Alcohol-ammonia co-production methanol synthesis gas component adjusting device
Through the combination of the methanol synthesis gas component regulation device, purification chamber and liquid change tube, the problems of catalyst poisoning and insufficient absorption of copper sulfate solution are solved, and more efficient removal of hydrogen sulfide and sulfur oxides is achieved to ensure that The efficiency of methanol production and catalyst activity are achieved.
Patent Information
- Application Number
- CN202422835194.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-11-20
AI Technical Summary
During the methanol synthesis process of alcohol-ammonia, the catalyst failed due to contamination of hydrogen sulfide and sulfur oxides, and the removal effect of copper sulfate solution is difficult to determine, which affects methanol production efficiency.
A regulating device for the methanol synthesis gas composition is designed, including a purification chamber, a limiting plate and a liquid change tube. The hydrogen sulfide in carbon dioxide is removed through the purification chamber, and the limiting plate fixes the water absorption sponge and a fixing frame, and the liquid change The pipe is used for sulfur oxide absorption, gas is transported through the pipe, the copper sulfate solution status is observed in the window, and the electronically controlled valve controls on and off.
The detection of whether the copper sulfate solution fails, the absorption efficiency of the copper sulfate solution to sulfur oxides is improved, the activity of the catalyst is ensured, and the purity of carbon dioxide is improved.
Smart Images
Figure CN222219133U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to alcohol-ammonia co-production, and particularly relates to a methanol synthesis gas component regulating device for alcohol-ammonia co-production. Background Art
[0002] Alcohol-ammonia co-production of methanol is a chemical production process that combines the production processes of synthetic methanol and synthetic ammonia to achieve efficient utilization of raw materials and energy. This co-production process can reduce production costs, reduce energy consumption, and reduce environmental pollution. In the field of coal chemical industry, alcohol-ammonia co-production technology has become an important technical component in the production of synthetic ammonia, which helps to increase the production capacity of methanol and synthetic ammonia and reduce carbon dioxide emissions. During operation, a small amount of hydrogen sulfide impurities will remain in the carbon dioxide produced, which will affect the production of methanol in the subsequent production process. However, it still has the following disadvantages in actual use:
[0003] In the process of methanol production, catalysts are required. In the process of catalyst production, carbon dioxide in the methanol production equipment is being transported. Since it is doped with pollutants such as hydrogen sulfide, it will cause catalyst poisoning and failure, affecting the synthesis efficiency of methanol in the co-production of alcohol and ammonia. Therefore, it is necessary to remove hydrogen sulfide gas from carbon dioxide through copper sulfate solution. However, in the process of removal, the removal effect of copper sulfate solution needs to be determined through a variety of detection instruments, and it is not convenient to determine whether the copper sulfate solution is invalid.
[0004] In the methanol synthesis gas produced by the co-production of alcohol and ammonia, the participation of air during the transportation process will cause the gas to be doped with sulfur oxides such as sulfur dioxide. When it is transported to the copper sulfate solution, it is easy to be insufficiently absorbed. Trace impurities will enter the methanol production equipment and affect the catalyst activity of methanol production. Utility Model Content
[0005] The utility model aims to provide a component regulating device for methanol synthesis gas produced by alcohol-ammonia co-production. By arranging a purification chamber, a limit plate and a liquid exchange pipe, the utility model solves the problems that it is not convenient to determine whether the copper sulfate solution is invalid in the removal of hydrogen sulfide in carbon dioxide of the methanol synthesis gas produced by alcohol-ammonia co-production, and the copper sulfate solution is easy to absorb sulfur oxides insufficiently, which affects the activity of the methanol production catalyst.
[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0007] The utility model discloses a component regulating device for methanol synthesis gas produced by co-production of alcohol and ammonia, comprising a purification chamber, a limiting plate and a liquid exchange pipe, wherein a baffle is fixed at the middle of the inner wall of the purification chamber, a gap is left between the top of the baffle and the inner top of the purification chamber, a limiting plate is arranged at the top of the purification chamber on one side of the baffle, a fixed frame is fixed at the bottom center of the limiting plate, the fixed frame is movably connected in the purification chamber, a liquid exchange pipe is fixedly connected at the lower front part of the purification chamber, the liquid exchange pipe is arranged at the side of the baffle away from the fixed frame, when working, sulfur element in carbon dioxide gas passing through the purification chamber is removed, the fixed frame is fixed at its bottom by the limiting plate, a water-absorbing sponge is fixed in it by the fixed frame, and sulfur oxide in carbon dioxide gas passing through the purification chamber is absorbed by the liquid exchange pipe.
[0008] Furthermore, a through pipe is fixed through the top of the purification chamber, and the through pipe is arranged on the side of the baffle close to the liquid exchange pipe. A window is vertically fixed through the inside of the purification chamber behind the through pipe, and the purification chamber transports carbon dioxide into the copper sulfate solution through the through pipe.
[0009] Furthermore, a socket is provided through the top of the purification chamber corresponding to the position of the fixing frame, the fixing frame is inserted into the socket, and the purification chamber is movably connected to the fixing frame through the socket.
[0010] Furthermore, limiting frames are fixed on the inner walls of the purification chamber on both sides of the fixed frame, the fixed frame is arranged between the two limiting frames, and an exhaust pipe is fixedly connected to the upper part of one end of the purification chamber away from the through pipe, and the position of the fixed frame in the purification chamber is limited by the two limiting frames.
[0011] Furthermore, a lifting handle is fixed at the top center of the limiting plate, a water-absorbing sponge is fixed through the fixing frame, tightening screws are inserted through the four corners of the limiting plate, the tightening screws at the bottom of the limiting plate are threadedly connected to the top of the purification chamber, and the limiting plate is pulled by the lifting handle to drive the fixing frame to move.
[0012] Furthermore, one end of the liquid exchange pipe away from the purification chamber is fixedly connected to an electric control valve, and one end of the electric control valve away from the liquid exchange pipe is fixedly connected to a three-way pipe, and the liquid exchange pipe is controlled to be on and off by the electric control valve.
[0013] The utility model has the following beneficial effects:
[0014] The utility model solves the problem of inconvenient determination of whether copper sulfate solution is invalid in the process of removing hydrogen sulfide in carbon dioxide of methanol synthesis gas produced by alcohol and ammonia by arranging a purification chamber. Carbon dioxide gas is transported into the purification chamber through a through pipe and enters into the copper sulfate solution. After being washed, hydrogen sulfide gas is eluted. The state of the copper sulfate solution is observed through a window. If the copper sulfate solution becomes more turbid and the blue color becomes lighter, the removal effect of the copper sulfate solution can be determined. It is more convenient to determine whether the copper sulfate solution is invalid in the process of removing hydrogen sulfide in carbon dioxide of methanol synthesis gas produced by alcohol and ammonia.
[0015] The utility model solves the problem that the copper sulfate solution in the removal of hydrogen sulfide in carbon dioxide of methanol synthesis gas in alcohol-ammonia co-production is not sufficiently absorbing sulfur oxides, which affects the activity of methanol production catalyst by arranging a purification chamber, a limit plate and a liquid exchange pipe. The utility model holds the lifting handle, and after the water-absorbing sponge is fully absorbed with water, 50 milliliters of water is first injected into the socket, and then the fixed frame is inserted into the socket at the top of the purification chamber until the bottom of the limit plate is pressed against the top of the purification chamber. Then, the tightening screw is inserted into the limit plate, and then screwed into the top of the purification chamber to limit the position of the fixed frame. After the carbon dioxide gas from which the hydrogen sulfide gas is removed is transported to the fixed frame, the sulfur oxides are further absorbed by the water in the water-absorbing sponge, so as to prevent the sulfur element from poisoning the catalyst in the alcohol-ammonia co-production, and make the carbon dioxide have a higher purity when used. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 It is a stereoscopic diagram of the assembly structure of a component regulating device for the co-production of methanol and alcohol and ammonia;
[0018] Figure 2 It is a partial cross-sectional structural stereogram of the clean room;
[0019] Figure 3 This is a three-dimensional diagram of the clean room structure;
[0020] Figure 4 It is a three-dimensional diagram of the limiting plate structure;
[0021] Figure 5 It is a three-dimensional diagram of the liquid exchange tube structure.
[0022] Reference numerals:
[0023] 1. Purification chamber; 101. Baffle; 102. Socket; 103. Limiting frame; 104. Exhaust pipe; 105. Window; 106. Through pipe; 2. Limiting plate; 201. Tightening screws; 202. Lifting handle; 203. Fixing frame; 204. Absorbent sponge; 3. Liquid exchange tube; 301. Electric control valve; 302. Three-way pipe. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1
[0025] See also Figure 1-5 The utility model is a component regulating device for methanol synthesis gas produced by alcohol-ammonia co-production, comprising a purification chamber 1, a limiting plate 2 and a liquid exchange pipe 3. A baffle 101 is fixed at the middle of the inner wall of the purification chamber 1, and the purification chamber 1 absorbs the sulfur component in the carbon dioxide gas passing therethrough. A gap is left between the top of the baffle 101 and the inner top of the purification chamber 1, so that the carbon dioxide gas entering the purification chamber 1 can be transported to the purification chamber 1 below the limiting plate 2 after removing hydrogen sulfide. A limiting plate 2 is arranged on the top of the purification chamber 1 on one side of the baffle 101, and the position of a fixed frame 203 in the purification chamber 1 is determined by the limiting plate 2. A fixed frame 203 is fixed at the bottom center of the limiting plate 2, and the fixed frame 203 is movably connected in the purification chamber 1 through the fixing frame 203, and a water-absorbing sponge 204 is fixed therein through the fixing frame 203. A liquid exchange pipe 3 is fixedly connected to the lower front side of the purification chamber 1, and the liquid exchange pipe 3 is arranged on the side of the baffle 101 away from the fixing frame 203, and the copper sulfate solution in the purification chamber 1 is replaced by the liquid exchange pipe 3.
[0026] Specifically, a through-tube 106 is fixed through the top of the purification chamber 1, and the top of the through-tube 106 is connected to the pipeline for inputting carbon dioxide gas. The through-tube 106 is arranged on the side of the baffle 101 close to the liquid exchange tube 3, and a window 105 is fixed vertically through the inside of the purification chamber 1 behind the through-tube 106. The carbon dioxide gas is transported into the purification chamber 1 through the through-tube 106, and the hydrogen sulfide is absorbed by the copper sulfate solution. The state of the copper sulfate solution in the purification chamber 1 is displayed through the window 105.
[0027] Furthermore, a socket 102 is provided through the top of the purification chamber 1 corresponding to the position of the fixing frame 203 , and the fixing frame 203 is inserted into the socket 102 . The purification chamber 1 is movably connected to the fixing frame 203 via the socket 102 .
[0028] Furthermore, one end of the liquid exchange pipe 3 away from the purification chamber 1 is fixedly connected to an electric-controlled valve 301, and one end of the electric-controlled valve 301 away from the liquid exchange pipe 3 is fixedly connected to a three-way pipe 302. The two ends of the three-way pipe 302 adjacent to the electric-controlled valve 301 are respectively connected to equipment for inputting and processing copper sulfate solution. The liquid exchange pipe 3 controls the on-off of the three-way pipe 302 through the electric-controlled valve 301. When working, the equipment for conveying copper sulfate solution and the electric-controlled valve 301 are first opened to allow the copper sulfate solution to be input into the purification chamber 1, observed through the window 105, and the liquid level of the copper sulfate solution is allowed to be located below the top of the baffle 101.
[0029] The operation process of this embodiment is as follows: when working, first, carbon dioxide gas is transported into the purification chamber 1 through the through pipe 106 and enters the copper sulfate solution. After being washed, the hydrogen sulfide gas is eluted, and the state of the copper sulfate solution is observed through the window 105. If the copper sulfate solution becomes relatively turbid and the blue color becomes lighter, first open the equipment for processing the copper sulfate solution, so that the copper sulfate solution in the purification chamber 1 is transported to the electric control valve 301, and then transported to the three-way pipe 302 through the electric control valve 301, and then transported to the copper sulfate solution processing equipment through the three-way pipe 302. After the copper sulfate solution is discharged, immediately open the equipment for transporting the copper sulfate solution and the electric control valve 301, so that the copper sulfate solution is input into the purification chamber 1, observe through the window 105, and let the liquid level of the copper sulfate solution be located below the top of the baffle 101, and complete the replacement of the copper sulfate solution. Specific embodiment 2
[0030] See also Figure 1-4 On the basis of the specific embodiment 1, the limiting frames 103 are fixed on the inner walls of the purification chamber 1 on both sides of the fixed frame 203, the fixed frame 203 is arranged between the two limiting frames 103, and the upper part of one end of the purification chamber 1 away from the through pipe 106 is fixedly connected with the exhaust pipe 104. The fixed frame 203 is limited by the limiting frame 103, and the purification chamber 1 is discharged to the next processing equipment through the exhaust pipe 104 after two rounds of purification.
[0031] Specifically, a lifting handle 202 is fixed at the top center of the limiting plate 2, a water-absorbing sponge 204 is fixed through the fixing frame 203, and tightening screws 201 are inserted through the four corners of the limiting plate 2. The tightening screws 201 at the bottom of the limiting plate 2 are threadedly connected to the top of the purification chamber 1. After the tightening screws 201 are unscrewed, the lifting handle 202 is pulled to drive the fixing frame 203 to pull out the water-absorbing sponge 204 in the fixing frame 203.
[0032] The operation process of this embodiment is: when working, first hold the lifting handle 202, and after the absorbent sponge 204 is fully absorbed by water, first inject fifty milliliters of water into the socket 102, and then insert the fixing frame 203 into the socket 102 at the top of the purification chamber 1, until the bottom of the limiting plate 2 is pressed against the top of the purification chamber 1, then insert the tightening screw 201 into the limiting plate 2, and then screw it into the top of the purification chamber 1 to limit the position of the fixing frame 203. After the carbon dioxide gas from which the hydrogen sulfide gas is removed is transported to the fixing frame 203, the sulfur oxides are further absorbed by the water in the absorbent sponge 204 to prevent the sulfur element from poisoning the catalyst in the co-production of alcohol and ammonia.
[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for adjusting the components of methanol synthesis gas produced by the co-production of alcohol and ammonia, comprising a purification chamber (1), a limit plate (2) and a liquid exchange pipe (3), characterized in that: A baffle (101) is fixed at the middle of the inner wall of the purification chamber (1), a gap is left between the top of the baffle (101) and the inner top of the purification chamber (1), a limit plate (2) is provided at the top of the purification chamber (1) on one side of the baffle (101), a fixed frame (203) is fixed at the bottom center of the limit plate (2), the fixed frame (203) is movably connected through the purification chamber (1), a liquid exchange pipe (3) is fixedly connected at the lower front side of the purification chamber (1), and the liquid exchange pipe (3) is provided on the side of the baffle (101) away from the fixed frame (203).
2. The device for adjusting the components of the synthesis gas from the co-production of methanol from alcohol and ammonia according to claim 1, characterized in that: A through-tube (106) is fixedly passed through the top of the purification chamber (1), and the through-tube (106) is arranged on a side of the baffle (101) close to the liquid exchange tube (3). A viewing window (105) is fixedly passed vertically through the interior of the purification chamber (1) behind the through-tube (106).
3. The device for adjusting the components of the methanol synthesis gas produced by the co-production of alcohol and ammonia according to claim 2, characterized in that: A socket (102) is provided through the top of the purification chamber (1) at a position corresponding to the position of the fixing frame (203), and the fixing frame (203) is inserted into the socket (102).
4. The device for adjusting the components of the synthesis gas from the co-production of methanol from alcohol and ammonia according to claim 3, characterized in that: Limiting frames (103) are fixed on the inner walls of the purification chamber (1) on both sides of the fixing frame (203), the fixing frame (203) is arranged between the two limiting frames (103), and the upper part of one end of the purification chamber (1) away from the through pipe (106) is fixedly connected to an exhaust pipe (104).
5. The device for adjusting the components of the methanol synthesis gas produced by the co-production of alcohol and ammonia according to claim 1, characterized in that: A lifting handle (202) is fixed at the top center of the limiting plate (2), a water-absorbing sponge (204) is fixed through the fixing frame (203), and tightening screws (201) are inserted through the four corners of the limiting plate (2), and the tightening screws (201) at the bottom of the limiting plate (2) are threadedly connected to the top of the purification chamber (1).
6. The device for adjusting the components of the synthesis gas from the co-production of methanol from alcohol and ammonia according to claim 1, characterized in that: One end of the liquid exchange pipe (3) away from the purification chamber (1) is fixedly connected to an electric control valve (301), and one end of the electric control valve (301) away from the liquid exchange pipe (3) is fixedly connected to a three-way pipe (302).