Methanol purifier
By designing a methanol purifier for MTBE device, the combined structure of the cylinder and the purifier is used to solve the problem of catalyst deactivation caused by impurities in methanol, and effective purification of methanol and reduction of production costs are achieved.
Patent Information
- Application Number
- CN202421226217.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the MTBE device, supplementing methanol is prone to carry impurities, resulting in frequent catalyst deactivation, increasing production costs and economic losses.
A methanol purifier is designed, including a cylinder and a purifier, and the purifier is sprayed through the feed pipe to filter layer by layer. The purified methanol is discharged through the discharge pipe to avoid catalyst deactivation.
Effectively purify impurities in methanol, avoid frequent catalyst deactivation, reduce production costs, and reduce economic losses.
Smart Images
Figure CN222428024U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chemical industry, in particular to a methanol purifier. Background Art
[0002] In the methyl tert-butyl ether (MTBE) unit, the supplementary methanol entering the catalytic distillation tower is prone to carry impurities, which can deactivate the catalyst in the bed of the catalytic distillation tower, thus requiring frequent catalyst replacement. However, frequent catalyst replacement increases costs, causes economic losses, and affects normal production. Summary of the invention
[0003] In order to overcome the disadvantage that the supplementary methanol entering the catalytic distillation tower of the existing MTBE device is prone to carry impurities, the utility model provides a methanol purifier, which can purify the impurities carried in the supplementary methanol, avoid frequent deactivation of the catalyst in the catalytic distillation tower, and reduce production costs.
[0004] The technical solution of the utility model is: a methanol purifier, comprising a cylinder, a purifier is arranged inside the cylinder, a feed pipe is connected to the upper side wall of the cylinder, a discharge pipe is connected to the lower part of the cylinder, and an anti-vortex device is arranged at the corresponding discharge pipe inside the cylinder; a skirt upper cylinder is fixed at the bottom of the cylinder, the discharge pipe passes through the side wall of the skirt upper cylinder, and the skirt is fixed at the bottom of the skirt upper cylinder.
[0005] Furthermore, the feed pipe is arranged above the purifier in the cylinder in a horizontal direction after passing through the side wall of the cylinder, and a plurality of discharge ports are opened on the side wall of the feed pipe.
[0006] Furthermore, a pressure gauge port and a vent port are provided on the top of the cylinder, a safety valve is provided on the upper side wall of the cylinder, and a manhole is provided on the bottom side wall.
[0007] Furthermore, a thermocouple for heating is provided on the side wall of the cylinder.
[0008] Furthermore, a purifier support frame is provided at the inner bottom of the cylinder, and the purifier is placed on the purifier support frame.
[0009] Furthermore, an inspection port is provided on the side wall of the skirt, a ladder is fixed on the outside of the skirt, and the position of the ladder in the vertical direction corresponds to the manhole.
[0010] Furthermore, an upper head and a lower head are respectively provided at both ends of the cylinder, the cylinder and the upper head are connected via a flange, and the lower head is welded to the cylinder.
[0011] Furthermore, a heat-insulating support ring is provided on the outer side of the upper portion of the cylinder.
[0012] The utility model has the following beneficial effects: due to the adoption of the above scheme, methanol enters from the feed pipe, is sprayed on the top of the purifier through the discharge port on the feed pipe, and is filtered layer by layer by the purifier. The purified methanol is discharged from the discharge pipe at the bottom and enters the subsequent process. The purifier can purify impurities carried in methanol, replace metal cations therein, avoid frequent deactivation of catalysts in the catalytic distillation tower, reduce production costs, and reduce economic losses caused by frequent shutdowns. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] In the figure, 1-base ring, 2-inspection port, 3-discharge pipe, 4-safety valve, 5-skirt, 6-ladder, 7-vortex preventer, 8-skirt upper cylinder, 9-purifier support frame, 10-lower head, 11-flange, 12-cylinder, 13-thermocouple, 14-feed pipe, 15-manhole, 16-upper head, 17-insulation support ring, 18-pressure gauge port, 19-vent. DETAILED DESCRIPTION
[0015] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by "up", "down", "left", "right", "inside", "outside", "top" and "bottom" are all based on the directions or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0017] Depend on Figure 1As shown, a methanol purifier includes a cylinder 12, a feed pipe 14 is connected to the upper side wall of the cylinder 12, a discharge pipe 3 is connected to the lower part of the cylinder 12, a purifier is arranged inside the cylinder 12, a purifier support frame 9 is arranged at the inner bottom of the cylinder 12, both sides of the purifier support frame 9 are fixed to the side wall of the cylinder, and the purifier is stacked on the purifier support frame 9. There is a space between the bottom of the purifier support frame 9 and the bottom of the cylinder, and a vortex preventer 7 is arranged in this space, and the vortex preventer 7 is located at the opening of the discharge pipe 3. The feed pipe 14 passes through the side wall of the cylinder 12 and is arranged above the purifier in the cylinder in the horizontal direction, and a plurality of discharge ports are opened on the side wall of the feed pipe 14. After the methanol solution enters the cylinder 12 through the feed pipe 14, it is sprayed out from the discharge port and evenly sprayed on the purifier, and the purifier purifies the methanol.
[0018] An upper head 16 and a lower head 10 are provided at both ends of the cylinder 12, respectively. The cylinder 12 and the upper head 16 are connected by a flange 11, and the lower head 10 is welded to the cylinder 12. A pressure gauge port 18 and a vent port 19 are provided on the upper head 16 at the top of the cylinder 12. A safety valve 4 is provided on the upper side wall of the cylinder 12, and a pressure gauge is connected to the pressure gauge port 18. When the pressure in the cylinder is too high, the pressure is released through the safety valve 4. The discharge pipe 3 is connected to the lower head 10. A manhole 15 is provided on the side wall of the cylinder 12, through which one can enter the cylinder to inspect or clean the inside. A thermocouple 13 is provided on the side wall of the cylinder 12, through which the material in the cylinder can be heated. A thermal insulation support ring 17 is provided on the outer side of the upper part of the cylinder 12, and the cylinder is reinforced by the thermal insulation support ring 17 to ensure its stability.
[0019] The bottom of the cylinder 12 is fixed with the skirt upper cylinder 8, one end of the discharge pipe 3 is connected to the bottom of the cylinder, and the other end passes through the side wall of the skirt upper cylinder 8 to connect to the subsequent process. The skirt 5 is fixed to the bottom of the skirt upper cylinder 8, and a base ring 1 is fixed to the bottom of the skirt 5. The purifier is fixed as a whole through the base ring 1, and the base ring 1 is provided with a hoisting hole, through which the purifier can be hoisted. An inspection port 2 is provided on the side wall of the skirt 5, and the inside of the skirt can be accessed through the inspection port 2 to inspect the bottom of the cylinder 12. A ladder 6 is fixed to the outside of the skirt 5, and the vertical position of the ladder 6 corresponds to the manhole 15, and the ladder 6 can be used to climb to the manhole 15. In order to enter the cylinder more conveniently, the door of the manhole 15 should be opened upward.
[0020] When the methanol purifier is working, methanol enters from the feed pipe 14, is sprayed on the top of the purifier through the discharge port on the feed pipe 14, and is filtered layer by layer by the purifier. The purified methanol is discharged from the discharge pipe 13 at the bottom and enters the subsequent process. The purifier can purify impurities carried in methanol, replace metal cations therein, and avoid frequent deactivation of catalysts in the catalytic distillation tower.
[0021] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A methanol purifier, comprising a cylinder (12), characterized in that: A purifier is provided inside the cylinder (12); a feed pipe (14) is connected to the upper side wall of the cylinder (12); a discharge pipe (3) is connected to the lower part of the cylinder (12); and a vortex preventer (7) is provided inside the cylinder (12) at a position corresponding to the discharge pipe (3); a skirt seat upper cylinder (8) is fixed at the bottom of the cylinder (12); the discharge pipe (3) passes through the side wall of the skirt seat upper cylinder (8); and a skirt seat (5) is fixed at the bottom of the skirt seat upper cylinder (8).
2. The methanol purifier according to claim 1, characterized in that: The feed pipe (14) passes through the side wall of the cylinder (12) and is arranged above the purifier in the cylinder in a horizontal direction, and a plurality of discharge ports are formed on the side wall of the feed pipe (14).
3. The methanol purifier according to claim 2, characterized in that: The top of the cylinder (12) is provided with a pressure gauge port (18) and a vent port (19), the upper side wall of the cylinder (12) is provided with a safety valve (4), and the bottom side wall is provided with a manhole (15).
4. The methanol purifier according to claim 3, characterized in that: A thermocouple (13) for heating is provided on the side wall of the cylinder (12).
5. The methanol purifier according to claim 4, characterized in that: A purifier support frame (9) is provided at the bottom of the cylinder (12), and the purifier is placed on the purifier support frame (9).
6. The methanol purifier according to claim 5, characterized in that: An inspection opening (2) is provided on the side wall of the skirt seat (5), and a ladder (6) is fixed outside the skirt seat (5), and the position of the ladder (6) in the vertical direction corresponds to the manhole (15).
7. The methanol purifier according to claim 6, characterized in that: An upper head (16) and a lower head (10) are respectively provided at both ends of the cylinder (12); the cylinder (12) and the upper head (16) are connected via a flange (11); and the lower head (10) is welded to the cylinder (12).
8. The methanol purifier according to claim 7, characterized in that: A heat-insulating support ring (17) is provided on the outer side of the upper portion of the cylinder (12).