CN204767619U - Different structure dewaxing device - Google Patents
Different structure dewaxing device Download PDFInfo
- Publication number
- CN204767619U CN204767619U CN201520348897.7U CN201520348897U CN204767619U CN 204767619 U CN204767619 U CN 204767619U CN 201520348897 U CN201520348897 U CN 201520348897U CN 204767619 U CN204767619 U CN 204767619U
- Authority
- CN
- China
- Prior art keywords
- water
- dewaxing device
- condensate
- isomerization dewaxing
- condensate water
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 164
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000006317 isomerization reaction Methods 0.000 claims description 48
- 238000005498 polishing Methods 0.000 claims description 15
- 239000010865 sewage Substances 0.000 abstract description 38
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002199 base oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a different structure dewaxing device belongs to the lube oil base stock production field. The export of the condensate water of different structure dewaxing device's return tank through the condensate water pipeline with different structure dewaxing device's water injection jar intercommunication. The utility model discloses a condensate water export of different structure dewaxing device's return tank is through the water injection jar intercommunication of condensate water pipeline with different structure dewaxing device to make the condensate water isolated through the return tank as the demineralized water and come into operation again, avoid carrying out sewage treatment to the condensate water, reduce the handling capacity of sewage treatment device, and then reduce the energy consumption of sewage treatment device, reduce sewage treatment's cost, and practice thrift the demineralized water.
Description
Technical field
The utility model relates to the production field of lube base oil, particularly a kind of isomerization dewaxing device.
Background technology
Isomerization dewaxing is a kind of technique of producing high viscosity index (HVI) base oil, its reaction mechanism is: under catalyst action, by the isoparaffin that the isocraking of large molecule n-alkane becomes molecular weight identical or smaller, thus reach the object of base oil high viscosity index (HVI), low pour point and high yield.Wherein, isomerization dewaxing completes in isomerization dewaxing device.
The fractionating column of existing isomerization dewaxing device generates oil by a large amount of steam to reaction and carries out stripping, and the condensate water after stripping in return tank and separation of oil, carries out sewage disposal by being pumped to sewage-treatment plant.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Sulphur, the nitrogen content of the condensate water after stripping are very low, and not saliferous substantially, and in prior art, condensate water is delivered to sewage-treatment plant and carry out sewage disposal, increase the treating capacity of sewage-treatment plant, thus increase the energy consumption of sewage-treatment plant, increase the cost of sewage disposal.
Utility model content
Condensate water is delivered in order to solve in prior art the treating capacity that sewage-treatment plant carries out the increase sewage-treatment plant of sewage disposal existence, thus increasing the energy consumption of sewage-treatment plant and the problem of cost of sewage disposal, the utility model embodiment provides a kind of isomerization dewaxing device.Described technical scheme is as follows:
A kind of isomerization dewaxing device, the condensate water outlet of the return tank of described isomerization dewaxing device is communicated with through the water injection tank of condensate water pipe with described isomerization dewaxing device.
Particularly, the condensate water outlet of described return tank is connected through the water inlet of condensate water pipe with described water injection tank.
Particularly, described condensate water pipe is provided with low-lift pump.
Particularly, pipeline between the high pressure hot separator of described isomerization dewaxing device and the first air cooler of described isomerization dewaxing device is provided with the first water inlet, described condensate water pipe is connected with described first water inlet, and described condensate water pipe is provided with the first water pump.
Particularly, described first water pump is centrifugal pump.
Particularly, pipeline between the thermal low-pressure separators of described isomerization dewaxing device and the second air cooler of described isomerization dewaxing device is provided with the second water inlet, described condensate water pipe is connected with described second water inlet, and described condensate water pipe is provided with the second water pump.
Particularly, described second water pump is centrifugal pump.
Further, described isomerization dewaxing device also comprises condensate-water polishing tank and flow control valve, and described condensate-water polishing tank and described flow control valve are separately positioned on described condensate water pipe, and described flow control valve is near the outlet of described condensate-water polishing tank.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The utility model is communicated with through the water injection tank of condensate water pipe with isomerization dewaxing device by the condensate water outlet of the return tank of isomerization dewaxing device, thus make again to come into operation as demineralized water through the isolated condensate water of return tank, avoid carrying out sewage disposal to condensate water, reduce the treating capacity of sewage-treatment plant, and then reduce the energy consumption of sewage-treatment plant, reduce the cost of sewage disposal, and save demineralized water.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the isomerization dewaxing device that the utility model one embodiment provides;
Fig. 2 is the structural representation of the isomerization dewaxing device that the another embodiment of the utility model provides;
Fig. 3 is the structural representation of the isomerization dewaxing device that the another embodiment of the utility model provides;
Fig. 4 is the structural representation of the isomerization dewaxing device that the another embodiment of the utility model provides.
Wherein:
1 high pressure hot separator,
2 cold high pressure separators,
3 thermal low-pressure separators,
4 cold low separators,
5 sewage-treatment plants,
6 fractionating columns,
7 return tanks, 71 condensate water outlets,
8 water injection tanks, the water inlet of 81 water injection tanks,
9 first air coolers,
10 second air coolers,
11 the 3rd air coolers,
12 low-lift pumps,
13 condensate-water polishing tanks,
14 first water inlets,
15 second water inlets,
16 flow control valves,
17 high-pressure pumps,
18 condensate water pipes,
19 first water pumps,
20 second water pumps.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, the utility model embodiment provides a kind of isomerization dewaxing device, and the condensate water outlet 71 of the return tank 7 of this isomerization dewaxing device is communicated with the water injection tank 8 of isomerization dewaxing device through condensate water pipe.
The utility model is communicated with the water injection tank 8 of isomerization dewaxing device through condensate water pipe by the condensate water outlet 71 of the return tank 7 of isomerization dewaxing device, thus make again to come into operation as demineralized water through the isolated condensate water of return tank 7, avoid carrying out sewage disposal to condensate water, reduce the treating capacity of sewage-treatment plant 5, and then reduce the energy consumption of sewage-treatment plant 5, reduce the cost of sewage disposal, and save demineralized water.
As shown in Figure 1, the isomerization dewaxing device that the utility model provides, comprises high pressure hot separator 1, cold high pressure separator 2, first air cooler 9, cold low separator 4, thermal low-pressure separators 3, second air cooler 10, sewage-treatment plant 5, fractionating column 6, the 3rd air cooler 11, return tank 7, water injection tank 8 and high-pressure pump 17.
In reaction system hydroisomerizing product cooling after enter high pressure hot separator 1 carry out oil gas two-phase laminated flow produce hot high score gas and hot high score oil.
Wherein, hot high score gas enters the first air cooler 9 from high pressure hot separator 1 top and cools, then enter cold high pressure separator 2 and carry out Oil, Water, Gas separation, hot high score gas isolates heat low point of oil, sewage and heat low point of gas in cold high pressure separator 2, the low point of oil of heat wherein enters cold low separator 4, heat low point of gas is as recycle hydrogen Returning reacting system, and sewage is delivered to sewage-treatment plant 5 and processed.
Hot high score oil flows out through high pressure hot separator 1 outlet at bottom, enter after step-down in pipeline thermal low-pressure separators 3 again flash separation go out heat low point of gas, heat low point of gas enters the second air cooler 10 and cools, then enter cold low separator 4 and carry out Oil, Water, Gas separation, heat low point of gas is separated and produces cold low point of oil, sewage and cold low point of gas in cold low separator 4, wherein, cold low point of pneumatic transmission is to fuel gas pipe network, and sewage is delivered to sewage-treatment plant 5 and processed together with the sewage produced in cold high pressure separator 2.Cold low point of oil and heat low point of oil enter fractionating column 6 after heat exchange in cold low separator 4, steam is adopted to carry out air lift to cold low point of oil and the oily mixture of low point of heat at the bottom of fractionating column 6 tower, heat low point of oil and cold low point of oil and steam to cool through the 3rd air cooler 11 at fractionating column 6 tower top and condense into drop, drop enters return tank 7 through fractionating column 6 tower top outlet, water-oil separating is made by return tank 7, isolated oil flows out through the oil export of return tank 7, isolated gas flows out through the outlet of return tank 7 top gas, and isolated condensate water enters in the pipeline that is communicated with water injection tank 8.
