A methanol reactor

Abstract

The application discloses a methanol reactor and relates to the technical field of methanol production.The methanol reactor comprises an outer shell, a feed inlet is fixedly installed at the top of the outer surface of the outer shell, a premixing device is fixedly installed at the bottom of the feed inlet and penetrates through the outer shell, a flow divider is fixedly connected to the end of the premixing device away from the feed inlet, a heat exchange pipe is fixedly connected to the bottom of the outer shell, the top of the heat exchange pipe penetrates through the bottom and the top of the outer shell and extends to the top of the outer shell, a heat exchange feed pipe is fixedly connected to the bottom of the outer surface of the heat exchange pipe, a heat exchange discharge pipe is fixedly connected to the top of the outer surface of the heat exchange pipe, and an object placing plate is fixedly connected to the inner surface of the outer shell.The methanol reactor has the advantages that hydrogen and carbon monoxide are sent into the reactor through the feed inlet, the gas is mixed through the premixing device and the flow divider, the mixed gas flows to the object placing plate, methanol is generated through reaction under the action of a catalyst, and the methanol flows out of the discharge port.

Description

Technical Field

[0001] This invention relates to the field of methanol production technology, specifically to a methanol reactor. Background Technology

[0002] Methanol is composed of a methyl group and a hydroxyl group. It is an alcohol and has the chemical properties of alcohols. Industrially, methanol is almost always synthesized by pressurized catalytic hydrogenation of carbon monoxide and carbon dioxide. A typical process includes feed gas production, feed gas purification, methanol synthesis, and crude methanol distillation. Natural gas, heavy oil, coal and its processed products, and acetylene tail gas can all be used as feedstocks for methanol synthesis gas production. When solid fuels are used as feedstocks, water gas can be produced by intermittent or continuous gasification.

[0003] In the methanol production process, carbon monoxide, carbon dioxide, and hydrogen react to form methanol under the action of a copper-based catalyst. In existing methanol reactors, the catalyst is usually piled up, which prevents all the catalyst from fully contacting the feed gas, resulting in low catalyst utilization. After the gas supply to the reactor is stopped, there is a risk of backflow of gas inside the reactor. The uniformity of the feed gas mixing is insufficient, resulting in incomplete gas reaction. To solve the above problems, we propose a methanol reactor. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a methanol reactor comprising a shell, a discharge port fixedly connected to the bottom of the outer surface of the shell, a fixed plate fixedly connected to the outer surface of the shell, a base fixedly connected to the bottom of the fixed plate, a feed port fixedly installed at the top of the outer surface of the shell, a premixing device fixedly installed at the bottom of the feed port penetrating the shell, a distributor fixedly connected to the end of the premixing device away from the feed port, a heat exchange tube fixedly connected to the bottom of the shell, the top of the heat exchange tube penetrating the bottom and top of the shell and extending to the top of the shell, a heat exchange feed pipe fixedly connected to the bottom of the outer surface of the heat exchange tube, a heat exchange discharge pipe fixedly connected to the top of the outer surface of the heat exchange tube, and a shelf fixedly connected to the inner surface of the shell. This device enables the generation of methanol from hydrogen and carbon monoxide inside the reactor.

[0005] Preferably, the feed inlet includes a first feed pipe, the outer surface of which is fixedly connected to the outer surface of the housing, and a second feed pipe is fixedly connected to the outer surface of the first feed pipe. An air inlet is provided at the bottom of the outer surface of the second feed pipe, and a blocking device is fixedly installed at the bottom of the first feed pipe. Hydrogen and carbon monoxide are fed into the device through the feed inlet for reaction.

[0006] Preferably, the blocking device includes a horizontal column, the outer surface of which is fixedly connected to the inner surface of the first feed pipe, a circular plate fixedly connected to the bottom of the horizontal column, a ventilation hole being provided at the top edge of the circular plate, a cylindrical column fixedly connected to the bottom of the circular plate, and a stop block being slidably connected to the inner surface of the cylindrical column. The blocking device can prevent the gas inside the shell from flowing back after the gas supply stops.

[0007] Preferably, the baffle includes a sliding column, the outer surface of which is slidably connected to the bottom of the cylindrical inner cavity. A rebound spring is sleeved on the outer surface of the sliding column. A straight column is fixedly connected to the top of the sliding column, and a baffle is fixedly connected to the top of the straight column. When the gas flows back, the baffle blocks the horizontal column and blocks the gas inside the outer shell.

[0008] Preferably, the premixing device includes a mixing tank, the top of which is fixedly connected to the bottom of the inlet. The top of the mixing tank has an inlet hole, and the bottom of the inlet hole is fixedly connected to an inclined tube. The outer surface of the inclined tube has an outlet hole, and the bottom of the mixing tank is fixedly connected to a baffle plate. The premixing device mixes the gas, making the gas reaction faster and more complete.

[0009] Preferably, the distributor includes a connecting pipe, the top of which is fixedly connected to the bottom of the premixing device, and a fixed pipe fixedly connected to the bottom of the connecting pipe. A cone is fixedly connected to the inner surface of the fixed pipe, and a guide plate is fixedly connected to the outer surface of the cone. The outer surface of the guide plate is fixedly connected to the inner surface of the fixed pipe, and an outlet is provided on the outer surface of the fixed pipe. The distributor disperses the gas inside the shell, allowing for more thorough contact with the catalyst.

[0010] Preferably, the heat exchange tube includes a straight tube, the outer surface of which is fixedly connected to the top of the outer shell, and a rotating rod is fixedly connected to the top of the inner cavity of the straight tube. A cleaning roller is rotatably connected to the outer surface of the rotating rod. The structure of the heat exchange tube can clean the scale inside the heat exchange tube, preventing scale buildup and affecting the operation of the heat exchange tube.

[0011] Preferably, the placement plate includes a protective shell, the outer surface of which is fixedly connected to the inner surface of the outer shell. The top of the protective shell has an air inlet, the bottom of which has an air outlet, and the inner surface of the protective shell has a catalyst layer fixedly connected to it. Multiple placement plates are distributed from top to bottom inside the outer shell, so that the mixed gas and the catalyst can come into more complete contact and react more fully.

[0012] This invention provides a methanol reactor. It has the following beneficial effects:

[0013] 1. In this methanol reactor, gas backflow is prevented through the feed inlet. When the gas enters the feed inlet, it pushes aside the baffle and passes through the gap between the baffle and the cross column, and then flows into the shell through the ventilation hole. When the gas backflows, the baffle blocks the cross column, and the gas flow presses down on the baffle, making the baffle stick tightly to the surface of the cross column. The gas is blocked by the baffle and stops flowing.

[0014] Second, in this methanol reactor, the gas is mixed by a premixing device. The gas flows along the inclined tube to the outlet and flows out from the outlet. After the gas flows out, it is mixed together and then further mixed by a baffle plate. Premixing the gas together allows the gas reaction to be faster and more complete.

[0015] Third, the methanol reactor uses heat exchange tubes for heat exchange. The heat exchange fluid enters the straight tube from the heat exchange feed pipe, which drives the cleaning roller to rotate and clean the inner wall of the straight tube to prevent scale buildup. At the same time, the cleaning roller also plays a role in turbulence, slowing down the speed of the heat exchange fluid, so that the heat exchange fluid flows in the heat exchange tube for a longer time, thus exchanging heat inside the reactor.

[0016] Fourth, this methanol reactor, through the use of mounting plates, allows for more thorough contact between the mixed gas and the catalyst. The reaction of hydrogen and carbon monoxide requires the participation of a catalyst. By setting up multiple mounting plates, which are distributed from top to bottom inside the outer shell, the gas can fully contact the catalyst during the flow process, resulting in higher catalyst utilization and more complete gas reaction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a methanol reactor according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the feed inlet portion of the present invention;

[0020] Figure 4 This is a schematic diagram of the blocking device of the present invention;

[0021] Figure 5 This is a schematic diagram of the anatomical structure of the stop block portion of the present invention;

[0022] Figure 6 This is a partial structural diagram of the premixing device of the present invention;

[0023] Figure 7 This is a schematic diagram of the anatomical structure of the distributor of the present invention;

[0024] Figure 8 This is a schematic diagram of the heat exchange tube structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the anatomical structure of the shelf section of the present invention.

[0026] In the diagram: 1. Outer shell; 2. Feed inlet; 21. First feed pipe; 22. Second feed pipe; 23. Air inlet; 24. Baffle device; 241. Horizontal column; 242. Circular plate; 243. Circular cylinder; 244. Ventilation hole; 245. Stop block; 2451. Sliding column; 2452. Rebound spring; 2453. Straight column; 2454. Baffle; 3. Premixing device; 31. Mixing tank; 32. Feed hole; 33. Inclined tube; 34. 1. Discharge port; 35. Baffle plate; 4. Diverter; 41. Connecting pipe; 42. Fixing pipe; 43. Cone; 44. Guide plate; 45. Air outlet; 5. Heat exchange feed pipe; 6. Heat exchange tube; 61. Straight pipe; 62. Rotating rod; 63. Cleaning roller; 7. Heat exchange discharge pipe; 8. Shelf plate; 81. Protective shell; 82. Air inlet; 83. Air outlet; 84. Catalyst layer; 9. Discharge port; 10. Fixing plate; 11. Base. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0028] Example 1

[0029] like Figures 1-5As shown, the present invention provides a technical solution: a methanol reactor, including a shell 1, an outlet 9 fixedly connected to the bottom of the outer surface of the shell 1, a fixing plate 10 fixedly connected to the outer surface of the shell 1, a base 11 fixedly connected to the bottom of the fixing plate 10, an inlet 2 fixedly installed on the top of the outer surface of the shell 1, a premixing device 3 fixedly installed at the bottom of the inlet 2 penetrating the shell 1, a distributor 4 fixedly connected to the end of the premixing device 3 away from the inlet 2, and a heat exchange tube 6 fixedly connected to the bottom of the shell 1, the top of the heat exchange tube 6 penetrating the bottom and top of the shell 1 and extending to... Above the outer shell 1, a heat exchange feed pipe 5 is fixedly connected to the bottom of the outer surface of the heat exchange tube 6, and a heat exchange discharge pipe 7 is fixedly connected to the top of the outer surface of the heat exchange tube 6. A shelf plate 8 is fixedly connected to the inner surface of the outer shell 1. Hydrogen and carbon monoxide are fed into the reactor through the feed port 2. The gas is mixed by the premixing device 3. The mixed gas is dispersed into the inner shell 1 through the distributor 4. The mixed gas flows to the shelf plate 8. Under the action of the catalyst, it reacts to produce methanol. Methanol flows out from the discharge port 9. This device enables hydrogen and carbon monoxide to generate methanol inside the outer shell 1.

[0030] The feed inlet 2 includes a first feed pipe 21, the outer surface of which is fixedly connected to the outer surface of the outer shell 1. A second feed pipe 22 is fixedly connected to the outer surface of the first feed pipe 21. An air inlet 23 is provided at the bottom of the outer surface of the second feed pipe 22. A blocking device 24 is fixedly installed at the bottom of the first feed pipe 21. Hydrogen and carbon monoxide enter the first feed pipe 21 from the inlet of the first feed pipe 21 and the second feed pipe 22, respectively. The gas flows along the first feed pipe 21 to the blocking device 24 and flows into the device through the blocking device 24. Hydrogen and carbon monoxide can be sent into the device for reaction through the feed inlet 2.

[0031] The blocking device 24 includes a horizontal column 241. The outer surface of the horizontal column 241 is fixedly connected to the inner surface of the first feed pipe 21. A circular plate 242 is fixedly connected to the bottom of the horizontal column 241. A ventilation hole 244 is provided at the top edge of the circular plate 242. A cylindrical column 243 is fixedly connected to the bottom of the circular plate 242. A baffle 245 is slidably connected to the inner surface of the cylindrical column 243. When the gas flows inward along the horizontal column 241, it pushes open the baffle 245 and flows from the gap between the baffle 245 and the horizontal column 241 to the circular plate 242. It then flows into the housing 1 through the ventilation hole 244. When the gas flows back, the baffle 245 will block the horizontal column 241. The blocking device 24 can prevent the gas inside the housing 1 from flowing back after the gas supply stops.

[0032] The baffle 245 includes a sliding column 2451, the outer surface of which is slidably connected to the bottom of the inner cavity of the cylinder 243. A spring 2452 is fitted on the outer surface of the sliding column 2451. A straight column 2453 is fixedly connected to the top of the sliding column 2451. A baffle 2454 is fixedly connected to the top of the straight column 2453. When the gas flows along the horizontal column 241 to the baffle 2454, the baffle 2454 is pushed open. The baffle 2454 causes the straight column 2453 and the sliding column 2451 to slide downward. When the gas flows backward, the spring 2452 causes the straight column 2453 and the sliding column 2451 to slide upward. The straight column 2453 causes the baffle 2454 to block the horizontal column 241, preventing the gas from flowing. When the gas flows backward, the baffle 245 can block the gas inside the outer shell 1 and prevent the gas from flowing backward.

