CN204735198U - Improve device of hydrogenation catalyst safety in utilization - Google Patents
Improve device of hydrogenation catalyst safety in utilization Download PDFInfo
- Publication number
- CN204735198U CN204735198U CN201520416678.8U CN201520416678U CN204735198U CN 204735198 U CN204735198 U CN 204735198U CN 201520416678 U CN201520416678 U CN 201520416678U CN 204735198 U CN204735198 U CN 204735198U
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- China
- Prior art keywords
- switch valve
- catalyst
- hydrogenation
- pipeline
- safety
- 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 - Fee Related
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- 239000003054 catalyst Substances 0.000 title claims abstract description 60
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 238000005303 weighing Methods 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008676 import Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010068052 Mosaicism Diseases 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- -1 hydrogen compound Chemical class 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model relates to a device that uses during hydrogenation, concretely relates to improve device of hydrogenation catalyst safety in utilization, including the hydrogenation ware, feed hopper is connected to the hydrogenation ware, be equipped with the 6th ooff valve between hydrogenation ware and the feed hopper export, feed hopper is the connection pressure changer respectively, the catalyst dog -house, the hydrogen pipeline, nitrogen gas pipeline, the solvent pipeline, feed pipeline, vent line, feed hopper and catalyst dog -house, the hydrogen pipeline, nitrogen gas pipeline, the solvent pipeline, be equipped with first ooff valve between the feed pipeline respectively, the second switch valve, the third ooff valve, the fourth ooff valve, the 5th ooff valve, feed pipeline and filter exit linkage, the filter import is connected with the hydrogenation ware, the equal connection control system of each ooff valve and pressure transmitter. The utility model discloses a control system procedure sets up, can reach the automated control that the material process was thrown to the catalyst, guarantees the safety in production.
Description
Technical field
The device that the utility model uses when relating to a kind of batch tank hydrogenation reaction, is specifically related to a kind of device improving catalyst for hydrogenation safety in utilization.
Background technology
Hydrogenation reaction is the reaction adding hydrogen atom in organic compound molecule, and hydrogenation reaction, in petroleum refining industry, except for except hydrocracking, is also widely used in hydrofinishing.In addition, hydrogenation process also refines means as the one of chemical industry, is harmful to and not segregative impurity on a small quantity contained by removing in Organic Ingredients or product.
The reaction condition such as material, catalyst that hydrogenation reaction needs requires harsher, and one of dangerous technique during hydrogenation reaction is also national Administration of Work Safety Supervision promulgates " the dangerous chemical process catalogue of first batch of emphasis supervision ", its process dangerous feature has: 1) reaction mass has and fires danger, the explosion limit of hydrogen is 4%-75%, has height and fires hazard property; 2) be hydrogenated to strong exothermic reaction, hydrogen contacts with steel at high temperature under high pressure, and the carbon molecule in steel easily reacts with hydrogen Formed hydrogen compound, steel systeming equipment intensity is reduced, generation hydrogen embrittlement; 3) easily explosion caused in catalyst regeneration and activation process; 4) have the hydrogen of non-complete reaction and other impurity easily to cause when discharging in hydrogenation reaction tail gas to catch fire or explode.
Current Catalytic Hydrogenation Techniques is used widely on fine chemistry industry is produced, but be limited to the conditions such as investment and scale, what most medium-sized and small enterprises adopted is batch tank hydrogenation technique, although batch tank hydrogenation one-time investment is little, but because of catalyst costly, the feature such as the explosive and intermittently operated of hydrogen, also face the problem of a lot of production and safety aspect.About the use safety sex chromosome mosaicism of catalyst, have made some improvements in prior art and optimize, as increased catalyst cast hopper, or catalyst filter being put into above hydrogenation still, being convenient to reusable catalyst and turning back in hydrogenation still.But still come with some shortcomings:
(1) at present the catalyst process majority that feeds in raw material is operating personnel's execute-in-place, and automatization level is lower, adds the probability that people is maloperation, there is very large potential safety hazard;
(2) because its active situation of reusable catalyst accurately cannot be detected, and the inactivation many factors of catalyst, for production control cost, number of times reused by the catalyst that general employing is estimated, but its activity that there is catalyst in course of reaction cannot meet reaction needed, need the situation adding catalyst in time, what current device cannot realize online catalyst adds operation;
(3) reusable catalyst cannot accurate-metering, thus cannot add appropriate raw catelyst, and then affects reaction process and hydrogenated products quality;
(4), in catalyst input process, because catalyst granules is comparatively thin, and be easily adsorbed on the headwall that feeds intake and be deposited in bottom cast hopper, catalyst cannot drop into easily and effectively utilize, and there is the danger of misoperation fire hazardous blast.
Utility model content
In order to solve the problems of the technologies described above, ensure safety during batch tank hydrogenation reaction, the utility model provides a kind of device improving catalyst for hydrogenation safety in utilization.
The utility model adopts following technical scheme:
A kind of device improving catalyst for hydrogenation safety in utilization, comprise hydrogenation reactor, hydrogenation reactor connects cast hopper, the 6th switch valve is provided with between hydrogenation reactor and cast hopper export, cast hopper is Bonding pressure transmitter respectively, catalyst dog-house, hydrogen gas lines, nitrogen pipeline, solvent line, feeding line, exhaust line, cast hopper and catalyst dog-house, hydrogen gas lines, nitrogen pipeline, solvent line, the first switch valve is respectively equipped with between feeding line, second switch valve, 3rd switch valve, 4th switch valve, 5th switch valve, described feeding line is connected with filter outlet, filter inlet is connected with hydrogenation reactor, described first switch valve, second switch valve, 3rd switch valve, 4th switch valve, 5th switch valve, 6th switch valve and the equal connection control system of pressure transmitter.
Be provided with Weighing module in described cast hopper, Weighing module, for measuring the reusable catalyst sent into through feeding line by filter, obtains its delicate, adds appropriate raw catelyst according to its weight.
Be provided with paddle in described cast hopper, the stirring action of paddle makes cast hopper inner catalyst and solvent be uniformly mixed into suspension, makes tiny catalyst granules cannot be adsorbed on cast hopper inwall or be deposited to bottom cast hopper.
Described filter connects dead catalyst filter, is further processed dead catalyst.
The course of work of the present utility model is:
The each switch valve of the utility model under control of the control system, carries out the operation of automation according to safety regulation for operations, reach the object of safety operation.Catalyst under the filter backwash of precision, cast hopper is entered into by feeding line, Weighing is carried out by the Weighing module on cast hopper, what obtain accurate weight reuses catalyst, then the raw catelyst of required weight is needed to be added in cast hopper, time reinforced, control system controls following sequence procedure operation: the first step confirms that the first switch valve, second switch valve, the 3rd switch valve, the 4th switch valve, the 5th switch valve and the 6th switch valve are closed condition, pressure transmitter display pressure is below specified pressure, usually selects below 0.02MPa; Second step opens the first switch valve and the 3rd switch valve, passes into the raw catelyst that measures and fills into appropriate nitrogen; 3rd step closes the first switch valve and the 3rd switch valve, opens paddle, and opens second switch valve, fill into a certain amount of hydrogen, close second switch valve after reaching pressure transmitter setting value; 4th step opens the 6th switch valve, and catalyst joins in hydrogenation reactor, when Weighing module is shown as 0, closes the 6th switch valve.
Adding online of catalyst operates and the above-mentioned similar process that feeds intake, and the main distinction is that the force value of the 3rd step pressure transmitter is different, only need supplement a certain amount of hydrogen, by pressure adjusting to its setting value.
Advantage of the present utility model and beneficial effect are:
The utility model by control system programming, can reach catalyst and to feed intake the Automated condtrol of process, accurately, timely add catalyst, and reduce the execute-in-place of operating personnel, thus decrease the probability that people is maloperation, ensure that safety in production.
Be provided with Weighing module in cast hopper, solving reusable catalyst cannot the problem of accurate-metering, ensure that reaction process and hydrogenated products quality.
In addition, paddle of the present utility model makes tiny catalyst granules cannot be adsorbed on bucket wall and be deposited to feed hopper bottom, decreases the aerial probability of catalyst exposure, ensure that safety in production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1-hydrogenation reactor, 2-paddle, 3-Weighing module, 4-cast hopper, 5-pressure transmitter, 6-first switch valve, 7-catalyst dog-house, 8-hydrogen gas lines, 9-nitrogen pipeline, 10-solvent line, 11-exhaust line, 12-filter, 13-second switch valve, 14-the 3rd switch valve, 15-the 4th switch valve, 16-the 5th switch valve, 17-the 6th switch valve, 18-feeding line, 19-dead catalyst filter.
Detailed description of the invention
As shown in Figure 1, improve a device for catalyst for hydrogenation safety in utilization, for the safety operation of batch tank hydrogenation reaction, comprise hydrogenation reactor 1, hydrogenation reactor 1 connects cast hopper 4, is the 6th switch valve 17 between hydrogenation reactor 1 and cast hopper 4 export.
Cast hopper 4 is Bonding pressure transmitter 5, catalyst dog-house 7, hydrogen gas lines 8, nitrogen pipeline 9, solvent line 10, feeding line 18, exhaust line 11 respectively, the first switch valve 6, second switch valve 13, the 3rd switch valve 14, the 4th switch valve 15, the 5th switch valve 16 is respectively equipped with, the circulation of the corresponding pipeline of open and close controlling of each switch valve between cast hopper 4 and catalyst dog-house 7, hydrogen gas lines 8, nitrogen pipeline 9, solvent line 10, feeding line 18.Described first switch valve 6, second switch valve 13, the 3rd switch valve 14, the 4th switch valve 15, the 5th switch valve 16, the 6th switch valve 17 and pressure transmitter 5 be connection control system (not indicating in accompanying drawing) all, under the sequence programme-control of control system, carry out action.
Described feeding line 18 exports with filter 12 and is connected, and feeding line 18 sends the catalyst through filter 12 fine processing back to cast hopper 4, to reuse.Filter 12 import is connected with hydrogenation reactor 1, thus carries out treatment for reuse to the catalyst reacted after hydrogenation reaction.Filter 12 also connects dead catalyst filter 19, is further processed dead catalyst.
Be provided with Weighing module 3 in described cast hopper 4, Weighing module 3 is for weighing the reusable catalyst sent into through feeding line 18 by filter 12.In addition, paddle 2 is also provided with in cast hopper 4.
Claims (4)
1. one kind is improved the device of catalyst for hydrogenation safety in utilization, comprise hydrogenation reactor, hydrogenation reactor connects cast hopper, it is characterized in that, the 6th switch valve is provided with between hydrogenation reactor and cast hopper export, cast hopper is Bonding pressure transmitter respectively, catalyst dog-house, hydrogen gas lines, nitrogen pipeline, solvent line, feeding line, exhaust line, cast hopper and catalyst dog-house, hydrogen gas lines, nitrogen pipeline, solvent line, the first switch valve is respectively equipped with between feeding line, second switch valve, 3rd switch valve, 4th switch valve, 5th switch valve, described feeding line is connected with filter outlet, filter inlet is connected with hydrogenation reactor, described first switch valve, second switch valve, 3rd switch valve, 4th switch valve, 5th switch valve, 6th switch valve and the equal connection control system of pressure transmitter.
2. the device of raising catalyst for hydrogenation safety in utilization according to claim 1, is characterized in that, be provided with Weighing module in described cast hopper.
3. the device of raising catalyst for hydrogenation safety in utilization according to claim 1, is characterized in that, be provided with paddle in described cast hopper.
4. the device of raising catalyst for hydrogenation safety in utilization according to claim 1, is characterized in that, described filter connects dead catalyst filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416678.8U CN204735198U (en) | 2015-06-16 | 2015-06-16 | Improve device of hydrogenation catalyst safety in utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416678.8U CN204735198U (en) | 2015-06-16 | 2015-06-16 | Improve device of hydrogenation catalyst safety in utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204735198U true CN204735198U (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416678.8U Expired - Fee Related CN204735198U (en) | 2015-06-16 | 2015-06-16 | Improve device of hydrogenation catalyst safety in utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204735198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106590940A (en) * | 2016-12-29 | 2017-04-26 | 杭州油脂化工有限公司 | Safe feeding device and safe feeding method for intermittent hydrogenation reaction catalyst |
-
2015
- 2015-06-16 CN CN201520416678.8U patent/CN204735198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106590940A (en) * | 2016-12-29 | 2017-04-26 | 杭州油脂化工有限公司 | Safe feeding device and safe feeding method for intermittent hydrogenation reaction catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |