CN110449095A - The emergency termination agent method for implanting of turbine impeller reactor - Google Patents
The emergency termination agent method for implanting of turbine impeller reactor Download PDFInfo
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- CN110449095A CN110449095A CN201810426674.6A CN201810426674A CN110449095A CN 110449095 A CN110449095 A CN 110449095A CN 201810426674 A CN201810426674 A CN 201810426674A CN 110449095 A CN110449095 A CN 110449095A
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- Prior art keywords
- turbine impeller
- terminator
- reactor
- implanting
- termination agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The present invention relates to a kind of emergency termination agent method for implanting of turbine impeller reactor, it mainly solves the reactor terminator injection phase with turbine impeller in the prior art and amount is uncertain, cause after injection terminator to be distributed in reaction kettle bad, terminates effect the problem of cannot ensureing.The present invention by using a kind of turbine impeller reactor emergency termination agent method for implanting, low leakage sealed service check is carried out using low leakage sealed performance inspection device, the low leakage sealed performance inspection device includes that the technical solution for simulating working condition system, seal assembly test station and leak detection system preferably solves the above problem, be can be used in the emergency termination agent injection of turbine impeller reactor.
Description
Technical field
The present invention relates to a kind of emergency termination agent method for implanting of turbine impeller reactor.
Background technique
In Chemical Manufacture, quite a few accident is caused due to runaway reaction, leads to runaway reaction accident
There are many reason, such as material proportion is improper, cooling failure, operation error.Runaway reaction in order to prevent, reactor design have more
Kind safeguard procedures, such as alarm, safety interlocking, emergency discharge, urgent discharging and emergency termination.The opinion of preceding four kinds of measures is discussed
Text is more, provides solution abundant, however discusses that the paper of emergency termination is relatively fewer.
The prior art focuses on the selection of emergency termination agent, analyses in depth to additional amount, the adding manner of emergency termination agent
It is less.Xie Jiamin (petrochemical industry automation, full density polythene device reaction termination system, 2016,1:18) etc. discusses complete
The reaction terminating system of density polyethylene device, discusses 4 kinds of mode of termination of full density polythene device, which is stream
Dynamic bed form, terminator injection can be uniformly mixed in the duct with flowing, and injection mode is relatively simple.Open training equality (Zhejiang
Chemical industry, the shallow application for discussing reaction terminating agent technology) discuss reaction terminating technology in the application of heavy oil catalytically cracking equipment, emphatically
Discuss influence of the terminator injection rate to distribution of reaction products.These researchs are not related to to terminator injection rate and injection position
That sets considers.
Currently, using the reaction kettle of turbine impeller still using more in Chemical Manufacture, especially in the polymerization
It is more common.Most of researcher does not recognize that the ineffective and hot localised points of the uneven caused termination of terminator mixing are asked
Topic, is not simulated and is calculated using stringent flow field model, the injection phase of terminator is more random with injection rate, does not have
Have by strictly proving, to also not can guarantee termination effect necessarily.
Summary of the invention
The technical problem to be solved by the present invention is to the reactor terminators in the prior art with turbine impeller to inject position
It sets uncertain with amount, causes after injection terminator to be distributed in reaction kettle bad, terminate the problem of effect cannot ensure, provide
A kind of emergency termination agent method for implanting of new turbine impeller reactor has the reactor terminator note with turbine impeller
Enter position and amount determines, terminator is distributed good, the good advantage of termination effect in reaction kettle.
To solve the above problems, The technical solution adopted by the invention is as follows: a kind of urgent end of turbine impeller reactor
Only agent method for implanting, setting terminator injects pipeline on the reactor with turbine impeller, and pipeline at least divides two-way to enter
Reactor, passes to reactor head all the way, and another way passes to reactor bottom agitator arm outside；Terminator injects on pipeline
Long-range stop valve is set, establishes interlock connection with reaction temperature, after reaction temperature is more than set temperature, is beaten by automatically controlling
Kaiyuan City's journey stop valve, the desired amount of terminator is injected into reactor.
In above-mentioned technical proposal, it is preferable that automatically control and use collecting and distributing control system DCS or programmable logic controller (PLC)
PLC is controlled.
In above-mentioned technical proposal, it is preferable that dynamic control is controlled using programmable logic controller (PLC) PLC.
In above-mentioned technical proposal, it is preferable that the injection of terminator passes through pressure difference or pump driving.
In above-mentioned technical proposal, it is preferable that terminator additional amount should be the 2 times or more of minimum amount, but should not excessively lead
Reactor content is caused to expire kettle.
In above-mentioned technical proposal, it is preferable that pass to reactor head and pass to reactor bottom agitator arm outside
The ratio between terminator mass flow is 1:1-1:4.
In above-mentioned technical proposal, it is preferable that in order to ensure the mass flow ratio of terminator injection, pipeline resistance should be comprehensively considered
Power, the flow behavior of fluid design suitable caliber.
In above-mentioned technical proposal, it is preferable that turbine impeller is Rushton turbine impeller or oblique leaf formula turbine stirring
Paddle.
In above-mentioned technical proposal, it is preferable that the reactor is reaction kettle, including reactor main body, stirring motor, turbine
Agitating paddle, collet, baffle, terminator inlet.
This patent can make terminator quickly and mix in reaction kettle completely, other injection modes is avoided to lead to terminator
Mixing is uneven in a kettle, thus there are hot localised points, can not effective stopped reaction the problems such as, avoid flying for reaction kettle comprehensively
Temperature achieves preferable technical effect.
Detailed description of the invention
Fig. 1 is that schematic diagram is injected in the emergency termination agent of turbine impeller reaction kettle；
In Fig. 1,1, terminator charging；2, collet；3, baffle；4, agitating paddle；5, it discharges；6, stirring motor；
Fig. 2 is temperature field figure of the terminator when reaction kettle top is added；
Fig. 3 is temperature field figure of the terminator when reactor bottom is added；
Fig. 4 is temperature field figure of the terminator when reaction kettle top and bottom are added simultaneously；
Fig. 5 is the temperature field figure of the reaction kettle with oblique leaf formula turbine impeller.
The present invention will be further described below by way of examples, but is not limited only to the present embodiment.
Specific embodiment
[embodiment 1]
A kind of emergency termination agent method for implanting of turbine impeller reactor, the flow field when operating normally, in reaction kettle
As shown in Figure 1, reaction kettle is divided into two regions up and down by turbine impeller, upper regional fluid is from stirrer paddle along kettle wall Xiang Shangliu
It is dynamic, after flow to mixing paddle axle；Lower area fluid flows downward from stirrer paddle along kettle wall, after flow to mixing paddle axle.
When carrying out exothermic reaction in a kettle, if there are abnormal conditions, runaway reaction may cause, part is reacted at this time
Need to be added emergency termination agent, stopped reaction carries out, to achieve the purpose that avoid serious over-temp and over-pressure.It is anti-in order to effectively stop
Answer, addition time of terminator, additional amount and coal addition position (influencing the dispersion effect of terminator in a kettle) be it is crucial because
Element.
Terminator injection pipeline is arranged in the present invention on reaction kettle, and pipeline divides two-way to enter reaction kettle, passes to reaction all the way
Kettle top portion passes to reactor bottom agitator arm outside all the way.The injection of terminator passes through pressure differential.Terminator injection pipe
Long-range stop valve is set on line, establishes interlock connection with temperature of reaction kettle, after temperature of reaction kettle reaches set temperature, by certainly
The stop valve for being located at terminator general pipeline is opened in dynamic control, and quantitative terminator is injected into reaction kettle.It automatically controls using collecting and distributing
Formula control system (DCS).
The selection of terminator and minimum amount should be determined that terminator additional amount should be minimum amount by special test
2 times or more, but reaction kettle material should not excessively be caused to expire kettle.
It is 1:1 that top, which is added, with the flow-ratio control that bottom terminator material is added.In order to ensure flow-rate ratio, it should integrate and examine
Consider the resistance of ducting, the flow behavior of fluid, to design suitable caliber.
For the reaction kettle using Rushton turbine impeller, in such a way that top and bottom feeds simultaneously, bottom adds
Material is more than top-feed, while total charging control is higher than terminator minimum amount (theoretical amount) 2 times or more, and analog result is shown in figure
4.As it can be seen that terminator good mixing in reaction kettle, reactor temperature is more uniform, high-temperature region using this kind of feeding manner
It is effectively suppressed, can ensure the safety of reaction kettle.
[embodiment 2]
A kind of emergency termination agent method for implanting of turbine impeller reactor, the flow field when operating normally, in reaction kettle
As shown in Figure 1, reaction kettle is divided into two regions up and down by turbine impeller, upper regional fluid is from stirrer paddle along kettle wall Xiang Shangliu
It is dynamic, after flow to mixing paddle axle；Lower area fluid flows downward from stirrer paddle along kettle wall, after flow to mixing paddle axle.
When carrying out exothermic reaction in a kettle, if there are abnormal conditions, runaway reaction may cause, part is reacted at this time
Need to be added emergency termination agent, stopped reaction carries out, to achieve the purpose that avoid serious over-temp and over-pressure.It is anti-in order to effectively stop
Answer, addition time of terminator, additional amount and coal addition position (influencing the dispersion effect of terminator in a kettle) be it is crucial because
Element.
Terminator injection pipeline is arranged in the present invention on reaction kettle, and pipeline divides two-way to enter reaction kettle, passes to reaction all the way
Kettle top portion passes to reactor bottom agitator arm outside all the way.The injection of terminator passes through pressure differential.Terminator injection pipe
Long-range stop valve is set on line, establishes interlock connection with temperature of reaction kettle, after temperature of reaction kettle reaches set temperature, by certainly
The stop valve for being located at terminator general pipeline is opened in dynamic control, and quantitative terminator is injected into reaction kettle.Automatic control is programmable
Logic controller (PLC).
The selection of terminator and minimum amount should be determined that terminator additional amount should be minimum amount by special test
2 times or more, but reaction kettle material should not excessively be caused to expire kettle.
It is 1:4 that top, which is added, with the flow-ratio control that bottom terminator material is added.In order to ensure flow-rate ratio, it should integrate and examine
Consider the resistance of ducting, the flow behavior of fluid, to design suitable caliber.
For the reaction kettle using oblique leaf formula turbine impeller, add simultaneously from top addition, bottom addition and upper bottom
The temperature field added is as shown in Figure 5.As it can be seen that terminator mixing is added for oblique leaf formula turbine impeller, while from top and bottom
Effect is best, can control effectively to temperature.
[embodiment 3]
A kind of emergency termination agent method for implanting of turbine impeller reactor, the flow field when operating normally, in reaction kettle
As shown in Figure 1, reaction kettle is divided into two regions up and down by turbine impeller, upper regional fluid is from stirrer paddle along kettle wall Xiang Shangliu
It is dynamic, after flow to mixing paddle axle；Lower area fluid flows downward from stirrer paddle along kettle wall, after flow to mixing paddle axle.
When carrying out exothermic reaction in a kettle, if there are abnormal conditions, runaway reaction may cause, part is reacted at this time
Need to be added emergency termination agent, stopped reaction carries out, to achieve the purpose that avoid serious over-temp and over-pressure.It is anti-in order to effectively stop
Answer, addition time of terminator, additional amount and coal addition position (influencing the dispersion effect of terminator in a kettle) be it is crucial because
Element.
Terminator injection pipeline is arranged in the present invention on reaction kettle, and pipeline divides two-way to enter reaction kettle, passes to reaction all the way
Kettle top portion passes to reactor bottom agitator arm outside all the way.The injection of terminator passes through pump driving.Terminator injects pipeline
The upper long-range stop valve of setting, establishes interlock connection with temperature of reaction kettle, after temperature of reaction kettle reaches set temperature, by automatic
The stop valve for being located at terminator general pipeline is opened in control, and quantitative terminator is injected into reaction kettle.It automatically controls and is patrolled to be programmable
It collects controller (PLC).
The selection of terminator and minimum amount should be determined that terminator additional amount should be minimum amount by special test
2 times or more, but reaction kettle material should not excessively be caused to expire kettle.
It is 1:2 that top, which is added, with the flow-ratio control that bottom terminator material is added.In order to ensure flow-rate ratio, it should integrate and examine
Consider the resistance of ducting, the flow behavior of fluid, to design suitable caliber.
For the reaction kettle using oblique leaf formula turbine impeller, add simultaneously from top addition, bottom addition and upper bottom
The temperature field added is as shown in Figure 5.As it can be seen that terminator mixing is added for oblique leaf formula turbine impeller, while from top and bottom
Effect is best, can control effectively to temperature.
[embodiment 4]
A kind of emergency termination agent method for implanting of turbine impeller reactor, the flow field when operating normally, in reaction kettle
As shown in Figure 1, reaction kettle is divided into two regions up and down by turbine impeller, upper regional fluid is from stirrer paddle along kettle wall Xiang Shangliu
It is dynamic, after flow to mixing paddle axle；Lower area fluid flows downward from stirrer paddle along kettle wall, after flow to mixing paddle axle.
When carrying out exothermic reaction in a kettle, if there are abnormal conditions, runaway reaction may cause, part is reacted at this time
Need to be added emergency termination agent, stopped reaction carries out, to achieve the purpose that avoid serious over-temp and over-pressure.It is anti-in order to effectively stop
Answer, addition time of terminator, additional amount and coal addition position (influencing the dispersion effect of terminator in a kettle) be it is crucial because
Element.
Terminator injection pipeline is arranged in the present invention on reaction kettle, and pipeline divides two-way to enter reaction kettle, passes to reaction all the way
Kettle top portion passes to reactor bottom agitator arm outside all the way.The injection of terminator passes through pump driving.Terminator injects pipeline
The upper long-range stop valve of setting, establishes interlock connection with temperature of reaction kettle, after temperature of reaction kettle reaches set temperature, by automatic
The stop valve for being located at terminator general pipeline is opened in control, and quantitative terminator is injected into reaction kettle.It automatically controls and is patrolled to be programmable
It collects controller (PLC).
The selection of terminator and minimum amount should be determined that terminator additional amount should be minimum amount by special test
2 times or more, but reaction kettle material should not excessively be caused to expire kettle.
It is 1:3 that top, which is added, with the flow-ratio control that bottom terminator material is added.In order to ensure flow-rate ratio, it should integrate and examine
Consider the resistance of ducting, the flow behavior of fluid, to design suitable caliber.
For the reaction kettle using oblique leaf formula turbine impeller, add simultaneously from top addition, bottom addition and upper bottom
The temperature field added is as shown in Figure 5.As it can be seen that terminator mixing is added for oblique leaf formula turbine impeller, while from top and bottom
Effect is best, can control effectively to temperature.
[comparative example 1]
On reaction kettle described in embodiment 1, for the reaction kettle using Rushton turbine impeller, if reacting
The case where leading to temperature runaway out of control, when terminator is when top is added, flow field is as shown in Figure 2.As can be seen that on reaction kettle top and
There is high-temperature region respectively in lower part, shows that terminator is unable to fine dispersion to the top and bottom of reaction kettle.
[comparative example 2]
On reaction kettle described in embodiment 1, for the reaction kettle using Rushton turbine impeller, if reacting
The case where leading to temperature runaway out of control, when terminator is when bottom is added, flow field is as shown in Figure 3.As it can be seen that in reactor bottom into termination
When agent, the top of reaction kettle and agitating shaft show that terminator good cannot be dispersed to top and stirring nearby there are high-temperature region
Near axis.
Claims (9)
1. a kind of emergency termination agent method for implanting of turbine impeller reactor is arranged on the reactor with turbine impeller
Terminator injects pipeline, and pipeline at least divides two-way to enter reactor, passes to reactor head all the way, and another way passes to reactor bottom
Portion agitator arm outside；Long-range stop valve is set on terminator injection pipeline, establishes interlock connection with reaction temperature, works as reaction
Temperature opens long-range stop valve by automatically controlling, the desired amount of terminator is injected into reactor more than after set temperature.
2. the emergency termination agent method for implanting of turbine impeller reactor according to claim 1, it is characterised in that automatic control
System is controlled using collecting and distributing control system DCS or programmable logic controller (PLC) PLC.
3. the emergency termination agent method for implanting of turbine impeller reactor according to claim 2, it is characterised in that automatic control
System is controlled using programmable logic controller (PLC) PLC.
4. the emergency termination agent method for implanting of turbine impeller reactor according to claim 1, it is characterised in that terminator
Injection by pressure difference or pump driving.
5. the emergency termination agent method for implanting of turbine impeller reactor according to claim 1, it is characterised in that terminator
Additional amount should be the 2 times or more of minimum amount, but reactor content should not excessively be caused to expire kettle.
6. the emergency termination agent method for implanting of turbine impeller reactor according to claim 1, it is characterised in that pass to anti-
Answering at the top of device and pass to the ratio between terminator mass flow of reactor bottom agitator arm outside is 1:1-1:4.
7. the emergency termination agent method for implanting of turbine impeller reactor according to claim 6, it is characterised in that in order to true
The mass flow ratio for protecting terminator injection, should comprehensively consider the resistance of ducting, the flow behavior of fluid designs suitable caliber.
8. the emergency termination agent method for implanting of turbine impeller reactor according to claim 1, it is characterised in that turbine stirs
Mixing paddle is Rushton turbine impeller or oblique leaf formula turbine impeller.
9. the emergency termination agent method for implanting of turbine impeller reactor according to claim 1, it is characterised in that described anti-
Answering device is reaction kettle, including reactor main body, stirring motor, turbine impeller, collet, baffle, terminator inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426674.6A CN110449095A (en) | 2018-05-07 | 2018-05-07 | The emergency termination agent method for implanting of turbine impeller reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426674.6A CN110449095A (en) | 2018-05-07 | 2018-05-07 | The emergency termination agent method for implanting of turbine impeller reactor |
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| CN110449095A true CN110449095A (en) | 2019-11-15 |
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Citations (7)
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| AU1234099A (en) * | 1997-11-11 | 1999-05-31 | Basf Aktiengesellschaft | Device for feeding a fluid into a container |
| CN101619112A (en) * | 2008-07-03 | 2010-01-06 | 中国石油化工股份有限公司 | Method and device for preventing olefine polymerization reactor of gas phase fluidized bed from caking |
| CN203591791U (en) * | 2013-12-05 | 2014-05-14 | 南京美星鹏科技实业有限公司 | Terminating device for acrylic resin |
| CN203916657U (en) * | 2014-05-15 | 2014-11-05 | 吴持跃 | Chemical reaction kettle feed arrangement |
| CN105233775A (en) * | 2015-09-11 | 2016-01-13 | 中国石油化工股份有限公司 | Method for rapidly and uniformly adding diluent and inhibitor during stirring failure |
| CN106125691A (en) * | 2016-08-04 | 2016-11-16 | 石河子开发区天业化工有限责任公司 | Polymerization ESS and DCS integrated emergency safety production control method |
| EP2988860B1 (en) * | 2013-04-26 | 2017-06-14 | Basf Se | Process and supply unit for restabilization of free-radically polymerizable monomers |
-
2018
- 2018-05-07 CN CN201810426674.6A patent/CN110449095A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1234099A (en) * | 1997-11-11 | 1999-05-31 | Basf Aktiengesellschaft | Device for feeding a fluid into a container |
| CN101619112A (en) * | 2008-07-03 | 2010-01-06 | 中国石油化工股份有限公司 | Method and device for preventing olefine polymerization reactor of gas phase fluidized bed from caking |
| EP2988860B1 (en) * | 2013-04-26 | 2017-06-14 | Basf Se | Process and supply unit for restabilization of free-radically polymerizable monomers |
| CN203591791U (en) * | 2013-12-05 | 2014-05-14 | 南京美星鹏科技实业有限公司 | Terminating device for acrylic resin |
| CN203916657U (en) * | 2014-05-15 | 2014-11-05 | 吴持跃 | Chemical reaction kettle feed arrangement |
| CN105233775A (en) * | 2015-09-11 | 2016-01-13 | 中国石油化工股份有限公司 | Method for rapidly and uniformly adding diluent and inhibitor during stirring failure |
| CN106125691A (en) * | 2016-08-04 | 2016-11-16 | 石河子开发区天业化工有限责任公司 | Polymerization ESS and DCS integrated emergency safety production control method |
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