阅读说明：本技术 一种甲基叔丁基醚的脱硫装置 (Desulphurization unit of methyl tert butyl ether ) 是由 崔虎虎 于 2019-10-17 设计创作，主要内容包括：一种甲基叔丁基醚的脱硫装置,包括静态混合器、合成反应器和蒸馏塔,所述静态混合器包括第一混合部和第二混合部,所述第一混合部具有容腔,所述容腔内设置有蜂窝状液体通道,所诉蜂窝状液体通道将所述容腔分隔为第一容腔与第二容腔,所述第一容腔的侧壁上设置有第一进液口,所述第二容腔与所述第二混合部通过管路连接,所述管路内设置有扰流板,所述第二混合部内设置有多个混合叶片；第一混合部和第二混合部的设计使得物料可以混合更加均匀,有助于后续工作的进行。(A desulfurization device for methyl tert-butyl ether comprises a static mixer, a synthesis reactor and a distillation tower, wherein the static mixer comprises a first mixing part and a second mixing part, the first mixing part is provided with an accommodating cavity, a honeycomb-shaped liquid channel is arranged in the accommodating cavity, the accommodating cavity is divided into a first accommodating cavity and a second accommodating cavity by the honeycomb-shaped liquid channel, a first liquid inlet is formed in the side wall of the first accommodating cavity, the second accommodating cavity is connected with the second mixing part through a pipeline, a spoiler is arranged in the pipeline, and a plurality of mixing blades are arranged in the second mixing part; the design of first mixing portion and second mixing portion makes the material can mix more evenly, helps going on of follow-up work.)

1. The desulfurization device for the methyl tert-butyl ether is characterized by comprising a static mixer, a synthesis reactor and a distillation tower, wherein the static mixer comprises a first mixing part and a second mixing part, the first mixing part is provided with an accommodating cavity, a honeycomb-shaped liquid channel is arranged in the accommodating cavity, the accommodating cavity is divided into a first accommodating cavity and a second accommodating cavity by the honeycomb-shaped liquid channel, a first liquid inlet is formed in the side wall of the first accommodating cavity, the second accommodating cavity is connected with the second mixing part through a pipeline, a spoiler is arranged in the pipeline, and a plurality of mixing blades are arranged in the second mixing part; the synthesis reactor comprises a reactor shell, a reactor inlet and a reactor outlet, wherein a catalyst bed layer and a liquid distributor are arranged in the reactor shell, the liquid distributor is positioned above the catalyst bed layer inlet, a lateral line feeding pipe is arranged on the liquid distributor, a catalyst feeding hole is formed in the upper part of the catalyst bed layer, and a catalyst discharging hole is formed in the lower part of the catalyst bed layer; the distillation column includes distillation column body and baffle, is provided with the baffle on the distillation column body inner wall, evenly be provided with the aperture on the baffle, the removable setting of baffle is on the inner wall.

2. The apparatus of claim 1, wherein the mixing blades are helical blades, and each of the helical blades has a plurality of through holes.

3. The apparatus of claim 2, wherein the second mixing portion has a cylindrical structure, and a plurality of mixing blades are detachably disposed inside the second mixing portion.

4. The apparatus for desulfurizing methyl tert-butyl ether according to claim 1, wherein said baffle has a semicircular structure.

5. The apparatus for desulfurizing methyl tert-butyl ether according to claim 1, wherein said baffles are uniformly staggered on the inner wall of the distillation column.

Technical Field

The invention relates to equipment in the field of petrochemical industry, in particular to a desulfurization device for methyl tert-butyl ether.

Background

At present, the domestic gasoline is commonly added with methyl tert-butyl ether to improve the octane number of the gasoline. But the new environmental protection regulations require that the gasoline reaches the national IV or V standard, namely that the sulfur content is less than 50mg/kg or 10 mg/kg. At present, the main production process of the methyl tert-butyl ether in China is to etherify and separate mixed C4 and methanol in a catalytic distillation tower with cation exchange resin as a catalyst. The methyl tert-butyl ether product usually contains 50-200mg/kg of sulfide, and some methyl tert-butyl ethers produced by manufacturers sometimes contain up to 2000mg/kg of sulfide, so that the methyl tert-butyl ether must be desulfurized to be used as an ideal blending component, and the desulfurization equipment in the prior art cannot completely remove the low-boiling-point component sulfide in the ancient desulfurization city.

Disclosure of Invention

The invention aims to provide a methyl tert-butyl ether desulfurization device which has the characteristics of simple structure, diversified functions and convenience in use.

