 / 8 of the height of the reactor. The medicament inlet (8) is connected with the medicament inlet pipeline (4). The distance between the medicament inlet pipeline (4) from the bottom of the reactor is 1 / 5-1 / 3 of the total height of the reactor. The water outlet I (19) and the water outlet II (20) are located on the side of the reactor. The distance between the water outlet I (19) and the water outlet II (20) from the top of the reactor is 1 / 8-1 / 20 of the height of the reactor. The catalytic oxidation integrated reactor is in a closed form. The bottom of the reactor can be one of a flat bottom and a conical bottom.

[0022] The operation process is as follows:

[0023] The catalyst solution is added to the reactor from the medicament inlet (8) and the medicament inlet pipeline (4). The gas inlet (17) and the aeration device (3) are opened. The oxidation regeneration of the catalyst by ozone is started in the catalytic reaction inner cylinder. The catalyst (sediment) and the solution generated after the oxidation regeneration are introduced into the oxidation reaction outer cylinder through the three-phase separator (2). The remaining ozone is discharged from the gas outlet (18) through the three-phase separator (2).

[0024] The water inlet I (7) and the water inlet II (9) are opened, and the wastewater enters the oxidation reaction outer cylinder from the water inlet pipeline I (5) and the water inlet pipeline II (6). The bottom outlet (10) and the circulation inlets I (11), II (12), III (13), IV (14), V (15) and VI (16) are opened, and the catalyst (precipitate) and the solution in the oxidation reaction outer cylinder are internally circulated and reacted in the outer cylinder through the reflux pipeline (22).

[0025] During operation, the catalyst solution flow and the ozone flow are adjusted according to the changes of the ORP and the pH.

[0026] During operation, the supernatant in the oxidation reaction outer cylinder is discharged from the reactor water outlets I (19) and II (20).

[0027] After operation, the precipitate at the bottom of the reactor is discharged from the bottom outlet (10) and the precipitate outlet (21).

[0028] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A catalytic oxidation integrated reactor characterized by, The reactor comprises an inner-outer separation cylinder (1), a three-phase separator (2), an aeration device (3), and water inlet I (7), medicament inlet (8), water inlet II (9), bottom outlet (10), circulation inlet I (11), circulation inlet II (12), circulation inlet III (13), circulation inlet IV (14), circulation inlet V (15), circulation inlet VI (16), gas inlet (17), gas outlet (18), water outlet I (19), water outlet II (20), sediment outlet (21), and medicament inlet pipeline (4), water inlet pipeline I (5), water inlet pipeline II (6), and backflow pipeline (22). The inner-outer separation cylinder (1) and the three-phase separator (2) divide the reactor into three regions, namely, a catalytic reaction inner cylinder, an oxidation reaction outer cylinder, and a solid-liquid-gas separation zone.

2. The catalytic oxidation integrated reactor according to claim 1, characterized in that, The height of the inner-outer separation cylinder (1) from the bottom of the reactor is 1 / 5-1 / 3 of the total height of the reactor. The inner-outer separation cylinder (1) comprises a cylindrical region and a conical expansion region. The height-diameter ratio of the cylindrical region is 3:1-6:

1. The included angle α between the cylindrical region and the conical expansion region is 110°-160°.

3. The catalytic oxidation integrated reactor according to claim 1, characterized in that, The three-phase separator (2) is located at the top of the reactor. The three-phase separator (2) comprises a gas discharge pipe and a conical expansion region. The height-diameter ratio of the gas discharge pipe is 5:1-10:

1. The included angle β between the gas discharge pipe and the conical expansion region is 100°-150°. The gas discharge pipe is connected with the gas outlet (18).

4. A catalytic oxidation integrated reactor according to claim 1, 2 or 3, characterised in that, The maximum diameter of the conical expansion region of the inner-outer separation cylinder (1) is 1.2-1.5 times the diameter of the cylindrical region of the inner-outer separation cylinder (1). The maximum diameter of the conical expansion region of the three-phase separator (2) is 1.1-1.5 times the diameter of the cylindrical region of the inner-outer separation cylinder (1).

5. The catalytic oxidation integrated reactor according to claim 1, wherein The diameter of the aeration disc of the aeration device (3) is 0.8-1.0 times the diameter of the cylindrical region of the inner-outer separation cylinder (1). The aeration disc is located in the conical expansion region of the inner-outer separation cylinder (1). The aeration device (3) is connected with the gas inlet (17).

6. The catalytic oxidation integrated reactor according to claim 1, wherein The bottom outlet (10) is connected with the circulation inlets I (11), II (12), III (13), and IV (14), V (15), and VI (16) through the backflow pipeline (22). The bottom outlet (10) is connected with the sediment outlet (21).

7. The catalytic oxidation integrated reactor according to claim 1, wherein The water inlet I (7) is connected with the water inlet pipeline I (5). The water inlet II (9) is connected with the water inlet pipeline II (6). The distance from the water inlet pipeline I (5) and the water inlet pipeline II (6) to the bottom of the reactor is 1 / 5-1 / 8 of the height of the reactor.

8. The catalytic oxidation integrated reactor according to claim 1, characterized in that, The medicament inlet (8) is connected with the medicament inlet pipeline (4). The distance from the medicament inlet pipeline (4) to the bottom of the reactor is 1 / 5-1 / 3 of the total height of the reactor.

9. The catalytic oxidation integrated reactor according to claim 1, wherein The water outlet I (19) and the water outlet II (20) are located on the side of the reactor. The distance from the water outlet I (19) and the water outlet II (20) to the top of the reactor is 1 / 8-1 / 20 of the height of the reactor.

10. The catalytic oxidation integrated reactor according to claim 1, characterized in that, The reactor is in a closed form. The bottom of the reactor can be flat or conical.

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