CN201361583Y - Built-in upright tubular third-stage cyclone separator - Google Patents
Built-in upright tubular third-stage cyclone separator Download PDFInfo
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- CN201361583Y CN201361583Y CNU2008202389993U CN200820238999U CN201361583Y CN 201361583 Y CN201361583 Y CN 201361583Y CN U2008202389993 U CNU2008202389993 U CN U2008202389993U CN 200820238999 U CN200820238999 U CN 200820238999U CN 201361583 Y CN201361583 Y CN 201361583Y
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- cyclone separator
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- regenerator
- delivery pipe
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Abstract
The utility model discloses a built-in upright tubular third-stage cyclone separator, which aims to solve problems that expansion joints disposed on catalyst discharge pipes of existing built-in upright tubular third-stage cyclone separators are easy to be damaged, or expansion bent pipes arranged on the catalyst discharge pipes are difficult to line heat insulating and wearing-resistant linings. A catalyst discharge pipe of the built-in upright tubular third-stage cyclone separator comprises a catalyst discharge pipe straight pipe section (81), a catalyst discharge pipe outlet pipe section (82) and a steering elbow (83) connected with the catalyst discharge pipe straight pipe section and the catalyst discharge pipe outlet pipe section. The catalyst discharge pipe is disposed inside the third-stage cyclone separator. The catalyst discharge pipe straight pipe section is disposed in the area between the lower portion of a dust collecting chamber (11) and the upper portion of an upper partition plate (6), and the catalyst discharge pipe outlet pipe section passing through the top of the third-stage cyclone separator leads to the outside of a reactor or a regenerator (13). The third-stage cyclone separator is mainly applied to a catalyst separation recycling system or a regeneration flue gas energy recycling system in oil gas of fluidization reaction regeneration devices for petrochemical industry and coal chemical industry.
Description
Technical field
The utility model relates to a kind of built-in vertical pipe type third level cyclone separator, be used in the oil gas catalyst separation recovery system or regenerated flue gas energy-recuperation system of petrochemical industry and Coal Chemical Industry industry fluidization reaction regeneration device catalyst being separated with oil gas or flue gas.
Background technology
In the fluidization reaction regeneration device of petrochemical industry and Coal Chemical Industry industry, the catalyst separation recovery system in the oil gas or the energy-recuperation system of the regenerated flue gas part that is absolutely necessary, the third level cyclone separator in these systems is again one of key equipment.In third level cyclone separator, there is one type to be built-in, be built in the top of reactor or regenerator.A kind of built-in vertical pipe type third level cyclone separator that " oil Refining Technologies and engineering " magazine o. 11th in 2005 is introduced in " the design new concept of three-stage cyclone separator " literary composition is provided with clean gas outlet, catalyst delivery pipe, hangs tube, conically shaped, upper spacer, lower clapboard, vertical separation single tube.The inner space of conically shaped constitutes dust storage chamber, and upper spacer, lower clapboard and the space of hanging between the tube constitute inlet plenum.Axial line around reactor or regenerator in reactor or the regenerator is provided with first order cyclone separator and second level cyclone separator in groups, and the gas outlet tube of second level cyclone separator is connected with inlet plenum by hanging tube.The catalyst delivery pipe is located at the below of built-in vertical pipe type third level cyclone separator outside, be used for vertical separation single tube is disposed to catalyst dust (and blowdown gas) in the dust storage chamber outside reactor or regenerator are drawn in the bottom, deliver to the fourth stage cyclone separator of being located at reactor or regenerator outside.The inlet of catalyst delivery pipe is welded to connect the bottom in conically shaped, is connected with dust storage chamber; And the catalyst delivery pipe leads to reactor or regenerator outside through the sidewall (welding is adopted in the junction) of reactor or regenerator, and outlet links to each other with fourth stage cyclone separator.Above-mentioned built-in vertical pipe type third level cyclone separator (comprising the catalyst delivery pipe that it is set), in reactor or regenerator running, because of reasons such as the temperature difference, and exist very big axial and radial thermal expansion amount difference between reactor or the regenerator sidewall, need consider this problem when the catalyst delivery pipe is set.Because the catalyst delivery pipe is fixedlyed connected with the sidewall of reactor or regenerator with the bottom of conically shaped respectively, thus on the catalyst delivery pipe expansible bend need be set, or expansion joint is set, to absorb above-mentioned very big axial and radial thermal expansion amount difference.When expansion joint is set, also need setting to turn to elbow on the catalyst delivery pipe.Expansion joint itself is a consumable accessory, is easy to damage, and can influence the device normal running, even causes device to stop work.When on the catalyst delivery pipe expansible bend being set, because the length very long (being generally about 10 meters) of expansible bend, so be difficult for the liner insulating and wearing-resistant lining.
Summary of the invention
The purpose of this utility model provides a kind of built-in vertical pipe type third level cyclone separator, with solve that the expansion joint that is provided with on the existing built-in existing catalyst delivery pipe of vertical pipe type third level cyclone separator is easy to damage or the catalyst delivery pipe on the expansible bend that is provided be difficult for the problem of liner insulating and wearing-resistant lining.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of built-in vertical pipe type third level cyclone separator, be built in the top of reactor or regenerator, be provided with the clean gas outlet, the catalyst delivery pipe, hang tube, conically shaped, upper spacer, lower clapboard, vertical separation single tube, the inner space of conically shaped constitutes dust storage chamber, upper spacer, lower clapboard and the space of hanging between the tube constitute inlet plenum, axial line around reactor or regenerator in reactor or the regenerator is provided with first order cyclone separator and second level cyclone separator in groups, the gas outlet tube of second level cyclone separator is connected with inlet plenum by hanging tube, it is characterized in that: the catalyst delivery pipe is by catalyst delivery pipe straight length, catalyst delivery pipe outlet pipe section and the elbow that turns to that connects these two pipeline sections are formed, be located at built-in vertical pipe type third level cyclone separator inside, catalyst delivery pipe straight length is located at the section between dust storage chamber bottom to the upper spacer top, its bottom is catalyst delivery pipe inlet, catalyst delivery pipe outlet pipe section leads to reactor or regenerator outside through the top of built-in vertical pipe type third level cyclone separator, turns to and is lined with insulating and wearing-resistant lining in the elbow.
The utility model, catalyst delivery pipe are located at built-in vertical pipe type third level cyclone separator inside; Utilize the low characteristics of pressure ratio dust storage chamber internal pressure in catalyst delivery pipe exit, catalyst dust in the dust storage chamber and blowdown gas are discharged (normally being disposed to the fourth stage cyclone separator of being located at reactor or regenerator outside) from the top of built-in vertical pipe type third level cyclone separator.Adopt the utility model, have following beneficial effect: catalyst delivery pipe straight length is located at the section between dust storage chamber bottom to the upper spacer top of built-in vertical pipe type third level cyclone separator, is welded to connect with upper spacer and lower clapboard.Catalyst delivery pipe inlet is positioned at the bottom of dust storage chamber, is free end.Catalyst delivery pipe outlet pipe section then leads to reactor or regenerator outside through the top of built-in vertical pipe type third level cyclone separator.A kind of built-in vertical pipe type third level cyclone separator of the present utility model, the top of hanging tube is provided with three and revolves the top end socket, is positioned at the outside of reactor or regenerator top end socket.The clean gas outlet is located at three and is revolved on the end socket of top, and catalyst delivery pipe outlet pipe section is through the tube wall of clean gas outlet or revolve the top end socket through three and lead to reactor or regenerator outside.Between the tube wall of catalyst delivery pipe outlet pipe section and clean gas outlet or and three revolve between the end socket of top to adopt and be welded to connect.Built-in vertical pipe type third level cyclone separator is positioned at part (mainly being to hang tube, upper spacer and lower clapboard) and the catalyst delivery pipe within reactor or the regenerator, and reactor or regenerator top end socket and the clean gas outlet or three in reactor or regenerator outside revolve between the end socket of top, axially the thermal expansion amount difference that reaches radially is all minimum, so on the catalyst delivery pipe expansion joint or expansible bend needn't be set.The another kind of built-in vertical pipe type third level cyclone separator of the utility model, the top of hanging tube is connected on reactor or the regenerator top end socket.The clean gas outlet is located on reactor or the regenerator top end socket, and catalyst delivery pipe outlet pipe section leads to reactor or regenerator outside through the tube wall of clean gas outlet or through reactor or regenerator top end socket.Between the tube wall of catalyst delivery pipe outlet pipe section and clean gas outlet or and reactor or regenerator top end socket between adopt and be welded to connect.Built-in vertical pipe type third level cyclone separator is positioned at part (mainly being to hang tube, upper spacer and lower clapboard) and the catalyst delivery pipe within reactor or the regenerator, and reactor or regenerator top end socket and between the clean gas outlet of reactor or regenerator outside, or only and between reactor or the regenerator top end socket, axially the thermal expansion amount difference that reaches radially is all minimum, so also expansion joint or expansible bend needn't be set on the catalyst delivery pipe in such cases.
The vertical pipe type third level cyclone separator that the utility model is built-in owing on the catalyst delivery pipe expansion joint or expansible bend are not set, thereby does not exist expansion joint to be easy to damage or expansible bend is difficult for the problem of liner insulating and wearing-resistant lining.The set elbow that turns on the catalyst delivery pipe, length has only the hundreds of millimeter, is easy to the liner insulating and wearing-resistant lining.
The vertical pipe type third level cyclone separator that the utility model is built-in, be mainly used in the catalyst separation recovery system or regenerated flue gas energy-recuperation system in the oil gas of petroleum chemical industry fluidized catalytic cracker, fluidized catalytic cracking unit and Coal Chemical Industry industry methanol-to-olefins device, carry out separating of catalyst and oil gas or flue gas.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.The drawings and specific embodiments do not limit the claimed scope of the utility model.
Description of drawings
Fig. 1 is that a kind of built-in vertical pipe type third level cyclone separator of the present utility model (be provided with three and revolve the top end socket) is built in the structural representation in reactor or the regenerator.
Fig. 2 is the A-A echelon sectional view among Fig. 1.
Fig. 3 is that catalyst delivery pipe outlet pipe section revolves the schematic diagram that the top end socket leads to reactor or regenerator outside through three.
Fig. 4 is that the built-in vertical pipe type third level cyclone separator of another kind of the present utility model (be not provided with three and revolve the top end socket) is built in the structural representation in reactor or the regenerator.
The specific embodiment
Referring to Fig. 1 and Fig. 2, a kind of built-in vertical pipe type third level cyclone separator (abbreviating third level cyclone separator as) of the present utility model is built in the top of reactor or regenerator 13, and is coaxial with reactor or regenerator 13.It is provided with clean gas outlet 1, catalyst delivery pipe, hangs tube 3, conically shaped 4, upper spacer 6, lower clapboard 7, vertical separation single tube 5.Hanging tube 3 top is provided with three and revolves top end socket 2, three and revolve the outside that top end socket 2 is positioned at reactor or regenerator top end socket 14.Hang tube 3 and be welded to connect revolving the cylindrical shell place of top end socket 2 and reactor or regenerator top end socket 14, built-in vertical pipe type third level cyclone separator is fixed with this near three.Described clean gas outlet 1 is located at three and is revolved on the top end socket 2, and employing is welded to connect.Vertical separation single tube 5 is installed on upper spacer 6 and the lower clapboard 7, installs a plurality ofly, arranges some circles (referring to Fig. 2) around the axial line of third level cyclone separator.Upper spacer 6 and lower clapboard 7 are fixed in and hang on the tube 3; They can be the spherical cap-shaped structures of epirelief as shown in Figure 1, also can be recessed spherical cap-shaped structures (figure slightly).Conically shaped 4 is located at the bottom of hanging tube 3, and its inner space constitutes dust storage chamber 11.Upper spacer 6, lower clapboard 7 and the space formation inlet plenum 10, three that hangs between the tube 3 revolve top end socket 2, hang the space formation collection chamber 9 between tube 3 and the upper spacer 6.
Axial line around reactor or regenerator 13 in reactor or the regenerator 13 is provided with first order cyclone separator 15 and second level cyclone separator 16 in groups.Reactor or regenerator top end socket 14 are provided with a seat stand 18, by suspension rod 19, suspension bracket 20 first order cyclone separator 15 are hung in reactor or the regenerator 13 together with second level cyclone separator 16.The gas outlet tube 17 of second level cyclone separator is connected with inlet plenum 10 by hanging tube 3.Referring to Fig. 2 and Fig. 1, the gas outlet tube 17 of a plurality of second level cyclone separator is communicated with it along the circumferencial direction of inlet plenum 10, can make the dusty gas (referring to be entrained with the oil gas or the flue gas of catalyst dust) of gas outlet tube 17 discharges of second level cyclone separator enter inlet plenum 10 equably from many places, and then be assigned to each vertical separation single tube 5 equably and carry out gas solid separation, help improving the separative efficiency of third level cyclone separator.
Referring to Fig. 1, the catalyst delivery pipe is made up of catalyst delivery pipe straight length 81, catalyst delivery pipe outlet pipe section 82 and the elbow 83 that turns to that connects these two pipeline sections, and is located at built-in vertical pipe type third level cyclone separator inside.Catalyst delivery pipe straight length 81 is located at the section (space of upper spacer 6 tops is a collection chamber 9) between dust storage chamber 11 bottoms to upper spacer 6 tops, generally is the axial line setting along third level cyclone separator.The bottom of catalyst delivery pipe straight length 81 is catalyst delivery pipe inlet 84, is positioned at the bottom of dust storage chamber 11.Catalyst delivery pipe outlet pipe section 82 tube walls through clean gas outlet 1 lead to reactor or regenerator 13 outsides, and catalyst delivery pipe outlet 85 generally is to link to each other with the fourth stage cyclone separator of being located at reactor or regenerator 13 outsides (figure slightly).Turn to be lined with insulating and wearing-resistant lining 21 (thickness is generally 20 or 25 millimeters) in the elbow 83, to prevent that swiftly flowing catalyst dust causes wearing and tearing in the catalyst delivery pipe.Catalyst delivery pipe straight length 81 and catalyst delivery pipe outlet pipe section 82 needn't liner insulating and wearing-resistant linings 21, and its diameter is generally identical, and nominal diameter generally is DN400～DN600 millimeter.Turn to the length of elbow 83 to be generally hundreds of millimeter (620～950 millimeters); Nominal diameter is greater than the nominal diameter of catalyst delivery pipe straight length 81 and catalyst delivery pipe outlet pipe section 82, and is welded to connect by small cone section respectively between these two pipeline sections.Turn to the interior diameter (calculate on the surface of pressing the insulating and wearing-resistant lining 21 of its liner) of elbow 83, then generally equate with the interior diameter of catalyst delivery pipe straight length 81 and catalyst delivery pipe outlet pipe section 82.
Referring to Fig. 3, catalyst delivery pipe outlet pipe section 82 also can revolve top end socket 2 through three and lead to reactor or regenerator 13 outsides.
Between catalyst delivery pipe straight length 81 and upper spacer 6 and the lower clapboard 7, between the tube wall of catalyst delivery pipe outlet pipe section 82 and clean gas outlet 1 (referring to Fig. 1) or and three revolve (referring to Fig. 3) between the top end socket 2, all adopt to be welded to connect.
Referring to Fig. 1 and Fig. 2, third level cyclone separator of the present utility model hangs the convex section 31 that tube 3 sections at inlet plenum 10 are preferably enlarged-diameter.Convex section 31 comprises one section cylindrical shell and two awl sections, and two awl sections are welded to connect the two ends of this section cylindrical shell respectively with the body that hangs tube 3.The port of export tube wall of second level cyclone separator gas outlet tube 17 and the cylindrical shell of convex section 31 also adopt and are welded to connect, and its outlet feeds inlet plenum 10.The interior diameter of convex section 31 cylindrical shells is generally 1.05～1.15 times that hang tube 3 body interior diameters.Adopt the structure of convex section 31, advantage be when dusty gas when the gas outlet tube 17 of second level cyclone separator enters inlet plenum 10, cushion space, the assurance air inlet that can increase dusty gas are even, help improving the separative efficiency of third level cyclone separator.Simultaneously, near the outlet of the gas outlet tube 17 of second level cyclone separator, the vertical separation single tube 5 of outmost turns is not installed vertical separation single tube (referring to Fig. 2), with impact that reduces dusty gas and the degree of irregularity that reduces dust-laden distribution of gas in the inlet plenum 10.
Referring to Fig. 1, three revolve on the top end socket 2 and the bottom of conically shaped 4 is provided with manhole 12, enter in the third level cyclone separator for personnel and check, keep in repair.
Third level cyclone separator shown in Figure 1 is provided with three and revolves top end socket 2.The utility model can also adopt third level cyclone separator as shown in Figure 4.With the main difference of third level cyclone separator shown in Figure 1 be, third level cyclone separator shown in Figure 4 is not provided with three and revolves the top end socket, will hang tube 3 tops and seal with the circular annular region between the clean gas outlet 1 but use reactor or regenerator top end socket 14.The top of hanging tube 3 is connected on reactor or the regenerator top end socket 14, and clean gas outlet 1 also is located on reactor or the regenerator top end socket 14 and (is generally all adopted welding).Reactor or regenerator top end socket 14, the space of hanging between tube 3 and the upper spacer 6 constitute collection chamber 9.Be located at three manholes 12 that revolve on the top end socket 2 among Fig. 1, in Fig. 4, change on the reactor of being located at the corresponding part in position of third level cyclone separator or regenerator top end socket 14.Referring to Fig. 4, catalyst delivery pipe outlet pipe section 82 tube walls through clean gas outlet 1 lead to reactor or regenerator 13 outsides.Catalyst delivery pipe outlet pipe section 82 also can lead to reactor or regenerator 13 outsides through reactor or regenerator top end socket 14, and accompanying drawing omits.Between the tube wall of catalyst delivery pipe outlet pipe section 82 and clean gas outlet 1 (referring to Fig. 4) or and reactor or regenerator top end socket 14 between (figure slightly), all adopt to be welded to connect.
Among the utility model Fig. 1 to Fig. 4, same reference numerals is represented identical technical characterictic; Reference numeral 21 is all represented insulating and wearing-resistant lining.In the accompanying drawing, parts such as first order cyclone separator 15, second level cyclone separator 16, suspension bracket 23 are not analysed and observe.
Be example with third level cyclone separator shown in Figure 1 below, operating process of the present utility model is described.In reactor or regenerator 13, be entrained with the oil gas of a large amount of catalyst dusts or flue gas through first order cyclone separator 15 and second level cyclone separator 16 after separatings, the oil gas or the flue gas (dusty gas) that still are entrained with the part catalyst dust enter the inlet plenum 10 of built-in vertical pipe type third level cyclone separator from the gas outlet tube 17 of second level cyclone separator, and then are assigned to each vertical separation single tube 5 and carry out further gas solid separation.Vertical separation single tube 5 isolated Purge gas enter collection chamber 9, discharge outside third level cyclone separator and reactor or the regenerator 13 through clean gas outlet 1 then.The blowdown gas of vertical separation single tube 5 isolated catalyst dusts and discharge (volume flow of blowdown gas be generally enter vertical separate dusty gas total volumetric flow rate in the single tube 5 3%～5%) enter dust storage chamber 11.Pressure in the dust storage chamber 11 is generally 0.2～0.3MPa; Catalyst delivery pipe outlet 85 links to each other with the fourth stage cyclone separator of being located at reactor or regenerator 13 outsides, and the pressure that the catalyst delivery pipe exports 85 places generally hangs down 0.008～0.015MPa than the pressure in the dust storage chamber 11.Under the effect of above-mentioned pressure reduction, catalyst dust in the dust storage chamber 11 and blowdown gas enter the catalyst delivery pipe by catalyst delivery pipe inlet 84, upwards flow along catalyst delivery pipe straight length 81, flow through then and turn to elbow 83, catalyst delivery pipe outlet pipe section 82, be disposed to fourth stage cyclone separator, further carry out gas solid separation.
In above-mentioned operating process, the catalyst powder dust concentration that enters in the dusty gas in the inlet plenum 10 is generally 50～500 milligrams/cubic metre, and the meta particle diameter of catalyst dust is generally 10～20 microns.The flow velocity of catalyst delivery pipe inner catalyst dust and blowdown gas is generally 20～40 meter per seconds.
Claims (4)
1, a kind of built-in vertical pipe type third level cyclone separator, be built in the top of reactor or regenerator (13), be provided with clean gas outlet (1), the catalyst delivery pipe, hang tube (3), conically shaped (4), upper spacer (6), lower clapboard (7), vertical separation single tube (5), the inner space of conically shaped (4) constitutes dust storage chamber (11), upper spacer (6), lower clapboard (7) and the space of hanging between the tube (3) constitute inlet plenum (10), axial line around reactor or regenerator (13) in reactor or the regenerator (13) is provided with first order cyclone separator (15) and second level cyclone separator (16) in groups, the gas outlet tube of second level cyclone separator (17) is connected with inlet plenum (10) by hanging tube (3), it is characterized in that: the catalyst delivery pipe is by catalyst delivery pipe straight length (81), catalyst delivery pipe outlet pipe section (82) and the elbow (83) that turns to that connects these two pipeline sections are formed, be located at built-in vertical pipe type third level cyclone separator inside, catalyst delivery pipe straight length (81) is located at the section between dust storage chamber (11) bottom to upper spacer (6) top, its bottom is catalyst delivery pipe inlet (84), catalyst delivery pipe outlet pipe section (82) leads to reactor or regenerator (13) outside through the top of built-in vertical pipe type third level cyclone separator, turn to and be lined with insulating and wearing-resistant lining (21) in the elbow (83).
2, according to the described built-in vertical pipe type third level cyclone separator of claim 1, it is characterized in that: the top of hanging tube (3) is provided with three and revolves top end socket (2), be positioned at the outside of reactor or regenerator top end socket (14), described clean gas outlet (1) is located at three and is revolved on the top end socket (2), and catalyst delivery pipe outlet pipe section (82) is through the tube wall of clean gas outlet (1) or revolve top end socket (2) through three and lead to reactor or regenerator (13) outside.
3, according to the described built-in vertical pipe type third level cyclone separator of claim 1, it is characterized in that: the top of hanging tube (3) is connected on reactor or the regenerator top end socket (14), described clean gas outlet (1) is located on reactor or the regenerator top end socket (14), and catalyst delivery pipe outlet pipe section (82) leads to reactor or regenerator (13) outside through the tube wall of clean gas outlet (1) or through reactor or regenerator top end socket (14).
4, according to claim 1 or 2 or 3 described built-in vertical pipe type third level cyclone separators, it is characterized in that: hanging tube (3) is the convex section (31) of enlarged-diameter at the section of inlet plenum (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202389993U CN201361583Y (en) | 2008-12-25 | 2008-12-25 | Built-in upright tubular third-stage cyclone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202389993U CN201361583Y (en) | 2008-12-25 | 2008-12-25 | Built-in upright tubular third-stage cyclone separator |
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| Publication Number | Publication Date |
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| CN201361583Y true CN201361583Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202389993U Expired - Lifetime CN201361583Y (en) | 2008-12-25 | 2008-12-25 | Built-in upright tubular third-stage cyclone separator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580066A (en) * | 2018-03-21 | 2018-09-28 | 上海卓旋化工科技有限公司 | High-temperature and high-pressure wearable insulated lining efficient cyclone separator for coal gasification furnace |
| CN109174477A (en) * | 2018-10-22 | 2019-01-11 | 宁夏宝丰能源集团股份有限公司 | Regenerator cyclone separator and its wear-resisting production method |
-
2008
- 2008-12-25 CN CNU2008202389993U patent/CN201361583Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580066A (en) * | 2018-03-21 | 2018-09-28 | 上海卓旋化工科技有限公司 | High-temperature and high-pressure wearable insulated lining efficient cyclone separator for coal gasification furnace |
| CN109174477A (en) * | 2018-10-22 | 2019-01-11 | 宁夏宝丰能源集团股份有限公司 | Regenerator cyclone separator and its wear-resisting production method |
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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 |
Owner name: SINOPEC LUOYANG ENGINEERING CO., LTD. Free format text: FORMER NAME: CHINA PETROCHEMICAL CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 471003 Zhongzhou West Road, Jianxi District, Henan, No. 27, No. Patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Address before: 471003 Zhongzhou West Road, Jianxi District, Henan, No. 27, No. Patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |
|
| CX01 | Expiry of patent term |