CN103627426A - Method for improving gasoline yield of catalytic cracking technology and device thereof - Google Patents
Method for improving gasoline yield of catalytic cracking technology and device thereof Download PDFInfo
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- CN103627426A CN103627426A CN201210302704.5A CN201210302704A CN103627426A CN 103627426 A CN103627426 A CN 103627426A CN 201210302704 A CN201210302704 A CN 201210302704A CN 103627426 A CN103627426 A CN 103627426A
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- catalytic cracking
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- riser tube
- quenching oil
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Abstract
The invention relates to a method for improving gasoline yield of catalytic cracking technology and a device thereof. The method comprises the following steps: in a catalytic cracking process, taking atmospheric first line oil as the quenching oil, and injecting the atmospheric first line oil into the middle part of a lifting pipe of a catalytic cracking device. The device comprises a lifting pipe and a quenching oil pipeline, the bottom of the lifting pipe communicates with a material feeding pipeline, the outlet in the top part of the lifting pipe communicates with an oil and gas pipeline, the middle part of the lifting pipe communicates with a quenching water pipeline, the middle part of the lifting pipe is provided with an introducing pipeline, the introducing pipeline communicates the quenching water pipeline and the quenching oil pipeline, and the quenching oil pipeline communicates with an atmospheric and vacuum distillation device. The method and the device thereof have the advantages that the gasoline yield is increased, the coke generation rate in the catalytic cracking proves is decreased, the dry gas yield and the liquefied gas yield during the catalytic cracking process are slightly reduced, the diesel oil yield is slightly improved, and thus the processing efficiency of the catalytic cracking device is improved.
Description
Technical field
The invention belongs to refining of petroleum field, particularly in catalytic cracking reaction process, improve the method and apparatus of yield of gasoline.
Background technology
Catalytic cracking process is that refinery is realized the important means that heavy oil product transforms to light-end products, is one of main economic benefit source of refinery.
In catalytic cracking process, raw material by contacting and heat up vaporization in riser tube with high-temperature regenerated catalyst after feed nozzle atomization, the raw material oil gas of vaporization and catalyzer flow from bottom to top in riser reactor, and the chemical reaction such as the katalysis generation cracking by catalyzer, isomerization, hydrogen transference, cyclisation, condensation, stock oil is converted into the pyroreaction oil gas mixture of component (dry gas, liquid hydrocarbon, gasoline, solar oil and the slurry oil etc.) and coke (being deposited on catalyst surface).
In catalytic cracking process, heavy distillate and residual oil are converted into lightweight oil by catalytic cracking reaction, and wherein yield of gasoline is generally 40%-50%, and its olefin(e) centent, octane value are high, are the main sources of refinery commercial gasoline.At present traditional catalytic cracking process and the yield of gasoline of device are not high, how further to improve the yield of gasoline of catalytic cracking unit, always are one of Main Topics of oil refining process development.
Summary of the invention
The object of the invention is, by newly-increased technical process, affects catalytic cracking reaction process, reduces catalytic cracking riser overcracking tendency, increases high value added product yield of gasoline, reduces the low value product yields such as dry gas, coke, improves catalytic cracking product benefit.
Technical scheme of the present invention is: improve the method for catalytically cracked gasoline yield, in catalytic cracking process, inject the riser tube middle part of catalytic cracking unit using a normal line oil of atmospheric and vacuum distillation unit as quenching oil.
The injection mode of described quenching oil is to inject continuously.
