CN202131285U - Device for slowing down coking of oil gas pipeline on top of coke tower - Google Patents
Device for slowing down coking of oil gas pipeline on top of coke tower Download PDFInfo
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- CN202131285U CN202131285U CN201120104058U CN201120104058U CN202131285U CN 202131285 U CN202131285 U CN 202131285U CN 201120104058 U CN201120104058 U CN 201120104058U CN 201120104058 U CN201120104058 U CN 201120104058U CN 202131285 U CN202131285 U CN 202131285U
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Abstract
The utility model provides a device for slowing down coking of an oil gas pipeline on the top of a coke tower. The device mainly comprises a coke tower top seal head, a main quenching oil pipeline, a quenching oil circulating pipeline, a quenching oil feeding pipeline and an atomizing spray head, wherein the main quenching oil pipeline is connected with the quenching oil circulating pipeline; the quenching oil circulating pipeline is connected with one end of the quenching oil feeding pipeline; the other end of the quenching oil feeding pipeline stretches into the tower after penetrating through the coke tower top seal and is connected with the atomizing spray head; and the quenching oil feeding pipeline is connected with the quenching oil circulating pipeline, the coke tower top seal head and the atomizing spray head through flanges. By the device, the coking of an oil gas outlet pipeline on the top of the coke tower can be effectively avoided or slowed down and the service period of a delayed coking device can be prolonged.
Description
Technical field
The utility model belongs to the petroleum refining technology field, relates to a kind of device that reduces coke cat head oil gas tower exit temperature, specifically, relates to a kind of device that slows down or prevent the coking of coke cat head gas pipeline.
Background technology
Advantages such as that delay coking process has is strong to adaptability to raw material, take off that charcoal is thorough, flow process simple, technology maturation, plant investment are low have become one of important process of heavy oil deep processing.In recent years, along with the heaviness and the deep drawing The Application of Technology of processing crude oil, high carbon residue, high-sulfur, high metal content heavy oil are difficult to the material of mixing as devices such as catalytic cracking, thereby have further promoted the development of delayed coking technology.
In delay coking process; The high-temperature material (mixing oil of raw oil or raw oil and turning oil from the process furnace radiation chamber; Down with) through transfer line from the bottom of coke drum or/and of getting into two coke drums that laterally arrange in top carries out pyrogenic reaction, reaction oil gas carries out fractionation from the cat head separation column that goes out to make a return journey.When a coke drum was full of coke need coke cleaning, raw oil switched in another coke drum again.
For the liquid that improves delayed coking unit is received; Can take to realize through the temperature out that improves process furnace, the measures such as feeding manner that change coke drum, the oil gas temperature that at this moment the coke cat head take place to leave after the pyrogenic reaction up to 445 ℃～480 ℃, although gone out on the tower gas pipeline at cat head at present high-temperature oil gas has been carried out the chilling measure; Temperature to reduce oil gas makes reaction terminating; Slow down coking, but still have coking phenomenon to take place because of the injection mode of quenching oil or injection phase exist defective to make to draw the tower gas pipeline, thus cause out the coking of tower gas pipeline; Cause coke drum to build the pressure when serious, force device to be stopped work.
Patent CN200710118743.9 discloses a kind of device and method of use thereof that prevents the coking of coke drum oil gas vent.This device is included on the gas pipeline of overhead oil gas outlet of coke drum and adopts the quenching oil injection device of two-stage at least.Wherein the injection of the first step is arranged on the oil gas vent place of cat head; Be positioned as close to the cat head end socket of coke drum, can stop pyrogenic reaction as early as possible, quenching oil is mainly concentrated on the oil gas vent place of cat head through the multiple-point injection mode; It is fully contacted with oil gas, reduce the oil gas temperature; The second stage is set on the gas pipeline after the injection of the first step to be injected.Adopt this device can slow down the coking on the tower top outlet gas pipeline, but do not reduce the temperature of coke drum cat head oil gas, promptly in time do not suppress secondary reaction, some coke will be tied inevitably in the gas pipeline exit.
The utility model content
The technical problem that the utility model will solve is that prior art can not reduce the temperature of coke drum cat head oil gas so that in time suppress secondary reaction, thereby effectively slows down the coking of coke drum cat head gas pipeline.In order to solve the problems of the technologies described above; To the high characteristics of coke drum overhead oil temperature degree behind existing delay coking process and the last charging delay coking process of employing; The utility model provides a kind of device that slows down the coking of coke cat head gas pipeline; Can effectively avoid or slow down the coking of cat head oil gas outlet line, prolong the on-stream time of delayed coking unit.
The utility model provides a kind of device that slows down the coking of coke cat head gas pipeline, and this device mainly goes into the tower pipeline by coke drum cat head end socket, quenching oil Trunk Line, quenching oil ring line, quenching oil and atomizer is formed; Wherein the quenching oil Trunk Line links to each other with the quenching oil ring line; The quenching oil ring line is gone into tower pipeline one end with quenching oil and is linked to each other; The other end that quenching oil is gone into the tower pipeline passes coke drum cat head end socket and stretches into Ta Nei and link to each other with atomizer, and quenching oil is gone between tower pipeline and quenching oil ring line, coke drum cat head end socket and the atomizer and all is connected with flange.
The external diameter that described quenching oil is gone into tower pipeline and atomizer is gone into the nominal diameter of tower pipeline and coke drum cat head end socket flange connecting less than quenching oil; And the annular diameter of quenching oil ring line is greater than or less than the diameter that quenching oil is gone into the medullary ray place circumference of tower pipeline; So that go into after bolt and quenching oil on tower pipeline and the quenching oil ring line joint flange go into the bolt on tower pipeline and the coke drum cat head end socket joint flange pulling down quenching oil, quenching oil is gone into the tower pipeline and can be extracted out smoothly.
The number of described atomizer is at least 1, is generally 3～6, uniform distribution.Described atomizer is installed in the position below the 1m of overhead oil gas outlet below, preferred 2m～5m place.
Described atomizer is well known in the art but is not limited to shower nozzle, nozzle and sprinkling equipment etc.; The fan angle of ejection drop is 45 °～120 °; The drop skeletal lines of one or more atomizer ejections covers the cross-sectional area of coke drum; Droplet dia after the dispersion is 20 μ m～2500 μ m, preferred 50 μ m～1000 μ m.
Described quenching oil includes but not limited to diesel oil distillate, stage casing withdrawing oil, wax tailings (gently) and the heavy wax tailings (turning oil) etc. from coking fractional distillation column; Preferred stage casing withdrawing oil, wax tailings and heavy wax tailings.
The described quenching oil temperature of the utility model is 150 ℃～350 ℃, preferred 180 ℃～280 ℃; The flow of quenching oil is 3%～25%, preferred 5%～20% of a device fresh feed amount.
The temperature that the described coke cat head of the utility model oil gas carries out behind the preparatory chilling is 430 ℃～460 ℃, preferred 430 ℃～445 ℃.
The device of the utility model is operated as follows:
1) an amount of quenching oil gets into the quenching oil Trunk Line, gets into the quenching oil ring line then and distributes;
2) get into coke drum by the quenching oil of ring line through going into the tower pipeline from the cat head chilling; Through the ejection of atomizing atomizer, contact then, on the one hand high-temperature oil gas is carried out preparatory chilling with the high-temperature oil gas that rises; On the other hand high-temperature oil gas is washed, to reduce the amount of carrying of coke powder.
The utility model compared with prior art has the following advantages:
1) spray into quenching oil from the top of coke drum or top after, on the one hand high-temperature oil gas is lowered the temperature, stop as early as possible or suppress pyrogenic reaction, thereby reduce high-temperature oil gas coking on its tower top outlet pipeline; And on the other hand the high-temperature oil gas that rises in the tower is washed, reduced the amount of carrying of coke powder.
2) improve the character that tower height temperature oil gas, can slow down the coking at the bottom of the separation column.
3) reduced the oil gas temperature of coke cat head, proceeded pyrogenic reaction in the tower, recycle ratio is reduced, thereby reduced the power consumption of polymer processing of device, maybe can improve the working ability of device thereby make to stay than last running.
Description of drawings
Fig. 1 is the structural representation of the device that provides of the utility model;
Fig. 2 is the distribution schematic diagram of the utility model atomizer;
Fig. 3 is that the utility model is gone into tower quenching oil dispersion effect synoptic diagram;
Fig. 4 is the upward view of Fig. 3.
Among the figure: 1-quenching oil Trunk Line, 2-quenching oil ring line, the 3-quenching oil is gone into the tower pipeline, 4-atomizer, 5-flange, 6-flange, 7-flange, 8-coke drum cat head end socket, 9-coke drum
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.As shown in Figure 1, quenching oil Trunk Line 1 links to each other with quenching oil ring line 2; Quenching oil is gone into tower pipeline 3 and is linked to each other with quenching oil ring line 2 through flange 7, links to each other with coke drum cat head end socket 8 through flange 6, links to each other with atomizer 4 through flange 5; Atomizer 4 is 3, and uniform distribution is as shown in Figure 2.The wax tailings that accounts for coker feed 5%～20%, temperature and be 200 ℃ gets into from quenching oil Trunk Line 1 as quenching oil; Go into tower pipeline 3 and atomizer 4 is gone into tower through quenching oil ring line 2, quenching oil; Carry out chilling and washing to going out tower height temperature oil gas; Oil gas temperature after chilling and washing is 430 ℃～460 ℃, goes out tower oil gas going out to adopt conventional method chilling on the tower pipeline again, goes coking fractional distillation column to separate then; Wherein, the fan angle that three nozzles are gone into tower ejection drop is 45 °～120 ° (as shown in Figure 3), and the drop skeletal lines of ejection covers the cross-sectional area (as shown in Figure 4) of coke drum 9, and the droplet dia after the dispersion is 20 μ m～2500 μ m.
Claims (7)
1. a device that slows down the coking of coke cat head gas pipeline is characterized in that, this device mainly goes into the tower pipeline by coke drum cat head end socket, quenching oil Trunk Line, quenching oil ring line, quenching oil and atomizer is formed; Wherein the quenching oil Trunk Line links to each other with the quenching oil ring line; The quenching oil ring line is gone into tower pipeline one end with quenching oil and is linked to each other; The other end that quenching oil is gone into the tower pipeline passes coke drum cat head end socket and stretches into Ta Nei and link to each other with atomizer, and quenching oil is gone between tower pipeline and quenching oil ring line, coke drum cat head end socket and the atomizer and all is connected with flange.
2. device according to claim 1; It is characterized in that; The external diameter that described quenching oil is gone into tower pipeline and atomizer is gone into the nominal diameter of tower pipeline and coke drum cat head end socket flange connecting less than quenching oil, and the annular diameter of quenching oil ring line is greater than or less than the diameter that quenching oil is gone into the medullary ray place circumference of tower pipeline.
3. device according to claim 1 and 2 is characterized in that, the number of described atomizer is at least 1.
4. device according to claim 3 is characterized in that, the number of described atomizer is 3～6, uniform distribution.
5. device according to claim 1 and 2 is characterized in that, described atomizer is installed in the position below the 1m of overhead oil gas outlet below.
6. device according to claim 5 is characterized in that, described atomizer is installed in 2m～5m place, overhead oil gas outlet below.
7. device according to claim 1 and 2 is characterized in that, the fan angle of described atomizer ejection drop is 45 °～120 °, and the drop skeletal lines of ejection covers the cross-sectional area of coke drum, and the droplet dia after the dispersion is 20 μ m～2500 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120104058U CN202131285U (en) | 2011-04-12 | 2011-04-12 | Device for slowing down coking of oil gas pipeline on top of coke tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120104058U CN202131285U (en) | 2011-04-12 | 2011-04-12 | Device for slowing down coking of oil gas pipeline on top of coke tower |
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| Publication Number | Publication Date |
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| CN202131285U true CN202131285U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120104058U Expired - Lifetime CN202131285U (en) | 2011-04-12 | 2011-04-12 | Device for slowing down coking of oil gas pipeline on top of coke tower |
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| CN (1) | CN202131285U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449829A (en) * | 2013-09-16 | 2015-03-25 | 中国石油化工股份有限公司 | Coking delaying method |
| CN104449830A (en) * | 2013-09-16 | 2015-03-25 | 中国石油化工股份有限公司 | Coking delaying method |
| CN105623693A (en) * | 2014-10-31 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing raw material for needle-like coke |
| CN105623691A (en) * | 2014-10-31 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing raw material for needle-like coke |
| CN105623692A (en) * | 2014-10-31 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing raw material for needle-like coke |
| CN105985803A (en) * | 2015-02-10 | 2016-10-05 | 中国石油化工股份有限公司 | Method for preparing needle coke raw material |
| CN105985802A (en) * | 2015-02-10 | 2016-10-05 | 中国石油化工股份有限公司 | Delayed coking method |
| CN105985791A (en) * | 2015-02-10 | 2016-10-05 | 中国石油化工股份有限公司 | Method for preparing needle coke raw material |
| CN105623734B (en) * | 2014-10-31 | 2017-06-30 | 中国石油化工股份有限公司 | A kind of method for preparing needle-shape coke raw material |
| CN107541239A (en) * | 2016-06-29 | 2018-01-05 | 中国石油天然气股份有限公司 | Steam thermal cracking analogue experiment installation and technique |
| CN107541240A (en) * | 2016-06-29 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of steam thermal cracking analogue experiment installation and technique |
| CN107541238A (en) * | 2016-06-29 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of thermal cracking analogue experiment installation and method |
| CN112375586A (en) * | 2020-11-13 | 2021-02-19 | 浙江石油化工有限公司 | Novel coke tower quench oil injection device |
| CN114276831A (en) * | 2021-12-30 | 2022-04-05 | 东营联合石化有限责任公司 | Anti-coking device for oil-gas line on top of coke tower |
-
2011
- 2011-04-12 CN CN201120104058U patent/CN202131285U/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449829B (en) * | 2013-09-16 | 2017-01-25 | 中国石油化工股份有限公司 | Coking delaying method |
| CN104449830A (en) * | 2013-09-16 | 2015-03-25 | 中国石油化工股份有限公司 | Coking delaying method |
| CN104449829A (en) * | 2013-09-16 | 2015-03-25 | 中国石油化工股份有限公司 | Coking delaying method |
| CN104449830B (en) * | 2013-09-16 | 2017-01-25 | 中国石油化工股份有限公司 | Coking delaying method |
| CN105623693A (en) * | 2014-10-31 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing raw material for needle-like coke |
| CN105623691A (en) * | 2014-10-31 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing raw material for needle-like coke |
| CN105623692A (en) * | 2014-10-31 | 2016-06-01 | 中国石油化工股份有限公司 | Method for preparing raw material for needle-like coke |
| CN105623693B (en) * | 2014-10-31 | 2018-07-31 | 中国石油化工股份有限公司 | A method of preparing needle-shape coke raw material |
| CN105623734B (en) * | 2014-10-31 | 2017-06-30 | 中国石油化工股份有限公司 | A kind of method for preparing needle-shape coke raw material |
| CN105985803A (en) * | 2015-02-10 | 2016-10-05 | 中国石油化工股份有限公司 | Method for preparing needle coke raw material |
| CN105985791A (en) * | 2015-02-10 | 2016-10-05 | 中国石油化工股份有限公司 | Method for preparing needle coke raw material |
| CN105985803B (en) * | 2015-02-10 | 2017-11-24 | 中国石油化工股份有限公司 | A kind of method for preparing needle-shape coke raw material |
| CN105985802B (en) * | 2015-02-10 | 2017-12-22 | 中国石油化工股份有限公司 | A kind of method of delayed coking |
| CN105985802A (en) * | 2015-02-10 | 2016-10-05 | 中国石油化工股份有限公司 | Delayed coking method |
| CN105985791B (en) * | 2015-02-10 | 2018-11-02 | 中国石油化工股份有限公司 | A method of preparing needle-shape coke raw material |
| CN107541239A (en) * | 2016-06-29 | 2018-01-05 | 中国石油天然气股份有限公司 | Steam thermal cracking analogue experiment installation and technique |
| CN107541240A (en) * | 2016-06-29 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of steam thermal cracking analogue experiment installation and technique |
| CN107541238A (en) * | 2016-06-29 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of thermal cracking analogue experiment installation and method |
| CN107541239B (en) * | 2016-06-29 | 2019-06-11 | 中国石油天然气股份有限公司 | Steam thermal cracking imitative experimental appliance and technique |
| CN107541238B (en) * | 2016-06-29 | 2019-09-03 | 中国石油天然气股份有限公司 | A kind of thermal cracking imitative experimental appliance and method |
| CN112375586A (en) * | 2020-11-13 | 2021-02-19 | 浙江石油化工有限公司 | Novel coke tower quench oil injection device |
| CN114276831A (en) * | 2021-12-30 | 2022-04-05 | 东营联合石化有限责任公司 | Anti-coking device for oil-gas line on top of coke tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Patentee after: Sinopec Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group Patentee before: Sinopec Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |