CN1600431A - Regeneration technique for fumes and gas flue in imperfect combustion - Google Patents
Regeneration technique for fumes and gas flue in imperfect combustion Download PDFInfo
- Publication number
- CN1600431A CN1600431A CN 03160059 CN03160059A CN1600431A CN 1600431 A CN1600431 A CN 1600431A CN 03160059 CN03160059 CN 03160059 CN 03160059 A CN03160059 A CN 03160059A CN 1600431 A CN1600431 A CN 1600431A
- Authority
- CN
- China
- Prior art keywords
- flue
- air
- flue gas
- combustion technology
- technology described
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 230000008929 regeneration Effects 0.000 title claims description 34
- 238000011069 regeneration method Methods 0.000 title claims description 34
- 239000003517 fume Substances 0.000 title abstract description 5
- 238000000034 method Methods 0.000 title abstract description 3
- 239000007789 gas Substances 0.000 title description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 63
- 239000003546 flue gas Substances 0.000 claims description 63
- 238000005516 engineering process Methods 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 abstract description 8
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 8
- 235000019504 cigarettes Nutrition 0.000 description 29
- 238000004523 catalytic cracking Methods 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000001172 regenerating effect Effects 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
- 238000011084 recovery Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Abstract
A technique for burning the fume not regenerate fully in flue features that the air is filled in the flue at proper position for burning part of CO and hydrocarbon carried by Co, and a self-protecting interlocking system is arranged to prevent the overheat and tail combustion of final fume.
Description
Technical field
The present invention relates to catalytic cracking technology, relate in particular to the gas energy recovery technology of catalytic cracking.
Background technology
Catalytic cracking catalyst regeneration is bubbling air in revivifier, makes burning attached to the coke on the catalyzer of autoreactor, thereby recovers activity of such catalysts, for recycling.Catalyst regeneration is divided into holomorphosis and incomplete regen-eration, and holomorphosis is under the situation of peroxide, and the carbon in the coke all fully burns into CO
2Incomplete regen-eration is meant the not fully burning of carbon in the coke, and gas fume after burning contains CO.
For incomplete regen-eration, mainly comprise following three kinds of situations:
1. block form two-stage regeneration, the setting of the flue gas system of block form two-stage regeneration is divided into following four kinds of patterns again.
1) the two flue gas mixed firings again that 2. the flue gas again and again that 3. first revivifier produce and second revivifier produce is set, promptly inject certain air or do not inject air, make that CO fully burns in the flue gas, temperature after the mixed firing reaches 850-1200 ℃, and soon the cigarette machine is 6. directly to enter three by flue after the flue gas after the mixed firing (not containing CO) enters the flue gas heat collector again and 4. makes its temperature be reduced to 640-700 ℃.(as shown in Figure 1)
2) in order not make flue gas (being CO) tail combustion, the temperature of flue gas is to 400-450 ℃ more only to reduce by two, and making itself and the mixed temperature of flue gas again and again is below 550 ℃, finally causes to the temperature of flue gas turbine inlet place flue gas lower.Mixed flue gas directly enters the cigarette machine by flue.
3) two again flue gas do not enter the cigarette machine, directly enter CO boiler and waste heat boiler.Flue gas directly enters the cigarette machine by flue again and again.
4) 2 cigarette machines are set, one, two again flue gas directly enter 2 cigarette machines by flue respectively.
2. eclipsed form two-stage regeneration (as shown in Figure 2) 3. has only one with the flue gas that 2. second revivifier comes out from first revivifier, contains CO in its flue gas.6. flue gas directly enters the cigarette machine by flue.
3. single hop incomplete regen-eration (as shown in Figure 3), because the main air amount that 2. revivifier feeds is limited, the dilute phase oxygen deprivation, the CO partial combustion, regeneration temperature is lower, and carrying a certain amount of hydrocarbon secretly with reclaimable catalyst can't burn away, therefore not only contain CO in the flue gas, and contain a certain amount of hydrocarbon.4. this flue gas directly enters the cigarette machine by flue.
Cigarette machine design entry temperature is generally 680-760 ℃, and the incomplete regen-eration temperature is generally low than holomorphosis, simultaneously because the flue from revivifier to flue gas turbine inlet is longer, and be frame aloft, the flue gas heat lost by radiation is big, its temperature drop is about 20-80 ℃ (with the length of flue, heat insulation effect and envrionment conditions are relevant), so flue-gas temperature is lower at the flue gas turbine inlet place, many incomplete regen-eration catalytic cracking unit actual entry temperature is 540-630 ℃, the regenerative power that the cigarette machine is reclaimed the flue gas pressures energy produces bigger influence, increased plant energy consumption, the cigarette engine efficiency reduces greatly.All there is this kind situation in above-mentioned all types of incomplete regen-eration.
And, for 2) the block form two-stage regeneration flue gas system of type, again and again flue gas and two the more mixed temperature of flue gas be below 550 ℃, so that the temperature of flue gas turbine inlet place flue gas is lower, make the cigarette machine reclaim flue gas pressures can power and cigarette engine efficiency lower.For 3) the block form two-stage regeneration flue gas system of type since two again flue gas do not enter the cigarette machine, make a large amount of flue gas pressures can't reclaim, increased plant energy consumption.For 4) the block form two-stage regeneration flue gas system of type, though it has alleviated the low problem of flue gas turbine inlet place flue-gas temperature, this kind formula investing is big, control is complicated.
In addition, not only there is the problem that power is low, the cigarette engine efficiency is low that causes cigarette machine recovery flue gas pressures energy owing to flue gas turbine inlet place flue-gas temperature is low for the single hop incomplete regen-eration, and the hydrocarbon that contains in the flue gas easily fouling after entering the cigarette machine attached to adhesion catalyzer under the cigarette machine blade, destroy the motor-driven balance of cigarette, cause the cigarette machine vibration to exceed standard, thereby influence cigarette captain period run.
Summary of the invention
Purpose of the present invention overcomes above-mentioned shortcoming exactly, employing replenishes the method for air in the incomplete regen-eration flue between catalyst regenerator and flue gas turbine inlet, allow part CO burns away in the incomplete regen-eration flue gas, make flue-gas temperature be increased to 660-760 ℃, finally make the flue gas turbine inlet temperature reach 640-700 ℃, improve cigarette machine regenerative power and efficient, thereby reduce plant energy consumption with the pressure energy that reclaims flue gas to greatest extent.In addition,, in flue, replenish air, the hydrocarbon of carrying secretly in the flue gas is fully burnt, eliminate its influence the running of cigarette machine for the revivifier of single hop incomplete regen-eration.
The present invention replenishes air (see among Fig. 1 and Fig. 2 5., among Fig. 3 3.) in the incomplete regen-eration flue that contains CO (or under single hop incomplete regen-eration situation, carrying a certain amount of hydrocarbon secretly).For make inject air mix with flue gas fully, even, ring main is set outside flue, draw 4-8 arm respectively along the flue radial equipartition from ring main, flow to consistent with flue gas flow direction.Air can directly be introduced from the main air blower outlet of device, maybe can satisfy the industrial wind of pressure requirement.Air injects on the line variable valve is set, and injects air capacity to regulate smoke combustion end (promptly entering upstream device three revolves) temperature by regulating, and on the flue of downstream thermopair is set, and as temperature control point and monitoring point, the self-insurance interlocking system is set.Air injects that flue is consistent with flue gas flow direction tangentially to be entered, and decanting point is apart from temperature control point 25m-50m, and temperature control point is threaded to few 5m apart from upstream device three, to guarantee the CO incendiary time and to prevent that tail from firing.Replenish the size of air capacity, be generally 20-300Nm according to unit scale and CO (and/or entraining hydrocarbon) concentration
3/ min.
Adopt the present invention, replenish air capacity 20-300Nm
3/ min can improve flue-gas temperature 20-80 ℃ effectively, makes finally to enter the flue gas turbine inlet temperature and reach 700 ℃, overcomes because the low influence to cigarette machine organic efficiency and efficient of flue gas turbine inlet temperature.For the single hop incomplete regen-eration, suppress that the hydrocarbon component attached catalyst destroys the motor-driven equilibrated phenomenon of cigarette in the flue gas, improve the regenerative power of cigarette machine, and have simple in structure, control flexibly, the advantage of stable operation.
Description of drawings
Fig. 1 is a block form two-stage regeneration synoptic diagram;
Fig. 2 is an eclipsed form two-stage regeneration synoptic diagram;
Fig. 3 is single hop regeneration synoptic diagram;
Fig. 4 is an eclipsed form two-stage regeneration flue burning instance graph.
Embodiment
For 1,400,000 tons of/year heavy oil catalytically cracking equipment eclipsed form two-stage regenerations, implement the technology of the present invention transformation (seeing shown in Figure 4).
3. 1. the reclaimable catalyst autoreactor enter first revivifier through inclined tube to be generated, carrying out part in 3. burns, 2. 4. the catalyzer that still contains part of coke enters second revivifier through external warmer continues to burn, make catalyzer obtain regeneration, recover its activity, enter riser tube through regenerator sloped tube, to recycle.2. and 3. the bottom all feeds fresh air, 3. in oxygen excessive, be holomorphosis, 2. the flue gas that contains oxygen after the burning enters, and 2. is incomplete regen-eration, gas fume after burning contains CO and enter flue after 2. comes out in the top.Mend air in flue, air is drawn 4 arms by the air distribution ring and is 7. evenly injected flue along flue gas flow direction, controls with mending the air capacity tandem of going at flue downstream design temperature, and control downstream flue gas is overtemperature not.Air injects the decanting point of flue apart from temperature control point 43m.Additional air capacity is 82.5-138Nm
3/ min.
The temperature in that flue gas enters the cigarette machine before transforming: 560 ℃, after adopting the technology of the present invention to transform, temperature in: 680-700 ℃, reach cigarette machine design entry temperature, the cigarette acc power improves 14.4%.
Claims (7)
1. an incomplete regen-eration flue gas flue combustion technology is characterized in that replenishing air in the incomplete regen-eration flue gas flue between catalyst regenerator and flue gas turbine inlet, and air injects flue in the mode consistent with flue gas flow direction.
2. the flue combustion technology described in the claim 1 is characterized in that air exports from main air blower, perhaps comes self energy to satisfy the industrial wind of pressure requirement.
3. the flue combustion technology described in the claim 1 is characterized in that being provided with ring main outside flue, draws 4-8 arm respectively along the flue radial equipartition from ring main.
4. the flue combustion technology described in the claim 1 is characterized in that on air injection line variable valve being set, and regulates air flow quantity, in the flue downstream thermopair is set simultaneously, and control and monitor temperature constitute the self-insurance interlocking system.
5. the flue combustion technology described in the claim 4 is characterized in that decanting point that air injects flue apart from temperature control point 25m-50m, and temperature control point is threaded to few 5m apart from upstream device three.
6. the flue combustion technology described in the claim 1 is characterized in that replenishing air capacity is 20-300Nm
3/ min.
7. the flue combustion technology described in the claim 1, it is characterized in that outside flue, being provided with ring main, draw 4 arms respectively along the flue radial equipartition from ring main, air injects on the line variable valve is set, and regulates air flow quantity, in the flue downstream thermopair is set simultaneously, control and monitor temperature, constitute the self-insurance interlocking system, air injects the decanting point of flue apart from temperature control point 43m, and additional air capacity is 82.5-138Nm
3/ min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03160059XA CN1323757C (en) | 2003-09-26 | 2003-09-26 | Regeneration technique for fumes and gas flue in imperfect combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03160059XA CN1323757C (en) | 2003-09-26 | 2003-09-26 | Regeneration technique for fumes and gas flue in imperfect combustion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1600431A true CN1600431A (en) | 2005-03-30 |
| CN1323757C CN1323757C (en) | 2007-07-04 |
Family
ID=34660793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03160059XA Expired - Fee Related CN1323757C (en) | 2003-09-26 | 2003-09-26 | Regeneration technique for fumes and gas flue in imperfect combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1323757C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296909A (en) * | 2014-11-08 | 2015-01-21 | 中国第一重型机械股份公司 | Power recovery type efficiency testing device for hydraulic wind-driven generator |
| CN115055212A (en) * | 2022-06-10 | 2022-09-16 | 中国石油大学(北京) | Regeneration method for preparing olefin from methanol with zero emission of carbon dioxide |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5268089A (en) * | 1992-06-24 | 1993-12-07 | Mobil Oil Corporation | FCC of nitrogen containing hydrocarbons and catalyst regeneration |
| CN1048915C (en) * | 1995-08-11 | 2000-02-02 | 中国石化集团洛阳石油化工工程公司 | Method for burning regenerated gas CO and recovering energy thereof |
| US5716514A (en) * | 1995-08-30 | 1998-02-10 | Mobil Oil Corporation | FCC NOx reduction by turbulent/laminar thermal conversion |
| CN1089624C (en) * | 1998-06-09 | 2002-08-28 | 中国石油化工集团公司 | Mixed combustion technique by catalytic cracking of fume to regenerate it |
-
2003
- 2003-09-26 CN CNB03160059XA patent/CN1323757C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296909A (en) * | 2014-11-08 | 2015-01-21 | 中国第一重型机械股份公司 | Power recovery type efficiency testing device for hydraulic wind-driven generator |
| CN104296909B (en) * | 2014-11-08 | 2016-05-25 | 中国第一重型机械股份公司 | Power Recovery formula hydraulic pressure wind power generator efficiency test device |
| CN115055212A (en) * | 2022-06-10 | 2022-09-16 | 中国石油大学(北京) | Regeneration method for preparing olefin from methanol with zero emission of carbon dioxide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1323757C (en) | 2007-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10480377B2 (en) | System and method to improve aftertreatment in an internal combustion engine | |
| EP2378096B1 (en) | Engine | |
| SE1550227A1 (en) | Process and exhaust treatment system for treating an exhaust stream | |
| WO2011087031A1 (en) | Exhaust-gas denitration system, ship equipped therewith, and method for controlling exhaust-gas denitration system | |
| CN107023366A (en) | A kind of control of burner dpf regeneration and diagnostic system for non-rice habitats agricultural machinery | |
| JP2015507118A (en) | Exhaust aftertreatment system and method for operating the system | |
| CN100408834C (en) | Exhaust gas purifier | |
| CN103883380A (en) | Method and system for controlling exhaust gas temperature of engine | |
| CN103867323A (en) | Method and apparatus for raising the exhaust gas temperature in the exhaust pipe of a turbocharged internal combustion engine | |
| CN202611809U (en) | Engine diesel particulate filter (DPF) controllable regeneration system | |
| CN107737527A (en) | Marine exhaust dedusting denitrification integral system | |
| CN106437949B (en) | A kind of syndrome exhaust gas cleaner suitable for High-Powered Vehicle | |
| CN102733910A (en) | Method and apparatus for controlling regeneration of particle filter | |
| KR101231132B1 (en) | Exhaust Gas Reducing Device for Vehicles with Burner to Improve Purification Performance | |
| CN101680325B (en) | An injector for regeneration of an exhaust gas purifying device | |
| CN203925695U (en) | The control system of engine exhaust temperature | |
| CN103405988B (en) | Flue-gas-cooling system and method | |
| CN103422946A (en) | DPF controllable regeneration system of engine | |
| JP2015096732A (en) | Exhaust gas denitration system, vessel mounted with the same and control method for the same | |
| CN110159403A (en) | Prevent the method, apparatus and diesel vehicle that dpf regeneration is burnt | |
| CN1323757C (en) | Regeneration technique for fumes and gas flue in imperfect combustion | |
| CN105569782A (en) | Evaporative type particulate matter trap regeneration system | |
| JP5964467B2 (en) | Exhaust gas denitration system, ship equipped with the same, and control method of exhaust gas denitration system | |
| CN207145036U (en) | A kind of fuel injection system for dpf regeneration | |
| CN203400616U (en) | Flue gas cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sinopec Consulting Company Assignor: Engrg Construction Co., SINOPEC Contract fulfillment period: 2007.7.10 to 2013.7.10 Contract record no.: 2009110000072 Denomination of invention: Regeneration technique for fumes and gas flue in imperfect combustion Granted publication date: 20070704 License type: Exclusive license Record date: 2009.5.7 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.7.10 TO 2013.7.10; CHANGE OF CONTRACT Name of requester: SINOPEC CONSULTING CORPORATION Effective date: 20090507 |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100029 Beijing City, Chaoyang District Hui Street No. 6 Co-patentee after: Sinopec Engineering Incorporation Patentee after: China Petrochemical Group Corp. Address before: 100029 Beijing City, Chaoyang District Hui Street No. 6 Co-patentee before: Engrg Construction Co., SINOPEC Patentee before: China Petrochemical Group Corp. |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SINOPEC ENGINEERING INCORPORATION Effective date: 20130109 Owner name: SINOPEC ENGINEERING INCORPORATION Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100029 CHAOYANG, BEIJING TO: 100101 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130109 Address after: 100101, Beijing Ann Hui North Lane Ann garden, No. 21 Patentee after: Sinopec Engineering Incorporation Address before: 100029 Beijing City, Chaoyang District Hui Street No. 6 Patentee before: China Petrochemical Group Corp. Patentee before: Sinopec Engineering Incorporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20180926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |