CN203602561U - Hydrogenation testing device - Google Patents
Hydrogenation testing device Download PDFInfo
- Publication number
- CN203602561U CN203602561U CN201320652906.2U CN201320652906U CN203602561U CN 203602561 U CN203602561 U CN 203602561U CN 201320652906 U CN201320652906 U CN 201320652906U CN 203602561 U CN203602561 U CN 203602561U
- Authority
- CN
- China
- Prior art keywords
- pressure separator
- pipeline
- phase outlet
- scrubber tower
- filling port
- 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
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007791 liquid phase Substances 0.000 claims abstract description 4
- 239000007792 gaseous phase Substances 0.000 claims description 27
- 239000001257 hydrogen Substances 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012071 phase Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 26
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000011157 data evaluation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a hydrogenation testing device. The hydrogenation testing device comprises a reactor, a high-pressure separator, a low-pressure separator and a gas washing tower, wherein an outlet of the reactor is connected with an inlet of the high-pressure separator by a pipeline; a liquid-phase outlet of the high-pressure separator is connected with the inlet of the low-pressure separator by a pipeline; a gas-phase outlet of the high-pressure separator is connected with the inlet of the gas washing tower by a pipeline; a water injection hole is formed in a connection pipeline between the gas-phase outlet of the high-pressure separator and the inlet of the gas washing tower; the water injection hole is connected with a water injection pipe. The hydrogenation testing device has the advantages of good washing effect, low cost, easiness of operation and the like.
Description
Technical field
The utility model relates to a kind of testing apparatus, relates in particular to the small-sized or medium-sized hydrogenation test apparatus that a kind of laboratory is used.
Background technology
Small-sized or medium-sized hydrogenation test apparatus is the testing apparatus that technician often uses for evaluating catalyst, analoging industrial device, comparatively extensive in R&D institution's application of being engaged in hydrogenation.The flow process of small test device is fairly simple, and treatment capacity is smaller, and per hour is the highest 200mL, and hydrogen is capable of circulation, but oil does not circulate, and conventionally can only be used for catalyzer preliminary assessment.Medium-sized tester flow process more complicated, treatment capacity is bigger than normal, and per hour is the highest 3L, hydrogen recycle, oil also can recycle, and can be refinery and does basic data evaluation.Meanwhile, medium-sized hydrogenation unit is worn distillation column system, operation more complicated.In evaluating catalyst, can go out qualified light naphthar and bottle coal diesel product at separation column straight run distillation, thereby accelerate test progress.
These small-sized or medium-sized hydrogenation test apparatus all comprise reactor, high-pressure separator, circulating hydrogen compressor, light pressure separator and scrubber tower conventionally.Wherein the structure of scrubber tower is comparatively simple, generally includes high pressure cylindrical shell, Stainless Steel Helices and fluid level controller.In cylindrical shell, the effect of the Stainless Steel Helices of filling is the area that strengthens gas-to-liquid contact.The Main Function of scrubber tower is to wash the H containing in high score gas off
2s, NH
3, NH
4hS or (NH
4)
2s, to prevent from being under high temperature the ammonium salt (NH of gas phase
4) HS or (NH
4)
2s is crystallization blocking pipeline in gas phase pipeline at low temperatures, and causes the generation of the improper stoppage in transit of device.
In testing apparatus running, after the gas that height branches away mixes with the washing water of injection (or alkaline detergent solution), by the stainless steel filler in scrubber tower and carry out gas-liquid separation.Due to the unreasonable structure of scrubber tower, will cause occurring two kinds of uncertainties: one is that flooding quantity is little, gas through filler, is worn water attack fast, and the fast water of gas is slow; Another kind is that gas is taken a shortcut, and not fully contact in scrubber tower of G&W, does not reach the H washing off in gas
2the effect of S.
In small-sized or medium-sized hydrogenation test apparatus, the injection rate of washing water is conventionally larger, more than generally accounting for the 25wt%～50wt% of oil inlet quantity.But on-stream discovery, due to the structural limitations of small-sized scrubber tower, washing water contact insufficiently with high score gas in scrubber tower, and washing water are to H in high score gas
2s, NH
3and the washing of ammonium salt is incomplete, causes in high score washing gas and contain a large amount of H
2s, NH
3, or even NH
4hS and (NH
4)
2s.In scrubber tower gas out, contain ammonium salt, will cause two kinds of phenomenons of the on-stream appearance of device: (1) scrubber tower gas causes mixed hydrogen tank source line to stop up while turning back to mixed hydrogen tank and low point of gas circuit stopped up; (2), when middle-scale device running need to be opened fractionating system, oil, in the time that stabilizer tower and atmospheric tower distill, often causes stabilizer tower and atmospheric tower top gas circuit NH
4salt crystallization is processed after causing experiment cannot carry out fractionating system must being stopped transport.Improper stoppage in transit has greatly affected the carrying out of normal test process frequently.
In order to address the above problem CN201020600614.0, a kind of hydrogenation test apparatus is disclosed.This device comprises reactor, high-pressure separator, light pressure separator, scrubber tower and circulating hydrogen compressor, wherein between the gaseous phase outlet of high-pressure separator and scrubber tower, is also provided with gas liquid mixer.This utility model makes the gentle fully mixing in mixing tank of water, then, by the secondary gas washing of scrubber tower, has reached H in abundant washing high score gas
2s and NH
3deng object, thereby solved NH in device running
4salt stops up the problem of gas circuit pipeline.NH when but this utility model exists device long-play
4the problem that salt is easily accumulated in gas liquid mixer bottom, and set up gas liquid mixer and also can improve improvement cost and working pressure.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of improved hydrogenation test apparatus, and this device has the advantages such as washing effect is good, cost is low, processing ease.
A kind of hydrogenation test apparatus, comprise reactor, high-pressure separator, light pressure separator, scrubber tower, the outlet of described reactor is connected by pipeline with the entrance of high-pressure separator, the liquid-phase outlet of described high-pressure separator is connected by pipeline with the entrance of light pressure separator, the gaseous phase outlet of described high-pressure separator is connected by pipeline with the entrance of scrubber tower, the connection line of the gaseous phase outlet of described high-pressure separator and scrubber tower entrance is provided with water filling port, and water filling port is connected with water injection pipe.
In the utility model, the connection line length of the gaseous phase outlet of described high-pressure separator and scrubber tower entrance can be carried out Rational choice according to practical situation, the connection line length of the gaseous phase outlet of general high voltage separator and scrubber tower entrance is 100-1000cm, preferably 200-350cm.
In the utility model, described water filling port generally will be near the gaseous phase outlet of high-pressure separator, water filling port to the length of pipeline of the gaseous phase outlet of high-pressure separator general I be the 1/3-1/10 of water filling port to scrubber tower source line caliber, preferred 1/5-1/7.
In the utility model, water filling port to the pipeline caliber of the gaseous phase outlet of high-pressure separator is 1.1-3 times to scrubber tower source line caliber of water filling port, and preferably 1.5-2 doubly.The variation of caliber has improved gas-liquid mixed effect, has cushioned the device bringing due to the variation of pressure after gas-liquid mixed unstable.
In the utility model, described reactor comprises hydrocracking reactor, hydrotreatment reaction etc., and the number of reactor can be one or more.
In the utility model, described water injection pipe is injected into the water in water pot in the gaseous phase outlet of high-pressure separator and the connection line of scrubber tower entrance by high-pressure pump.
In the utility model, the gaseous phase outlet of scrubber tower is connected with mixed hydrogen tank by pipeline, after mixing, is again back to hydrogenation unit by compressor in mixed hydrogen tank with new hydrogen.
In the utility model, described high-pressure separator and light pressure separator are conventional separator, and the entrance of separation is arranged on sidewall.
Compare with existing small-sized or medium-sized hydrogenation test apparatus, the utlity model has following characteristics:
(1) on the connection line of the utility model by the entrance of the gaseous phase outlet in high-pressure separator and scrubber tower, set up water filling port and control the position of water filling port and the caliber of junction line, the washing water of isolated high score gas and injection are mixed in the pipeline of reducing, increase the duration of contact of high score G&W, reached and fully washed H in gas off
2s and NH
3deng object; Then again by the secondary gas washing of scrubber tower, can find that it is dark brown and H soon that the washing water that eject are used in scrubber tower
2s taste is dense, by analyzing, and washing water H
2s content is not for changing front H
2several times of S content, thus device NH in running is evaluated solved
4salt blocking device problem, has guaranteed testing data accuracy, has ensured carrying out smoothly of scientific effort;
(2) the utility model, without setting up gas-liquid mixed tank, carries out a little to device and changes, and can solve and affect the difficult problem that hydrogenation unit runs well, and transformation infusion of financial resources is few, and instant effect, can be widely used in the transformation to existing experimental use hydrogenation unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of small-sized hydrogenation test apparatus of the utility model.
Embodiment
further illustrate structure and the operating process of a kind of hydrogenation test apparatus of the utility model below in conjunction with accompanying drawing, but following examples do not form the restriction to the utility model protection scheme.
A kind of hydrogenation test apparatus as shown in Figure 1, comprise reactor 3, high-pressure separator 5, light pressure separator 9, scrubber tower 17, the entrance of the outlet of described reactor 3 and high-pressure separator 5 is connected by pipeline 4, the entrance of the liquid-phase outlet of described high-pressure separator 5 and light pressure separator 17 is connected by pipeline 16, the entrance of the gaseous phase outlet of described high-pressure separator 5 and scrubber tower 9 is connected by pipeline 6,8, the connection line of the gaseous phase outlet of described high-pressure separator 5 and scrubber tower 9 entrances is provided with water filling port, and water filling port is connected with water injection pipe 7.Described reactor 3 comprises hydrocracking reactor, hydrotreatment reaction etc., and the number of reactor can be one or more.Described water injection pipe 7 is injected into the water in water pot in the gaseous phase outlet of high-pressure separator 5 and the connection line of scrubber tower 9 entrances by high-pressure pump.The connection line length 100-1000cm of the gaseous phase outlet of described high-pressure separator 5 and scrubber tower 9 entrances, preferably 200-350cm.Water filling port to the pipeline caliber of the gaseous phase outlet of high-pressure separator 5 is 1.1-3 times to scrubber tower 9 source line calibers of water filling port, and preferably 1.5-2 doubly.Water filling port to the length of pipeline of the gaseous phase outlet of high-pressure separator 5 is the 1/3-1/10 of water filling port to scrubber tower 9 source line calibers, preferably 1/5-1/7.The gaseous phase outlet of scrubber tower 9 is connected with mixed hydrogen tank 12 by pipeline 10, after mixing, returns to hydrogenator 3 by compressor 14 in mixed hydrogen tank with new hydrogen 11.
The operating process of a kind of hydrogenation test apparatus of the utility model is as follows: the stock oil 1 after heating through pipeline 2 with after the hydrogen of pipeline 15 mixes, enter reactor 3, under the effect of hydrogen and catalyzer, react; Reaction effluent enters high-pressure separator 5 through pipeline 4, carries out gas-liquid separation at this; Generate oil and enter light pressure separator 17 through pipeline 16, isolate lighter hydrocarbons 18 and liquid 19; The hydrogen-rich gas that high-pressure separator separates is through pipeline 6, together with the washing water that inject with water injection pipe 7, enter scrubber tower 9 through pipeline 8, gas after again washing enters mixed hydrogen tank 12 through pipeline 10 and through the new hydrogen of pipeline 11, then after pipeline 13 enters circulating hydrogen compressor 14 superchargings, be hydrogenator through pipeline 15 circulations, liquid is discharged through pipeline 20.
Claims (9)
1. a hydrogenation test apparatus, comprise reactor, high-pressure separator, light pressure separator, scrubber tower, the outlet of described reactor is connected by pipeline with the entrance of high-pressure separator, the liquid-phase outlet of described high-pressure separator is connected by pipeline with the entrance of light pressure separator, the gaseous phase outlet of described high-pressure separator is connected by pipeline with the entrance of scrubber tower, it is characterized in that: the connection line of the gaseous phase outlet of described high-pressure separator and scrubber tower entrance is provided with water filling port, and water filling port is connected with water injection pipe.
2. device according to claim 1, is characterized in that: the connection line length of the gaseous phase outlet of high-pressure separator and scrubber tower entrance is 100-1000cm.
3. device according to claim 2, is characterized in that: the connection line length of the gaseous phase outlet of described high-pressure separator and scrubber tower entrance is 200-350cm.
4. device according to claim 1, is characterized in that: water filling port to the length of pipeline of the gaseous phase outlet of high-pressure separator is the 1/3-1/10 of water filling port to scrubber tower source line caliber.
5. device according to claim 4, is characterized in that: water filling port to the length of pipeline of the gaseous phase outlet of high-pressure separator is the 1/5-1/7 of water filling port to scrubber tower source line caliber.
6. device according to claim 1, is characterized in that: water filling port to the pipeline caliber of the gaseous phase outlet of high-pressure separator is 1.1-3 times to scrubber tower source line caliber of water filling port.
7. device according to claim 6, is characterized in that: water filling port to the pipeline caliber of the gaseous phase outlet of high-pressure separator is 1.5-2 times to scrubber tower source line caliber of water filling port.
8. device according to claim 1, is characterized in that: water injection pipe is connected successively by the same high-pressure pump of pipeline, water pot.
9. device according to claim 1, is characterized in that: the gaseous phase outlet of scrubber tower is connected with mixed hydrogen tank by pipeline, and high-pressure separator and light pressure separator are conventional separator, and the entrance of separation is arranged on sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652906.2U CN203602561U (en) | 2013-10-23 | 2013-10-23 | Hydrogenation testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652906.2U CN203602561U (en) | 2013-10-23 | 2013-10-23 | Hydrogenation testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203602561U true CN203602561U (en) | 2014-05-21 |
Family
ID=50715248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320652906.2U Expired - Lifetime CN203602561U (en) | 2013-10-23 | 2013-10-23 | Hydrogenation testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203602561U (en) |
-
2013
- 2013-10-23 CN CN201320652906.2U patent/CN203602561U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |