CN204203024U - A kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion - Google Patents
A kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion Download PDFInfo
- Publication number
- CN204203024U CN204203024U CN201420557917.7U CN201420557917U CN204203024U CN 204203024 U CN204203024 U CN 204203024U CN 201420557917 U CN201420557917 U CN 201420557917U CN 204203024 U CN204203024 U CN 204203024U
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- Prior art keywords
- autoclave
- oil
- evaluating
- hydrogenation plant
- test
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- Expired - Lifetime
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- 238000005260 corrosion Methods 0.000 title claims abstract description 28
- 230000007797 corrosion Effects 0.000 title claims abstract description 28
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 23
- 238000007670 refining Methods 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 29
- 238000004939 coking Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, comprise autoclave, the kettle cover for being tightly connected with autoclave be made up of resistant material, pressing mechanism, heater block, temperature-control units, test-piece stand, described heater block is controlled by temperature-control units, wherein, the bottom of described autoclave is inverted conical shape, supported by base, be also provided with exhaust-valve in the bottom of autoclave, for discharging the raw material in autoclave; Described kettle cover is arranged at least one interface, for the annex needed for joint test.This device can simulate the reaction conditions in oil refining hydrogenation plant, to measure the fouling corrosion speed of raw material, instructs actual production to operate.
Description
Technical field
The utility model relates to a kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion.
Background technology
Refinery is in processing crude oil process, the boiling range of coking naphtha is generally at 30 DEG C ~ 240 DEG C, and the temperature range of coking naphtha hydrogenation is generally at 200 DEG C ~ 300 DEG C, when when this temperature range, the pressure of coking naphtha can reach 0.5MPa ~ 1.0MPa, now coking naphtha easily carbonization fouling in a device.And the fouling corrosion of production equipment is not only unfavorable to safety in production, and negative effect can be produced to the benefit of oil refining.At present, due to processing crude oil more and more in poor quality, peracid, high-sulfur even chlorinity exceed standard, and more easily cause fouling corrosion, along with the increase of amount of scale buildup, dirt thing can beds blocking gradually, thus makes production equipment pressure drop rise, when pressure drop reaches the higher limit that device bears, will stop work and carry out the process of device catalyzer slash head, substantially reduce the production cycle of production equipment, be therefore necessary to carry out the fouling corrosion evaluation of raw material to equipment, so that research of technique.So-called is measure the fouling corrosion speed of raw material to the fouling corrosion evaluation of equipment, but the reaction environment that not may be used for simulating oil refining hydrogenation plant at present carries out the device of related assays.
Utility model content
The utility model object is to provide a kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, for simulating the reaction conditions in oil refining hydrogenation plant, to measure the fouling corrosion speed of raw material, instructs actual production to operate.
The utility model object is achieved through the following technical solutions: a kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, comprise autoclave, the kettle cover for being tightly connected with autoclave be made up of resistant material, pressing mechanism, heater block, temperature-control units, test-piece stand, described heater block is controlled by temperature-control units; Wherein, the bottom of described autoclave is inverted conical shape, is supported by base, is also provided with exhaust-valve in the bottom of autoclave, for discharging the raw material in autoclave; Described kettle cover is arranged at least one interface, for the annex needed for joint test.
The utility model can simulate the duty of oil refining hydrogenation plant, in use, test oil and test specimen carbon steel lacing film is added in autoclave, then enclosed high pressure still, the temperature and pressure that corrosion and scaling appears in oil is heated to adding test oil in still, after reaction certain hour, take out test specimen carbon steel lacing film, calculated the fouling corrosion speed of test oil by the weight change before and after the reaction of test specimen carbon steel lacing film.
The utility model also comprises thermometer, inserts in autoclave, for measuring the temperature of reaction in autoclave by the interface on described kettle cover.
The utility model can do following improvement: arrange in autoclave still body middle and lower part the thermometer boss that stretches into autoclave, the position of center line of the front end approaching device of this thermometer boss, and be arranged under autoclave adds the liquid level of test oil, described thermometer is inserted this thermometer boss carrying out thermometric to probe in autoclave, the temperature approaches true temperature that can measure like this.
Heater block described in the utility model is be wrapped in the heat tape on whole autoclave outer wall.
Test-piece stand described in the utility model is test specimen hook, and this test specimen hook is fixed on bottom described kettle cover, and its one end with hook extends in autoclave, and be arranged in autoclave add the liquid level of test oil under and be positioned at the top of the front end of thermometer boss.
The utility model also comprises pressure source, and this pressure source is communicated with autoclave by the interface on described kettle cover.
Between autoclave described in the utility model and kettle cover, pad is set, to improve sealing.
the present invention compared with prior art has the following advantages:
The utility model device can simulate coking naphtha hydrogenation reaction situation, test specimen is placed in one, measure after a certain period of time, weight difference before and after test specimen, the fouling corrosion speed of raw material to equipment can be reflected, and close with actual conditions, for the screening of antisludging agent in oil refining hydrogenation process and evaluation, there is the realistic meaning instructing actual production.
Accompanying drawing explanation
Fig. 1 is that this is practical for evaluating the structural representation of feedstock oil to the device of oil refining hydrogenation plant fouling corrosion.
Fig. 2 is that this is practical for evaluating the structural representation cut-open view of feedstock oil to the device (not with heating arrangement and temperature controller) of oil refining hydrogenation plant fouling corrosion.
