Methanol-to-olefin raw material purification device
By designing a methanol-to-olefin raw material purification device and using a multi-stage filtration method of molecular sieve and activated carbon adsorbent combined with nanofiltration membrane, the problem of moisture and organic impurities in methanol raw materials affecting the activity of the catalyst is solved, and efficient purification effect and cost reduction are achieved.
Patent Information
- Application Number
- CN202422669128.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In the existing methanol-to-olefin process, the moisture and organic impurities in the methanol raw materials affect the catalyst activity and reaction efficiency. The existing purification methods are poorly effective and costly, and are complex in operation.
A purifying device for olefin raw material from methanol is designed, and multi-stage filtration is carried out using molecular sieve adsorbent and activated carbon adsorbent, combined with nanofiltration membrane to remove inorganic impurities, and prevent blockage through heating pretreatment and agitating mechanism, improving the purification effect.
Effectively removes moisture and organic impurities from methanol raw materials, improves the activity and reaction efficiency of the catalyst, and reduces operational complexity and cost.
Smart Images
Figure CN223287755U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of methanol to olefins, in particular to a methanol to olefins raw material purification device. Background Art
[0002] Methanol to olefins is an important chemical process that produces low-carbon olefins (mainly ethylene and propylene) through catalytic conversion of methanol. Methanol to olefins technology has been developed in recent years as an important alternative to the petroleum route for producing olefins. Especially in the context of tight petroleum resources, the use of coal, natural gas and other resources to prepare methanol and then produce olefins through the MTO process is of great significance.
[0003] In the methanol to olefins (MTO) process, the quality of the methanol feedstock directly affects the quality and yield of the final product. The methanol feedstock may contain moisture, organic impurities, etc. These impurities will reduce the activity of the catalyst, affect the selectivity and efficiency of the reaction, and even cause catalyst poisoning. Existing purification methods have poor purification effects, high costs, and complex operations. Utility Model Content
[0004] (1) Technical problems solved
[0005] In view of the shortcomings of the existing technology, the present invention provides a methanol to olefins raw material purification device, which has the advantages of improving the purification effect of methanol raw materials and solves the problems mentioned in the above background technology.
[0006] (2) Technical solution
[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a methanol to olefins raw material purification device, comprising a box body, wherein the four corners of the lower surface of the box body are fixedly connected to support legs, a purification mechanism is provided inside the box body, and a stirring mechanism is provided at the upper middle portion of the box body, and the purification mechanism includes a first slide groove, the number of the first slide grooves is two, and the two first slide grooves are respectively opened above the left and right sides of the inner wall of the box body, a first sliding rod is provided inside the first slide groove, one side of the first sliding rod is fixedly connected to the first filter plate, and the middle portion of the front of the first filter plate is fixedly connected to the first handle, and the middle portions of the left and right sides of the inner wall of the box body are opened with a second slide groove, a second sliding rod is provided inside the second slide groove, one side of the second sliding rod is fixedly connected to the second filter plate, and the middle portion of the front of the second filter plate is fixedly connected to the second handle.
[0008] Preferably, hinges are provided above and below the left side of the box body close to the front, a sealing plate is fixedly connected to the other side of the hinge, and a handle is fixedly connected to the middle part of the left side of the sealing plate close to the front.
[0009] The two hinges correspond to each other, and the sealing plate can rotate on the front of the box through the hinges to seal the front of the box. The handle makes it convenient for the operator to pull the sealing plate.
[0010] Preferably, a feed pipe is fixedly connected to the middle of the left and right sides of the upper surface of the box body, a feed pipe is fixedly connected to the top of the feed pipe, and a number of heating pipes are fixedly connected to the inner wall of the feed pipe.
[0011] The methanol raw material enters the interior of the box through the feed pipe and the discharge pipe. The heating pipe heats the feed pipe, and then preheats the raw material entering the box in advance to reach the appropriate purification temperature.
[0012] Preferably, a third sliding groove is provided below both the left and right sides of the inner wall of the box, and a third sliding rod is provided inside the third sliding groove.
[0013] Preferably, one side of the third sliding rod is fixedly connected to a fixing frame, and four corners of the upper surface of the fixing frame are fixedly connected to threaded heads.
[0014] Preferably, a nanofiltration membrane is provided in the middle of the outer surface of the threaded head, and a nut is provided above the threaded head.
[0015] The two third slide grooves are respectively embedded in the lower left and right sides of the inner wall of the box. The third slide rod can slide back and forth inside the third slide groove. The fixed frame can move back and forth inside the box through the third slide rod. The interior of the fixed frame is hollow. The bottoms of the four threaded heads are vertically connected to the four corners of the upper surface of the fixed frame. The four corners of the nanofiltration membrane are respectively covered on the outside of the four threaded heads. The multivalent ions and large molecular impurities in methanol are removed through the nanofiltration membrane. The nut and the threaded head perform a threaded rotation motion to fix the nanofiltration membrane.
[0016] Preferably, the stirring mechanism includes a motor, and the bottom of the motor is fixedly installed in the middle of the upper surface of the box.
[0017] Preferably, one end of the motor is fixedly connected to a rotating rod, and a plurality of scrapers are fixedly connected to the bottom of the rotating rod.
[0018] The motor drives the scraper at the bottom to rotate through the rotating rod at the bottom, stirring the methanol raw material and molecular sieve adsorbent on the upper surface of the first filter plate to avoid blockage and improve the adsorption of moisture in the methanol raw material.
[0019] Compared with the existing technology, the utility model provides a methanol to olefins raw material purification device, which has the following beneficial effects:
[0020] 1. The utility model has a first slide groove opened on the upper left side of the inner wall of the box and a second slide groove opened in the middle of the left and right sides of the inner wall. The first slide rod can slide inside the first slide groove, and the second slide rod can slide inside the second slide groove. The first filter plate and the second filter plate can move back and forth inside the box respectively through the first slide rod and the second slide rod. A molecular sieve adsorbent is placed on the upper surface of the first filter plate, and an activated carbon adsorbent is placed on the upper surface of the second filter plate, thereby achieving the effect of improving the purification effect of the methanol raw material.
[0021] 2. The utility model has a third slide groove opened at the lower left and right sides of the inner wall of the box. The third slide rod can slide back and forth inside the third slide groove. The fixed frame can move back and forth inside the box through the third slide rod. The bottoms of the four threaded heads are respectively vertically connected to the four corners of the upper surface of the fixed frame. The four corners of the nanofiltration membrane are respectively sleeved on the outside of the four threaded heads. The nut is responsible for fixing the nanofiltration membrane, thereby achieving the effect of effectively removing inorganic impurities in methanol. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 This is a schematic diagram of the rear view structure of the utility model;
[0024] Figure 3 This is a schematic diagram of the front view of the box body of the present invention.
[0025] Among them: 1. Box body; 101. Support leg; 102. Hinge; 103. Sealing plate; 104. Handle; 105. Discharge pipe; 106. Feed pipe; 107. Heating pipe; 2. Purification mechanism; 201. First chute; 202. First slide bar; 203. First filter plate; 204. First handle; 205. Second chute; 206. Second slide bar; 207. Second filter plate; 208. Second handle; 209. Third chute; 210. Third slide bar; 211. Fixed frame; 212. Threaded head; 213. Nanofiltration membrane; 214. Nut; 3. Stirring mechanism; 301. Motor; 302. Rotating rod; 303. Scraper. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] See also Figure 1-3 , A methanol to olefins raw material purification device includes a box body 1, the four corners of the lower surface of the box body 1 are fixedly connected to support legs 101, a purification mechanism 2 is arranged inside the box body 1, and a stirring mechanism 3 is arranged at the upper middle part of the box body 1, the purification mechanism 2 includes a first chute 201, the number of the first chute 201 is two, the two first chute 201 are respectively opened above the left and right sides of the inner wall of the box body 1, a first sliding rod 202 is arranged inside the first chute 201, one side of the first sliding rod 202 is fixedly connected to a first filter plate 203, a first handle 204 is fixedly connected to the middle part of the front of the first filter plate 203, a second chute 205 is opened in the middle part of the left and right sides of the inner wall of the box body 1, a second sliding rod 206 is arranged inside the second chute 205, a second filter plate 207 is fixedly connected to one side of the second sliding rod 206, and a second handle 208 is fixedly connected to the middle part of the front of the second filter plate 207, the support legs 101 support the box body 1, the two first The slide groove 201 is respectively embedded in the upper left and right sides of the inner wall of the box body 1, and the first slide bar 202 can slide back and forth inside the first slide groove 201, and the first filter plate 203 can move back and forth inside the box body 1 through the first slide bar 202. The two second slide grooves 205 are respectively embedded in the middle of the left and right sides of the inner wall of the box body 1, and the second slide bar 206 can slide inside the second slide groove 205. The second filter plate 207 can move back and forth inside the box body 1 through the second slide bar 206. The first handle 204 and the second handle 208 can facilitate the operator to take the first filter plate 203 and the second filter plate 207. The upper surface of the first filter plate 203 is used to place the molecular sieve adsorbent. The analytical sieve has the ability to selectively absorb moisture. When the methanol raw material passes through the first filter plate 203, the moisture is adsorbed and removed. The upper surface of the second filter plate 207 is used to place activated carbon, which adsorbent can effectively adsorb and remove organic impurities in the raw material.
[0028] Specifically, such as Figure 2 As shown, hinges 102 are provided above and below the left side of the box body 1 near the front, a sealing plate 103 is fixedly connected to the other side of the hinge 102, and a handle 104 is fixedly connected to the middle part of the left side of the sealing plate 103 near the front.
[0029] Through the above technical solution, the two hinges 102 correspond to each other, and the sealing plate 103 can rotate on the front of the box body 1 through the hinge 102 to seal the front of the box body 1. The handle 104 makes it convenient for the operator to pull the sealing plate 103.
[0030] Specifically, such as Figure 1 As shown, a feed pipe 105 is fixedly connected to the middle of the left and right sides of the upper surface of the box body 1, a feed pipe 106 is fixedly connected to the top of the feed pipe 105, and a number of heating pipes 107 are fixedly connected to the inner wall of the feed pipe 106.
[0031] Through the above technical solution, the methanol raw material enters the interior of the box 1 through the feed pipe 106 and the discharge pipe 105, the heating pipe 107 heats the feed pipe 106, and then preheats the raw material entering the box 1 in advance to reach a suitable purification temperature.
[0032] Specifically, such as Figure 3 As shown, a third slide groove 209 is provided at the lower left and right sides of the inner wall of the box body 1, and a third slide rod 210 is provided inside the third slide groove 209. A fixed frame 211 is fixedly connected to one side of the third slide rod 210. Threaded heads 212 are fixedly connected at the four corners of the upper surface of the fixed frame 211. A nanofiltration membrane 213 is provided in the middle of the outer surface of the threaded head 212, and a nut 214 is provided above the threaded head 212.
[0033] Through the above technical solution, the two third slide grooves 209 are respectively embedded in the lower left and right sides of the inner wall of the box body 1, and the third slide rod 210 can slide back and forth inside the third slide groove 209. The fixed frame 211 can move back and forth inside the box body 1 through the third slide rod 210. The interior of the fixed frame 211 is hollow, and the bottoms of the four threaded heads 212 are respectively vertically connected to the four corners of the upper surface of the fixed frame 211. The four corners of the nanofiltration membrane 213 are respectively covered on the outside of the four threaded heads 212. The multivalent ions and large molecular impurities in methanol are removed through the nanofiltration membrane 213. The nut 214 and the threaded head 212 perform a threaded rotation movement, which is responsible for fixing the nanofiltration membrane 213.
[0034] Specifically, such as Figure 3 As shown, the stirring mechanism 3 includes a motor 301, the bottom of the motor 301 is fixedly installed in the middle of the upper surface of the box body 1, one end of the motor 301 is fixedly connected to a rotating rod 302, and the bottom of the rotating rod 302 is fixedly connected to a number of scrapers 303.
[0035] Through the above technical solution, the motor 301 drives the scraper 303 at the bottom to rotate through the rotating rod 302 at the bottom, stirring the methanol raw material and molecular sieve adsorbent on the upper surface of the first filter plate 203, avoiding blockage and improving the adsorption of moisture in the methanol raw material.
[0036] During use, the molecular sieve adsorbent is placed on the upper surface of the first filter plate 203, and the activated carbon adsorbent is placed on the upper surface of the second filter plate 207. Then the sealing plate 103 is closed, the front of the box 1 is sealed, the feed pipe 106 is heated, and the methanol raw material entering the feed pipe 106 is preheated. The preheated methanol raw material enters the interior of the box 1 through the discharge pipe 105 and falls on the upper surface of the first filter plate 203. The motor 301 drives the scraper 303 to stir the methanol raw material and the molecular sieve adsorbent through the rotating rod 302 at the bottom. After the first layer of screening, it falls into the second filter plate 207 below for organic impurities removal, and finally falls on the upper surface of the nanofiltration membrane 213 for the final removal of inorganic impurities.
[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A methanol to olefins raw material purification device, comprising a housing (1), characterized in that: The four corners of the lower surface of the box (1) are fixedly connected with support legs (101), the interior of the box (1) is provided with a purification mechanism (2), the upper middle part of the box (1) is provided with a stirring mechanism (3), the purification mechanism (2) includes a first chute (201), the number of the first chute (201) is two, the two first chute (201) are respectively opened on the upper left and right sides of the inner wall of the box (1), the interior of the first chute (201) is provided with a first slide bar (202), the first A first filter plate (203) is fixedly connected to one side of the slide rod (202), a first handle (204) is fixedly connected to the middle of the front of the first filter plate (203), a second slide groove (205) is provided in the middle of the left and right sides of the inner wall of the box body (1), a second slide rod (206) is provided inside the second slide groove (205), a second filter plate (207) is fixedly connected to one side of the second slide rod (206), and a second handle (208) is fixedly connected to the middle of the front of the second filter plate (207).
2. The methanol to olefins raw material purification device according to claim 1, characterized in that: Hinges (102) are provided above and below the left side of the box body (1) close to the front, a sealing plate (103) is fixedly connected to the other side of the hinge (102), and a handle (104) is fixedly connected to the middle part of the left side of the sealing plate (103) close to the front.
3. The methanol to olefins raw material purification device according to claim 1, characterized in that: A feed pipe (105) is fixedly connected to the middle of the left and right sides of the upper surface of the box body (1), a feed pipe (106) is fixedly connected to the top of the feed pipe (105), and a plurality of heating pipes (107) are fixedly connected to the inner wall of the feed pipe (106).
4. The methanol to olefins raw material purification device according to claim 1, characterized in that: A third sliding groove (209) is provided below both left and right sides of the inner wall of the box body (1), and a third sliding rod (210) is provided inside the third sliding groove (209).
5. The methanol to olefins raw material purification device according to claim 4, characterized in that: One side of the third sliding rod (210) is fixedly connected to a fixing frame (211), and four corners of the upper surface of the fixing frame (211) are fixedly connected to threaded heads (212).
6. The methanol to olefins raw material purification device according to claim 5, characterized in that: A nanofiltration membrane (213) is provided in the middle of the outer surface of the threaded head (212), and a nut (214) is provided above the threaded head (212).
7. The methanol to olefins feedstock purification device according to claim 1, characterized in that: The stirring mechanism (3) comprises a motor (301), the bottom of which is fixedly mounted on the middle portion of the upper surface of the box body (1).
8. The methanol to olefins feedstock purification device according to claim 7, characterized in that: One end of the motor (301) is fixedly connected to a rotating rod (302), and the bottom of the rotating rod (302) is fixedly connected to a number of scrapers (303).