CN203923103U - A kind of delayed coking washing device with many washing sections - Google Patents
A kind of delayed coking washing device with many washing sections Download PDFInfo
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- CN203923103U CN203923103U CN201420338264.3U CN201420338264U CN203923103U CN 203923103 U CN203923103 U CN 203923103U CN 201420338264 U CN201420338264 U CN 201420338264U CN 203923103 U CN203923103 U CN 203923103U
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- oil
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- spray sparger
- washing
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- 238000005406 washing Methods 0.000 title claims abstract description 87
- 238000004939 coking Methods 0.000 title claims abstract description 33
- 230000003111 delayed effect Effects 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 149
- 239000007921 spray Substances 0.000 claims abstract description 71
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 239000010724 circulating oil Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims description 32
- 230000004907 flux Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000007670 refining Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000000945 filler Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a kind of delayed coking washing device with many washing sections in the Delayed Coking Technology field that belongs to refining of petroleum.The outlet line of the turning oil egress filtering device of this device is divided into three tunnels, the control valve of leading up to returns to Fractionator Bottom, the control valve of leading up to is connected with turning oil product pipeline, lead up to after interchanger and control valve and be connected with the first spray sparger, wax slop pump outlet pipeline is divided into four tunnels, leading up to strainer and control valve is connected with the second spray sparger, UNICOM for subsequent use line and control valve and the circulating oil pump outlet of leading up to is connected, the control valve of leading up to is connected with wax slop product line, lead up to interchanger and control valve and the 3rd spray sparger be connected.Device of the present utility model can prevent separation column coking, prevents that sideline product from carrying coke powder, improves fractionating effect, reduce the carbon residue content of wax oil product, ensure the quality of wax oil product, and can realize ultralow recycle ratio and the operation of zero recycle ratio, improve the total liquid yield of device.
Description
Technical field
The utility model belongs to the Delayed Coking Technology field of refining of petroleum, is specifically related to a kind of delayed coking washing device with many washing sections.
Background technology
Current, because the economic benefit of delayed coking unit glides, reducing recycle ratio becomes an important directions of delayed coking unit increase benefit.Operate and reduce recycle ratio, when particularly ultralow recycle ratio operates (0.05), conventional delayed coker fractionator is easy to occur coking, carry coke powder, the problems such as wax oil poor product quality, therefore in order to pursue higher economic benefit and long period safety in production, the washing section of separation column is had higher requirement.
Conventional delayed coker fractionator washing section operated by rotary motion is in the bottom of separation column, and its effect is and reaction oil gas heat exchange that the coke powder that washing reaction oil gas carries carries with the coke powder that reduces sideline product.In conventional delay coking process flow process, residual oil raw material divides upper and lower two-way to enter separation column, and the washing section of separation column is generally provided with 5-8 layer herringbone baffle plate, adopts residual oil upper feeding as washing oil, reaction oil gas and washing oil be contact heat-exchanging on herringbone baffle plate, and the coke powder carrying in washing reaction oil gas.Described herringbone baffle arrangement is simple, and a just heat-exchange carrier, almost without preventing carrying function and centrifugation.This flow process adopts residual oil as washing oil, because residual oil density is large, carbon residue and heavy metal content high, in the time installing recycle ratio lower than 0.2 operation, residual oil upper feeding amount can obviously reduce, the easy coking of separation column, washing effect variation, most of the coke powder carrying in reaction oil gas washing cannot be removed, cause that sideline product carries coke powder, make quality product variation, and because coke powder carries, can reduce the life-span of downstream production equipment catalyzer.
In order to reduce the problem of separation column bottom coking, CN 1396236A disclose a kind of can flexible recycle ratio the delay coking process of operation, residual oil raw material does not enter separation column, adopt tower at the bottom of turning oil as washing oil.The washing section of this flow process is provided with 5-8 layer herringbone baffle plate too, and an equally just heat-exchange carrier, almost without preventing carrying function and centrifugation.At the bottom of this flow process adopts tower, turning oil is as washing oil, although solved the problem of Fractionator Bottom coking, but because the density of turning oil at the bottom of tower is large, carbon residue and heavy metal content high, and contain a large amount of coke powders, in the time installing recycle ratio lower than 0.15 operation, circulation oil mass as washing oil obviously reduces, washing effect variation, most of the coke powder carrying in reaction oil gas washing cannot be removed equally, cause that sideline product carries coke powder, make quality product variation, and because coke powder carries, can reduce the life-span of downstream production equipment catalyzer.
Utility model content
The utility model is for the defect of prior art, a kind of delayed coking washing device with many washing sections is proposed, it can prevent separation column coking, effectively in washing reaction oil gas, carry coke powder, prevent that sideline product from carrying coke powder, reaction oil gas is carried out to preliminary separation at separation column washing section, improve fractionating effect, reduce the colloid in the gas phase rising, the heavy constituents such as bituminous matter, reduce the carbon residue content of wax oil product, ensure the quality of wax oil product, and part turning oil can be sent outside as product, realize ultralow recycle ratio and the operation of zero recycle ratio, improve the total liquid yield of device.
A kind of delayed coking washing device with many washing sections, separation column 29 bottoms are provided with resid feed line 1, resid feed line 1 top is provided with turning oil oil header 3, the top of turning oil oil header 3 is provided with reaction oil gas line 2, the top of reaction oil gas line 2 is provided with the first spray sparger 13, turning oil oil header 3 is extracted strainer 4 out by turning oil and is connected with circulating oil pump 5, circulating oil pump 5 exports with turning oil egress filtering device 6 and is connected, the outlet line of turning oil egress filtering device 6 is divided into three tunnels, first control valve 7 of leading up to returns to Fractionator Bottom, the 6th control valve 9 of leading up to is connected with turning oil product pipeline 10, lead up to after interchanger 11 and the second control valve 12 and be connected with the first spray sparger 13, the top of the first spray sparger 13 is provided with the first packing layer 14, the top of the first packing layer 14 is provided with the second spray sparger 15, the top of the second spray sparger 15 is provided with heavy gas oil accumulator 16, heavy gas oil accumulator 16 is extracted strainer 17 out by wax slop and is connected with wax slop pump 18, the outlet line of wax slop pump 18 is divided into four tunnels, leading up to strainer 19 and the 3rd control valve 20 is connected with the second spray sparger 15, UNICOM for subsequent use line 21 and the 4th control valve 22 and circulating oil pump 5 outlets of leading up to are connected, the 7th control valve 23 of leading up to is connected with wax slop product line 24, lead up to interchanger 25 and the 5th control valve 26 and the 3rd spray sparger 27 be connected, the 3rd spray sparger 27 is positioned at the top of the second packing layer 28, the second packing layer 28 is positioned at the top of heavy gas oil accumulator 16, the bottom of separation column 29 is provided with furnace charge line 8.
Described the first spray sparger 13 and and turning oil oil header 3 between space form the first washing section, the second spray sparger 15 and the first packing layer 14 forms the second washing section, the 3rd spray sparger 27 and the second packing layer 28 and forms the 3rd washing section.
The shower nozzle number of plies of described the first spray sparger 13, the second spray sparger 15 and the 3rd spray sparger 27 is respectively 1-5 layer.
Described the first spray sparger 13, the second spray sparger 15 and the 3rd spray sparger 27 are made up of distribution pipe and shower nozzle, and the model of three sparger shower nozzles and number can identical can be not identical yet, and the number of shower nozzle is 1-100
Described the first packing layer 14 adopts the grid packing of large flux, and the second packing layer 28 adopts common fillers.
Described UNICOM for subsequent use line 21 interior media can two-way circulate, and nominal situation is closing condition.
Described turning oil oil header 3 and turning oil product line 10 can make device realize zero recycle ratio operation.
Described turning oil oil header 3 is tilting oil header.
The beneficial effects of the utility model: many washing section designs of the present utility model have strengthened the effect of washing section, have prevented that coke powder is carried into separation column washing section top, have greatly reduced the coke powder content that sideline product carries, and have improved the quality product of wax oil.The first washing section adopts hollow-spraying-tower technology, the macrobead coke powder carrying in can washing reaction oil gas, the second washing section adopts spray and grid packing, the small-particle coke powder further carrying in washing reaction oil gas, and having there is certain centrifugation, the 3rd washing section adopts spray and common fillers, the coke powder carrying thoroughly can be removed in reactor, reduce the heavy constituent such as colloid, bituminous matter in the gas phase rising, effectively reduced the carbon residue content of separation column top wax oil product.If part turning oil is sent outside as product, can make device realize zero recycle ratio operation, improve device total liquid yield.Because only having spray sparger, the first washing section of separation column without other column internalss, can prevent the coking of separation column bottom.Turning oil oil header is designed to tilting oil header, can accelerate the liquid-flow on turning oil oil header, prevents the coking of turning oil oil header.
Brief description of the drawings
Fig. 1 is the utility model delayed coking showering washing device structural representation;
In figure, 1-resid feed line, 2-reaction oil gas line, 3-turning oil oil header, 4-turning oil is extracted strainer out, 5-circulating oil pump, 6-turning oil egress filtering device, 7-the first control valve, 8-furnace charge line, 9-the 6th control valve, 10-turning oil product line, 11-interchanger, 12-the second control valve, 13-first sprays sparger, 14-the first packing layer, 15-second sprays sparger, 16-heavy gas oil accumulator, 17-wax slop is extracted strainer out, 18-wax slop pump, 19-washing oil strainer, 20-the 3rd control valve, 21-UNICOM for subsequent use line, 22-the 4th control valve, 23-the 7th control valve, 24-wax slop product line, 25-interchanger, 26-the 5th control valve, 27-the 3rd spray sparger, 28-the second packing layer, 29-separation column.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1
A kind of delayed coking washing device with many washing sections, as shown in Figure 1, separation column 29 bottoms are provided with resid feed line 1, resid feed line 1 top is provided with turning oil oil header 3, the top of turning oil oil header 3 is provided with reaction oil gas line 2, the top of reaction oil gas line 2 is provided with the first spray sparger 13, turning oil oil header 3 is extracted strainer 4 out by turning oil and is connected with circulating oil pump 5, circulating oil pump 5 exports with turning oil egress filtering device 6 and is connected, the outlet line of turning oil egress filtering device 6 is divided into three tunnels, first control valve 7 of leading up to returns to Fractionator Bottom, the 6th control valve 9 of leading up to is connected with turning oil product pipeline 10, lead up to after interchanger 11 and the second control valve 12 and be connected with the first spray sparger 13, the top of the first spray sparger 13 is provided with the first packing layer 14, the top of the first packing layer 14 is provided with the second spray sparger 15, the top of the second spray sparger 15 is provided with heavy gas oil accumulator 16, heavy gas oil accumulator 16 is extracted strainer 17 out by wax slop and is connected with wax slop pump 18, the outlet line of wax slop pump 18 is divided into four tunnels, leading up to strainer 19 and the 3rd control valve 20 is connected with the second spray sparger 15, UNICOM for subsequent use line 21 and the 4th control valve 22 and circulating oil pump 5 outlets of leading up to are connected, the 7th control valve 23 of leading up to is connected with wax slop product line 24, lead up to interchanger 25 and the 5th control valve 26 and the 3rd spray sparger 27 be connected, the 3rd spray sparger 27 is positioned at the top of the second packing layer 28, the second packing layer 28 is positioned at the top of heavy gas oil accumulator 16, the bottom of separation column 29 is provided with furnace charge line 8.Described the first spray sparger 13 and and turning oil oil header 3 between space form the first washing section, the second spray sparger 15 and packing layer 14 forms the second washing section, the 3rd spray sparger 27 and packing layer 28 and forms the 3rd washing section.
Described the first spray sparger 13 and and turning oil oil header 3 between space form the first washing section, the second spray sparger 15 and the first packing layer 14 forms the second washing section, the 3rd spray sparger 27 and the second packing layer 28 and forms the 3rd washing section.
The shower nozzle number of plies of described the first spray sparger 13, the second spray sparger 15 and the 3rd spray sparger 27 is respectively 1 layer.
Described the first spray sparger 13, the second spray sparger 15 and the 3rd spray sparger 27 are made up of distribution pipe and shower nozzle, and the model of three sparger shower nozzles is not identical, and the number of shower nozzle is 13.
Described the first packing layer 14 adopts the grid packing of large flux, and packing layer 28 adopts common fillers.
Described turning oil oil header 3 is tilting oil header.
Described UNICOM for subsequent use line 21 and the 4th control valve 22 are closing condition.
Described control valve 23 and wax slop product line 24 are closing condition,
Described control valve 9 and turning oil product line 10 are open mode, and the first control valve 7 is closing condition, and device carries out zero recycle ratio operation.
Described strainer 4 and strainer 6 adopt automatic backwashing filter.
The device of the present embodiment is for the washing section of delayed coking reaction oil gas, reaction oil gas enters after separation column, the liquid phase of the liquid phase that reaction oil gas carries and reaction oil gas washing condensation falls into turning oil oil header, gas phase is successively upwards after three washing section washings, continuing rises again enters separation column top wax oil section, obtains wax oil product.Turning oil oil header is extracted strainer out by turning oil and is connected with circulating oil pump, circulating oil pump is connected with turning oil egress filtering device, the outlet line of turning oil egress filtering device is divided into three tunnels, the control valve of leading up to returns to Fractionator Bottom, the control valve of leading up to is connected with turning oil product pipeline, lead up to after interchanger and control valve and be connected with the first spray sparger, heavy gas oil accumulator is extracted strainer out by wax slop and is connected with wax slop pump, wax slop pump outlet pipeline is divided into four tunnels, heavy gas oil accumulator is extracted strainer out by wax slop and is connected with wax slop pump, wax slop pump outlet pipeline is divided into four tunnels, leading up to strainer and control valve is connected with the second spray sparger, UNICOM for subsequent use line and control valve and the circulating oil pump outlet of leading up to is connected, the control valve of leading up to is connected with wax slop product line, lead up to interchanger and control valve and the 3rd spray sparger be connected.Residual oil enters after Fractionator Bottom, the surge tank using Fractionator Bottom as furnace charge, then enter process furnace.
The present embodiment has adopted multistage washing technology, the first washing section adopts hollow-spraying-tower technology, spray sparger is only set, other column internalss are not set, the object that adheres to of coking does not occur, be difficult for coking, the second washing section adopts spray sparger and large flux grid packing, improved washing and separating effect, the 3rd washing section adopts spray sparger and common fillers, further strengthening washing and separating effect.The washing oil of the first washing section, from the turning oil after interchanger heat exchange, had both been conducive to remove the unnecessary heat of reaction oil gas, was also conducive to the Btu utilization of high potential temperature.The washing oil of the second washing section adopts the wax slop without heat exchange, makes more easily to reach vapor liquid equilibrium in washing oil and reaction oil gas contact process, reduces because of the excessively cold turning oil causing of washing oil.The 3rd washing section is wax oil and wax slop segregation section, adopts spray and filler can improve separating effect.The area of the covering of every layer of spray sparger of washing section is 2-5 times of separation column cross-sectional area.All strainers are all set to two groups of filters in parallel, must ensure a set filter operation while normally production, and one group for subsequent use, do not interrupt the operation of strainer so that clear up strainer.Wax slop returns tower bottom tube line can regulate recycle ratio, can also device operation systemic circulation than time as the multiple line of spraying layer.Turning oil oil header adopts tilting design, can make oil header upper liquid rapid flow, prevents coke powder deposition and coking.Strainer extracted out by turning oil and turning oil egress filtering device adopts automatic backwashing filter, can reduce manually-operated workload.
Claims (7)
1. one kind has the delayed coking washing device of many washing sections, it is characterized in that, separation column (29) bottom is provided with resid feed line (1), resid feed line (1) top is provided with turning oil oil header (3), the top of turning oil oil header (3) is provided with reaction oil gas line (2), the top of reaction oil gas line (2) is provided with the first spray sparger (13), turning oil oil header (3) is extracted strainer (4) out by turning oil and is connected with circulating oil pump (5), circulating oil pump (5) outlet is connected with turning oil egress filtering device (6), the outlet of turning oil egress filtering device (6) is divided into three tunnels, the first control valve (7) of leading up to returns to Fractionator Bottom, the 6th control valve (9) of leading up to is connected with turning oil product pipeline (10), lead up to after interchanger (11) and the second control valve (12) and to spray sparger (13) and be connected with first, the top of the first spray sparger (13) is provided with the first packing layer (14), the top of the first packing layer (14) is provided with the second spray sparger (15), the top of the second spray sparger (15) is provided with heavy gas oil accumulator (16), heavy gas oil accumulator (16) is extracted strainer (17) out by wax slop and is connected with wax slop pump (18), the outlet line of wax slop pump (18) is divided into four tunnels, lead up to strainer (19) and the 3rd control valve (20) and second spray sparger (15) be connected, UNICOM for subsequent use line (21) and the 4th control valve (22) and circulating oil pump (5) outlet of leading up to is connected, the 7th control valve (23) of leading up to is connected with wax slop product line (24), lead up to interchanger (25) and the 5th control valve (26) and the 3rd spray sparger (27) be connected, the 3rd spray sparger (27) is positioned at the top of the second packing layer (28), the second packing layer (28) is positioned at the top of heavy gas oil accumulator (16), the bottom of separation column (29) is provided with furnace charge line (8).
2. a kind of delayed coking washing device with many washing sections according to claim 1, it is characterized in that, between described the first spray sparger (13) and turning oil oil header (3), space forms the first washing section, and the second spray sparger (15) and the first packing layer (14) form the second washing section, the 3rd spray sparger (27) and the second packing layer (28) and form the 3rd washing section.
3. a kind of delayed coking washing device with many washing sections according to claim 1, it is characterized in that, the shower nozzle number of plies of described the first spray sparger (13), the second spray sparger (15) and the 3rd spray sparger (27) is respectively 1-5 layer.
4. a kind of delayed coking washing device with many washing sections according to claim 1, it is characterized in that, described the first spray sparger (13), the second spray sparger (15) and the 3rd spray sparger (27) are made up of distribution pipe and shower nozzle, and the number of shower nozzle is 1-100.
5. a kind of delayed coking washing device with many washing sections according to claim 1, is characterized in that, described the first packing layer (14) adopts the grid packing of large flux.
6. a kind of delayed coking washing device with many washing sections according to claim 1, is characterized in that, the interior medium of described UNICOM for subsequent use line (21) can two-way circulate, and nominal situation is closing condition.
7. a kind of delayed coking washing device with many washing sections according to claim 1, is characterized in that, described turning oil oil header (3) is tilting oil header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338264.3U CN203923103U (en) | 2014-06-24 | 2014-06-24 | A kind of delayed coking washing device with many washing sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338264.3U CN203923103U (en) | 2014-06-24 | 2014-06-24 | A kind of delayed coking washing device with many washing sections |
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| Publication Number | Publication Date |
|---|---|
| CN203923103U true CN203923103U (en) | 2014-11-05 |
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| CN201420338264.3U Expired - Lifetime CN203923103U (en) | 2014-06-24 | 2014-06-24 | A kind of delayed coking washing device with many washing sections |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841337A (en) * | 2016-09-19 | 2018-03-27 | 北京华石联合能源科技发展有限公司 | A kind of separating technology and piece-rate system of floating bed hydrogenation product |
| CN112708443A (en) * | 2019-10-24 | 2021-04-27 | 中国石化工程建设有限公司 | Catalytic slurry oil distillation tower and method for intensively washing catalytic slurry oil |
| EP3819355A1 (en) * | 2019-11-07 | 2021-05-12 | INDIAN OIL CORPORATION Ltd. | An apparatus and a method for washing of hydrocarbon product vapor |
-
2014
- 2014-06-24 CN CN201420338264.3U patent/CN203923103U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841337A (en) * | 2016-09-19 | 2018-03-27 | 北京华石联合能源科技发展有限公司 | A kind of separating technology and piece-rate system of floating bed hydrogenation product |
| CN107841337B (en) * | 2016-09-19 | 2019-12-24 | 北京华石联合能源科技发展有限公司 | Separation process and separation system for hydrogenation product of suspension bed |
| CN112708443A (en) * | 2019-10-24 | 2021-04-27 | 中国石化工程建设有限公司 | Catalytic slurry oil distillation tower and method for intensively washing catalytic slurry oil |
| CN112708443B (en) * | 2019-10-24 | 2022-11-15 | 中国石化工程建设有限公司 | Catalytic slurry oil distillation tower and method for intensively washing catalytic slurry oil |
| EP3819355A1 (en) * | 2019-11-07 | 2021-05-12 | INDIAN OIL CORPORATION Ltd. | An apparatus and a method for washing of hydrocarbon product vapor |
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