CN201262520Y - Chilling apparatus for ethylbenzene dehydrogenation gas - Google Patents
Chilling apparatus for ethylbenzene dehydrogenation gas Download PDFInfo
- Publication number
- CN201262520Y CN201262520Y CNU2008201516648U CN200820151664U CN201262520Y CN 201262520 Y CN201262520 Y CN 201262520Y CN U2008201516648 U CNU2008201516648 U CN U2008201516648U CN 200820151664 U CN200820151664 U CN 200820151664U CN 201262520 Y CN201262520 Y CN 201262520Y
- Authority
- CN
- China
- Prior art keywords
- quench
- chiller
- valve
- condenser
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a gas shock chilling device, and provides a shock chilling device for ethylbenzene dehydrogenation gas, which comprises a chiller, a shock chilling valve, a condenser, an oil-water separating tank, a pump and a cyclone separator, wherein, the shock chilling valve is arranged in the chiller; the inlet of the condenser is communicated with the chiller; the liquid phase outlet of the condenser is communicated with the inlet of the oil-water separating tank; the gas phase outlet of the condenser is communicated with subsequent process; the aqueous phase outlet of the oil-water separating tank is communicated with the inlet of the cyclone separator by the pump; the oil phase outlet of the oil-water separating tank is communicated with the subsequent process; the light phase outlet arranged at the top end of the cyclone separator is communicated with the inlet of the oil-water separating tank; and the heavy phase outlet arranged at the bottom of the cyclone separator is communicated with the subsequent process and the shock chilling valve. The device can completely avoid additionally adding shock chilling water and has remarkable shock chilling effect and high reliability and stability. Compared with traditional equipment, when treating the same materials, the gas shock chilling device can reduce the total amount of condensed water by 5 to 10 percent and has obvious economic benefit.
Description
Technical field
The utility model relates to the chilling device of gas, is specifically related to the chilling device that contains cinnamic gas after the ethylbenzene dehydrogenation.
Background technology
Styrene is important basic Organic Chemicals, mainly as the raw material of producing synthetic plastic, synthetic rubber and synthetic resin etc.Styrene as polymerization single polymerization monomer in process of production, autohemagglutination very easily in the storage process, in order to prevent or to slow down styrene monomer polymerization in process of production, the cinnamic gas that contains behind the ethylbenzene dehydrogenation reaction need be cooled down fast, usually be cooled to temperature 60-70 ℃ from temperature 110-130 ℃, when temperature is reduced to below 60 ℃, cinnamic polymerization is very slow, thereby can avoid the generation of polymer, so chilling technology just must be in the shortest time, pressure drop with minimum, the minimum water yield is reduced to saturation temperature under the pressure at that time with material temperature.
Chinese patent CN1155650A discloses a kind of chiller, and this chiller comprises a columnar valve jacket.This valve jacket contains styrene gas by a gas access connector with high temperature and links to each other, and links to each other with refrigerator pipe by a gas vent connector, also has a water injector in this valve jacket.Because chiller adopts comb shape distributor, Quench liquid by the atomizing of distributor short tube.This chiller atomizing effect is poor, chill effect is not good enough, because comb shape distributor adopts the uniform and atomizing of aperture, causes aperture easily to stop up.
Chinese patent CN2692614Y discloses a kind of chiller, be the improvement to Chinese patent CN1155650A, in this patent, the Quench distribution of liquid still adopts the calandria distributor, Quench liquid atomizes by atomizer, and the angle of nozzle and main flow direction is 0-60 °.
Chinese patent CN2747222Y discloses a kind of improvement project of chiller, wish the problem that solution chiller aperture or nozzle stop up, its method is that a curved baffle is set before the calandria distributor, avoiding high-temperature gas directly and comb heat exchange and improve the temperature of chilled water, thereby cause the styrene polymerization of the trace that contains in the water and cause the problem aperture that chiller aperture or nozzle stop up or the problem of spray nozzle clogging.
In fact, in industrial production, why so important the Quench of styrene dehydrogenation gas and the stable operation of chiller be, its reason is some: (1) is if the chiller chill effect is bad, then must increase the amount of chilled water, put forward amount with water treatment thereby increased follow-up steam, thereby increased the consumption and the operating cost of water stripping steam; (2) in order to prevent that chiller aperture or nozzle from stopping up, on many commercial plants, chilled water can not operative installations itself process condensate water, and directly use the soft water of outer confession, thereby significantly increased the amount of total process condensate water, thereby increased considerably the consumption and the operating cost of water stripping steam; (3) owing in the Quench system, the mechanism complexity of chiller aperture or nozzle aperture or spray nozzle clogging, reason is many-sided, and chiller stops up in case the chiller obstruction has taken place, then can't long term maintenance device steady production, cause and be forced to stop, then can result in greater loss.
Simultaneously, because the cinnamic gas that contains behind the ethylbenzene dehydrogenation reaction is being adopted in the quick cooling procedure of chiller, also need to separate wherein moisture content and other impurity, and the chilling device of present styrene dehydrogenation gas all is not provided with suitable flow process, containing cinnamic gas and need purify again behind the ethylbenzene dehydrogenation reaction that causes being cooled, not only the consumption of cooling water is big, and chill effect is not remarkable, and increased equipment investment, influenced industrialized production.
The utility model content
The purpose of this utility model is to propose a kind of chilling device of ethylbenzene dehydrogenation gas, to overcome the above-mentioned defective that prior art exists.
The chilling device of the ethylbenzene dehydrogenation gas that the utility model proposes comprises chiller, Quench valve, condenser, gun barrel, pump and cyclone separator;
Described Quench valve is arranged in the chiller, and be connected with the Quench water source, the inlet of described condenser is connected with chiller by pipeline, the liquid phase outlet of described condenser is connected with the inlet of gun barrel, the gaseous phase outlet of condenser is connected with subsequent handling, the outlet of described gun barrel is connected with the inlet of cyclone separator by pump, the oil phase outlet of gun barrel is connected with follow-up rectification working process by pipeline, the light phase export that is arranged on described cyclone separator top is connected with the inlet of gun barrel by pipeline, and the heavy out that is arranged on cyclone separator bottom is connected with follow-up water treatment operation and Quench valve respectively by pipeline.
The utility model is operation like this:
Temperature is 110-130 ℃ a gas after the dehydrogenation reaction, main component is except that steam, be benzene, toluene, ethylbenzene, styrene, material such as hydrogen and methane, be admitted to chiller, the condensed water that with temperature is 30-50 ℃ is simultaneously sent into chiller by the Quench valve, atomizing high-temperature gas back and after the dehydrogenation reaction mixes, fine water droplets after the atomizing is by air-flow evaporation gasification, thereby absorb a large amount of sensible heats, make the air-flow fast cooling, air-flow after the cooling medium that is cooled in condenser is cooled to 40-60 ℃, most steam, benzene, toluene, ethylbenzene and styrene steam are condensed into liquid, flow in the gun barrel, and most incoagulable gas, as hydrogen and methane, and the benzene of equilibrium partial pressure under this temperature, toluene, ethylbenzene, styrene is taken away by follow-up vacuum system, enter the liquid of gun barrel, be separated into water and oil phase, oil phase S9 is sent to follow-up distillation system to be separated, aqueous phase removes the benzene that contains physical dissolution, toluene, ethylbenzene, outside the styrene and other aromatic hydrocarbon, also has a spot of fine oil droplet that does not reach separation, after the pump pressurization, be sent to cyclone separator, under the hypergravity effect that high-speed rotational forms, the fine oil droplet that does not reach separation is separated from water fast with part water and is formed logistics together, be back in the gun barrel, carry out water-oil separating again.All the other major parts of having separated the water of most fine oil droplets are sent to the downstream water treatment process, because oil has separated clean substantially in the water, can save a large amount of water treatment expenses, thereby improved economy, a spot of water is sent to chiller again and is recycled, thereby has avoided adding chilled water.
The beneficial effects of the utility model are: can effectively realize the cold shock that contains cinnamic gas behind the ethylbenzene dehydrogenation reaction, avoid adding chilled water fully, chill effect is remarkable, and reliability stability is high.Handle identical raw material under identical process conditions, comparable traditional equipment reduces condensed water total amount 5～10%, has tangible economic benefit.
Description of drawings
Fig. 1 is the chilling device schematic diagram of ethylbenzene dehydrogenation gas.
Fig. 2 is a Quench valve arrangement schematic diagram.
Fig. 3 is a Quench nozzle structure schematic diagram.
The specific embodiment
Referring to Fig. 1, the chilling device of ethylbenzene dehydrogenation gas of the present utility model comprises chiller 1, Quench valve 2, condenser 3, gun barrel 4, pump 5 and cyclone separator 6;
Described Quench valve 2 is arranged in the chiller 1, and be connected with the Quench water source, the inlet 301 of described condenser 3 is connected with chiller 1 by pipeline, the liquid phase of described condenser 3 outlet 302 is connected with the inlet 403 of gun barrel 4, the gaseous phase outlet 303 of condenser 3 is connected with subsequent handling, the water of described gun barrel 4 outlet 401 is connected with the inlet 601 of cyclone separator 6 by pump 5, the oil phase of gun barrel 4 outlet 402 is connected with follow-up rectification working process by pipeline, the light phase export 602 that is arranged on described cyclone separator 6 tops is connected with the inlet 403 of gun barrel 4 by pipeline, oil water mixture is back in the gun barrel 4, again carry out water-oil separating, the heavy out 603 that is arranged on cyclone separator 6 bottoms is connected with follow-up water treatment operation and Quench valve 2 respectively by pipeline;
Preferably, chiller 1 is provided with 2, two Quench valves 2 of two Quench valves and is connected with the Quench water source by pipeline respectively, and described pipeline is provided with transfer valve 101, so that online switching.
Referring to Fig. 2 and Fig. 3, described Quench valve 2 comprises tubular valve body 7, tubulose spool 8, connector 9, the block valve 10 of both ends open and has the hollow Quench 11 of cavity;
Described tubulose spool 8 is inserted in the tubular valve body 7, two ends extend to respectively outside the tubular valve body 7, one end of described tubulose spool 8 is fixed on an end of described tubular valve body 7 by connector 9, described Quench 11 is fixed on the end of described tubulose spool 8, the cavity of described Quench 11 is connected with described tubulose spool 8, and described block valve 10 is arranged on tubular valve body 7 middle parts.
Referring to Fig. 3, preferred, described Quench 11 comprises Quench head main body 12 and the atomizer 13 with cavity, and atomizer 13 is connected with the cavity of Quench head main body 12;
Further, the quantity of described atomizer 13 is 3-20, optimum 5-9, and can the center symmetric arrangement;
Preferably, the full-size of described Quench 11 splits out it with convenient smoothly less than the internal diameter of valve body 7.
Adopt above-mentioned Quench valve 2, can easily spool be fit into valve body or from valve body, remove, clean thereby the tubulose spool can be split out, and described block valve can be after splitting out spool, closed valve, thus the formation leak point avoided, guaranteed the safe and reliable of device.
Claims (7)
1. the chilling device of ethylbenzene dehydrogenation gas is characterized in that, comprises chiller (1), Quench valve (2), condenser (3), gun barrel (4), pump (5) and cyclone separator (6);
Described Quench valve (2) is arranged in the chiller (1), and be connected with the Quench water source, the inlet (301) of described condenser (3) is connected with chiller (1) by pipeline, the liquid phase outlet (302) of described condenser (3) is connected with the inlet (403) of gun barrel (4), the gaseous phase outlet (303) of condenser (3) is connected with subsequent handling, the water outlet (401) of described gun barrel (4) is connected with the inlet (601) of cyclone separator (6) by pump (5), the oil phase outlet (402) of gun barrel (4) is connected with subsequent handling by pipeline, the light phase export (602) that is arranged on described cyclone separator (6) top is connected with the inlet (403) of gun barrel (4) by pipeline, and the heavy out (603) that is arranged on cyclone separator (6) bottom is connected with follow-up operation and Quench valve (2) respectively by pipeline.
2. the chilling device of ethylbenzene dehydrogenation gas according to claim 1 is characterized in that, chiller (1) is provided with two Quench valves (2), and two Quench valves (2) are connected with the Quench water source by pipeline respectively, and described pipeline is provided with transfer valve (101).
3. the chilling device of ethylbenzene dehydrogenation gas according to claim 1, it is characterized in that, described Quench valve (2) comprises tubular valve body (7), tubulose spool (8), connector (9), the block valve (10) of both ends open and has the hollow Quench head (11) of cavity;
Described tubulose spool (8) is inserted in the tubular valve body (7), two ends extend to respectively outside the tubular valve body (7), one end of described tubulose spool (8) is fixed on an end of described tubular valve body (7) by connector (9), described Quench head (11) is fixed on the end of described tubulose spool (8), the cavity of described Quench head (11) is connected with described tubulose spool (8), and described block valve (10) is arranged on tubular valve body (7) middle part.
4. the chilling device of ethylbenzene dehydrogenation gas according to claim 3 is characterized in that, described Quench head (11) comprises Quench head main body (12) and the atomizer (13) with cavity, and atomizer (13) is connected with the cavity of Quench head main body (12).
5. the chilling device of ethylbenzene dehydrogenation gas according to claim 4 is characterized in that, the quantity of described atomizer (13) is 3-20.
6. the chilling device of ethylbenzene dehydrogenation gas according to claim 5 is characterized in that, the quantity of described atomizer (13) is 5-9, the center symmetric arrangement.
7. the chilling device of ethylbenzene dehydrogenation gas according to claim 5 is characterized in that, the full-size of described Quench head (11) is less than the internal diameter of valve body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201516648U CN201262520Y (en) | 2008-08-05 | 2008-08-05 | Chilling apparatus for ethylbenzene dehydrogenation gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201516648U CN201262520Y (en) | 2008-08-05 | 2008-08-05 | Chilling apparatus for ethylbenzene dehydrogenation gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262520Y true CN201262520Y (en) | 2009-06-24 |
Family
ID=40808996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201516648U Expired - Lifetime CN201262520Y (en) | 2008-08-05 | 2008-08-05 | Chilling apparatus for ethylbenzene dehydrogenation gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262520Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537266A (en) * | 2017-10-10 | 2018-01-05 | 北京神雾电力科技有限公司 | A kind of dust pelletizing system and dust removal method of high temperature pyrolysis gas |
-
2008
- 2008-08-05 CN CNU2008201516648U patent/CN201262520Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537266A (en) * | 2017-10-10 | 2018-01-05 | 北京神雾电力科技有限公司 | A kind of dust pelletizing system and dust removal method of high temperature pyrolysis gas |
| CN107537266B (en) * | 2017-10-10 | 2023-05-05 | 北京恒丰亚业科技发展有限公司 | Dust removal system and dust removal method for pyrolysis gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101353286B (en) | Non-copious cooling lower carbon number hydrocarbons separation method containing light gas | |
| CN204589029U (en) | Separation of olefins thermal-pump unit | |
| CN110591751A (en) | Improved process of light hydrocarbon recovery technology | |
| CN201262520Y (en) | Chilling apparatus for ethylbenzene dehydrogenation gas | |
| CN103122261A (en) | Method for eliminating naphthaline in high-temperature coke-oven gas | |
| CN101153231B (en) | Multi-reaction kettle spray strengthening gas hydrate continuously producing device and process sequence | |
| CN110553463A (en) | Energy-saving optimization system and process of HyCO cryogenic separation device | |
| CN102516007A (en) | Process and device for processing and preparing hydrocarbon by utilizing liquefied gas | |
| US20240207755A1 (en) | Low-pressure drop ethylbenzene evaporator and energy-saving process for ethylbenzene vaporization in styrene dehydrogenation reaction system | |
| CN201255586Y (en) | Chiller | |
| CN204723786U (en) | Three six sections, tower differential distillation energy conserving systems | |
| CN201850251U (en) | Oilfield associated gas membrane-process light hydrocarbon recovery system | |
| CN210625120U (en) | Energy-saving optimization system of HyCO cryogenic separation device | |
| CN203845829U (en) | Ammonia absorption device for ammonia tank purge gas | |
| CN203144358U (en) | Equipment for removing naphthalene in high-temperature coke-oven gas | |
| CN202039031U (en) | Skid-mounted middle-small sized light hydrocarbon extracting system employing vortex tube for secondary refrigeration | |
| CN201670808U (en) | Energy saving device using low-temperature waste water to vaporize propylene depolymerized oil column feedstock in a step way | |
| CN110330018B (en) | Device for preparing dry ice and separating ethylene by using LNG cold energy and working method | |
| CN103755508A (en) | Device for processing preparation of hydrocarbon by utilizing liquefied gas | |
| CN202359042U (en) | Device for utilizing liquefied gas to process and produce hydrocarbon | |
| CN203464774U (en) | Condenser used for producing meropenem branched chains | |
| CN206375840U (en) | Styrene production energy-saving device | |
| CN112239390A (en) | Ethylene cryogenic recovery system | |
| CN111924915A (en) | Negative pressure multiple-effect evaporation treatment salt-containing sewage system based on Venturi effect | |
| CN205205054U (en) | Refined system of liquefied gas of reboiler in middle of using |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090624 |
|
| CX01 | Expiry of patent term |