In temperature-fall period, the ammonium sulfide Crystallization Plugging corrosion device that hydrogen sulfide, ammonia and reaction generate is there is in order to prevent product, demineralized water must be injected in pipeline before hot high score gas enters the first air cooler 9 and heat low point of gas enters the second air cooler 10, dilute and rinse hydrogen sulfide, ammonia and ammonium sulfide.In the utility model embodiment, by at water injection tank 8 built with demineralized water, demineralized water to be sent in the pipeline between high pressure hot separator 1 and the first air cooler 9 through high-pressure pump 17 by the first water inlet 14, dilute and rinse hydrogen sulfide, ammonia and the ammonium sulfide in the pipeline between high pressure hot separator 1 and the first air cooler 9, demineralized water to be sent in the pipeline between thermal low-pressure separators 3 and the second air cooler 10 through high-pressure pump 17 by the second water inlet 15, dilution and hydrogen sulfide, ammonia and ammonium sulfide in rinsing between thermal low-pressure separators 3 and the second air cooler 10 pipeline.In the present embodiment, because in the isolated condensate water of return tank 7, the content of sulphur and nitrogen is all very low, therefore be communicated with water injection tank 8 by the condensate water outlet 71 of return tank 7, condensate water mixes with the demineralized water in water injection tank 8 through condensate water pipe 18 and again comes into operation as demineralized water, thus avoid carrying out sewage disposal to demineralized water, alleviate the sewage load of sewage-treatment plant 5, reduce the energy consumption of sewage disposal, and then reduce the cost of sewage disposal, reduce the consumption of demineralized water, and reduce the production cost of demineralized water.
As shown in Figure 1, particularly, the condensate water outlet 71 of return tank 7 is connected with the water inlet 81 of water injection tank through condensate water pipe 18.
In the present embodiment, condensate water enters in water injection tank 8 through condensate water pipe 18 and mixes with the demineralized water in water injection tank 8, in pipeline in the pipeline entering between high pressure hot separator 1 and the first air cooler 9 again and between thermal low-pressure separators 3 and the second air cooler 10, be convenient to control to enter the content of sulphur in the demineralized water in the pipeline in the pipeline between high pressure hot separator 1 and the first air cooler 9 and between thermal low-pressure separators 3 and the second air cooler 10 and nitrogen.
As shown in Figure 1, condensate water pipe 18 is provided with low-lift pump 12, condensate water is sent in water injection tank 8 by low-lift pump 12.
As shown in Figure 2, in the present embodiment, pipeline between the high pressure hot separator 1 of isomerization dewaxing device and the first air cooler 9 of isomerization dewaxing device is provided with the first water inlet 14, condensate water pipe 18 is connected with the first water inlet 14, and condensate water pipe 18 is provided with the first water pump 19, the amount of the demineralized water in the pipeline entering between high pressure hot separator 1 and the first air cooler 9 by the first water inlet 14 is supplemented by condensate water, wherein, first water pump 19 is centrifugal pump, noise is low, failure rate is low, easy to maintenance, and facilitate pipeline to arrange, certainly, those skilled in the art are known, first water pump 19 also can be other high-pressure hydraulic pumps.
As shown in Figure 3, in the present embodiment, pipeline between the thermal low-pressure separators 3 of isomerization dewaxing device and the second air cooler 10 of isomerization dewaxing device is provided with the second water inlet 15, condensate water pipe 18 is connected with the second water inlet 15, and condensate water pipe 18 is provided with the second water pump 20, the amount of the demineralized water in the pipeline entering between thermal low-pressure separators 3 and the second air cooler 10 by the second water inlet 15 is supplemented by condensate water, wherein, second water pump 20 is centrifugal pump, noise is low, failure rate is low, easy to maintenance, and facilitate pipeline to arrange, certainly, those skilled in the art are known, second water pump 20 also can be other high-pressure hydraulic pumps.
As shown in Figure 4, in the present embodiment, isomerization dewaxing device also comprises condensate-water polishing tank 13 and flow control valve 16, and condensate-water polishing tank 13 and flow control valve 16 are separately positioned on condensate water pipe, and flow control valve 16 is near the outlet of condensate-water polishing tank 13.
Condensate water is reclaimed by condensate-water polishing tank 13, when not needing in the short time to use demineralized water, condensate-water polishing being got up for subsequent use by condensate-water polishing tank 13, being also used as other purposes by simply processing the condensate water in condensate-water polishing tank 13.And by arranging flow control valve 16 on the pipeline be connected with the outlet of condensate-water polishing tank 13, be convenient to regulate the flow of the condensate water entering water injection tank 8, thus control the content entering condensate water in the demineralized water in the pipeline in the pipeline between high pressure hot separator 1 and the first air cooler 9 and between thermal low-pressure separators 3 and the second air cooler 10, and then the content of the sulphur controlled in demineralized water and nitrogen.
Certain hydroisomerization dewax device of 500,000 tons/year, the isomerization dewaxing device process hydrocracking tail oil using the utility model to provide, can save demineralized water consumption 2.5 ten thousand tons/year.Certain hydroisomerization dewax device of 500,000 tons/year, process Daqing crude oil reduced pressure distillate, can save demineralized water consumption 30,000 tons/year.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an isomerization dewaxing device, is characterized in that, the condensate water outlet of the return tank of described isomerization dewaxing device is communicated with through the water injection tank of condensate water pipe with described isomerization dewaxing device.
2. isomerization dewaxing device according to claim 1, is characterized in that, the condensate water outlet of described return tank is connected through the water inlet of condensate water pipe with described water injection tank.
3. isomerization dewaxing device according to claim 2, is characterized in that, described condensate water pipe is provided with low-lift pump.
4. isomerization dewaxing device according to claim 1, it is characterized in that, pipeline between the high pressure hot separator of described isomerization dewaxing device and the first air cooler of described isomerization dewaxing device is provided with the first water inlet, described condensate water pipe is connected with described first water inlet, and described condensate water pipe is provided with the first water pump.
5. isomerization dewaxing device according to claim 4, is characterized in that, described first water pump is centrifugal pump.
6. isomerization dewaxing device according to claim 1, it is characterized in that, pipeline between the thermal low-pressure separators of described isomerization dewaxing device and the second air cooler of described isomerization dewaxing device is provided with the second water inlet, described condensate water pipe is connected with described second water inlet, and described condensate water pipe is provided with the second water pump.
7. isomerization dewaxing device according to claim 6, is characterized in that, described second water pump is centrifugal pump.
8. the isomerization dewaxing device according to any one of claim 1-7 claim, it is characterized in that, described isomerization dewaxing device also comprises condensate-water polishing tank and flow control valve, described condensate-water polishing tank and described flow control valve are separately positioned on described condensate water pipe, and described flow control valve is near the outlet of described condensate-water polishing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348897.7U CN204767619U (en) | 2015-05-26 | 2015-05-26 | Different structure dewaxing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348897.7U CN204767619U (en) | 2015-05-26 | 2015-05-26 | Different structure dewaxing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204767619U true CN204767619U (en) | 2015-11-18 |
Family
ID=54507751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520348897.7U Expired - Fee Related CN204767619U (en) | 2015-05-26 | 2015-05-26 | Different structure dewaxing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204767619U (en) |
-
2015
- 2015-05-26 CN CN201520348897.7U patent/CN204767619U/en not_active Expired - Fee Related
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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: 20151118 |