CN208757538U - A kind of n-hexane catalytic cracking reaction device - Google Patents
A kind of n-hexane catalytic cracking reaction device Download PDFInfo
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- CN208757538U CN208757538U CN201821096996.0U CN201821096996U CN208757538U CN 208757538 U CN208757538 U CN 208757538U CN 201821096996 U CN201821096996 U CN 201821096996U CN 208757538 U CN208757538 U CN 208757538U
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- reactor
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- catalytic cracking
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Abstract
The utility model discloses a kind of n-hexane catalytic cracking reaction devices, comprising: sampling device comprising injection measurement pump, for pressing metered shot reactant；Reactor is connect with sampling device, and the reactor is equipped with fixed reaction bed, and the fixed reaction bed is equipped with catalyst layer；Detection device comprising gas chromatographic detection instrument is connect with reactor；Temperature control device is separately positioned between reactor outer layer and reactor front end and reactor and detection device；Nitrogen cylinder, is equipped with control valve and flow control valve is connect with reactor；Utility model device reactor is directly connected to detection device, detection device is equipped with gas chromatograph, and the utility model takes charging and discharging preheating mode, guarantee that charging and discharging are all gas phases, gas-chromatography can be directly entered to be monitored on-line, experimental procedure is reduced, reduce experimental error, it is more convenient to complete in laboratory, significantly improves conventional efficient and precision.
Description
Technical field
The utility model relates to chemical reaction equipment technical fields, and in particular to a kind of n-hexane catalytic cracking reaction dress
It sets.
Background technique
The reaction unit of n-hexane catalytic cracking is normally due to be gas-liquid-solid phase reaction, the product of generation is also relatively more multiple
It is miscellaneous: coke, methane, the C1-C6 component such as ethane, propane, ethylene, propylene, butane, so that reaction unit is typically complex, at
The step of this is also high, and product has a liquid and gas, therefore product analysis is usually gas phase and liquid phase separate detection, increases experiment
And experimental error.
Utility model content
One purpose of the utility model provides a kind of n-hexane catalytic cracking reaction device aiming at the above problem,
It is tested for n-hexane catalytic cracking reaction, reactor is directly connected to detection device, and detection device is equipped with gas chromatograph, and
And the utility model takes charging and discharging preheating mode, guarantees that charging and discharging are all gas phases, can be directly entered gas
Phase chromatography is monitored on-line, and experimental procedure is reduced, and reduces experimental error, is more convenient to complete in laboratory, is significantly improved experiment
Efficiency and precision.
Technical solution provided by the utility model are as follows:
A kind of n-hexane catalytic cracking reaction device, comprising:
Sampling device comprising injection measurement pump, for pressing metered shot reactant；
Reactor is connect with sampling device, and the reactor is equipped with fixed reaction bed, and the fixed reaction bed is equipped with and urges
Agent layer；
Detection device comprising gas chromatographic detection instrument is connect with reactor；
Temperature control device is separately positioned between reactor outer layer and reactor front end and reactor and detection device；
Nitrogen cylinder, is equipped with control valve and flow control valve is connect with reactor.
Preferably, control valve is equipped between the sampling device and reactor.
Preferably, it is equipped with control valve between the detection device and reactor, and is separately positioned on detection device and anti-
Answer the temperature control device front and back between device.
Preferably, the fixed reaction bed is detachably arranged.
Preferably, the pipeline before the temperature control device that reactor rear end is arranged in is also connected with cooling device, produces
Object collection device and switch valve.
The utility model is also provided a kind of be catalyzed using the n-hexane catalytic cracking reaction device progress n-hexane and split
Change the method for reaction, comprising: Step 1: before the reaction, catalyst layer is installed on fixed reaction bed, catalyst layer is partial size 40
Then molecules of interest sieve catalyst opens control valve and flow control valve, is passed through nitrogen for the oxygen in reactor and pipeline
It excludes, closes control valve and flow control valve, the temperature control device by the way that reactor outer layer is arranged in preheat reactor
400-500 DEG C 5-10 minutes；
Step 2: quantitative reactant n-hexane is added by injection measurement pump, open between sampling device and reactor
Control valve, 175-300 DEG C of preheating is carried out to reactant by the way that the temperature control device of reactor front end is arranged in；
Step 3: the temperature control device that reactor outer layer is arranged in adjusting temperature to be made to the reaction temperature 450- of reactor
550 DEG C, reactant reacts at being 450-550 DEG C in temperature with molecular sieve catalyst；
Step 4: waiting after the reaction was completed, the control valve between opening detecting device and reactor, setting detection device is adjusted
The temperature of temperature control device between reactor is 175-300 DEG C, so that product is in gaseous state and is entered detection device and is examined
It surveys.The beneficial effects of the utility model are as follows:
1), utility model device is provided with temperature control device on the pipeline of charging and preheats for reactant, right in advance
Reactant is heated, and the reaction efficiency of reaction is improved；
2), utility model device reactor and detection device are directly connected to detection device and are equipped with gas chromatograph, between
It is additionally provided with temperature control device, keeps gas phase that can directly be detected by gas chromatograph so that product comes out from reactor, directly
Detection can be reduced the experimental error of detection, improve experimental precision.
Detailed description of the invention
Fig. 1 is the utility model n-hexane catalytic cracking reaction schematic device,
In figure: sampling device 101, control valve 102,105,110,112,114, temperature control device 103,108,111, nitrogen cylinder
104, flow control valve 106, reactor 107, fixed reaction bed 109, detection device 113, cooling device 115, collection of products dress
Set 116.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
In the description of the present invention, it should be noted that term " top ", " bottom end ", " upper end ", " lower end " etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings or when utility model product uses is used
The orientation or positional relationship often put, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
As shown in Figure 1,
A kind of n-hexane catalytic cracking reaction device, comprising:
Sampling device 101 comprising injection measurement pump, for pressing metered shot reactant；
Reactor 107 is connect with sampling device 101, and the reactor 107 is equipped with fixed reaction bed 109, the fixation
Reaction bed 109 is equipped with catalyst layer；
Detection device 113 comprising gas chromatographic detection instrument is connect with reactor 107；
Temperature control device 108,103,111 is separately positioned on 107 outer layer of reactor and 107 front end of reactor and reaction
Between device 107 and detection device 113；
Nitrogen cylinder 104, is equipped with control valve 105 and flow control valve 106 is connect with reactor 107.
Wherein another preferred embodiment is equipped with control valve 102 between the sampling device 101 and reactor 107.
Wherein another preferred embodiment, between the detection device 113 and reactor 107 be equipped with control valve 110,
112, and 111 front and back of temperature control device being separately positioned between detection device 113 and reactor 107.
Wherein another preferred embodiment, the fixed detachably setting of reaction bed 109.
Wherein another preferred embodiment, the pipeline before the temperature control device 111 that 107 rear end of reactor is set
It is also connected with cooling device 115, collection of products device 116 and switch valve 114.
The utility model is also provided a kind of be catalyzed using the n-hexane catalytic cracking reaction device progress n-hexane and split
Change the method for reaction, comprising: Step 1: before the reaction, installing catalyst layer on fixed reaction bed 109, catalyst layer is grain
Then 40 molecules of interest sieve catalyst of diameter opens control valve 105 and flow control valve 106, be passed through nitrogen by reactor 107 and
Oxygen in pipeline excludes, and closes control valve 105 and flow control valve 106, and the temperature control by the way that 107 outer layer of reactor is arranged in fills
108 pairs of reactors 107 are set to carry out preheating 400-500 DEG C 5-10 minutes；
Step 2: quantitative reactant n-hexane is added by injection measurement pump, sampling device 101 and reactor are opened
Control valve 102 between 107, the temperature control device 103 by the way that 107 front end of reactor is arranged in carry out preheating 175- to reactant
300℃；
Step 3: the temperature control device 108 that 107 outer layer of reactor is arranged in adjusting temperature to be made to the reaction temperature of reactor 107
Degree is 450-550 DEG C, and reactant reacts at being 450-550 DEG C in temperature with molecular sieve catalyst；
Step 4: waiting after the reaction was completed, the control valve 110,112 between opening detecting device 113 and reactor 107, adjust
The temperature of temperature control device 111 between section setting detection device 113 and reactor 107 is 175-300 DEG C, and product is made to be in gas
State enters detection device 113 and is detected.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and embodiment shown and described herein with novel.
Claims (5)
1. a kind of n-hexane catalytic cracking reaction device characterized by comprising
Sampling device comprising injection measurement pump, for pressing metered shot reactant；
Reactor is connect with sampling device, and the reactor is equipped with fixed reaction bed, and the fixed reaction bed is equipped with catalyst
Layer；
Detection device comprising gas chromatographic detection instrument is connect with reactor；
Temperature control device is separately positioned between reactor outer layer and reactor front end and reactor and detection device；
Nitrogen cylinder, is equipped with control valve and flow control valve is connect with reactor.
2. n-hexane catalytic cracking reaction device as described in claim 1, which is characterized in that the sampling device and reactor
Between be equipped with control valve.
3. n-hexane catalytic cracking reaction device as described in claim 1, which is characterized in that the detection device and reactor
Between be equipped with control valve, and before and after being separately positioned on the temperature control device between detection device and reactor.
4. n-hexane catalytic cracking reaction device as described in claim 1, which is characterized in that the fixed reaction bed is detachable
Setting.
5. n-hexane catalytic cracking reaction device as claimed in claim 3, which is characterized in that be arranged after reactor described
Pipeline before the temperature control device at end is also connected with cooling device, collection of products device and switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821096996.0U CN208757538U (en) | 2018-07-11 | 2018-07-11 | A kind of n-hexane catalytic cracking reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821096996.0U CN208757538U (en) | 2018-07-11 | 2018-07-11 | A kind of n-hexane catalytic cracking reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208757538U true CN208757538U (en) | 2019-04-19 |
Family
ID=66128409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821096996.0U Expired - Fee Related CN208757538U (en) | 2018-07-11 | 2018-07-11 | A kind of n-hexane catalytic cracking reaction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208757538U (en) |
-
2018
- 2018-07-11 CN CN201821096996.0U patent/CN208757538U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20200711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |