CN211677049U - Loose blowback medium production device - Google Patents
Loose blowback medium production device Download PDFInfo
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- CN211677049U CN211677049U CN201921980257.2U CN201921980257U CN211677049U CN 211677049 U CN211677049 U CN 211677049U CN 201921980257 U CN201921980257 U CN 201921980257U CN 211677049 U CN211677049 U CN 211677049U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000006096 absorbing agent Substances 0.000 claims abstract description 39
- 230000002745 absorbent Effects 0.000 claims abstract description 32
- 239000002250 absorbent Substances 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 142
- 238000001816 cooling Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000009102 absorption Effects 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 239000003502 gasoline Substances 0.000 claims description 9
- 238000006477 desulfuration reaction Methods 0.000 claims description 8
- 230000023556 desulfurization Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000003915 liquefied petroleum gas Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 239000002283 diesel fuel Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000009103 reabsorption Effects 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 abstract description 21
- 230000009849 deactivation Effects 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010019332 Heat exhaustion Diseases 0.000 description 1
- 206010019345 Heat stroke Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a not hard up blowback medium apparatus for producing, include: the first absorber is provided with a first input port, a second input port and a first output port, the first input port can continuously input rich gas, the second input port can continuously input a first absorbent, and the first output port can output lean gas; the second absorber is provided with a third input port, a fourth input port and a second output port, the third input port is communicated with the first output port, the fourth input port can continuously input the second absorbent, and the second output port can output dry gas; and the distribution pipeline is used for connecting the second output port to the reaction system to be input. The utility model discloses can continuously produce stable dry gas and carry for waiting to input reaction system, replace steam with dry gas, avoid catalyst and steam contact catalyst hydrothermal deactivation and the heat that causes to collapse the loss, cause reaction system to stop production when having avoided catalyst and mud that steam caused to block up and having met the public trouble that stops steam.
Description
Technical Field
The utility model belongs to the technical field of not hard up blowback medium production technique and specifically relates to a not hard up blowback medium apparatus for producing.
Background
The main function of the loose back-blowing medium is to increase the fluidization effect of the catalyst, and the loose back-blowing medium is generally arranged at a position with poor fluidization effect, such as deviation of the flowing direction of the catalyst or over-high bed reserve.
At present, the commonly used loose back-blowing medium is low-pressure superheated steam. However, the contact of the high-temperature catalyst with steam causes hydrothermal deactivation and thermal runaway loss of the catalyst, and the catalyst activity is reduced and fine particles are formed and run away. In addition, the steam temperature is too low to carry water, causing plugging of the catalyst and mud, affecting fluidization. And when a public fault of stopping steam is met, the steam cannot be supplied to the reaction system in time, so that the production is stopped.
Therefore, the technical problem to be solved by the skilled person is how to avoid the hydrothermal deactivation and the heat collapse loss of the catalyst caused by the contact between the loose blowback medium and the steam, avoid the blockage of the catalyst and the mud caused by the steam, and avoid the shutdown of the reaction system caused by the common fault of the steam shutdown.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a not hard up blowback medium apparatus for producing to avoid catalyst hydrothermal deactivation and the heat that catalyst and steam contact caused to collapse the loss, avoid catalyst and mud that steam caused to block up and avoid meetting the public trouble that stops steam and cause reaction system shutdown.
In order to achieve the above object, the present invention provides the following solutions:
the utility model provides a not hard up blowback medium apparatus for producing, include:
the gas absorption device comprises a first absorber, a second absorber and a first output port, wherein the first absorber is provided with a first input port, a second input port and a first output port, the first input port can continuously input rich gas, the second input port can continuously input a first absorbent, the rich gas can generate lean gas under the absorption action of the first absorbent, and the first output port can output the lean gas;
the second absorber is provided with a third input port, a fourth input port and a second output port, the third input port is communicated with the first output port, the fourth input port can continuously input the second absorbent, the lean gas can generate dry gas under the absorption action of the second absorbent, and the second output port can output the dry gas;
and the distribution pipeline is used for connecting the second output port to the reaction system to be input.
Preferably, in the above-mentioned loose blowback medium production device, the first absorbent comprises naphtha and stabilized gasoline; and/or
The second absorbent is light diesel oil.
Preferably, in the above loose blowback medium production apparatus, the first absorber is an absorption tower; and/or
The second absorber is a reabsorber.
Preferably, in the above-mentioned loose blowback medium production device, further comprising a dry gas liquid separation tank;
and the inlet of the dry gas liquid separation tank is communicated with the second output port, and the outlet of the dry gas liquid separation tank is communicated with the inlet of the distribution pipeline.
Preferably, in the loose back-flushing medium production device, the first outlet of the distribution pipeline is communicated with the inlet of the liquefied petroleum gas desulfurization device of the reaction system;
and a second outlet of the distribution pipeline is communicated with a main riser loose steam pipeline and an auxiliary riser nitrogen purging pipeline of the reaction system.
Preferably, in the above loose blowback medium production device, an oil-gas separator is further included;
a gas outlet of the oil-gas separator is communicated with a first input port of the first absorber;
the inlet of the oil-gas separator can be continuously filled with the rich gas.
Preferably, in the above loose blowback medium production device, a cooling device is further included;
the outlet of the cooling device is communicated with the inlet of the oil-gas separator;
the inlet of the cooling device can continuously feed the rich gas.
Preferably, in the above-mentioned loose blowback medium production apparatus, the cooling apparatus includes:
the outlet of the rich gas water cooler is communicated with the inlet of the oil-gas separator;
and the inlet of the rich gas water cooler is communicated with the rich gas air cooler, and the rich gas air cooler is communicated with the rich gas compressor.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
Without being limited to any theory, it can be seen from the above disclosure that, in a specific embodiment, the present invention discloses a loosening and back-blowing medium production device, when in use, continuously inputting a rich gas (comprising C1-C5) into a first absorber through a first input port, and simultaneously, continuously inputting a first absorbent into the first absorber through a second input port, wherein the first absorbent absorbs C4 and C5 in the rich gas, so that the rich gas generates a lean gas (comprising C1-C3); then, the lean gas enters a second absorber through a first output port on the first absorber and a third input port on the second absorber, and the second absorber absorbs C3 in the lean gas, so that the lean gas generates a stable dry gas (the components comprise C1 and C2); and finally, continuously conveying the dry gas serving as a loosening back-blowing medium to a reaction system to be input through a distribution pipeline. The utility model discloses can continuously produce stable dry gas and carry for waiting to input reaction system, replace steam with dry gas, avoid catalyst and steam contact catalyst hydrothermal deactivation and the heat that causes to collapse the loss, avoid catalyst and mud that steam caused to block up, still avoided causing reaction system to stop production when meetting the public fault that stops steam.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only examples of the invention, from which other embodiments of the invention can be derived without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a loose blowback medium production device provided by an embodiment of the present invention.
Wherein,
the device comprises a first absorber 1, a second absorber 2, a distribution pipeline 3, a dry gas liquid separation tank 4, a liquefied petroleum gas desulfurization device 5, a main riser loose steam pipeline 6, an auxiliary riser nitrogen purging pipeline 7, an oil-gas separator 8, a rich gas water cooler 9 and a rich gas air cooler 10.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
The terms used in this disclosure have their conventional meanings in the art to which they pertain. Definitions of several terms are given herein in the present disclosure. If the conventional meaning of the term is inconsistent with the definitions herein, the definitions herein control.
The term "rich gas" as used herein includes C1-C5.
The term "lean gas" as used herein includes C1-C3.
The term "dry gas" as used herein includes C1 and C2.
As used herein, the term "naphtha" is the common name for naphtha (petroleum or ligroin) and refers to unrefined gasoline from distillation, cracking, etc. units that contain small amounts of impurities.
The term "stabilized gasoline" as used herein refers to stabilized gasoline formed from light hydrocarbons from which naphtha is removed.
As used herein, the term "light diesel fuel" refers to a relatively light density diesel fuel, typically 180-370 ℃ distillate.
Example 1
As shown in figure 1, the utility model provides a loose blowback medium production device. The loosening and back-blowing medium production device comprises a first absorber 1, a second absorber 2 and a distribution pipeline 3.
The first absorber 1 is provided with a first input port, a second input port and a first output port, the first input port can continuously input rich gas, the second input port can continuously input the first absorbent, the rich gas can generate lean gas under the absorption action of the first absorbent, and the first output port can output the lean gas.
And a third input port, a fourth input port and a second output port are formed in the second absorber 2, the third input port is communicated with the first output port, the fourth input port can continuously input a second absorbent, the lean gas can generate dry gas under the absorption action of the second absorbent, and the second output port can output the dry gas.
The distribution pipeline 3 is used for connecting the second output port to the reaction system to be input.
The utility model discloses a not hard up blowback medium apparatus for producing, when using, continuously input rich gas and first absorbent to first absorber 1, C4 and C5 in the rich gas are absorbed to first absorbent for rich gas generates lean gas; then, inputting the lean gas and a second absorbent into a second absorber 2, wherein the second absorbent absorbs C3 in the lean gas, so that the lean gas generates a stable dry gas; and finally, continuously conveying the dry gas serving as a loosening back-blowing medium to a reaction system to be input through a distribution pipeline 3. The utility model discloses can continuously produce stable dry gas and carry for waiting to input reaction system, replace steam with dry gas, avoid catalyst and steam contact catalyst hydrothermal deactivation and the heat that causes to collapse the loss, avoid catalyst and mud that steam caused to block up, still avoided causing reaction system to stop production when meetting the public fault that stops steam.
Example 2
The utility model provides a second embodiment, the structure of the total organic carbon analysis appearance calibrating device of pure water in this embodiment and the total organic carbon analysis appearance calibrating device of pure water in the embodiment one is similar, just no longer has been repeated the same part, only introduces the difference.
In the embodiment, the first absorbent comprises crude gasoline and stabilized gasoline, and the second absorbent is light diesel oil. It should be noted that the first absorbent and the second absorbent may also include other components, as long as the first absorbent and the second absorbent can absorb C4 and C5 in the rich gas or C3 in the lean gas respectively, which are all within the protection scope of the present invention.
Further, the utility model discloses a first absorber 1 is the absorption tower, and second absorber 2 is the reabsorption tower. It should be noted that the first absorber 1 and the second absorber 2 may be other devices, and the second absorber 2 that the first absorber 1 can absorb C4 and C5 in the rich gas and the second absorber 2 that the second absorber can absorb C3 in the lean gas are all within the scope of the present invention.
Further, the utility model discloses a not hard up blowback medium apparatus for producing still includes dry gas and divides liquid jar 4, and the entry and the second delivery outlet of dry gas branch liquid jar 4 switch on, and the export of dry gas branch liquid jar 4 switches on with the entry of distribution pipeline 3. The dry gas can be condensed in the dry gas separating tank 4 and then is divided into two paths, one path is used for pre-lifting the dry gas, and the other path is sent to the dry gas and liquefied petroleum gas desulfurization device 5 for desulfurization.
Further, the utility model discloses a first export of distribution pipeline 3 switches on with reaction system's liquefied petroleum gas desulphurization unit 5's entry, and the second export of distribution pipeline 3 switches on with the not hard up steam line of main riser 6 of reaction system and vice riser nitrogen gas purge pipeline 7 to the realization falls into two the tunnel with the dry gas, does all the way and promotes the dry gas in advance, and another way is sent to dry gas and the 5 desulfurization of liquefied petroleum gas desulphurization unit.
Further, the utility model discloses a not hard up blowback medium apparatus for producing still includes oil and gas separator 8, and oil and gas separator 8's gas outlet switches on with the first input port of first absorber 1, and oil and gas separator 8's entry can continuously let in rich gas. The oil-gas separator 8 is also provided with a liquid outlet, and acidic water in the oil-gas separator 8 can be discharged out of the oil-gas separator 8 through the liquid outlet.
Further, the utility model discloses a not hard up blowback medium apparatus for producing still includes cooling device, and cooling device's export switches on with oil and gas separator 8's entry, and cooling device's entry can continuously let in rich gas. The cooling device can cool the rich gas introduced into the oil-gas separator 8 first.
Further, the utility model discloses a cooling device includes rich gas water cooler 9 and rich gas air cooler 10, carries out the air cooling to rich gas earlier, carries out the water-cooling again, cools off to in 40 degrees rethread oil and gas separator 8. The outlet of the rich gas water cooler 9 is communicated with the inlet of the oil-gas separator 8, the inlet of the rich gas water cooler 9 is communicated with the rich gas air cooler 10, and the rich gas air cooler 10 is communicated with the rich gas compressor. Specifically, the rich gas water cooler 9 is a compressed rich gas condensation cooler, and the rich gas air cooler 10 is a compressed rich gas dry air cooler.
When the utility model is used, the rich gas from the oil-gas separator on the top of the fractionating tower enters the second section of the gas compressor, and the outlet pressure of the second section is 1.6MPa (absolute pressure). The rich gas at the second section outlet of the gas compressor, the top gas of the desorption tower and the rich gas washing water are converged together and cooled in a compressed rich gas dry-type air cooler, and then the rich gas dry-type air cooler is mixed with the bottom oil of the absorption tower, cooled to 40 ℃ by a compressed rich gas condensing cooler and enters an oil-gas separator 8 for gas-liquid separation. The separated gas enters an absorption tower and is absorbed by using crude gasoline and stable gasoline as absorbents, and heat released in the absorption process is taken away by two middle sections in a backflow mode. The lean gas is sent to a reabsorption tower, light diesel oil is used as an absorbent for further absorption, the dry gas is separated from the top of the tower, the condensed liquid is separated out by a dry gas liquid separating tank 4 and then is divided into two paths, one path is used as the pre-lifting dry gas, and the other path is sent to a dry gas and liquefied petroleum gas desulfurization device 5 for desulfurization. And a pre-fabricated pipeline on the pre-lifting dry gas pipeline is connected to a main lifting pipe loosening steam pipeline 6 and an auxiliary lifting pipe nitrogen purging pipeline 7, so that the dry gas is conveyed as a loosening and back-blowing medium of the reaction system.
The utility model has the advantages of as follows:
(1) the device is used for generating dry gas to replace steam to serve as a loosening and back-blowing medium, so that an aerobic environment can not be provided for combustible gas, and the operation is safer.
(2) The steam consumption and the sewage production of the device are saved, the environmental protection pressure is reduced, and the environmental protection requirement is met.
(3) The activity of the catalyst is not influenced, and the conversion rate is improved.
(4) The consumption of steam is reduced, and the generation amount of acid water is reduced.
(5) The analytical data for the gas phase components are more representative.
In the present invention, "first", "second", etc. are all distinguished in description, and have no other special meaning.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims (8)
1. A loose blowback medium production device is characterized by comprising:
the gas absorption device comprises a first absorber (1), wherein a first input port, a second input port and a first output port are formed in the first absorber (1), the first input port can continuously input rich gas, the second input port can continuously input a first absorbent, the rich gas can generate lean gas under the absorption action of the first absorbent, and the first output port can output the lean gas;
the second absorber (2) is provided with a third input port, a fourth input port and a second output port, the third input port is communicated with the first output port, the fourth input port can be used for continuously inputting a second absorbent, the lean gas can be used for generating dry gas under the absorption action of the second absorbent, and the second output port can be used for outputting the dry gas;
and the distribution pipeline (3) is used for connecting the second output port to the reaction system to be input.
2. The apparatus for producing back-flushing media from loosening of claim 1, wherein the first absorbent comprises naphtha and stabilized gasoline; and/or
The second absorbent is light diesel oil.
3. The loose blow back medium production device according to claim 1, wherein the first absorber (1) is an absorber tower; and/or
The second absorber (2) is a reabsorption tower.
4. The loose blowback medium production device of claim 1, further comprising a dry gas liquid separation tank (4);
the inlet of the dry gas liquid separation tank (4) is communicated with the second output port, and the outlet of the dry gas liquid separation tank (4) is communicated with the inlet of the distribution pipeline (3).
5. The apparatus for producing back-flushing medium with loosening as set forth in claim 4, wherein the first outlet of the distribution pipe (3) is communicated with the inlet of the liquefied petroleum gas desulfurization device (5) of the reaction system;
and a second outlet of the distribution pipeline (3) is communicated with a main riser loose steam pipeline (6) and an auxiliary riser nitrogen purging pipeline (7) of the reaction system.
6. The loose blow back medium production device according to any of the claims 1 to 5, further comprising an oil-gas separator (8);
a gas outlet of the oil-gas separator (8) is communicated with a first input port of the first absorber (1);
the inlet of the oil-gas separator (8) can be continuously introduced with the rich gas.
7. The apparatus for producing back-flushing media with loosening of claim 6, further comprising a cooling device;
the outlet of the cooling device is communicated with the inlet of the oil-gas separator (8);
the inlet of the cooling device can continuously feed the rich gas.
8. The apparatus for producing back-flushing loosened media according to claim 7, wherein the cooling means comprises:
the outlet of the rich gas water cooler (9) is communicated with the inlet of the oil-gas separator (8);
the air-cooled air conditioner is characterized by comprising a rich air cooler (10), wherein an inlet of the rich air water cooler (9) is communicated with the rich air cooler (10), and the rich air cooler (10) is communicated with a rich air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921980257.2U CN211677049U (en) | 2019-11-16 | 2019-11-16 | Loose blowback medium production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921980257.2U CN211677049U (en) | 2019-11-16 | 2019-11-16 | Loose blowback medium production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211677049U true CN211677049U (en) | 2020-10-16 |
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ID=72787106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921980257.2U Expired - Fee Related CN211677049U (en) | 2019-11-16 | 2019-11-16 | Loose blowback medium production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211677049U (en) |
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2019
- 2019-11-16 CN CN201921980257.2U patent/CN211677049U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 Termination date: 20211116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |