CN204656279U - The absorption type recycling phenylethylene system that a kind of normal pressure is resolved - Google Patents
The absorption type recycling phenylethylene system that a kind of normal pressure is resolved Download PDFInfo
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- CN204656279U CN204656279U CN201520326122.XU CN201520326122U CN204656279U CN 204656279 U CN204656279 U CN 204656279U CN 201520326122 U CN201520326122 U CN 201520326122U CN 204656279 U CN204656279 U CN 204656279U
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Abstract
The utility model discloses the absorption type recycling phenylethylene system that a kind of normal pressure is resolved, reenter adsorption tanks after styrene gas being compressed by utilizing vortex compressor to adsorb, the desorption of styrene gas can be completed at ambient pressure, solve the problem that Vacuum Pressure Swing Adsorption recycling phenylethylene equipment desorption efficiency that styrene industry commonly uses is not high or vacuum pump failure rate is high and impact uses, desorption efficiency is significantly improved, and the cost of whole recovery system and fault rate also decline to a great extent than vavuum pump.
Description
Technical field
The utility model relates to recycling phenylethylene, particularly relates to the absorption type recycling phenylethylene system that a kind of normal pressure is resolved.
Background technology
Butadiene-styrene rubber is obtained through emulsion polymerization by butadiene and benzene styrene, therefore claims SBR.Being widely used in the fields such as the production of tire, adhesive tape, sebific duct, electric wire, medical apparatus and various rubber, is maximum general purpose synthetic rubber kind, is also one of rubber clone realizing suitability for industrialized production the earliest.Due to technological problemses such as synthetic ratios, the organic exhaust gas discharges such as a large amount of butadiene, styrene can be produced.The styrene administration way that past is commonly used mainly contains: catalytic oxidation, absorption, UF membrane, condensation etc.The absorption method in past is also Vacuum Pressure Swing Adsorption, many because styrene desorption efficiency is not high or vacuum pump failure rate is high and impact uses.The utility model was first compressed by vortex compressor before styrene gas enters adsorption tanks, styrene gas is adsorbed at middle pressure condition, thus desorption is carried out at ambient pressure, desorption efficiency significantly improves, and the cost of vortex compressor and fault rate also decline to a great extent than vavuum pump, realize the object of recycling phenylethylene better.
Utility model content
Utility model object: in order to overcome the problem that the Vacuum Pressure Swing Adsorption recycling phenylethylene equipment desorption efficiency commonly used of butadiene-styrene rubber synthesis industry existed in prior art is not high or vacuum pump failure rate is high and impact uses, the absorption type recycling phenylethylene system that the utility model provides a kind of normal pressure to resolve, desorption can be completed at ambient pressure, desorption efficiency significantly improves, and reduces styrene liquefaction cost recovery and fault rate.
Technical scheme: for achieving the above object, the absorption type recycling phenylethylene system that a kind of normal pressure of the present utility model is resolved comprises: vortex compressor, air accumulator, adsorption tanks group, refrigeration machine, styrene fluid reservoir;
Described vortex compressor is provided with inlet valve, air bleeding valve, by-passing valve, described inlet valve is connected with air inlet pipe, and described air bleeding valve is connected with described air accumulator;
Described adsorption tanks group comprises the first adsorption tanks and the second adsorption tanks, the microporous activated carbon adsorbent of column is equipped with in two adsorption tanks, bottom is provided with the bottom mouth of pipe, the described bottom mouth of pipe is provided with operated pneumatic valve group, and described operated pneumatic valve group comprises: the first intake valve, the second intake valve, first are resolved valve, second and resolved valve; The bottom mouth of pipe of the first adsorption tanks described in the first termination of described first intake valve and described first resolves the first end of valve, the first end of the second intake valve described in the second termination and described air accumulator; Second end of the first intake valve described in the first termination of described second intake valve and described air accumulator, the bottom mouth of pipe of the second adsorption tanks described in the second termination and described second resolves the second end of valve; The bottom mouth of pipe of the first adsorption tanks and the first end of described first intake valve described in first termination of described first parsing valve, the first end of the second parsing valve described in the second termination and refrigeration machine; Second first termination first of resolving valve resolves the second end of valve and the air inlet of refrigeration machine, the bottom mouth of pipe of the second termination second adsorption tanks and the second end of the second intake valve;
Described refrigeration machine comprises plate-fin evaporator, Piston Refrigerant Compreessor, air-cooled condenser and expansion valve and is connected formed refrigerant circulation loop successively; Described plate-fin evaporator is provided with air inlet, gas outlet, liquid outlet, refrigerant circulation entrance and exit, air inlet is as the air inlet of described refrigeration machine, resolve the second end of valve by pipeline and described first, the second first end of resolving valve is connected, liquid outlet is connected with styrene fluid reservoir by pipeline, refrigerant circulation outlet is connected with described Piston Refrigerant Compreessor, and loop head is connected with described expansion valve.
Further, this system also comprises switch board, and described switch board is connected with the by-passing valve of vortex compressor, and described vortex compressor is also provided with temperature sensor, is electrically connected with described switch board; Air accumulator is also provided with pressure sensor, is also electrically connected with described switch board.
Preferably, the described air inlet pipe of gas outlet circulation access of described plate-fin evaporator.
Preferably, described acticarbon is column microcellular structure.
Preferably, described vortex compressor is fire-proof motor.
Preferably, the inlet valve of described vortex compressor, air bleeding valve, by-passing valve all adopt explosion-proof solenoid valve.
Beneficial effect: with vortex compressor to styrene gas pressure-raising, makes desorption need not adopt Vacuum Pressure Swing Adsorption formula system, can complete at ambient pressure, desorption efficiency is significantly improved, system cost and fault rate are also declined to a great extent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the absorption type recycling phenylethylene system that normal pressure is resolved.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is further described.
The absorption type recycling phenylethylene system that normal pressure in Fig. 1 is resolved comprises vortex compressor 1, air accumulator 2, adsorption tanks group, refrigeration machine, styrene fluid reservoir 13 and switch board 14, refrigeration machine comprises plate-fin evaporator 9, Piston Refrigerant Compreessor 10, air-cooled condenser 11 are connected formed refrigerant circulation loop successively with expansion valve 12, vortex compressor 1 is provided with inlet valve, air bleeding valve, by-passing valve (not indicating in figure), inlet valve is connected with the air inlet pipe of DN100 bore, for the waste gas be recovered to is delivered in vortex compressor 1, air bleeding valve is connected with air accumulator 2 by the pipeline of DN50 bore, and by-passing valve is connected with switch board 14, adsorption tanks group comprises the first adsorption tanks 3 and the second adsorption tanks 4, the microporous activated carbon adsorbent of column is equipped with in adsorption tanks, to play better adsorption effect, the top of two adsorption tanks is provided with the top mouth of pipe, air outlet valve on the mouth of pipe of top, be drained in air for the gas after adsorption treatment, bottom is provided with the bottom mouth of pipe, the bore of the top mouth of pipe and the bottom mouth of pipe is DN50, the bottom mouth of pipe is provided with operated pneumatic valve group, and operated pneumatic valve group comprises: the first intake valve 5, second intake valve 6, first is resolved valve 7, second and resolved valve 8, the bottom mouth of pipe of the first termination first adsorption tanks 3 of the first intake valve 5 and first resolves the first end of valve 7, the first end of the second termination second intake valve 6 and air accumulator 2, second end of the first termination first intake valve 5 of the second intake valve 6 and the bottom mouth of pipe of air accumulator 2, second termination second adsorption tanks 4 and second resolve the second end of valve 8, the bottom mouth of pipe of the first termination first adsorption tanks 3 of the first parsing valve 7 and the first end of the first intake valve 5, the second termination second resolves the first end of valve 8 and the air inlet of refrigeration machine, second first termination first of resolving valve 8 resolves the second end of valve 7 and the air inlet of refrigeration machine, the bottom mouth of pipe of the second termination second adsorption tanks 4 and the second end of the second intake valve 6, plate-fin evaporator 9 is provided with air inlet, gas outlet, liquid outlet, refrigerant circulation entrance and exit, the air inlet of plate-fin evaporator 9 is as the air inlet of cold-producing medium, the second end of valve 7 resolved by the air inlet of plate-fin evaporator 9 by the pipeline and first that bore is DN25, second first end of resolving valve 8 connects, gas outlet is for discharging the gas after liquefaction process, and by these gas circulation access air inlet pipe, waste gas can fully be reclaimed, the liquid outlet of plate-fin evaporator 9 is that the pipeline of DN20 is connected with styrene fluid reservoir 13 by bore, for collecting the styrene of post liquefaction, the refrigerant circulation outlet of plate-fin evaporator 9 is connected with Piston Refrigerant Compreessor 10, loop head is connected with expansion valve 12, realize recycling of cold-producing medium, vortex compressor 1 is also provided with temperature sensor, is electrically connected with switch board 14, for gathering the temperature information of semi-closed screw type compressor 1 and passing to switch board 14, air accumulator 2 is also provided with pressure sensor, is also electrically connected with switch board 14, send switch board 14 to for the pressure information that gathers on air accumulator 2, switch board 14 is connected with the by-passing valve of vortex compressor 1, for sending control information according to temperature information and pressure information the open degree controlling by-passing valve.
During use, first open the first intake valve 5, close the second intake valve 6, first resolves valve 7 and second resolves valve 8, the waste gas be recovered to through air bleeding valve and pipeline enters air accumulator 2 after pressure-raising to 0.7MPa pressure through air inlet pipeline and inlet valve in vortex compressor 1, then adsorption tanks group is entered, by tank cylindrical microporous activated carbon adsorbent, after adsorbent in the first adsorption tanks 3 is saturated, close the first intake valve 5, open the second intake valve 6 and first and resolve valve 7, be switched to the second adsorption tanks 4 to adsorb, first adsorption tanks 3 then drop to normal pressure and carry out desorption, the benzene rich ethylene gas parsed then is resolved valve 7 by first and is entered in the plate-fin evaporator 9 of refrigeration machine by the road, liquefy under the cooling of low-temperature refrigerant and concentrate on base of evaporator, enter by pipeline the object that styrene fluid reservoir reaches recovery after confluxing, in like manner, if the second adsorption tanks 4 adsorb saturated after, open the first intake valve 5 and second and resolve valve 8, close first and resolve valve 7 and the second intake valve 6, first adsorption tanks 3 start absorption again, and the second adsorption tanks 4 drop to normal pressure and carry out desorption, and the switch of operated pneumatic valve group closes the work of cooperation two adsorption tanks, complete the alternation of adsorption tanks, improve treatment effeciency,
Switch board 14 by the data acquisition control styrene gas of the pressure sensor on air accumulator 2 by the open degree of vortex compressor 1 by-passing valve to regulate pressure at expulsion; by to styrene gas by the open degree of the data acquisition control compressor bypass valve of the temperature sensor on vortex compressor 1 to regulate delivery temperature; set safety precautions simultaneously, guarantee security of system, stably run.Switch board 14 inside is provided with programmable logic controller (PLC) PLC, the data feedback that sensor collects to the processor of PLC, then by being controlled the by-passing valve of vortex compressor 1 after PLC computing by control loop.
Styrene industry usual styrene effusion tolerance is little, and atmospheric styrene boiling point is 145 DEG C, and therefore the utility model adopts vortex compressor.In order to adapt to the explosive properties of styrene gas, vortex compressor 1 adopts special fire-proof motor, and inlet valve, air bleeding valve, by-passing valve all adopt explosion-proof solenoid valve and anti-explosion terminal box; In order to prevent lubricating oil atomization after stain styrene gas, vortex compressor adopts oil-free lubrication mode; Can not cause in order to ensure compression process and fire, compressor outside is provided with heat radiation or cooling device; There is provided a series of safety precautions by switch board 14 simultaneously.
Refrigeration machine can provide 0 DEG C of low temperature, in styrene liquefaction process, low-temperature refrigerant in plate-fin evaporator 9 and styrene gas heat exchange, be cooled and cold-producing medium evaporation while efficient liquefaction at styrene, the steam produced enters Piston Refrigerant Compreessor 10, cooled by air-cooled condenser 11 pairs of cold-producing mediums again after being compressed by Piston Refrigerant Compreessor 10, control finally by expansion valve 12 pairs of cold-producing medium throttlings and be transmitted back in plate-fin evaporator 9, achieving the closed circuit of cold-producing medium.
Claims (6)
1. an absorption type recycling phenylethylene system for normal pressure parsing, it is characterized in that, this system comprises: vortex compressor (1), air accumulator (2), adsorption tanks group, refrigeration machine, styrene fluid reservoir (13);
(1) is provided with inlet valve, air bleeding valve and by-passing valve to described vortex compressor, and described inlet valve is connected with air inlet pipe, and described air bleeding valve is connected with described air accumulator (2);
Described adsorption tanks group comprises the first adsorption tanks (3) and the second adsorption tanks (4), acticarbon is equipped with in two adsorption tanks, bottom is provided with the bottom mouth of pipe, the described bottom mouth of pipe is provided with operated pneumatic valve group, and described operated pneumatic valve group comprises: the first intake valve (5), the second intake valve (6), first are resolved valve (7) and second and resolved valve (8); The bottom mouth of pipe of the first adsorption tanks (3) described in the first termination of described first intake valve (5) and described first resolves the first end of valve (7), the first end of the second intake valve (6) described in the second termination and described air accumulator (2); Second end of the first intake valve (5) described in the first termination of described second intake valve (6) and described air accumulator (2), the bottom mouth of pipe of the second adsorption tanks (4) described in the second termination and described second resolves the second end of valve (8); The bottom mouth of pipe of the first adsorption tanks (3) and the first end of described first intake valve (5) described in first termination of described first parsing valve (7), described in the second termination, second resolves the first end of valve (8) and the air inlet of refrigeration machine; Second first termination first of resolving valve (8) resolves the second end of valve (7) and the air inlet of refrigeration machine, the bottom mouth of pipe of the second termination second adsorption tanks (4) and the second end of the second intake valve (6);
Described refrigeration machine comprises plate-fin evaporator (9), Piston Refrigerant Compreessor (10), air-cooled condenser (11) are connected formed refrigerant circulation loop successively with expansion valve (12); Described plate-fin evaporator (9) is provided with air inlet, gas outlet, liquid outlet, refrigerant circulation entrance and exit, air inlet is as the air inlet of described refrigeration machine, the first end that second end, second of resolving valve (7) by pipeline and described first resolves valve (8) is connected, liquid outlet is connected with styrene fluid reservoir (13) by pipeline, refrigerant circulation outlet is connected with described Piston Refrigerant Compreessor (10), and loop head is connected with described expansion valve (12).
2. the absorption type recycling phenylethylene system of normal pressure parsing according to claim 1, is characterized in that, the described air inlet pipe of gas outlet circulation access of described plate-fin evaporator (9).
3. the absorption type recycling phenylethylene system of normal pressure parsing according to claim 1, it is characterized in that, described acticarbon is column microcellular structure.
4. the absorption type recycling phenylethylene system of normal pressure parsing according to claim 1, it is characterized in that, this system also comprises switch board (14), described switch board (14) is connected with the by-passing valve of vortex compressor (1), described vortex compressor (1) is also provided with temperature sensor, is electrically connected with described switch board (14); Described air accumulator (2) is also provided with pressure sensor, is also electrically connected with described switch board (14).
5. the absorption type recycling phenylethylene system of normal pressure parsing according to claim 1, it is characterized in that, described vortex compressor (1) is fire-proof motor.
6. the absorption type recycling phenylethylene system of normal pressure parsing according to claim 1, it is characterized in that, the inlet valve of described vortex compressor (1), air bleeding valve, by-passing valve all adopt explosion-proof solenoid valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520326122.XU CN204656279U (en) | 2015-05-19 | 2015-05-19 | The absorption type recycling phenylethylene system that a kind of normal pressure is resolved |
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| CN201520326122.XU CN204656279U (en) | 2015-05-19 | 2015-05-19 | The absorption type recycling phenylethylene system that a kind of normal pressure is resolved |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105732896A (en) * | 2016-04-28 | 2016-07-06 | 浙江天晨胶业股份有限公司 | Production method and production system for synthetic latex by virtue of continuous production type recovery of styrene |
| CN109304084A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | Method for organic waste gas recovery containing styrene in a kind of tank field and entrucking material |
| CN113906001A (en) * | 2019-08-23 | 2022-01-07 | 昭和电工株式会社 | Process for recovery of olefins |
| CN117018816A (en) * | 2023-05-15 | 2023-11-10 | 北京石油化工学院 | Recovery device for ethylbenzene dehydrogenation tail gas adsorption and desorption styrene and hydrogen |
-
2015
- 2015-05-19 CN CN201520326122.XU patent/CN204656279U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105732896A (en) * | 2016-04-28 | 2016-07-06 | 浙江天晨胶业股份有限公司 | Production method and production system for synthetic latex by virtue of continuous production type recovery of styrene |
| CN105732896B (en) * | 2016-04-28 | 2018-01-12 | 浙江天晨胶业股份有限公司 | Continuous-production-type reclaims the synthetic latex production method and production system of styrene |
| CN109304084A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | Method for organic waste gas recovery containing styrene in a kind of tank field and entrucking material |
| CN113906001A (en) * | 2019-08-23 | 2022-01-07 | 昭和电工株式会社 | Process for recovery of olefins |
| CN117018816A (en) * | 2023-05-15 | 2023-11-10 | 北京石油化工学院 | Recovery device for ethylbenzene dehydrogenation tail gas adsorption and desorption styrene and hydrogen |
| CN117018816B (en) * | 2023-05-15 | 2024-04-30 | 北京石油化工学院 | Recovery device for ethylbenzene dehydrogenation tail gas adsorption and desorption styrene and hydrogen |
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