Embodiment
Shown in Fig. 1 and 2 is an embodiment of the present utility model for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, comprises the autoclave 1 be made up of resistant material, the kettle cover 5, thermometer (not shown), temperature controller 11, heater block 10, test-piece stand, pressure source and the base 3 that are tightly connected with autoclave.Wherein, kettle cover 5 is connected on autoclave 1 hermetically by securing members such as bolts.Between autoclave 1 and kettle cover 5, pad is set, and pad can adopt teflon gasket, asbestos gasket or teflon to sandwich the Composition spacer of asbestos material formation.Base 3 is tripod.
The bottom welding of autoclave 1 is on base 3, and the bottom of autoclave 1 is inverted conical shape, establishes exhaust-valve 4 bottom it, for discharging the raw material in autoclave 1.In autoclave 1 still body middle and lower part, the thermometer boss 9 that stretches into autoclave is set, the position of center line of the front end approaching device of this thermometer boss 9, and be arranged in autoclave 1 add the liquid level of test oil under thermometer is inserted this thermometer boss 9 carrying out thermometric, the temperature approaches true temperature that can measure like this to probe into autoclave 1.Heating arrangement 10 is for being wrapped in the heat tape outside autoclave 1, and this heating arrangement 10 is controlled by temperature controller 11.
Kettle cover 5 is provided with two interfaces, and pressure source is connected with one of them interface by pipeline, and associated line arranges safety valve 6 and tensimeter 7.Another interface is arranged evacuate air valve 2.Test-piece stand is test specimen hook 8, and this test specimen hook 8 is fixed on bottom kettle cover 5, and its one end with hook extends in autoclave 1, and be arranged in autoclave 1 add the liquid level of test oil under and be positioned at the top of the front end of thermometer boss 9.During work, one end that test specimen hook 8 has hook to extend in autoclave 1 and to be immersed in still in test oil.Test specimen hook 8 is provided with two hooks, for hanging sample and control sample.
During test, after adding 1 liter of coking naphtha, two hooks of test specimen hook 8 hang up one respectively and processes (identical with general fouling corrosion method) on request and load weighted No. 20 carbon steel lacing films, quality is respectively m11, m12, then the coking naphtha of autoclave 1 is put into, oil is allowed to flood test specimen, by bolted after flange between autoclave 1 and kettle cover 5 puts pad, then slowly heat up, temperature is made to control at 230 DEG C by temperature controller 11, constant temperature is after 72 hours, stop upper heating, when temperature and pressure returns to normal temperature and pressure, unclamp bolt, take off lacing film with tweezers to weigh, be respectively m21, m22.
Fouling corrosion speed is:
v1=（m21-m11）／72
v2=（m22-m12）／72
v=（v1+v2）／2
The utility model can be summarized with other the concrete form without prejudice to spirit of the present invention or principal character.Above-described embodiment of the present utility model all can only be thought explanation of the present invention instead of restriction, every above embodiment is done according to substantial technological of the present utility model any trickle amendment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (7)
1. one kind for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, comprise autoclave, the kettle cover for being tightly connected with autoclave be made up of resistant material, pressing mechanism, heater block, temperature-control units, test-piece stand, described heater block is controlled by temperature-control units, it is characterized in that, the bottom of described autoclave is inverted conical shape, supported by base, be also provided with exhaust-valve in the bottom of autoclave, for discharging the raw material in autoclave; Described kettle cover is arranged at least one interface, for the annex needed for joint test.
2., according to claim 1 for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, it is characterized in that, also comprise thermometer, for measuring the temperature of reaction in autoclave.
3. according to claim 2 for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, it is characterized in that, described autoclave still body middle and lower part arranges the thermometer boss that stretches into autoclave, the position of center line of the front end approaching device of this thermometer boss, and be arranged under autoclave adds the liquid level of test oil, described thermometer inserts this thermometer boss and carries out thermometric to probe in autoclave.
4., according to claim 1 for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, it is characterized in that, described heater block is be wrapped in the heat tape on whole autoclave outer wall.
5. according to claim 1 for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, it is characterized in that, described test-piece stand is test specimen hook, this test specimen hook is fixed on bottom described kettle cover, its one end with hook extends in autoclave, and be arranged in autoclave add the liquid level of test oil under and be positioned at the top of the front end of thermometer boss.
6., according to claim 1 for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, it is characterized in that, also comprise pressure source, this pressure source is communicated with autoclave by the interface on described kettle cover.
7., according to claim 1 for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion, it is characterized in that, between described autoclave and kettle cover, pad is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557917.7U CN204203024U (en) | 2014-09-26 | 2014-09-26 | A kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557917.7U CN204203024U (en) | 2014-09-26 | 2014-09-26 | A kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203024U true CN204203024U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557917.7U Expired - Lifetime CN204203024U (en) | 2014-09-26 | 2014-09-26 | A kind of for evaluating the device of feedstock oil to oil refining hydrogenation plant fouling corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204203024U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556549A (en) * | 2016-10-28 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of method and apparatus of oil plant air-distillation column overhead scaling rate test |
| CN111198153A (en) * | 2020-01-11 | 2020-05-26 | 长江大学 | Scaling corrosion rate evaluation system for gas well oil casing |
-
2014
- 2014-09-26 CN CN201420557917.7U patent/CN204203024U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556549A (en) * | 2016-10-28 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of method and apparatus of oil plant air-distillation column overhead scaling rate test |
| CN106556549B (en) * | 2016-10-28 | 2019-07-19 | 中国石油化工股份有限公司 | A kind of method and apparatus of oil plant air-distillation column overhead scaling rate test |
| CN111198153A (en) * | 2020-01-11 | 2020-05-26 | 长江大学 | Scaling corrosion rate evaluation system for gas well oil casing |
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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 |
Granted publication date: 20150311 |