The present invention causes catalytic cracking unit by a normal line oil of atmospheric and vacuum distillation unit, as quenching oil, inject catalytic cracking unit riser tube middle part, catalytic cracking reaction process is mainly produced to the impact of two aspects: the one, reduce the overcracking tendency of oil gas in riser tube, reduce the low value-added product productions such as dry gas, coke, increase gasoline, diesel product output; The 2nd, in a normal line oil, approximately there is the cut of 65% left and right to meet gasoline boiling range index request, enter after catalytic cracking unit freshening, this part gasoline fraction will enter gasoline after reaction cracking fractionation, reach the object of increasing gasoline yield.Key point is to utilize a normal line oil as the quenching oil of catalytic cracking riser, include but not limited to the normal line oil of straight run of atmospheric and vacuum distillation unit, as long as boiling range scope is at the component oil of 150 ℃-280 ℃, the quenching oil that all can be considered as catalytic cracking riser injects, and to improve catalytic cracking unit product, distributes.
The device that the method for above-mentioned raising catalytically cracked gasoline yield is used comprises atmospheric and vacuum distillation unit and catalytic cracking riser, described riser tube bottom is communicated with feeding line, riser tube top exit place is communicated with gas pipeline, riser tube middle part is communicated with quenched water pipeline, it is characterized in that, described riser tube middle part arranges introduction pipe line, and introduction pipe line is communicated with respectively described quenched water pipeline and quenching oil pipeline, and quenching oil pipeline is communicated with described atmospheric and vacuum distillation unit.
On described quenched water pipeline, quenched water control valve is set.
On described quenching oil pipeline, quenching oil control valve is set.
In the introduction pipe line at described riser tube middle part, be provided for controlling the overhead control valve of quenched water pipeline and quenching oil pipeline.
Described leg outlet place set temperature Table A.
Described riser tube middle part set temperature table B.
A described normal line oil is the light oil constituents in petroleum refining process, and boiling range scope is 150 ℃～280 ℃.
Described quenching oil implantation temperature is 30 ℃～200 ℃, and pressure is 0.3MPa～0.6MPa.
Beneficial effect of the present invention is: yield of gasoline rises, and catalytic cracking coking yield declines, and catalytic cracked dry gas and yield of liquefied gas slightly decline, and diesel yield slightly rises; Catalytic cracking unit processing benefit increases.
Accompanying drawing explanation
Fig. 1 is the structural representation that improves catalytically cracked gasoline yield using appts in the present invention.
Wherein, 1, feeding line, 2, quenched water pipeline, 3, quenching oil pipeline, 4, gas pipeline, 5, quenched water control valve, 6, quenching oil control valve, 7, overhead control valve, 8, thermometer B, 9, thermometer A, 10, riser tube, 11, introduction pipe line.
Embodiment
Below in conjunction with drawings and Examples, illustrate the present invention.
The catalytic cracking unit of 2,900,000 tons/year of scales of take is example:
Embodiment 1:
Conventional catalyst cracking technique: only with quenched water, the catalytic cracking reaction in riser tube is controlled.
Using appts: comprise feeding line 1 and riser tube 10, riser tube 10 bottoms are communicated with feeding line 1, and riser tube 10 top exit places are communicated with gas pipeline 4, and riser tube 10 middle parts are communicated with quenched water pipeline 2, riser tube 10 exit set temperature Table As 9.
In embodiment 1, typical condition yield of gasoline is 47.3%, and catalytic cracking green coke and slurry oil yield are 7.9%, and catalytic cracked dry gas and yield of liquefied gas are 23.4%, and diesel yield is 21.4%.
Embodiment 2:
Catalytic cracking process is: in the catalytic cracking process of above-described embodiment 1, inject riser tube 10 middle parts of catalytic cracking unit using a normal line oil of atmospheric and vacuum distillation unit as quenching oil.Quenching oil injects continuously.Quenching oil is the light oil constituents in petroleum refining process, and boiling range scope is 150 ℃～280 ℃.Quenching oil implantation temperature is 30 ℃～200 ℃, and pressure is 0.3MPa～0.6MPa.
The device that technique of the present invention is used is: on the basis of the catalytic cracking unit of using at above-described embodiment 1, introduce using the normal line oil of atmospheric and vacuum distillation unit as the quenching oil pipeline 3 of quenching oil at riser tube 10 middle parts.Its structure is: comprise atmospheric and vacuum distillation unit and catalytic cracking riser 10, riser tube 10 bottoms are communicated with feeding line 1, riser tube 10 top exit places are communicated with gas pipeline 4, riser tube 10 middle parts are communicated with quenched water pipeline 2, riser tube 10 middle parts arrange introduction pipe line 11, introduction pipe line 11 is communicated with respectively quenched water pipeline 2 and quenching oil pipeline 3, and quenching oil pipeline 3 is communicated with atmospheric and vacuum distillation unit.Quenched water control valve 5 is set on quenched water pipeline 2.Quenching oil control valve 6 is set on quenching oil pipeline 3.In introduction pipe line 11, be provided for controlling the overhead control valve 7 of quenched water pipeline 2 and quenching oil pipeline 3.Riser tube 10 exit set temperature Table As 9.Riser tube middle part set temperature table B8.
In embodiment 2, typical condition yield of gasoline is 49.08%, and catalytic cracking green coke and slurry oil yield are 7.29%, and catalytic cracked dry gas and yield of liquefied gas are 21.8%, and diesel yield is 21.8%.
Above-described embodiment 1 shows with the result of embodiment 2, catalytic cracking unit for 2,900,000 tons/year of scales, after using a normal line oil of 20 tons/hour as catalytic cracking unit riser tube, the quenching oil at middle part injects, catalytic cracking unit product is distributed and produced considerable influence, yield of gasoline has risen 1.78%, catalytic cracking burning rate has declined 0.61%, and catalytic cracked dry gas and yield of liquefied gas slightly decline, and diesel yield slightly rises.By a normal line oil is entered to catalytic cracking unit freshening benefit results of measuring, show, catalytic cracking unit processing benefit has increased by 57.7 yuan/ton of raw materials.Catalytic cracking unit amount of finish is by 2,900,000 tons/year of calculating, and annual benefit is 1.67 hundred million yuan.
Claims (10)
1. a method that improves catalytically cracked gasoline yield, is characterized in that, in catalytic cracking process, injects riser tube (10) middle part of catalytic cracking unit using a normal line oil of atmospheric and vacuum distillation unit as quenching oil.
2. the method for raising catalytically cracked gasoline yield according to claim 1, is characterized in that, a described normal line oil is the light oil constituents in petroleum refining process, and boiling range scope is 150 ℃～280 ℃.
3. the method for raising catalytically cracked gasoline yield according to claim 1, is characterized in that, described quenching oil implantation temperature is 30 ℃～200 ℃, and pressure is 0.3MPa～0.6MPa.
4. according to the method for the increase catalytic cracking unit yield of gasoline described in claim 1 or 3, it is characterized in that, the injection mode of described quenching oil is to inject continuously.
5. the method for raising catalytically cracked gasoline yield according to claim 1, the device of its use comprises the riser tube (10) of atmospheric and vacuum distillation unit and catalytic cracking unit, described riser tube (10) bottom is communicated with feeding line (1), riser tube (10) top exit place is communicated with gas pipeline (4), riser tube (10) middle part is communicated with quenched water pipeline (2), it is characterized in that, described riser tube (10) middle part arranges introduction pipe line (11), introduction pipe line (11) is communicated with respectively described quenched water pipeline (2) and quenching oil pipeline (3), quenching oil pipeline (3) is communicated with described atmospheric and vacuum distillation unit.
6. the device of raising catalytically cracked gasoline yield according to claim 5, is characterized in that, quenched water control valve (5) is set on described quenched water pipeline (2).
7. the device of raising catalytically cracked gasoline yield according to claim 5, is characterized in that, quenching oil control valve (6) is set on described quenching oil pipeline (3).
8. the device of raising catalytically cracked gasoline yield according to claim 5, is characterized in that, is provided for controlling the overhead control valve (7) of quenched water pipeline (2) and quenching oil pipeline (3) in the introduction pipe line (11) at described riser tube (10) middle part.
9. the device of raising catalytically cracked gasoline yield according to claim 5, is characterized in that, described riser tube (10) exit set temperature Table A (9).
10. the device of raising catalytically cracked gasoline yield according to claim 5, is characterized in that, described riser tube (10) middle part set temperature table B(8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210302704.5A CN103627426A (en) | 2012-08-23 | 2012-08-23 | Method for improving gasoline yield of catalytic cracking technology and device thereof |
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| CN201210302704.5A CN103627426A (en) | 2012-08-23 | 2012-08-23 | Method for improving gasoline yield of catalytic cracking technology and device thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776948A (en) * | 1984-01-30 | 1988-10-11 | Williams, Phillips & Umphlett | Fractionation method with quench liquid recycle |
| CN1055380A (en) * | 1990-03-26 | 1991-10-16 | 阿莫科公司 | Use the catalytic pyrolysis of quenching |
| JP2001172645A (en) * | 1999-12-21 | 2001-06-26 | Idemitsu Kosan Co Ltd | Method for fluid catalytic cracking of hydrocarbon oil |
| CN1600838A (en) * | 2003-09-28 | 2005-03-30 | 中国石油化工股份有限公司 | Method for cracking hydrocarbon oil |
| CN101362669A (en) * | 2007-08-09 | 2009-02-11 | 中国石油化工股份有限公司 | Catalytic conversion method of ethylene, propylene and aromatic hydrocarbon preparation |
| CN101724430A (en) * | 2008-10-31 | 2010-06-09 | 中国石油化工股份有限公司 | Method for preparing light-weight fuel oil and propylene from inferior raw oil |
| CN101760227A (en) * | 2008-12-25 | 2010-06-30 | 中国石油化工股份有限公司 | Catalytic conversion method for preparing propylene and high octane gasoline |
| CN101993726A (en) * | 2009-08-31 | 2011-03-30 | 中国石油化工股份有限公司石油化工科学研究院 | Method for preparing high-quality fuel oil from inferior crude oil |
| CN102021031A (en) * | 2009-09-17 | 2011-04-20 | 中国石油化工股份有限公司 | Method for preparing superior fuel oil from inferior crude oil |
-
2012
- 2012-08-23 CN CN201210302704.5A patent/CN103627426A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776948A (en) * | 1984-01-30 | 1988-10-11 | Williams, Phillips & Umphlett | Fractionation method with quench liquid recycle |
| CN1055380A (en) * | 1990-03-26 | 1991-10-16 | 阿莫科公司 | Use the catalytic pyrolysis of quenching |
| JP2001172645A (en) * | 1999-12-21 | 2001-06-26 | Idemitsu Kosan Co Ltd | Method for fluid catalytic cracking of hydrocarbon oil |
| CN1600838A (en) * | 2003-09-28 | 2005-03-30 | 中国石油化工股份有限公司 | Method for cracking hydrocarbon oil |
| CN101362669A (en) * | 2007-08-09 | 2009-02-11 | 中国石油化工股份有限公司 | Catalytic conversion method of ethylene, propylene and aromatic hydrocarbon preparation |
| CN101724430A (en) * | 2008-10-31 | 2010-06-09 | 中国石油化工股份有限公司 | Method for preparing light-weight fuel oil and propylene from inferior raw oil |
| CN101760227A (en) * | 2008-12-25 | 2010-06-30 | 中国石油化工股份有限公司 | Catalytic conversion method for preparing propylene and high octane gasoline |
| CN101993726A (en) * | 2009-08-31 | 2011-03-30 | 中国石油化工股份有限公司石油化工科学研究院 | Method for preparing high-quality fuel oil from inferior crude oil |
| CN102021031A (en) * | 2009-09-17 | 2011-04-20 | 中国石油化工股份有限公司 | Method for preparing superior fuel oil from inferior crude oil |
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Application publication date: 20140312 |