CN204841626U - Recycle and regeneration agent temperature controller - Google Patents
Recycle and regeneration agent temperature controller Download PDFInfo
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- CN204841626U CN204841626U CN201520422404.XU CN201520422404U CN204841626U CN 204841626 U CN204841626 U CN 204841626U CN 201520422404 U CN201520422404 U CN 201520422404U CN 204841626 U CN204841626 U CN 204841626U
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- temperature controller
- circular regeneration
- cooling medium
- regeneration agent
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Abstract
The utility model provides a recycle and regeneration agent temperature controller, it includes the inside heat exchange tube that sets up of temperature controller casing and casing, the heat exchange tube is inside and outside bushing type, and the inner tube is the coolant admission pipe, and the outer tube is coolant heat transfer sleeve pipe, set up fluidization wind inlet port and fluidization air distributor in the casing lower part, the bottom sets up the regenerant outlet pipe, set temperature meter on the regenerant outlet pipe. This temperature controller can control access to the regenerant temperature of reactor according to reactor temperature, avoids the influence of regenerant high temperature to the reaction.
Description
Technical field
The utility model relates to a kind of circular regeneration agent temperature controller, be applicable to fluid bed methanol-to-olefins or aromatic hydrocarbons technology to the control of circular regeneration agent temperature entering reactor, be specially adapted to methanol-to-olefins, the temperature of aromatic hydrocarbons course of reaction circular regeneration agent controls, a kind of circular regeneration agent temperature controller of purification.
Background technology
Methyl alcohol producing olefinic hydrocarbons or aromatic hydrocarbons etc. are the important process technology of Coal Chemical Industry, obtain the great attention of various countries.Methyl alcohol producing olefinic hydrocarbons or aromatic hydrocarbons reaction adopt gas fluidized-bed reaction mostly, and course of reaction is exothermic reaction, and reaction temperature is generally 480 DEG C to 500 DEG C, and catalyst regeneration temperature is generally 650 DEG C to 700 DEG C.Catalyst is continuous circulation regeneration between reactor and regenerator.Because reaction and regeneration are all exothermic process, circular regeneration agent is not needed to provide heat for reacting.Regenerant recycle amount does not depend on that reaction heat balances, but depends on the selected value to spent agent and regenerative agent carbon difference.
In Practical Project device, the regenerative agent temperature entering reactor more than 650 DEG C, far above reaction temperature.These high temperature regeneration agent enter reactor and form high-temperature region, react unfavorable.The carbon containing of catalyst, activity, non-uniform temperature do not produce materially affect to catalyst regeneration, reason is that catalyst regeneration does not produce object product, char oxidation can only produce carbonoxide, and reaction time prolongation does not also bring material impact, but catalyst temperature is uneven serious on reaction impact.Reactor product is seriously subject to the reaction time, the impact of the reaction conditions such as temperature.
Methanol-to-olefins device reaction medium molecule amount is little, and by the requirement of large-scale production, device inlet amount is greater than 200t/h usually, and during employing fluidized-bed reactor, reactor diameter is larger.But the catalyst of different temperatures realizes (fluidization research proves, the horizontal direction mixing of catalyst mixes the many of difficulty compared with vertical direction) very important being not easy of mixed uniformly problem in fluid bed of reacting.Engineering design perhaps can adopt the way of FCC apparatus, increase the catalyst mix that catalyst mix distributing equipment accelerates different temperatures, but because catalyst mix distributor all will increase pressure drop, and generally need gas phase media to carry realization, the energy consumption of catalyst breakage and circulation must be increased so again.
Summary of the invention
The purpose of this utility model is to provide a kind of circular regeneration agent Temperature-controlled appliance, this equipment carries out temperature control at regenerative agent in reactor cycles course of conveying, the regenerative agent temperature entering reactor is made to meet the requirement of reactor temperature, solve the too high impact on reaction of regenerative agent temperature, improve the selective of reactor product.
For solving the problem, the technical solution of the utility model is:
A kind of circular regeneration agent temperature controller, it comprises the heat exchanger tube of temperature controller housing and enclosure interior setting, heat exchanger tube is inner-outer sleeve tubular type, interior pipe is that cooling medium enters pipe, outer tube is cooling medium heat exchange sleeve, heat exchanger tube upper end extends laterally from housing, and form cooling medium entrance and cooling medium outlet, heat exchanger tube bottom arranges fixed guide frame; Arrange fluidized wind inlet port and fluidizing gas distributor in lower housing portion, bottom arranges regenerative agent outlet, set temperature meter on regenerative agent outlet.
Regenerative agent enters reactor through conveyance conduit from regenerator, and this circulation conveyance conduit arranges the temperature controller to circular regeneration agent, and this circular regeneration agent temperature controller is heat exchange tubular type; Regenerative agent enters circular regeneration agent temperature controller and flows downward outside cooling medium heat exchange sleeve, cooling medium enters cooling medium from cooling medium entrance and enters pipe, the fluidizing gas distributor being positioned at heat exchanger tube bottom is sent steam or nitrogen or air and is made regenerative agent fluidisation and to the heat transfer of cooling medium heat exchange sleeve, flowed out by the cooling medium heated through cooling medium heat exchange sleeve from cooling medium outlet; The regenerative agent temperature entering reactor is regulated by the gas flow entered, increase the gas medium amount entering temperature controller and can reduce regenerative agent temperature, at reactor or circular regeneration agent carrier pipe regenerative agent temperature controller downstream set temperature meter (thermocouple), the control valve entered on reactor regenerative agent temperature controller gas medium pipeline is controlled by this temperature, thus controlling the heat output of regenerant recycle pipe temperature controller, the regenerative agent realizing entering reactor meets the temperature conditions of reaction needed.
A cooling medium heat exchange sleeve for circular regeneration agent temperature controller, can be set to light pipe, also can be set to finned tube, is specifically determined by heat-obtaining amount.
This circular regeneration agent conveyance conduit can also arrange the stripper that regenerative agent carries gas simultaneously, and stripper internals arranges stripper displacement elements, and bottom arranges stripped vapor distributor and stripped vapor inlet port.
Regenerative agent stripper is arranged on the below of circular regeneration agent temperature controller.
Regenerative agent stripper can be arranged on the top of circular regeneration agent temperature controller, and now circular regeneration agent temperature controller uses steam fluidisation and regulates regenerative agent temperature.
Circular regeneration agent temperature controller of the present utility model, compared with prior art, has following beneficial effect:
Under the condition not affecting regenerant recycle amount, make the regenerated catalyst temperature entering reactor consistent with catalyst in reactor temperature, reduce the impact of regenerative agent temperature on reaction.The on-condensible gas that reactor brought into by regenerated catalyst can also be limited.
Accompanying drawing explanation
Fig. 1-Fig. 6 is circular regeneration agent temperature controller structure chart, particularly:
Fig. 1: circular regeneration agent temperature controller structural representation;
Fig. 2: the system and device schematic diagram at circular regeneration agent temperature controller place;
Fig. 3: cooling medium heat exchange sleeve structural representation;
A kind of structure of A-A sectional view in Fig. 4: Fig. 3;
The another kind of structure of A-A sectional view in Fig. 5: Fig. 3;
Fig. 6: bottom arranges the circular regeneration agent temperature controller of stripper;
In figure: 1, regenerator, 2, reactor, 3, circular regeneration agent temperature controller, 4, regenerative agent stripper, 5, regenerative agent carrier pipe, 6, gas medium carrier pipe, 7, flowmeter, 8, control valve, 9, circular regeneration agent, 11, external warmer, 21, thermometer (thermocouple), 31, fluidizing gas distributor, 32, cooling medium heat exchange sleeve, 32A, light pipe, 32B, finned tube, 33, regenerative agent outlet, 34, fluidized wind inlet port, 35, cooling medium enters pipe, 36, temperature controller housing, 37, fixed guide frame, 38, thermometer (thermocouple), 39A, cooling medium entrance, 39B, cooling medium exports, 41, stripped vapor distributor, 42, stripper displacement elements, 43, stripped vapor inlet port, 44, stripper housing.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is intended to help reader understanding's feature of the present utility model and essence, but the drawings and specific embodiments content do not limit of the present utility model can practical range.
As shown in Figure 1, a kind of circular regeneration agent temperature controller, it comprises the heat exchanger tube of temperature controller housing 36 and the setting of housing 36 inside, heat exchanger tube is inner-outer sleeve tubular type, interior pipe is that cooling medium enters pipe 35, and outer tube is cooling medium heat exchange sleeve 32, and heat exchanger tube upper end extends laterally from housing 36, form cooling medium entrance 39A and cooling medium outlet 39B, heat exchanger tube bottom arranges fixed guide frame 37; Arrange fluidized wind inlet port 34 and fluidizing gas distributor 31 in housing 36 bottom, bottom arranges regenerative agent outlet 33, set temperature meter 38 on regenerative agent outlet 33.
As shown in Figure 1, 2, circular regeneration agent 9 enters reactor 2 through regenerative agent carrier pipe 5 from regenerator 1, and this regenerative agent carrier pipe 5 arranges the temperature controller 3 to circular regeneration agent, and this circular regeneration agent temperature controller 3 is heat exchange tubular type; Flow downward outside cooling medium heat exchange sleeve 32 after circular regeneration agent 9 enters temperature controller 3, cooling medium enters cooling medium from cooling medium entrance 39A and enters pipe 35, the fluidizing gas distributor 31 being positioned at heat exchanger tube bottom sends steam or nitrogen or air to be made regenerative agent fluidisation and conducts heat to cooling medium heat exchange sleeve 32, is flowed out through cooling medium heat exchange sleeve 32 by the cooling medium heated from cooling medium outlet 39B; The regenerative agent temperature entering reactor 2 is regulated by the gas flow entered, increase the gas medium amount entering circular regeneration agent temperature controller 3 and can reduce regenerative agent temperature, the fluidized gas scale of construction entering regenerative agent temperature controller 3 is controlled as index by the temperature of reactor 2, the regenerative agent temperature entering reactor 2 is made to meet the requirement of temperature in reactor 2, solve the too high impact on reaction of regenerative agent temperature, improve the selective of reactor product.
Further, steam or nitrogen or air enter in the fluidizing gas distributor 31 of regenerative agent temperature controller 3 by gas medium carrier pipe 6, gas medium carrier pipe 6 arranges flowmeter 7 and control valve 8, at reactor 2 or circular regeneration agent carrier pipe 5 regenerative agent temperature controller 3 downstream set temperature meter (thermocouple) 21, 38, the control valve 8 entered on regenerative agent temperature controller 3 gas medium carrier pipe 6 is controlled by this temperature, by the control to this control valve 8, regulate the fluidized gas scale of construction entering regenerative agent temperature controller 3, thus regulate the heat exchange amount of regenerative agent 9 and cooling medium heat exchange sleeve 32, the regenerative agent realizing entering reactor 2 meets the temperature conditions of reaction needed.
As shown in Fig. 3,4,5, a kind of cooling medium heat exchange sleeve 32 of circular regeneration agent temperature controller, can be set to light pipe 32A, also can be set to finned tube 32B, specifically be determined by heat-obtaining amount.
As shown in Figure 6, this circular regeneration agent carrier pipe 5 can also be arranged simultaneously the stripper 4 that displacement regenerative agent carries gas, regenerative agent stripper 4 inside arranges stripper displacement elements 42, bottom arranges stripped vapor distributor 41 and stripped vapor inlet port 43, controls Srteam Stripping effect by the quantity entering steam.
Regenerative agent stripper 4 is arranged on the below of circular regeneration agent temperature controller 3.
Regenerative agent stripper 4 can be arranged on the top of circular regeneration agent temperature controller 3, and now circular regeneration agent temperature controller 3 uses steam fluidisation and regulates regenerative agent temperature.
Claims (4)
1. a circular regeneration agent temperature controller, it is characterized in that, it comprises the heat exchanger tube of temperature controller housing (36) and the setting of housing (36) inside, heat exchanger tube is inner-outer sleeve tubular type, interior pipe is that cooling medium enters pipe (35), and outer tube is cooling medium heat exchange sleeve (32), and heat exchanger tube upper end extends laterally from housing (36), form cooling medium entrance (39A) and cooling medium outlet (39B), heat exchanger tube bottom arranges fixed guide frame (37); Arrange fluidized wind inlet port (34) and fluidizing gas distributor (31) in housing (36) bottom, bottom arranges regenerative agent outlet (33), the upper set temperature meter (38) of regenerative agent outlet (33).
2. circular regeneration agent temperature controller as claimed in claim 1, is characterized in that, cooling medium heat exchange sleeve (32), is set to light pipe (32A) or finned tube (32B), is specifically determined by heat-obtaining amount.
3. circular regeneration agent temperature controller as claimed in claim 1, it is characterized in that, this circular regeneration agent carrier pipe (5) is arranged simultaneously the stripper (4) that displacement regenerative agent carries gas, regenerative agent stripper (4) inside arranges stripper displacement elements (42), bottom arranges stripped vapor distributor (41) and stripped vapor inlet port (43), controls Srteam Stripping effect by the quantity entering steam; Regenerative agent stripper (4) is arranged on the below of circular regeneration agent temperature controller (3).
4. circular regeneration agent temperature controller as claimed in claim 3, it is characterized in that, regenerative agent stripper (4) is arranged on the top of circular regeneration agent temperature controller (3), and now circular regeneration agent temperature controller (3) uses steam fluidisation and regulates regenerative agent temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520422404.XU CN204841626U (en) | 2015-06-18 | 2015-06-18 | Recycle and regeneration agent temperature controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520422404.XU CN204841626U (en) | 2015-06-18 | 2015-06-18 | Recycle and regeneration agent temperature controller |
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| CN204841626U true CN204841626U (en) | 2015-12-09 |
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| CN201520422404.XU Active CN204841626U (en) | 2015-06-18 | 2015-06-18 | Recycle and regeneration agent temperature controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879925A (en) * | 2016-05-09 | 2016-08-24 | 石宝珍 | Combined catalyst cooler |
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2015
- 2015-06-18 CN CN201520422404.XU patent/CN204841626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879925A (en) * | 2016-05-09 | 2016-08-24 | 石宝珍 | Combined catalyst cooler |
| CN105879925B (en) * | 2016-05-09 | 2018-08-21 | 石宝珍 | A kind of combination catalyst cooler |
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