[0033] In use, hydrogen and carbon monoxide are fed into the first feed pipe 21 through the inlet of the first feed pipe 21 and the second feed pipe 22. The gas flows along the first feed pipe 21 to the baffle 2454. The baffle 2454 is pushed open, and the baffle 2454 drives the straight column 2453 and the sliding column 2451 to slide downward. The gas flows from the gap between the baffle 245 and the horizontal column 241 to the circular plate 242, and flows into the outer shell 1 through the ventilation hole 244. After the gas supply stops, if the gas flows back, the rebound spring 2452 will drive the baffle 2454 to block the horizontal column 241 and prevent the gas from flowing back.

[0034] Example 2

[0035] like Figures 6-9 As shown, the premixing device 3 includes a mixing tank 31. The top of the mixing tank 31 is fixedly connected to the bottom of the inlet 2. The top of the mixing tank 31 is provided with an inlet hole 32. The bottom of the inlet hole 32 is fixedly connected with an inclined tube 33. The outer surface of the inclined tube 33 is provided with an outlet hole 34. The bottom of the mixing tank 31 is fixedly connected with a baffle plate 35. Gas flows into the inclined tube 33 from the inlet hole 32, flows along the inclined tube 33 to the outlet hole 34, and flows out from the outlet hole 34. The gas is mixed together and then further mixed by the baffle plate 35. After the premixing device 3 mixes the gas, the gas reaction can be faster and more complete.

[0036] The distributor 4 includes a connecting pipe 41, the top of which is fixedly connected to the bottom of the premixing device 3, and a fixed pipe 42 fixedly connected to the bottom of the connecting pipe 41. A cone 43 is fixedly connected to the inner surface of the fixed pipe 42, and a guide plate 44 is fixedly connected to the outer surface of the cone 43. The outer surface of the guide plate 44 is fixedly connected to the inner surface of the fixed pipe 42. An outlet 45 is provided on the outer surface of the fixed pipe 42. Gas flows along the connecting pipe 41 into the interior of the fixed pipe 42, flows along the guide plate 44 to the surrounding area, and then flows through the outlet 45 into the interior of the outer shell 1. The distributor 4 disperses the gas flow into the interior of the outer shell 1, allowing for more thorough contact with the catalyst and facilitating the reaction of the gas under the action of the catalyst.

[0037] The heat exchange tube 6 includes a straight tube 61. The outer surface of the straight tube 61 is fixedly connected to the top of the outer shell 1. A rotating rod 62 is fixedly connected to the top of the inner cavity of the straight tube 61. A cleaning roller 63 is rotatably connected to the outer surface of the rotating rod 62. The heat exchange fluid enters the inside of the straight tube 61 from the heat exchange feed pipe 5, which drives the cleaning roller 63 to rotate and clean the inner wall of the straight tube 61 to prevent scale buildup and affect the operation of the heat exchange tube 6. At the same time, the cleaning roller 63 will play a turbulence role, slowing down the speed of the heat exchange fluid, so that the heat exchange fluid flows in the heat exchange tube 6 for a longer time to exchange heat inside the outer shell 1.

[0038] The storage plate 8 includes a protective shell 81. The outer surface of the protective shell 81 is fixedly connected to the inner surface of the outer shell 1. The top of the protective shell 81 has an air inlet 82, and the bottom of the protective shell 81 has an air outlet 83. The inner surface of the protective shell 81 is fixedly connected to a catalyst layer 84. Gas flows into the interior of the protective shell 81 through the air inlet 82, reacts under the action of the catalyst layer 84, and then flows out from the air outlet 83. Multiple storage plates 8 are distributed from top to bottom inside the outer shell 1, so that the mixed gas and the catalyst can be in more complete contact, the catalyst utilization rate is higher, and the mixed gas reaction is more complete.

[0039] In use, the gas is mixed by the premixing device 3. The gas flows into the inclined tube 33 from the feed hole 32, flows along the inclined tube 33 to the discharge hole 34, and flows out from the discharge hole 34. The gas is mixed together and then turbulent by the baffle 35, which further mixes the gas. The mixed gas flows into the fixed tube 42 along the connecting pipe 41, flows to the surrounding area along the guide plate 44, and then flows into the outer shell 1 through the gas outlet 45. The gas flows downward and flows into the protective shell 81 through the gas inlet 82. It reacts under the action of the catalyst layer 84 and then flows out from the gas outlet 83. The reacted gas flows out from the discharge port 9.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A methanol reactor, comprising a shell (1), wherein a discharge port (9) is fixedly connected to the bottom of the outer surface of the shell (1), a fixing plate (10) is fixedly connected to the outer surface of the shell (1), and a base (11) is fixedly connected to the bottom of the fixing plate (10), characterized in that: The top of the outer shell (1) is fixedly provided with a feeding port (2), the bottom of the feeding port (2) penetrates the outer shell (1) and is fixedly provided with a premixing device (3), one end of the premixing device (3) away from the feeding port (2) is fixedly connected with a flow divider (4), the bottom of the outer shell (1) is fixedly connected with a heat exchange pipe (6), the top of the heat exchange pipe (6) penetrates the bottom and the top of the outer shell (1) and extends to the top of the outer shell (1), the bottom of the outer surface of the heat exchange pipe (6) is fixedly connected with a heat exchange feeding pipe (5), the top of the outer surface of the heat exchange pipe (6) is fixedly connected with a heat exchange discharging pipe (7), and the inner surface of the outer shell (1) is fixedly connected with a storage plate (8).

2. A methanol reactor according to claim 1, characterized in that: The feeding port (2) comprises a first feeding pipe (21), the outer surface of the first feeding pipe (21) is fixedly connected to the outer surface of the outer shell (1), the outer surface of the first feeding pipe (21) is fixedly connected with a second feeding pipe (22), the bottom of the outer surface of the second feeding pipe (22) is provided with an air inlet (23), and the bottom of the first feeding pipe (21) is fixedly provided with a blocking device (24).

3. A methanol reactor according to claim 2, characterized in that: The blocking device (24) comprises a cross column (241), the outer surface of the cross column (241) is fixedly connected to the inner surface of the first feeding pipe (21), the bottom of the cross column (241) is fixedly connected with a circular plate (242), the edge of the top of the circular plate (242) is provided with a ventilation hole (244), the bottom of the circular plate (242) is fixedly connected with a circular column (243), and the inner surface of the circular column (243) is slidingly connected with a stop block (245).

4. A methanol reactor according to claim 3, characterized in that: The stop block (245) comprises a sliding column (2451), the outer surface of the sliding column (2451) is slidingly connected to the bottom of the inner cavity of the circular column (243), the outer surface of the sliding column (2451) is sleeved with a rebound spring (2452), the top of the sliding column (2451) is fixedly connected with a straight column (2453), and the top of the straight column (2453) is fixedly connected with a baffle (2454).

5. A methanol reactor as claimed in claim 1, wherein: The premixing device (3) comprises a mixing tank (31), the top of the mixing tank (31) is fixedly connected to the bottom of the feeding port (2), the top of the mixing tank (31) is provided with a feeding hole (32), the bottom of the feeding hole (32) is fixedly connected with an inclined pipe (33), the outer surface of the inclined pipe (33) is provided with a discharging hole (34), and the bottom of the mixing tank (31) is fixedly connected with a spoiler (35).

6. A methanol reactor according to claim 1, characterized in that: The flow divider (4) comprises a connecting pipe (41), the top of the connecting pipe (41) is fixedly connected to the bottom of the premixing device (3), the bottom of the connecting pipe (41) is fixedly connected with a fixed pipe (42), the inner surface of the fixed pipe (42) is fixedly connected with a circular cone (43), the outer surface of the circular cone (43) is fixedly connected with a flow guide plate (44), the outer surface of the flow guide plate (44) is fixedly connected to the inner surface of the fixed pipe (42), and the outer surface of the fixed pipe (42) is provided with an air outlet (45).

7. A methanol reactor as claimed in claim 1, wherein: The heat exchange pipe (6) comprises a straight pipe (61), an outer surface of the straight pipe (61) is fixedly connected to the top of the shell (1), and the inner cavity of the straight pipe (61) is fixedly connected with a rotating rod (62); and an outer surface of the rotating rod (62) is rotatably connected with a cleaning roller (63).

8. A methanol reactor according to claim 1, characterized in that: The object plate (8) comprises a protective shell (81), an outer surface of the protective shell (81) is fixedly connected to the inner surface of the shell (1), the top of the protective shell (81) is provided with an air inlet hole (82), the bottom of the protective shell (81) is provided with an air outlet hole (83), and the inner surface of the protective shell (81) is fixedly connected with a catalyst layer (84).

Images