CN207108922U - The device of micro-moisture in a kind of removing oil product - Google Patents
The device of micro-moisture in a kind of removing oil product Download PDFInfo
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- CN207108922U CN207108922U CN201721089226.9U CN201721089226U CN207108922U CN 207108922 U CN207108922 U CN 207108922U CN 201721089226 U CN201721089226 U CN 201721089226U CN 207108922 U CN207108922 U CN 207108922U
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- tower
- oil product
- moisture
- charging aperture
- removing micro
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Abstract
The utility model discloses a kind of device for removing micro-moisture in oil product, described device includes the tower one and tower two of series connection, the bottom of tower one is provided with aqueous oil product charging aperture, and upper part discharge port is connected by pipeline with the charging aperture of the bottom of tower two, and the top of tower two sets outlet for product；Wherein salt plug is loaded in tower one, 4A molecular sieves are loaded in tower two, the aqueous oil product charging aperture through tower one by salt plug, is entered aqueous oil product from the upper part discharge port of tower one through pipeline by the bottom charging aperture of tower two successively, and by 4A molecular sieve dehydrations after, the oil product after outlet for product is dehydrated.Salt plug can remove most of moisture in aqueous oil product in tower one, form saturated aqueous common salt and discharged from the bittern outlet of the bottom of tower one；The oil product through dehydration of salt that tower one obtains is again introduced into tower two, obtains being dehydrated oil product after 4A molecular sieve dehydrations, moisture content is reduced to below 40ppm in the dehydration oil product, and reaches as clear as crystal appearance.
Description
Technical field
The utility model belongs to petroleum refining and petrochemical industry, is related to a kind of dehydration device, more particularly to a kind of de-
Except the device of micro-moisture in oil product.
Background technology
Turbid appearance phenomenon, root often occurs during the light-end products productions such as gasoline, boat coal, diesel oil, white oil or storage
Source is wherein to be dissolved with micro-moisture.The aqueous maximum harm of oil product is that metallic oil tank inwall can be caused to get rusty；Moisture is to majority
Additive all plays ill-effect, can bring it about hydrolysis, emulsification, cohesion and separation is produced, so as to cause additive to lose effectiveness；
The presence of water is very harmful for oil supply system, corrosion, abrasion, stuck or even can deteriorate combustion process, influences oil product function
Play.Mainly due to using vapor stripping process in its production process the reason for band water in oil product.
Molecular sieve can be used for the moisture that contains in adsorbing and removing organic matter, 3A molecular sieves commonly used to abjection natural gas,
Micro-moisture in liquefied gas, dry gas, and 4A molecular sieves are usually used to remove micro-moisture in the organic matters such as isopropanol, furfural.
Oil product especially light-end products can also by 4A molecular sieve dehydrations, due to deviate from the regenerating molecular sieve energy consumption of large quantity of moisture compared with
Height, therefore be of little use.
Petrochina (PetroChina Company Ltd.), can be by vapour by the combination of electric dehydration and dehydration of salt system
The mass fraction of water is down to below 300ppm after diesel hydrotreating unit diesel oil dewatering.Liquid-liquid diphase coalescer is usually in vapour, diesel oil
Application in dehydration.These dewatering types have certain effect, but dehydrating effect is frequently subjected to condition limitation.
Yangtze petro-chemical corporation 2# hydrocracking units start experiment production white oil product in March, 2016, using vapor vapour
Diesel component technique is put forward, 50 DEG C or so of white oil outlet temperature, takes coalescer to take off moisture to 50-200ppm, it is still normal
See turbid phenomenon；Be dehydrated, white water content in oil will can be taken off at 50 DEG C by 500ppm to 50ppm or so using salt plug, but when have
Turbid appearance phenomenon.
The content of the invention
In providing a kind of device for removing micro-moisture in oil product, described device can solve the problem that the purpose of this utility model
Oil product is because containing emulsification or turbid phenomenon caused by micro-moisture, effectively reducing trace moisture content in oil product.
For achieving the above object, the utility model adopts the following technical scheme that：
The device of micro-moisture in a kind of removing oil product, it is characterised in that described device includes the tower one and tower two of series connection,
Filling salt plug in tower one, tower two is interior to load 4A molecular sieve columns, and salt plug lower section is provided with aqueous oil product charging aperture, salt plug in the tower one
Top is provided with the discharging opening of tower one, and the described discharging opening of tower one is connected by the charging aperture of tower two below molecular sieve column in pipeline and tower two
Connect, outlet for product is set above molecular sieve column in tower two.
The bottom of the tower one and tower two is respectively arranged with bittern outlet and residual solution outlet, and top is equipped with emptying
Line.
The top of tower one, which is provided with, mends salt mouth, and the top of tower two is provided with standby mouth.
The top of tower two is additionally provided with nitrogen inlet duct road, and the nitrogen inlet duct road is provided with electric pre-heater；Tower two
Bottom is provided with waste nitrogen gas outlet pipe.
The bottom of tower one is additionally provided with bittern liquid level observation pipe.
The aqueous oil product charging aperture upstream of the tower one sets pipeline to connect the charging aperture of tower two；The outlet for product of tower two
Downstream sets pipeline to connect the charging aperture of tower two.
The device of micro-moisture takes double-column in series to be dehydrated separating technology, wherein tower one in removing oil product of the present utility model
Middle filling salt plug, loads 4A molecular sieves in tower two, aqueous oil product successively the aqueous oil product charging aperture through the bottom of tower one by salt plug,
Entered from the upper part discharge port of tower one through pipeline by the bottom charging aperture of tower two, and by 4A molecular sieve dehydrations after, through product discharge
Mouth be dehydrated after oil product.Salt plug can remove most of moisture in aqueous oil product in tower one, form saturated aqueous common salt from tower
The bittern outlet discharge of one bottom；The oil product through dehydration of salt that the upper part discharge port of tower one obtains is again introduced into tower two, through 4A points
Obtain being dehydrated oil product after son sieve dehydration, moisture content is reduced to below 40ppm in the dehydration oil product, and reaches as clear as crystal outer
See effect.
Beneficial effect：Device described in the utility model can solve the problem that oil product product because containing emulsification caused by micro-moisture or
Turbid phenomenon；Moisture in oil product can be effectively reduced, is oil product reliable apparatus of the production compared with low water content；The utility model institute
State device production process and easily realize that steady quality, production cost is low, easy size of the organization and Virtual production, process route
Simply.
Brief description of the drawings
Fig. 1 is a kind of structural representation for removing the device of micro-moisture in oil product described in the utility model；
Wherein, 1 is tower one, and 2 be tower two, and 3 be bittern liquid level observation pipe, and 4 be spark arrester, and 5 be electric pre-heater.
Embodiment
Technical scheme described in the utility model is further described in detail below by specific embodiment, but had
Necessity points out that following examples are served only for the description to the content of the invention, does not form the limitation to scope of protection of the utility model.
Embodiment 1
The device of micro-moisture in a kind of removing oil product, described device include tower 1 and tower 22, loaded in the tower 1
Salt plug, salt plug above and below are respectively equipped with aqueous oil product charging aperture and discharging opening；Filling 4A molecular sieve columns, molecule in tower 22
Sieve post above and below is respectively equipped with charging aperture and outlet for product.Aqueous oil product enters from the aqueous oil product of the bottom of tower 1
Material mouth enters tower 1, and upper part discharge port is connected by pipeline with the charging aperture of the bottom of tower 22, the finished oil product after dehydration from
The outlet for product extraction on the top of tower 22.
The bottom of tower 1 is provided with bittern outlet, and top, which is provided with, mends salt mouth, and bottom is provided with bittern liquid level observation pipe 3；Tower
22 bottoms are provided with residual solution outlet, and top is provided with standby mouth.Tower 1 and the top of tower 22 are equipped with drop out line.
The top of tower 22 is additionally provided with nitrogen inlet duct road, and the nitrogen inlet duct road is provided with electric pre-heater 5；Tower
22 bottoms are additionally provided with waste nitrogen gas outlet pipe, and waste nitrogen gas outlet pipe is provided with spark arrester 4；On the waste nitrogen gas outlet pipe
The upstream of spark arrester 4 is provided with the heat exchanger of Auto-drainage mouth.Nitrogen is after heat exchanger and the heat exchange of waste nitrogen gas through electric pre-heater 5
Enter tower 22 after heating, its role is to 4A molecular sieves are regenerated after long-term operation；Waste nitrogen gas of the waste nitrogen gas from the bottom of tower 22
Outlet pipe discharges tower 22, and torch is removed after spark arrester 4.
The aqueous oil product charging aperture upstream of tower 1 is provided with the pipeline connection charging aperture of tower 22；The top of tower 22 production
Product discharging opening downstream sets pipeline to connect the charging aperture of tower 22.Above-mentioned connection can switch device different operator schemes, increase dress
Put flexibility.
Said apparatus loads salt plug using double-column in series dehydration separating technology, tower one, and tower two loads 4A molecular sieves, wet oil
Product pass sequentially through tower one and tower two, and oil product enters tower one, salt plug removing most of moisture, forms saturated aqueous common salt and sink from bottom to top
Water content by the 4A molecular sieve dehydrations of tower two, is taken off below 40ppm by drop, oil product again.
Yangtze petrochemical industry 2# hydrocracking tests produce two batches white oil sample, and moisture is respectively 475ppm in white oil sample
And 733ppm, turbid appearance.Dehydration, sample containing water white oil are combined using device salt plug described in the utility model and 4A molecular sieves
Middle water content is reduced to 45.62ppm and 61.55ppm, outward appearance still muddiness, then by 4A molecules after salt plug is dehydrated
Sieve is dehydrated, and final moisture content is reduced to 26.42ppm and 26.86ppm in white oil.White oil raw material and process salt plug, molecular sieve
The water content of each stage white oil and other properties are as shown in table 1 after dehydration.
The white oil raw material of table 1 and the water content of white oil and other properties after salt plug, molecular sieve dehydration
。
Claims (8)
1. a kind of device for removing micro-moisture in oil product, it is characterised in that described device includes the tower one (1) and tower two of series connection
(2), filling salt plug in tower one (1), the interior filling 4A molecular sieve columns of tower two (2), the interior salt plug lower section of tower one (1) are provided with wet oil
Product charging aperture, salt plug top are provided with the discharging opening of tower one, and the described discharging opening of tower one passes through under pipeline and the interior molecular sieve column of tower two (2)
The charging aperture of tower two connection of side, the interior molecular sieve column top of tower two (2) set outlet for product.
A kind of 2. device for removing micro-moisture in oil product according to claim 1, it is characterised in that the tower one (1)
Bittern outlet and residual solution outlet are respectively arranged with the bottom of tower two (2), top is equipped with drop out line.
A kind of 3. device for removing micro-moisture in oil product according to claim 1, it is characterised in that the tower one (1)
Top, which is provided with, mends salt mouth, and tower two (2) top is provided with standby mouth.
A kind of 4. device for removing micro-moisture in oil product according to claim 1, it is characterised in that the tower two (2)
Top is additionally provided with nitrogen inlet duct road, and the nitrogen inlet duct road is provided with electric pre-heater (5)；Tower two (2) bottom is provided with useless
Nitrogen out of the trachea road.
5. a kind of device for removing micro-moisture in oil product according to claim 4, it is characterised in that the waste nitrogen gas goes out
Feed channel is provided with spark arrester (4).
A kind of 6. device for removing micro-moisture in oil product according to claim 1, it is characterised in that the tower one (1)
Bottom is additionally provided with bittern liquid level observation pipe (3).
A kind of 7. device for removing micro-moisture in oil product according to claim 1, it is characterised in that the tower one (1)
Aqueous oil product charging aperture upstream set pipeline connect the charging aperture of tower two.
A kind of 8. device for removing micro-moisture in oil product according to claim 1, it is characterised in that the tower two (2)
Outlet for product downstream set pipeline connect the charging aperture of tower two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089226.9U CN207108922U (en) | 2017-08-28 | 2017-08-28 | The device of micro-moisture in a kind of removing oil product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089226.9U CN207108922U (en) | 2017-08-28 | 2017-08-28 | The device of micro-moisture in a kind of removing oil product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207108922U true CN207108922U (en) | 2018-03-16 |
Family
ID=61585470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721089226.9U Active CN207108922U (en) | 2017-08-28 | 2017-08-28 | The device of micro-moisture in a kind of removing oil product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207108922U (en) |
-
2017
- 2017-08-28 CN CN201721089226.9U patent/CN207108922U/en active Active
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