CN217895509U - Device for treating styrene tar - Google Patents
Device for treating styrene tar Download PDFInfo
- Publication number
- CN217895509U CN217895509U CN202222084306.2U CN202222084306U CN217895509U CN 217895509 U CN217895509 U CN 217895509U CN 202222084306 U CN202222084306 U CN 202222084306U CN 217895509 U CN217895509 U CN 217895509U
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- China
- Prior art keywords
- styrene tar
- tar
- styrene
- branch line
- riser reactor
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 title claims abstract description 238
- 239000000571 coke Substances 0.000 claims abstract description 14
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 9
- 238000004939 coking Methods 0.000 claims description 12
- 239000002918 waste heat Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- OWZPCEFYPSAJFR-UHFFFAOYSA-N 2-(butan-2-yl)-4,6-dinitrophenol Chemical compound CCC(C)C1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O OWZPCEFYPSAJFR-UHFFFAOYSA-N 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 4
- PJANXHGTPQOBST-VAWYXSNFSA-N trans-stilbene Chemical compound C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PJANXHGTPQOBST-UHFFFAOYSA-N trans-Stilbene Natural products C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- IUQAVTQCNOBOLZ-UHFFFAOYSA-N 1,2-dinitrobenzene;toluene Chemical compound CC1=CC=CC=C1.[O-][N+](=O)C1=CC=CC=C1[N+]([O-])=O IUQAVTQCNOBOLZ-UHFFFAOYSA-N 0.000 description 1
- WJRXGXYMRWUFQF-UHFFFAOYSA-N 4-butan-2-yl-2,6-dinitrophenol Chemical compound CCC(C)C1=CC([N+]([O-])=O)=C(O)C([N+]([O-])=O)=C1 WJRXGXYMRWUFQF-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- JRXXLCKWQFKACW-UHFFFAOYSA-N biphenylacetylene Chemical group C1=CC=CC=C1C#CC1=CC=CC=C1 JRXXLCKWQFKACW-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model provides a handle device of styrene tar, includes tar storage tank and the styrene tar feeding thread of being connected with the tar storage tank, the end of styrene tar feeding thread divide into first styrene tar feeding branch line and second styrene tar feeding branch line, and first styrene tar feeding branch line intercommunication coke burning jar, second styrene tar feeding branch line intercommunication main riser reactor, the utility model discloses can send into styrene tar according to self needs in a flexible way and produce saturated vapor or send into the riser reactor in the heat production and turn into the component of petrol, diesel oil to deal with styrene tar and produce certain benefit the environmental protection.
Description
Technical Field
The utility model relates to a styrene tar processing technology field, concretely relates to device for processing styrene tar.
Background
The styrene tar is a residual substance after the rectification of styrene, has complex components, contains high-boiling-point byproducts, polymer residues, polymerization inhibitors and the like in the production process of the styrene, and can generally reach more than 1 percent of the yield of the styrene. Since styrene monomer has self-polymerizing property, in order to reduce the loss caused by polymerization of styrene monomer in the styrene rectification process, a polymerization inhibitor 2,6-dinitro-4-sec-butyl phenol (DNBP) must be added in the styrene rectification process. Finally, DNBP (dinitrobenzene-toluene) can remain in styrene tar, and DNBP has biotoxicity, and direct discharge of unpurified styrene tar can cause adverse effects on the environment and the like, so that the national environmental protection ministry has listed styrene tar in national hazardous waste records as "heavy fraction produced in the process of producing styrene by catalytic dehydrogenation of ethylbenzene".
At present, enterprises producing styrene tar have the following ways to treat styrene tar: (1) The waste is treated by a professional hazardous waste treatment unit, and the treatment cost is higher in the mode. (2) As fuel oil type boiler fuel, the content of tar nitrogen is high, and nitrogen oxides in flue gas of a heating furnace exceed the standard during combustion, so that tar needs to be treated first, and the tar is removed as much as possible and then used as heating furnace fuel, a matched tar purification treatment device needs to be added, and waste water and waste residues can be generated in the treatment process. (3) The method is used as a feed of a coke tower to convert the styrene tar into the coker gasoline, the coker diesel and coke, but the additional value of products converted by processing the styrene tar in the mode is low.
In recent years, some new ways of recycling styrene tar have appeared, such as (1) preparing cement water reducing agent, recovering DNBP in the tar, carrying out sulfonation reaction on the residual tar, and then carrying out condensation reaction by using formaldehyde as a condensing agent to prepare the cement water reducing agent. (2) The method is characterized in that trans-stilbene crystals in tar are extracted, a certain amount of trans-1,2-stilbene (10% -17%) exists in the tar, the substance is an organic synthetic raw material, diphenylacetylene can be prepared, the method is widely applied to the industries of medicine, food, functional materials and dye, the trans-stilbene in the tar can be recovered through the processes of distillation, recrystallization, washing and the like, and a suitable treatment mode needs to be found for residual (80%) tar due to high investment of a newly-built treatment device. These new approaches can realize high value-added conversion of styrene tar, but all require removal of DNBP, so that to better treat or utilize styrene tar, it is necessary to perform harmless treatment, and investment in new equipment is also required to remove DNBP.
Disclosure of Invention
In order to solve the technical defects existing in the prior art, the utility model provides a device for treating styrene tar.
The utility model discloses a technical solution be: the utility model provides a handle device of styrene tar, includes tar storage tank and the styrene tar feeding thread of being connected with the tar storage tank, the end of styrene tar feeding thread divide into first styrene tar feeding branch line and second styrene tar feeding branch line, first styrene tar feeding branch line intercommunication scorching jar, second styrene tar feeding branch line intercommunication main riser reactor.
And one side of the main riser reactor is also provided with a secondary riser reactor, and the secondary riser reactor is communicated with the main riser reactor.
The upper end of the main riser reactor is provided with a settler, and the secondary riser reactor is communicated with the main riser reactor through the settler.
The upper part of the coke burning tank is provided with a regenerator, and the regenerator is communicated with the interior of the coke burning tank.
The coke burning tank is provided with a plurality of inclined pipes which are respectively communicated with the lower parts of the main riser reactor and the secondary riser reactor.
The coke burning tank is also provided with an external heat taking pipe which conducts heat and sends medium-pressure saturated steam generated after the steam-liquid separation of the deoxidized water to the waste heat boiler.
And flow control valves are arranged on the main styrene tar feeding line, the first styrene tar feeding branch line and the second styrene tar feeding branch line.
Flow control valves on the first styrene tar feeding branch line and the second styrene tar feeding branch line are respectively provided with a pilot shower valve and a pressure gauge in front.
The utility model has the advantages that: the utility model provides a handle device of styrene tar, including tar storage tank and the styrene tar feeding thread of being connected with the tar storage tank, the end of styrene tar feeding thread divide into first styrene tar feeding branch line and second styrene tar feeding branch line, and first styrene tar feeding branch line intercommunication coking retort, second styrene tar feeding branch line intercommunication main riser reactor, the utility model discloses can send into the coking retort with styrene tar heat production saturated vapor or send into the component that turns into petrol, diesel oil in the riser reactor according to self needs in a flexible way to deal with styrene tar and produce certain benefit with the environmental protection.
Drawings
FIG. 1 is a schematic view of the structure of the device for treating styrene tar according to the present invention.
Wherein, the system comprises a tar storage tank 1, a styrene tar feeding main line 2, a coking tank 3, a main riser reactor 4, a waste heat boiler 5, a first styrene tar feeding branch line 21, a second styrene tar feeding branch line 22, a regenerator 31, a secondary riser reactor 41 and a settler 42.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
The utility model provides a handle device of styrene tar, includes tar storage tank 1 and the styrene tar feeding thread 2 of being connected with tar storage tank 1, the end of styrene tar feeding thread 2 divide into first styrene tar feeding branch line 21 and second styrene tar feeding branch line 22, first styrene tar feeding branch line 21 intercommunication burnt jar 3, second styrene tar feeding branch line 22 intercommunication main riser reactor 4. And a secondary riser reactor 41 is arranged on one side of the main riser reactor 4, and the secondary riser reactor 41 is communicated with the main riser reactor 4. The utility model discloses can send into styrene tar according to self needs heat production saturated vapor or send into the component that converts into petrol, diesel oil in the riser reactor in the jar of scorching in a flexible way to handle styrene tar and produce certain benefit with the environmental protection.
The upper end of the main riser reactor 4 is provided with a settler 42, and the secondary riser reactor 41 is communicated with the main riser reactor 4 through the settler 42.
The upper part of the coking tank 3 is provided with a regenerator 31, and the regenerator 31 is communicated with the interior of the coking tank 3.
The coking tank 3 is provided with a plurality of inclined pipes which are respectively communicated with the lower parts of the main riser reactor 4 and the secondary riser reactor 41.
The coke burning tank 3 is also provided with an external heat taking pipe which conducts heat and sends medium-pressure saturated steam generated after the steam-liquid separation of the deoxidized water to the waste heat boiler 5.
The main styrene tar feeding line 2, the first styrene tar feeding branch line 21 and the second styrene tar feeding branch line 22 are all provided with flow control valves. And a pilot valve and a pressure gauge are arranged 10-30cm in front of the flow control valves on the first styrene tar feeding branch line 21 and the second styrene tar feeding branch line 22.