In order to solve the technical problems, the invention provides a desulfurization device for methyl tert-butyl ether, which comprises a static mixer, a synthesis reactor and a distillation tower, wherein the static mixer comprises a first mixing part and a second mixing part, the first mixing part is provided with an accommodating cavity, a honeycomb-shaped liquid channel is arranged in the accommodating cavity, the accommodating cavity is divided into a first accommodating cavity and a second accommodating cavity by the honeycomb-shaped liquid channel, a first liquid inlet is formed in the side wall of the first accommodating cavity, the second accommodating cavity is connected with the second mixing part through a pipeline, a spoiler is arranged in the pipeline, and a plurality of mixing blades are arranged in the second mixing part; the synthesis reactor comprises a reactor shell, a reactor inlet and a reactor outlet, wherein a catalyst bed layer and a liquid distributor are arranged in the reactor shell, the liquid distributor is positioned above the catalyst bed layer inlet, a lateral line feeding pipe is arranged on the liquid distributor, a catalyst feeding hole is formed in the upper part of the catalyst bed layer, and a catalyst discharging hole is formed in the lower part of the catalyst bed layer; the distillation tower comprises a distillation tower body and a baffle plate, the baffle plate is arranged on the inner wall of the distillation tower body, and small holes are uniformly formed in the baffle plate.

In order to better use the mixing blades, the invention improves that the mixing blades are arranged into spiral blades, and each spiral blade is provided with a plurality of through holes.

In order to better use the second mixing part, the invention improves that the second mixing part is cylindrical, and a plurality of mixing blades are arranged in the second mixing part in a detachable mode.

In order to better use the baffle, the invention improves that the baffle is in a semicircular structure.

In order to better distill materials, the invention improves that the baffle plates are uniformly arranged on the inner wall of the distillation tower body in a staggered mode.

The invention has the beneficial effects that: the invention has novel design and simple structure, the first mixing part and the second mixing part can mix materials more uniformly and is beneficial to the follow-up work, the mixing blades are detachably connected with the second mixing part, the cleaning of mixing parts is convenient, the use of people for the balance is convenient, the design of the small holes on the baffle plate slows down the rising speed of gas in the distillation tower, the distillation time is increased, the distillation effect is better, the operation, the maintenance and the maintenance of staff are convenient, in addition, the investment and the operating cost are greatly reduced compared with a stirred bed reactor and a fluidized bed reactor, and the invention has the characteristics of large operation flexibility and strong adaptability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a baffle of the present invention;

description of reference numerals: 1-a first mixing section; 2-a second mixing section; 3-honeycomb liquid channels; 4-a first cavity; 5-a second cavity; 6-pipeline; 7-a spoiler; 8-mixing blades; 9-a reactor shell; 10-reactor inlet; 11-reactor outlet; 12-a catalyst bed; 13-a liquid distributor; 14-side feed pipe; 15-catalyst feed port; 16-a catalyst discharge opening; 17-a distillation column; 18-a baffle plate; 19-Small hole.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-2, the present invention provides a desulfurization apparatus for methyl tert-butyl ether, including a static mixer, a synthesis reactor and a distillation column, where the static mixer includes a first mixing portion 1 and a second mixing portion 2, the first mixing portion 1 has an accommodating chamber, a honeycomb liquid channel 3 is provided in the accommodating chamber, the honeycomb liquid channel 3 divides the accommodating chamber into a first accommodating chamber 4 and a second accommodating chamber 5, a first liquid inlet is provided on a side wall of the first accommodating chamber 4, the second accommodating chamber 5 is connected to the second mixing portion 2 through a pipeline 6, a spoiler 7 is provided in the pipeline 6, and a plurality of mixing blades 8 are provided in the second mixing portion 2; the synthesis reactor comprises a reactor shell 9, a reactor inlet 10 and a reactor outlet 11, wherein a catalyst bed layer 12 and a liquid distributor 13 are arranged in the reactor shell 9, the liquid distributor 13 is positioned above the inlet of the catalyst bed layer 12, a lateral line feeding pipe 14 is arranged on the liquid distributor 13, a catalyst feeding hole 15 is arranged at the upper part of the catalyst bed layer 12, and a catalyst discharging hole 16 is arranged at the lower part of the catalyst bed layer; the distillation tower comprises a distillation tower body 17 and a baffle 18, wherein the baffle 18 is arranged on the inner wall of the distillation tower body 17, and small holes 19 are uniformly formed in the baffle 18.

For better use of the mixing blades, the mixing blades 8 are provided as helical blades, each of which is provided with a plurality of through holes. For better use of the second mixing section, the second mixing section 2 is of cylindrical configuration, and a plurality of mixing blades 8 are removably arranged inside the second mixing section 2. For better use of the baffle, the baffle 18 is of a semi-circular configuration. In order to better distill the materials, the baffle plates are uniformly staggered on the inner wall of the distillation tower body 17.

The reaction desulfurizer is contacted with the sulfur-containing material before or after etherification reaction of the methyl tert-butyl ether and is uniformly mixed by a static mixer, the liquid is mixed by a honeycomb-shaped liquid channel 3 in a first mixing part 1 and then is mixed by a second mixing part 2 again, a plurality of through holes are formed in a mixing blade 8 of the second mixing part 2, the mixing is uniform, the liquid flowing through a pipeline 6 is collided with a spoiler 7 by the design of the spoiler 7, so that turbulence is formed, the mixing effect is improved, the liquid enters a synthesis reactor for catalytic reaction, and then the high-boiling point high-sulfur-containing component is separated by a distillation tower to obtain the methyl tert-butyl ether product with ultralow sulfur content.

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 performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.