CN114100170A - Method for removing sulfide in methyl tert-butyl ether - Google Patents
Method for removing sulfide in methyl tert-butyl ether Download PDFInfo
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- CN114100170A CN114100170A CN202111469626.3A CN202111469626A CN114100170A CN 114100170 A CN114100170 A CN 114100170A CN 202111469626 A CN202111469626 A CN 202111469626A CN 114100170 A CN114100170 A CN 114100170A
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- butyl ether
- methyl tert
- box body
- fixedly connected
- column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/40—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation
- C07C41/42—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation by distillation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention provides a method for removing sulfides in methyl tert-butyl ether, which uses a device for removing sulfides in methyl tert-butyl ether, and comprises the following steps: 1) putting non-desulfurized methyl tert-butyl ether into a catalytic distillation tower, adding a lateral line on the surface of the catalytic distillation tower, pumping out gas-phase methyl tert-butyl ether, and introducing the gas-phase methyl tert-butyl ether into a device for removing sulfides in the methyl tert-butyl ether for gas-liquid separation; 2) separating out the micro liquid drops which are possibly carried, returning the liquid to the bottom of the tower through gravity self-pressure, sending the gas-phase methyl tert-butyl ether to a device through an original heat exchanger, a cooler and an adjusting valve, and desulfurizing the sulfur-containing heavy component from the bottom of the catalytic distillation tower to a hydrofining device for desulfurization; the invention is convenient for the installation and the disassembly between the first box body and the second box body, the structural disassembly is carried out, and the maintenance and the cleaning of the interior of the first box body and the interior of the second box body are convenient.
Description
Technical Field
The invention relates to the technical field of methyl tert-butyl ether refining, in particular to a method for removing sulfides in methyl tert-butyl ether.
Background
With the gradual improvement of environmental protection standards, the restriction of China on the sulfur content of gasoline is more and more strict, wherein the sulfur content of the national V gasoline standard is required to be not more than 10mg/kg, and meanwhile, the region for executing the national V gasoline standard is rapidly expanded under the continuous influence of haze weather nationwide in recent years, the demand of the market on the national V gasoline is greatly increased, and the upgrading of the quality of oil products is urgent. Domestic gasoline is mainly catalytic cracking gasoline, and can meet the requirement that the sulfur content is not more than 10mg/kg by an adsorption desulfurization (namely S zorb) technology. However, methyl tert-butyl ether (MTBE) is used as a blending component of gasoline with a high octane number, the addition ratio of the MTBE is usually 8% -15%, and the sulfur content in the MTBE product is always high due to the enrichment effect of sulfur in the MTBE synthesis process, generally hundreds of mg/kg are produced by manufacturers, and even more than 1000mg/kg is produced by individual manufacturers. The high sulfur content of MTBE seriously affects the quality upgrading of gasoline, and the reduction of the sulfur content of MTBE is suitable for the situation requirement and meets the inevitable requirement of energy cleaning and environmental protection.
When the sulfide in the methyl tert-butyl ether is removed, a hydrocyclone needs to be used for gas-liquid separation, and the existing hydrocyclone for removing the sulfide in the methyl tert-butyl ether is inconvenient for structural separation and maintenance and cleaning of the inside.
Therefore, it is necessary to provide a method for removing sulfides from methyl tert-butyl ether to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for removing sulfides in methyl tert-butyl ether, which uses a device for removing sulfides in methyl tert-butyl ether, and comprises the following steps:
1) putting non-desulfurized methyl tert-butyl ether into a catalytic distillation tower, adding a lateral line on the surface of the catalytic distillation tower, pumping out gas-phase methyl tert-butyl ether, and introducing the gas-phase methyl tert-butyl ether into a device for removing sulfides in the methyl tert-butyl ether for gas-liquid separation;
2) separating out the micro liquid drops which are possibly carried, returning the liquid to the bottom of the tower through gravity self-pressure, sending the gas-phase methyl tert-butyl ether to a device through an original heat exchanger, a cooler and an adjusting valve, and desulfurizing the sulfur-containing heavy component from the bottom of the catalytic distillation tower to a hydrofining device for desulfurization;
the device for removing sulfides in the methyl tert-butyl ether comprises a first box body and a second box body, the second box body is installed on the surface of the first box body in a matched mode, a discharge port is formed in the bottom of the first box body, a discharge valve is installed inside the discharge port, a feed inlet is formed in the top of the second box body, a feed valve is installed inside the feed inlet, a first mounting plate is fixedly connected with the surface of the first box body in a symmetrical mode, a connecting device is installed on the surface of the first mounting plate in a matched mode, a limiting device is fixedly connected with the surface of the first mounting plate, the limiting device is connected with the connecting device through threads, a second mounting plate is fixedly connected with the surface of the second box body in a symmetrical mode, the second mounting plate is fixedly connected with the connecting device, and through holes are formed in the surfaces of the first box body and the second box body.
Preferably, the surface of the first box body is fixedly connected with a sealing gasket, and the sealing gasket is installed in a matching manner with the second box body.
Preferably, connecting device includes lug, upstand, first spring, lift post, spreader, movable block and second spring, the one end fixedly connected with lug on second mounting panel surface, the fixed surface of lug is connected with the upstand, the surface cover of upstand is equipped with first spring, the sliding surface of upstand is connected with the lift post, the one end fixed connection of lug is kept away from with the spring to the lift post, the equidistant fixedly connected with spreader in surface of lift post, the sliding surface of spreader is connected with the movable block, the fixed surface of movable block is connected with the second spring, the second spring housing is established on the surface of spreader.
Preferably, first recess has been seted up on the surface of first mounting panel, it is three the spreader all cooperates the installation with first recess, the second recess has been seted up on second mounting panel surface, it is three the spreader all cooperates the installation with the second recess.
Preferably, the initial state of the first spring is a compressed state.
Preferably, stop device is including adjusting post, L template, first rack and second rack, the one end fixedly connected with L template of movable block is kept away from to the second spring, L template and spreader sliding mounting, the surperficial rotation of L template installs the regulation post, adjust the post and pass through threaded connection with the spreader, the first rack of fixed surface of L template, the side fixedly connected with second rack of first spring.
Preferably, the surface of the adjusting column is fixedly connected with an anti-skid pad.
Preferably, one end of the lifting column is fixedly connected with a limiting rod.
Compared with the related art, the invention has the following beneficial effects:
when the adjustable type rack-and-pinion type refrigerator is used, the first box body and the second box body are tightly matched under the elastic force action of the first spring and the second spring, the movable block is installed in a matched mode with the first installation plate, the position of the L-shaped plate is adjusted through the rotating adjusting column, the first rack is matched with the second rack, the first box body and the second box body are installed and limited, meanwhile, the first box body and the second box body can be conveniently installed and detached, structural disassembly is carried out, and maintenance and cleaning of the interior of the first box body and the interior of the second box body are facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a second schematic view of the overall structure of the present invention.
Reference numbers in the figures: 1. a first case; 2. a second case; 3. a discharge port; 4. a discharge valve; 5. a feed inlet; 6. a feed valve; 7. a first mounting plate; 8. a connecting device; 9. a limiting device; 10. a second mounting plate; 11. a through hole; 12. a gasket; 13. a bump; 14. a vertical post; 15. a first spring; 16. a lifting column; 17. a cross post; 18. a movable block; 19. a second spring; 20. a first groove; 21. a second groove; 22. an adjustment column; 23. an L-shaped plate; 24. a first rack; 25. a second rack; 26. a non-slip mat; 27. a limiting rod.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1 and fig. 2, a method for removing sulfides from methyl tert-butyl ether, which uses a device for removing sulfides from methyl tert-butyl ether, comprises the following steps:
1) putting non-desulfurized methyl tert-butyl ether into a catalytic distillation tower, adding a lateral line on the surface of the catalytic distillation tower, pumping out gas-phase methyl tert-butyl ether, and introducing the gas-phase methyl tert-butyl ether into a device for removing sulfides in the methyl tert-butyl ether for gas-liquid separation;
2) separating out the micro liquid drops which are possibly carried, returning the liquid to the bottom of the tower through gravity self-pressure, sending the gas-phase methyl tert-butyl ether to a device through an original heat exchanger, a cooler and an adjusting valve, and desulfurizing the sulfur-containing heavy component from the bottom of the catalytic distillation tower to a hydrofining device for desulfurization;
the device for removing sulfides in the methyl tert-butyl ether comprises a first box body 1 and a second box body 2, wherein the surface of the first box body 1 is provided with the second box body 2 in a matching way, the bottom of the first box body 1 is provided with a discharge hole 3, a discharge valve 4 is arranged inside the discharge hole 3, the top of the second box body 2 is provided with a feed inlet 5, a feed valve 6 is arranged inside the feed inlet 5, the surface of the first box body 1 is symmetrically and fixedly connected with a first mounting plate 7, the surface of the first mounting plate 7 is provided with a connecting device 8 in a matching way, the surface of the first mounting plate 7 is fixedly connected with a limiting device 9, the limiting device 9 is in threaded connection with the connecting device 8, the surface of the second box body 2 is symmetrically and fixedly connected with a second mounting plate 10, the second mounting plate 10 is fixedly connected with the connecting device 8, and the surfaces of the first box body 1 and the second box body 2 are both provided with through holes 11, the surface of the through-hole 11 may be fitted with a valve.
The surface of the first box body 1 is fixedly connected with a sealing gasket 12, the sealing gasket 12 is installed in a matching mode with the second box body 2, and the sealing performance of the joint of the first box body 1 and the second box body 2 is guaranteed.
The connecting device 8 comprises a lug 13, a vertical column 14, a first spring 15, a lifting column 16, a cross column 17, a movable block 18 and a second spring 19, one end of the surface of the second mounting plate 10 is fixedly connected with a convex block 13, the surface of the convex block 13 is fixedly connected with a vertical column 14, the surface of the vertical column 14 is sleeved with a first spring 15, the surface of the vertical column 14 is connected with a lifting column 16 in a sliding way, the lifting column 16 is fixedly connected with one end of the spring far away from the convex block 13, the surface of the lifting column 16 is fixedly connected with cross columns 17 at equal intervals, the surface of the transverse column 17 is connected with a movable block 18 in a sliding way, the surface of the movable block 18 is fixedly connected with a second spring 19, the second spring 19 is sleeved on the surface of the transverse column 17 to play a connecting role, and the first box body 1 and the second box body 2 are tightly matched by utilizing the elastic force action of the first spring 15 and the second spring 19.
The initial state of the first spring 15 is a compressed state, and sufficient acting force can be provided to ensure that the first box 1 and the second box 2 are stably matched.
The surface of the adjusting column 22 is fixedly connected with a non-slip mat 26, which facilitates the rotation adjustment of the adjusting column 22 and prevents slipping.
One end of the lifting column 16 is fixedly connected with a limiting rod 27, which protects the first spring 15 and prevents the first spring from generating plastic deformation.
The working principle is as follows: when the first box body 1 and the second box body 2 are installed, the three cross posts 17 are installed in a matched mode with the first groove 20 from top to bottom, in the process, the movable block 18 and the first installation plate 7 slide relatively, the second spring 19 is compressed, the generated reaction force acts on the surface of the movable block 18, so that the movable block 18 is tightly attached to the first installation plate 7, in the descending process of the cross posts 17, the lifting post 16 continues to compress the first spring 15 until the limiting rod 27 is in surface contact with the protruding block 13, at the moment, the first spring 15 reaches the maximum elastic limit, the reaction force generated by the first spring 15 after being compressed acts on the surface of the lifting post 16, then the adjusting post 22 is rotated to drive the L-shaped plate 23 to continue to compress the second spring 19, the adjusting post 22 is installed with the L-shaped plate 23 in a rotating mode until the first rack 24 is meshed with the second rack 25 to limit the lifting post 16, so that the first box body 1 is tightly matched with the second box body 2, when dismantling, the regulation post 22 is adjusted in the reverse rotation for first rack 24 and the separation of second rack 25, under the effect of first spring 15 elasticity, lift post 16 resumes initial position, and spreader 17 separates with first recess 20, and then carries out the separation of first box 1 and second box 2, and the installation and the dismantlement between the first box 1 of being convenient for and the second box 2 are convenient for maintain and clean the inside of first box 1 and second box 2.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A method for removing sulfides from methyl tert-butyl ether by using a device for removing sulfides from methyl tert-butyl ether is characterized by comprising the following steps:
1) putting non-desulfurized methyl tert-butyl ether into a catalytic distillation tower, adding a lateral line on the surface of the catalytic distillation tower, pumping out gas-phase methyl tert-butyl ether, and introducing the gas-phase methyl tert-butyl ether into a device for removing sulfides in the methyl tert-butyl ether for gas-liquid separation;
2) separating out the micro liquid drops which are possibly carried, returning the liquid to the bottom of the tower through gravity self-pressure, sending the gas-phase methyl tert-butyl ether to a device through an original heat exchanger, a cooler and an adjusting valve, and desulfurizing the sulfur-containing heavy component from the bottom of the catalytic distillation tower to a hydrofining device for desulfurization;
wherein the device for removing sulfides in the methyl tert-butyl ether comprises a first box body (1) and a second box body (2), the second box body (2) is installed on the surface of the first box body (1) in a matched mode, a discharge port (3) is formed in the bottom of the first box body (1), a discharge valve (4) is installed inside the discharge port (3), a feed port (5) is formed in the top of the second box body (2), a feed valve (6) is installed inside the feed port (5), a first mounting plate (7) is fixedly connected to the surface of the first box body (1) in a symmetrical mode, a connecting device (8) is installed on the surface of the first mounting plate (7) in a matched mode, a limiting device (9) is fixedly connected to the surface of the first mounting plate (7), the limiting device (9) is connected with the connecting device (8) through threads, and a second mounting plate (10) is fixedly connected to the surface of the second box body (2) in a symmetrical mode, the second mounting plate (10) is fixedly connected with the connecting device (8), and through holes (11) are formed in the surfaces of the first box body (1) and the second box body (2).
2. The device for removing sulfides in methyl tert-butyl ether according to claim 1, wherein the surface of the first box (1) is fixedly connected with a sealing gasket (12), and the sealing gasket (12) is matched with the second box (2) for installation.
3. The device for removing sulfides in methyl tert-butyl ether according to claim 2, wherein the connecting device (8) comprises a bump (13), a vertical column (14), a first spring (15), a lifting column (16), a horizontal column (17), a movable block (18) and a second spring (19), one end of the surface of the second mounting plate (10) is fixedly connected with the bump (13), the surface of the bump (13) is fixedly connected with the vertical column (14), the surface of the vertical column (14) is sleeved with the first spring (15), the surface of the vertical column (14) is slidably connected with the lifting column (16), the lifting column (16) and one end of the spring far away from the bump (13) are fixedly connected, the surface of the lifting column (16) is fixedly connected with the horizontal column (17) at equal intervals, the surface of the horizontal column (17) is slidably connected with the movable block (18), the surface of the movable block (18) is fixedly connected with the second spring (19), the second spring (19) is sleeved on the surface of the transverse column (17).
4. The device for removing sulfides in methyl tert-butyl ether according to claim 2, wherein the surface of the first mounting plate (7) is provided with a first groove (20), the three cross columns (17) are installed in a matching manner with the first groove (20), the surface of the second mounting plate (10) is provided with a second groove (21), and the three cross columns (17) are installed in a matching manner with the second groove (21).
5. Device for removing sulphide from methyl tert-butyl ether according to claim 2, characterized in that the initial state of the first spring (15) is a compressed state.
6. The device for removing sulfides in methyl tert-butyl ether according to claim 2, wherein the limiting device (9) comprises an adjusting column (22), an L-shaped plate (23), a first rack (24) and a second rack (25), one end of the second spring (19) far away from the movable block (18) is fixedly connected with the L-shaped plate (23), the L-shaped plate (23) is slidably mounted with the cross column (17), the adjusting column (22) is rotatably mounted on the surface of the L-shaped plate (23), the adjusting column (22) is in threaded connection with the cross column (17), the first rack (24) is fixedly connected to the surface of the L-shaped plate (23), and the second rack (25) is fixedly connected to the side surface of the first spring (15).
7. The apparatus for removing sulfides in methyl tert-butyl ether according to claim 6, wherein the surface of the adjusting column (22) is fixedly connected with a non-slip mat (26).
8. The device for removing sulfides in methyl tert-butyl ether according to claim 2, wherein a limiting rod (27) is fixedly connected to one end of the lifting column (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469626.3A CN114100170A (en) | 2021-12-03 | 2021-12-03 | Method for removing sulfide in methyl tert-butyl ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469626.3A CN114100170A (en) | 2021-12-03 | 2021-12-03 | Method for removing sulfide in methyl tert-butyl ether |
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| Publication Number | Publication Date |
|---|---|
| CN114100170A true CN114100170A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111469626.3A Withdrawn CN114100170A (en) | 2021-12-03 | 2021-12-03 | Method for removing sulfide in methyl tert-butyl ether |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070177455A1 (en) * | 2000-05-02 | 2007-08-02 | Renfro Charles K | Mixing apparatus and method |
| CN106554260A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of methyl tertiary butyl ether(MTBE) sulfur removal technology and device |
| CN108970162A (en) * | 2018-09-04 | 2018-12-11 | 王鹏 | A kind of alkylation reaction product separator |
| CN111166202A (en) * | 2020-02-03 | 2020-05-19 | 中山市元亨家居用品有限公司 | Soybean milk machine convenient to dismantle and clean |
| CN211462216U (en) * | 2019-12-05 | 2020-09-11 | 曲阜大禹水利工程有限公司 | Rotational flow sand settling device for hydraulic engineering |
| CN212821251U (en) * | 2020-05-20 | 2021-03-30 | 江苏天骄汽车配套有限公司 | Detachable cleaning device based on auxiliary rectifying device |
-
2021
- 2021-12-03 CN CN202111469626.3A patent/CN114100170A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070177455A1 (en) * | 2000-05-02 | 2007-08-02 | Renfro Charles K | Mixing apparatus and method |
| CN106554260A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of methyl tertiary butyl ether(MTBE) sulfur removal technology and device |
| CN108970162A (en) * | 2018-09-04 | 2018-12-11 | 王鹏 | A kind of alkylation reaction product separator |
| CN211462216U (en) * | 2019-12-05 | 2020-09-11 | 曲阜大禹水利工程有限公司 | Rotational flow sand settling device for hydraulic engineering |
| CN111166202A (en) * | 2020-02-03 | 2020-05-19 | 中山市元亨家居用品有限公司 | Soybean milk machine convenient to dismantle and clean |
| CN212821251U (en) * | 2020-05-20 | 2021-03-30 | 江苏天骄汽车配套有限公司 | Detachable cleaning device based on auxiliary rectifying device |
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Application publication date: 20220301 |
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