A method for flexibly treating styrene tar by adopting a device for treating styrene tar is operated according to one of the following modes:
(1) The second styrene tar feeding branch line 22 is closed, the first styrene tar feeding branch line 21 is opened, all styrene tar is sent into the coke burning tank to generate heat, and the heat is supplied to the waste heat boiler to generate superheated saturated steam after heat is extracted;
(2) Closing the first styrene tar feeding branch line 21, and opening the second styrene tar feeding branch line 22 to feed all the styrene tar into the main riser reactor 4 to contact with the catalyst, so that the styrene tar is converted into components of gasoline and diesel oil and a small amount of coke;
(3) Meanwhile, a first styrene tar feeding branch line 21 and a second styrene tar feeding branch line 22 are started, a part of styrene tar is fed into the main riser reactor 4 to produce gasoline, diesel oil and coke, and a part of styrene tar is fed into a coke burning tank to produce superheated saturated steam.
Example 1
Starting a main styrene tar feeding line 2 and a first styrene tar feeding branch line 21, closing a second styrene tar feeding branch line 22, introducing the styrene tar into a coking tank, and using the heat after combustion for generating superheated steam of 3.9MPa 420 ℃ by a waste heat boiler. The thermal efficiency of the boiler is 85%; the enthalpy value of water at 20 ℃ is 84kJ/kg, the enthalpy value of superheated steam at 3.9MPa 420 ℃ is 3264kJ/kg, and the calculation shows that 10 tons of superheated steam at 3.9MPa 420 ℃ can be generated by burning 1 ton of tar, and the product value is about 3000 yuan by using 1 ton of styrene tar according to the calculation of the steam price of 300 yuan/ton.
Example 2
The main styrene tar feeding line 2 and the second styrene tar feeding branch line 22 are opened, the first styrene tar feeding branch line 21 is closed, the styrene tar is introduced into the main riser, the yield of light oil produced after the styrene tar is cracked in the main riser is 55%, the yield of heavy oil is 35%, and the yield of coke is 10%. The product value created by using 1 ton of styrene tar according to the method is about 4000 yuan by calculating the average price of light oil of 5700 yuan/ton and the average price of heavy oil of 3000 yuan/ton.
Example 3
Starting a main feeding line 2 of the styrene tar, a first feeding branch line 21 of the styrene tar and a second feeding branch line 22 of the styrene tar, and respectively introducing the styrene tar into a coking tank and a main riser, wherein the feeding amount of the coking tank is 1t/h, and the feeding amount of the main riser is 2t/h. Thus, the styrene tar is treated, 10 tons of superheated saturated steam at the temperature of 420 ℃ of 3.9MPa is generated by taking heat from the coking tank and the waste heat boiler every hour, 1.1 ton of cracked light oil and 0.7 ton of cracked heavy oil are generated by the main riser every hour.
The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a handle device of styrene tar, includes tar storage tank (1) and styrene tar feeding thread (2) of being connected with tar storage tank (1), its characterized in that, the end of styrene tar feeding thread (2) divide into first styrene tar feeding branch line (21) and second styrene tar feeding branch line (22), first styrene tar feeding branch line (21) intercommunication burnt jar (3), second styrene tar feeding branch line (22) intercommunication main riser reactor (4).
2. The apparatus for treating styrene tar according to claim 1, wherein a secondary riser reactor (41) is further provided at one side of said primary riser reactor (4), said secondary riser reactor (41) being in communication with said primary riser reactor (4).
3. The apparatus for treating styrene tar according to claim 2, wherein said primary riser reactor (4) has a settler (42) at the upper end thereof, and said secondary riser reactor (41) is connected to said primary riser reactor (4) through said settler (42).
4. The apparatus for treating styrene tar as claimed in claim 1, wherein said coking tank (3) is provided at an upper portion thereof with a regenerator (31), and said regenerator (31) is communicated with the interior of said coking tank (3).
5. The apparatus for treating styrene tar according to claim 2, wherein said coke-burning tank (3) is provided with a plurality of inclined tubes, and said plurality of inclined tubes are respectively communicated with the lower portions of said primary riser reactor (4) and said secondary riser reactor (41).
6. The device for treating styrene tar according to claim 1, wherein the coke burning tank (3) is further provided with an external heat taking pipe, and the external heat taking pipe transfers heat and sends medium-pressure saturated steam generated after the steam-liquid separation of the deoxidized water to the waste heat boiler (5).
7. The apparatus for treating styrene tar according to claim 1, wherein said main styrene tar feeding line (2), said first styrene tar feeding branch line (21) and said second styrene tar feeding branch line (22) are provided with flow control valves.
8. The apparatus for treating styrene tar according to claim 7, wherein the flow control valves of the first styrene tar feeding branch line (21) and the second styrene tar feeding branch line (22) are respectively provided with a pilot valve and a pressure gauge in front thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222084306.2U CN217895509U (en) | 2022-08-09 | 2022-08-09 | Device for treating styrene tar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222084306.2U CN217895509U (en) | 2022-08-09 | 2022-08-09 | Device for treating styrene tar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217895509U true CN217895509U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222084306.2U Active CN217895509U (en) | 2022-08-09 | 2022-08-09 | Device for treating styrene tar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217895509U (en) |
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2022
- 2022-08-09 CN CN202222084306.2U patent/CN217895509U/en active Active
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