CN108102688A - A kind of delayed coking coke drum heat control technique - Google Patents
A kind of delayed coking coke drum heat control technique Download PDFInfo
- Publication number
- CN108102688A CN108102688A CN201711460133.7A CN201711460133A CN108102688A CN 108102688 A CN108102688 A CN 108102688A CN 201711460133 A CN201711460133 A CN 201711460133A CN 108102688 A CN108102688 A CN 108102688A
- Authority
- CN
- China
- Prior art keywords
- coke drum
- desuperheat
- equipment
- heat
- delayed coking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000571 coke Substances 0.000 title claims abstract description 80
- 238000004939 coking Methods 0.000 title claims abstract description 24
- 230000003111 delayed effect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000011331 needle coke Substances 0.000 abstract description 5
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/005—Coking (in order to produce liquid products mainly)
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/107—Atmospheric residues having a boiling point of at least about 538 °C
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1077—Vacuum residues
Abstract
The present invention relates to a kind of delayed coking coke drum heat control techniques, including two coke drums, heating equipment, heat transmission equipment and emptying tower, it is characterized in that, coke drum bottom is equipped with heating equipment, steam is heated into superheated vapor by heating equipment, and superheated steam enters coke drum and required heat is provided to coke drum；The pipeline of coke drum top to emptying tower is equipped with desuperheat equipment, the high-temperature steam that coke drum top comes out, into emptying tower after desuperheat equipment desuperheat.The present invention compared with coke drum production status compare, accurately control the heat of coke drum using the heat supply outside delayed coking unit production system, the steady heat balance and material balance of apparatus system reduces the cyclic swing of device；The liquid for improving device is received, and improves the control accuracy of product quality, reduces the coking rate of furnace tubing, shorten coke drum preheating time, without oil is got rid of, the needle coke quality of production needle coke delayed coking unit is improved, emptying tower top air cooler is avoided and cooler blocks.
Description
Technical field
The present invention relates to technical field of petrochemical industry, and in particular to the technique of delayed coking coke drum heat control.
Background technology
The delayed coking unit of petrochemical industry at present, the flow of the preheating of coke drum are to open the ball collar of new column overhead
Valve, produce high-temperature oil gas from the new tower of tower tower top flow to bottom of towe heat exchange liquefaction after, into get rid of oil tank come give new tower tower wall preheating
To 330 DEG C or so, the temperature after preheating in coke drum presents the low distribution of relative superiority or inferiority.
This nothing blocks up burnt valve coke drum pre-heating technique, needs or so 6 hours, and new tower is preheated with the high-temperature oil gas of production tower
To 330 DEG C or so, new 330 DEG C or so environment temperatures of tower can not meet the heat of required absorption during residual oil thermal cracking, residual oil hot tearing
Solution reaction is insufficient；So coke drum is caused to cut the material balance of whole system and heat balance destruction before and after tower, device is caused
The cyclic fluctuation of system adds the operation difficulty of device, reduces liquid receipts, reduces the control accuracy of product quality, heat
Damage is big, increases the coking rate of furnace tubing.
For producing the delayed coking unit of needle coke, reaction mass reaction time in coke drum needs 6 hours, when
After coke drum cuts tower, the reaction mass in old tower can not guarantee normal reaction temperature within the reaction time, cause product matter
It measures unqualified.
The steam for entering emptying tower when coke drum is greatly to vapour from coke drum carries amount of heat and sump oil, be easy to cause emptying
Tower top air cooler and cooler block.
The content of the invention
Present invention aims to overcome that the defects of prior art, a kind of coke drum heat control technique provided, so as to protect
The heat balance and material balance of card system improve product quality, are energy-saving, improving liquid receipts, optimization apparatus system technique behaviour
Make, and emptying column overhead air cooler and cooler can be avoided to block.
To achieve the above object, the present invention includes two coke drums, heating equipment, desuperheat equipment and is vented tower, and feature exists
Be equipped with heating equipment in, coke drum bottom, steam is heated into superheated vapor by heating equipment, superheated steam enter coke drum to
Coke drum provides required heat；The pipeline of coke drum top to emptying tower is equipped with desuperheat equipment, the height that coke drum top comes out
Warm steam, into emptying tower after desuperheat equipment desuperheat.
The heating equipment is equipped with temperature control system.
The heating equipment includes electric heating equipment and gas heating equipment.
The heating equipment can be worked with continous way or formula of having a rest.
The superheated steam enters coke drum and required heat is provided to coke drum, is divided into and preheats and improve to coke drum
Two processes of the reaction temperature of material provide heat in coke drum.
The desuperheat equipment includes heat exchange desuperheat equipment and water filling desuperheat equipment.
The high-temperature steam desuperheat come when the desuperheat equipment is preheated to coke drum from coke drum top.
The desuperheat equipment to coke drum greatly to vapour when from coke drum top come high-temperature steam desuperheat.
Waste heat recovery is carried out after the cooling media for heat exchange of the heat exchange desuperheat equipment.
The present invention compared with coke drum production status compare, using outside delayed coking unit production system heat supply
Accurately control the heat balance of coke drum, the steady heat balance and material balance of apparatus system reduces week of device
Phase is fluctuated；The liquid for improving device is received, and improves the control accuracy of product quality, reduces the coking rate of furnace tubing, is shortened
Coke drum preheating time；It has been reduced or avoided and has got rid of oil（Preheat the oil that new tower generates）It is formed, saves the electricity of pump（Steam）Consumption,
And ensure that the needle coke quality of the delayed coking unit of production needle coke, avoid emptying column overhead air cooler and cooler
It blocks, optimizes many drawbacks that Coking Tower for Delayed Coking Unit batch production is brought.
Description of the drawings
A kind of delayed coking coke drum heat control process schematic representation provided in an embodiment of the present invention shown in Fig. 1；
Referring to Fig. 1,1 is heating equipment；2 be coke drum；3 be desuperheat equipment；4 be pressure-control valve；5 be emptying tower.
Specific embodiment
In order to which the object, technical solution and advantage for making invention are more clearly understood, below in conjunction with attached drawing, the present invention is carried out
It is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The present invention.
As shown in Figure 1, as an embodiment, heating equipment 1 is equipped in two coke drums, 2 bottom, steam passes through heating equipment 1
Superheated vapor is heated into, superheated steam enters coke drum and preheated to coke drum, and needs are preheating to coke drum by heating curve
Temperature, during being preheated to coke drum, the steam pressure in coke drum is controlled, which to be no more than Coke Drum Design, allows pressure, most
High preheating temperature, which is no more than Coke Drum Design, allows temperature；The pipeline of coke drum top to emptying tower is equipped with desuperheat equipment 3, coke
The high-temperature steam of top of tower discharge is after 3 desuperheat of desuperheat equipment into emptying tower.
As shown in Figure 1, as an embodiment, heating equipment 1 is equipped in two coke drums, 2 bottom, steam passes through heating equipment 1
Superheated vapor is heated into, superheated steam needs, into coke drum, to improve coke drum interior reaction temperature, improve coke according to production
Quality and liquid receive product, subsequently into fractionating system.
As shown in Figure 1, as an embodiment, cooling system 3 is equipped in the pipeline of coke drum top to emptying tower, in coke
When tower gives greatly vapour, substantial amounts of high-temperature steam steam enters emptying tower from coke drum top after desuperheat equipment desuperheat, passes through control
The desuperheat amount of desuperheat equipment processed and the temperature for flowing back to control emptying column overhead of emptying tower, so as to avoid emptying tower top air cooler
It is blocked with cooler, desuperheat equipment can be heat exchange desuperheat equipment and water filling desuperheat equipment.
Claims (8)
1. a kind of delayed coking coke drum heat control technique including two coke drums, heating equipment, desuperheat equipment and is vented tower,
It is characterized in that, coke drum bottom is equipped with heating equipment, steam is heated into superheated vapor by heating equipment, and superheated steam enters
Coke drum provides required heat to coke drum；The pipeline of coke drum top to emptying tower is equipped with desuperheat equipment, coke drum top
High-temperature steam out, into emptying tower after desuperheat equipment desuperheat.
2. delayed coking coke drum heat control technique according to claim 1, which is characterized in that the heating equipment
Including electric heating equipment and gas heating equipment.
3. delayed coking coke drum heat control technique according to claim 1, which is characterized in that the heating equipment
It can be worked with continous way or formula of having a rest.
4. delayed coking coke drum heat control technique according to claim 1, which is characterized in that the superheated steam
Required heat is provided to coke drum into coke drum, is divided into and preheats and improve material reaction temperature two in coke drum to coke drum
A process provides heat.
5. delayed coking coke drum heat control technique according to claim 1, which is characterized in that the desuperheat equipment
Including heat exchange desuperheat equipment and water filling desuperheat equipment.
6. delayed coking coke drum heat control technique according to claim 1, which is characterized in that the desuperheat equipment
The high-temperature steam desuperheat come when being preheated to coke drum from coke drum top.
7. delayed coking coke drum heat control technique according to claim 1, which is characterized in that the desuperheat equipment
The high-temperature steam desuperheat come during to coke drum greatly to vapour from coke drum top.
8. delayed coking coke drum heat control technique according to claim 5, which is characterized in that the heat exchange desuperheat is set
Waste heat recovery is carried out after standby cooling media for heat exchange.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211245160.3A CN115975664A (en) | 2017-12-28 | 2017-12-28 | Delayed coking coke tower heat control process |
| CN201711460133.7A CN108102688A (en) | 2017-12-28 | 2017-12-28 | A kind of delayed coking coke drum heat control technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460133.7A CN108102688A (en) | 2017-12-28 | 2017-12-28 | A kind of delayed coking coke drum heat control technique |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211245160.3A Division CN115975664A (en) | 2017-12-28 | 2017-12-28 | Delayed coking coke tower heat control process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108102688A true CN108102688A (en) | 2018-06-01 |
Family
ID=62214015
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211245160.3A Pending CN115975664A (en) | 2017-12-28 | 2017-12-28 | Delayed coking coke tower heat control process |
| CN201711460133.7A Pending CN108102688A (en) | 2017-12-28 | 2017-12-28 | A kind of delayed coking coke drum heat control technique |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211245160.3A Pending CN115975664A (en) | 2017-12-28 | 2017-12-28 | Delayed coking coke tower heat control process |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN115975664A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722269A (en) * | 2019-01-16 | 2019-05-07 | 林永波 | A kind of delayed coking coke drum mechanical steam recompression pre-heating technique |
| CN110527548A (en) * | 2019-09-06 | 2019-12-03 | 林永波 | A kind of delayed coking coke drum conduction oil circulation preheating device and technique |
| CN111925814A (en) * | 2020-07-22 | 2020-11-13 | 山东益大新材料股份有限公司 | Delayed coking system and method for producing coal-series and oil-series needle coke in time-sharing manner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059887A (en) * | 2013-01-28 | 2013-04-24 | 天津市东盛工贸有限公司 | Horizontal reaction kettle delayed coking equipment and process thereof |
| CN203187623U (en) * | 2013-01-28 | 2013-09-11 | 天津市东盛工贸有限公司 | Horizontal reaction kettle delayed coking equipment |
| CN104232145A (en) * | 2014-05-28 | 2014-12-24 | 林永波 | Gas circular preheating device and process for delayed coking coke tower |
| CN104974782A (en) * | 2015-06-26 | 2015-10-14 | 林永波 | Delayed-coking coke tower outside-system heating and preheating device and technology |
| CN204874413U (en) * | 2015-06-26 | 2015-12-16 | 林永波 | Heat supply preheating device outside delayed coking coke drum system |
-
2017
- 2017-12-28 CN CN202211245160.3A patent/CN115975664A/en active Pending
- 2017-12-28 CN CN201711460133.7A patent/CN108102688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059887A (en) * | 2013-01-28 | 2013-04-24 | 天津市东盛工贸有限公司 | Horizontal reaction kettle delayed coking equipment and process thereof |
| CN203187623U (en) * | 2013-01-28 | 2013-09-11 | 天津市东盛工贸有限公司 | Horizontal reaction kettle delayed coking equipment |
| CN104232145A (en) * | 2014-05-28 | 2014-12-24 | 林永波 | Gas circular preheating device and process for delayed coking coke tower |
| CN104974782A (en) * | 2015-06-26 | 2015-10-14 | 林永波 | Delayed-coking coke tower outside-system heating and preheating device and technology |
| CN204874413U (en) * | 2015-06-26 | 2015-12-16 | 林永波 | Heat supply preheating device outside delayed coking coke drum system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722269A (en) * | 2019-01-16 | 2019-05-07 | 林永波 | A kind of delayed coking coke drum mechanical steam recompression pre-heating technique |
| CN110527548A (en) * | 2019-09-06 | 2019-12-03 | 林永波 | A kind of delayed coking coke drum conduction oil circulation preheating device and technique |
| CN111925814A (en) * | 2020-07-22 | 2020-11-13 | 山东益大新材料股份有限公司 | Delayed coking system and method for producing coal-series and oil-series needle coke in time-sharing manner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115975664A (en) | 2023-04-18 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180601 |