CN101560412B - Conversion section front gas, heat, oil water separator - Google Patents
Conversion section front gas, heat, oil water separator Download PDFInfo
- Publication number
- CN101560412B CN101560412B CN200910015705XA CN200910015705A CN101560412B CN 101560412 B CN101560412 B CN 101560412B CN 200910015705X A CN200910015705X A CN 200910015705XA CN 200910015705 A CN200910015705 A CN 200910015705A CN 101560412 B CN101560412 B CN 101560412B
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- gas
- heat
- shell
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- inner barrel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 39
- 239000008234 soft water Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims description 19
- 239000011148 porous material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000006835 compression Effects 0.000 abstract description 7
- 238000007906 compression Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000618 nitrogen fertilizer Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 98
- 239000003921 oil Substances 0.000 description 19
- 229920006395 saturated elastomer Polymers 0.000 description 17
- 238000012856 packing Methods 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 208000002925 dental caries Diseases 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- -1 heat Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A conversion section front gas, heat, oil water separator for semi-water gas treatment relates to the production of nitrogenous fertilizer; wherein the separator comprises a housing; the upper part ofthe cavity of the housing is provided with a U-shaped tube bank inner core; the tube bank inner core is placed in an inner cylinder cavity without bottom; the upper opening of the inner cylinder is i n fixed sealing connection with an upper sealing cover; the outside wall of the inner cylinder is provided with a gas inlet; the upper sealing cover is respectively provided with a soft water inlet and a hot water outlet; the outside wall of the upper part of the housing is provided with a gas outlet; the inside wall of the cavity of the housing at the lower part of the inner cylinder is mounted with a grid plate; the housing at the lower part of the grid plate is sealed; the invention can effectively condense and separate the water and oil, effectively use the compression heat of the gas fromthe second section of the compressor and has excellent effect of heat recovery.
Description
Technical field
The present invention relates to a kind of nitrogen fertilizer production equipment, relate in particular to the conversion section front gas, heat, the oil water separator that use in a kind of semiwater gas processing procedure.
Background technology
In little nitrogen fertilizer production, semiwater gas is after two sections on compressor is compressed to 0.8Mpa (or two kinds of pressure ratings of 1.3Mpa), and temperature in order to utilize this part gas heat of compression, directly gets into CO is transformed to CO about 130 ℃
2Conversion section, conversion section has been the equipment of transformationreation, conversion section is comprising oil water separator, saturated hot-water tower, heat exchanger, water heater, change furnace etc.; First behind oil water separator separating part profit from the semiwater gas that two sections on compressor comes out; Semiwater gas gets into saturated hot-water tower; Saturated hot-water tower has packing layer comprising saturator and hot-water tower in the saturator, semiwater gas gets into packing layer through the saturator inlet; The moisture content that increases semiwater gas promptly increases the moisture content in the semiwater gas; Semiwater gas goes out saturator outlet again, and the semiwater gas that exports out from saturator adds and gets into heat exchanger after water vapour replenishes the moisture content of semiwater gas, and the purpose that semiwater gas gets into heat exchanger is in order to improve temperature; The beds that the semiwater gas that comes out from heat exchanger gets into the change furnace carries out transformationreation, through transformationreation with CO in the semiwater gas and H
2The O reaction generates CO
2With H
2And heat release, contain CO from what change furnace came out
2With H
2Conversion gas get into heat exchanger; Because conversion temperature degree is different with the semiwater gas temperature; Through heat exchanger the heat in the conversion gas is reclaimed the temperature that is used for semiwater gas and improve, the conversion gas that comes out from heat exchanger gets into water heater, and the purpose that gets into water heater is that the heat in the conversion gas is reclaimed by hot water; The conversion gas that comes out from water heater gets into hot-water tower again, and the purpose that gets into hot-water tower is that the heat in the conversion gas is further reclaimed by hot water; The cycling use of water process of saturated hot-water tower hot water cyclesystem is: the soft water that soft water workshop section comes gets into water heater through pump; Get into saturator sprays the increase semiwater gas to semiwater gas moisture content after absorbing heat; The soft water that comes out from saturator gets into hot-water tower; Soft water carries out heat exchange with conversion gas and reclaims the heat in the conversion gas in hot-water tower, the soft water that comes out from hot-water tower recycles through softened water pump.
One, this flow process has become the historic old process of little nitrogenous fertilizer industry, in the drawback of long-term existence in service, never solves:
1, the semiwater gas temperature of compressor second stage exit is higher than the dew-point temperature of profit in the compressed gas about 130 ℃, lubricating oil and the moisture content of gas---water vapour that two sections cylinders of compressor inject; Can't be condensed; Under this temperature, get into the semiwater gas of conversion section, the amount of separating the profit in the semiwater gas undoubtedly is limited, and the beds that semiwater gas gets in saturator, heat exchanger, the change furnace successively all heats; Consequently cause the saturated hot-water tower hot water cyclesystem by pollutions such as greasy dirts; Cause total solids content high, the hot water blowdown flow rate is big, and heat and two sections heats of compression of bringing of compressor that the sewer of heat is taken out of offset basically; Also can make simultaneously hot-water tower outlet conversion temperature degree high, utilize the design original intention of the compressor second stage exit semiwater gas heat of compression fundamentally not realize.
2, a large amount of greasy dirts and salt are brought the change furnace beds into, volatilization, cracking at high temperature, and the part dirt remains in blocking catalyst micropore in the beds of change furnace upper strata on the one hand; Cause catalyst progressively to lose activity, even skinning, cause resistance to strengthen; Influence ordinary production, volatile matter gets into hypomere catalyst layer (in the low change catalyzer bed) on the other hand, in the low change catalyzer layer, condenses; Further the low catalyst that becomes of harm progressively loses activity low change catalyzer.
3, find that all the adhesion of saturator packing layer greasy dirt is stopped up serious during annual overhaul; Use the producer of structured packing, because a large amount of greasy dirt stops up the superiority of structured packing; Not only can not get performance, effect not as common fillers, causes the heat-transfer effect of packing layer semiwater gas and hot water poor on the contrary; It is few that saturated vapor is taken out of, and it is big to add steam consumption, increases cost.The cleaning of its packing layer greasy dirt is difficulty quite, and is time-consuming, take a lot of work, and it is serious to damage filler, after being cleared up greasy dirt reluctantly by the filler of oil pollution, re-uses, and one unloads a dress, and labour intensity is very big.
4, conversion section needs in the saturated hot-water tower hot water cyclesystem, to add a certain amount of soft water; To keep semiwater gas from the come out saturated vapor taken away of saturator; Make the hot water circuit amount reach balance, this part soft water of adding should heat to improve the hot water temperature, increases semiwater gas saturated vapor amount; Minimizing adds steam and mends into amount, reaches energy-saving and cost-reducing, the comprehensive purpose of effectively utilizing of heat energy.
Summary of the invention
The purpose of this invention is to provide oil, effective conversion section front gas, heat, the oil water separator of separated form water in a kind of use.
To achieve these goals, the technical scheme that the present invention takes is: a kind of conversion section front gas, heat, oil water separator, and its characteristics are: comprising shell; Cavity pocket of outer cover top is equipped with " U " type tube bank inner core; The tube bank inner core places the inner barrel cavity at a no end, and insert in the cavity pocket of outer cover inner barrel bottom, shell upper end one periphery and the fixed seal connection of inner barrel lateral wall; Inner barrel place suitable for reading is equipped with tube sheet; Top cover labyrinth is installed on the tube sheet, has the gas access on the inner barrel lateral wall of shell top, the gas access communicates with the inner barrel cavity; Have soft water inlet, hot water outlet on the top cover labyrinth, " U " type tube bank inner core two upper ends are passed tube sheet and fixed seal connection with it respectively, and soft water inlet, hot water outlet communicate with the two ends pore of " U " type tube bank inner core respectively; Have gas vent on the shell upper lateral wall, gas vent communicates with cavity pocket of outer cover; On the cavity pocket of outer cover madial wall of inner barrel below screen is installed, the body seal of screen below.
Said top cover labyrinth and tube sheet form inner chamber; Have dividing plate in the inner chamber; Dividing plate is divided into intake chamber, water-supplying chamber to inner chamber; The intake chamber upper end communicates with said soft water inlet, and the water-supplying chamber upper end communicates with said hot water outlet, and intake chamber, water-supplying chamber communicate with the two ends pore of said " U " type tube bank inner core respectively.
Have heat on the shell upper lateral wall of said screen top and wash the steam inlet, have the profit outlet on the shell upper lateral wall of screen below.
Have gas on the sidewall of said inner barrel lower end through breach, gas is positioned at the inner barrel lower end far away with said gas vent through breach, and gas is in the opposite direction through breach and gas vent.
Said " U " type tube bank inner core is an aluminum pipe.
On the said screen filler is housed, filler is positioned at the cavity pocket of outer cover in the said inner barrel outside.
Said filler is a steel Raschig ring filler.
When the present invention uses; The house steward that compressor second stage exit gas is compiled connects gas access of the present invention, and the oil-containing semiwater gas of two sections temperature of coming out of compressor about 130 ℃ gets into gas access of the present invention through the compressor second stage exit, gets into the inner barrel cavity in the tube bank inner core outside from top of the present invention; Carry out heat exchange with the soft water of in-core in the tube bank; At this moment semiwater gas is owing to separate most of heat, and temperature is controlled at below the dew point, (85 ℃-95 ℃ best); This temperature one is to help the profit condensation, the 2nd, and make the interior heated soft water of in-core of tube bank that a high relatively temperature arranged.Isolate that semiwater gas behind the heat is descending to get into the packing layer bottom of screen top through gas through breach, the gas that the semiwater gas baffling is up after separating oil content and reduce the temperature of semiwater gas through packing layer exports out from upper gas of the present invention again and send conversion section.Originally mend the cold soft water of saturated hot-water tower hot water cyclesystem, send into earlier and restrain interior in-core, after heating with the semiwater gas heat exchange in the tube bank inner core outside; Send into hot-water tower again; Soft water carries out heat exchange with conversion gas and reclaims the heat in the conversion gas in hot-water tower, the soft water that comes out from hot-water tower recycles through hot softened water pump, is the heat of compression of having utilized the compressor second stage exit equally; Just this part heat is to be carrier with soft water, sends into the saturated hot-water tower hot water cyclesystem.Changing in the former flow process gas, heat, profit, together to send into conversion section be that heat and gas are sent into conversion section respectively.
The tube bank inner core places the inner barrel cavity at the no end among the present invention, is to make things convenient for the recovery of heat to separate and guiding gas access arrangement bottom in the use of the present invention.
Filler is housed on the screen among the present invention, and filler is positioned at the cavity pocket of outer cover in the inner barrel outside, is to make things convenient for water-oil separating in the use of the present invention.
Have heat on the shell upper lateral wall of screen top among the present invention and wash the steam inlet; Have the profit outlet on the shell upper lateral wall of screen below; The effect one of profit outlet is the discharging that is used for the profit that ordinary production separated by the present invention, the 2nd, in the use of the present invention convenient when stopping heat wash down the greasy dirt that the reason packing layer adheres to.
Have gas on the sidewall of inner barrel lower end and pass through breach; Gas is positioned at the inner barrel lower end far away with gas vent through breach; Gas is in the opposite direction through breach and gas vent; Be to make things convenient for the descending elder generation of semiwater gas to get into the packing layer bottom in gas vent cavity pocket of outer cover far away through gas through breach in the use of the present invention, the gas that the semiwater gas baffling is up after separating oil content and reduce the temperature of semiwater gas through packing layer exports out from upper gas of the present invention again and send conversion section.
Therefore, advantageous effect of the present invention is:
1, changing in the former flow process gas, heat, profit in the use of the present invention, to send into conversion section simultaneously be that gas, heat are sent into conversion section respectively, separate behind oil, the water condensation and discharge, and be the compression heat energy that has utilized gas equally, reach the purpose of heat recovery.
2, key index is that gas is cooled to below the dew point in the use of the present invention, and the temperature of cooling back gas is too not low.One gets off oil, water condensation, and two have guaranteed the heat energy utilization of higher temperature, to satisfy the hot water magnitude of recruitment of saturated hot-water tower hot water cyclesystem, heat fully is utilized, otherwise can cause the hot water of low temperature superfluous.
3, in the use of the present invention since heated hot water be former saturated hot-water tower hot water cyclesystem mend into cold soft water; Sending into original benefit after the heating again goes into a little; The heat of gas below dew point sent into the saturated hot-water tower hot water cyclesystem equally, just is convenient to the condensation separation of oil, water in the gas, sees from the total value of heat; Still basically all send into the saturated hot-water tower hot water cyclesystem, kept the heat balance of original whole system.
The heating combined of 4, mending entry to the cooling of gas and saturated hot-water tower hot water cyclesystem in the use of the present invention together; Not as simple with the water quench semiwater gas; Need to consume a large amount of cooling waters; Simultaneously this part heat of compression water that is cooled is taken away and can not get reclaiming, and does not reach energy saving purposes.
5, major part was separated discharge in the present invention after the profit dirt of gas was condensed in the use of the present invention; Again through the crude water separator separates of conversion section; One alleviates the load of crude water separator separates; Two since gas below dew point, more help profit and further separate, more thorough water-oil separating.This has just fundamentally solved oil-containing water gaseous contamination saturated hot-water tower, has avoided high, the oil pollution beds of greasy dirt total solids content in the circulating hot water, makes the drawback of catalyst activity reduction.
6, during annual equipment rebuilding, the filler in the former saturator all can be by greasy dirt adhesion, obstruction, and resistance increases, even band water.Former change furnace beds can make bed resistance increase after producing the longest 1 year of half a year, has had a strong impact on and has produced load.After the present invention uses; This drawback is solved, and has safeguarded the heat-transfer effect of good saturator filler simultaneously, has saved and has added water vapour consumption; Fundamentally safeguarded the change furnace beds; Guaranteed that catalyst can not lose activity because of the pollution of greasy dirt in the change furnace beds, prolonged the service life of catalyst, guaranteed the long-period stable operation of producing.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done and to further describe:
A kind of conversion section front gas, heat, oil water separator, as shown in Figure 1, comprising shell 2; Shell 2 cavity tops are equipped with " U " type tube bank inner core 4; Tube bank inner core 4 places inner barrel 3 cavitys at a no end, and insert in shell 2 cavitys inner barrel 3 bottoms, shell 2 upper ends one periphery and inner barrel 3 lateral wall fixed seal connections; Inner barrel 3 places suitable for reading are equipped with tube sheet; Top cover labyrinth 8 is installed on the tube sheet, has gas access 5 on inner barrel 3 lateral walls of shell 2 tops, gas access 5 communicates with inner barrel 3 cavitys; Have soft water inlet 7, hot water outlet 6 on the top cover labyrinth 8,4 liang of upper ends of " U " type tube bank inner core are passed tube sheet and fixed seal connection with it respectively, and soft water inlet 7, hot water outlet 6 communicate with the two ends pore of " U " type tube bank inner core 4 respectively; Have gas vent 9 on the shell 2 upper outside walls, gas vent 9 communicates with shell 2 cavitys; On the shell 2 cavity madial walls of inner barrel 3 belows screen 1 is installed, shell 2 sealings of screen 1 below; In the present embodiment; Top cover labyrinth 8 forms inner chamber with tube sheet; Have dividing plate in the inner chamber, dividing plate is divided into intake chamber, water-supplying chamber to inner chamber, and the intake chamber upper end communicates with soft water inlet 7; The water-supplying chamber upper end communicates with hot water outlet 6, and intake chamber, water-supplying chamber communicate with the two ends pore of " U " type tube bank inner core 4 respectively; In the present embodiment, have heat on the shell 2 upper outside walls of screen 1 top and wash steam inlet 10, have profit outlet 11 on the shell 2 upper outside walls of screen 1 below; In the present embodiment, have gas on the inner barrel 3 lower end sidewalls through breach 12, gas is positioned at inner barrel 3 lower ends far away with gas vent 9 through breach 12, and gas is in the opposite direction through breach 12 and gas vent 9; In the present embodiment, " U " type tube bank inner core 4 is an aluminum pipe; In the present embodiment, filler 13 is housed on the screen 1, filler 13 is positioned at shell 2 cavitys in inner barrel 3 outsides; In the present embodiment, filler 13 is a steel Raschig ring filler.
Claims (7)
1. a conversion section front gas, heat, oil water separator; It is characterized in that: comprising shell (2), shell (2) cavity top is equipped with " U " type tube bank inner core (4), and tube bank inner core (4) places inner barrel (3) cavity at a no end; Insert in shell (2) cavity inner barrel (3) bottom; Shell (2) upper end one periphery and inner barrel (3) lateral wall fixed seal connection, inner barrel (3) place suitable for reading is equipped with tube sheet, and top cover labyrinth (8) is installed on the tube sheet; Have gas access (5) on inner barrel (3) lateral wall of shell (2) top, gas access (5) communicate with inner barrel (3) cavity; Have soft water inlet (7), hot water outlet (6) on the top cover labyrinth (8); " U " type tube bank inner core (4) two upper ends are passed tube sheet and fixed seal connection with it respectively, and soft water inlet (7), hot water outlet (6) communicate with the two ends pore of " U " type tube bank inner core (4) respectively; Have gas vent (9) on shell (2) the upper outside wall, gas vent (9) communicates with shell (2) cavity; On shell (2) the cavity madial wall of inner barrel (3) below screen (1) is installed, shell (2) sealing of screen (1) below.
2. conversion section front gas according to claim 1, heat, oil water separator; It is characterized in that: said top cover labyrinth (8) forms inner chamber with tube sheet; Have dividing plate in the inner chamber, dividing plate is divided into intake chamber, water-supplying chamber to inner chamber, and the intake chamber upper end communicates with said soft water inlet (7); The water-supplying chamber upper end communicates with said hot water outlet (6), and intake chamber, water-supplying chamber communicate with the two ends pore of said " U " type tube bank inner core (4) respectively.
3. conversion section front gas according to claim 2, heat, oil water separator; It is characterized in that: have heat on shell (2) the upper outside wall of said screen (1) top and wash steam inlet (10), have profit outlet (11) on shell (2) the upper outside wall of screen (1) below.
4. according to claim 1 or 2 or 3 described conversion section front gas, heat, oil water separator; It is characterized in that: have gas on the sidewall of said inner barrel (3) lower end through breach (12); Gas is positioned at inner barrel (3) lower end far away with said gas vent (9) through breach (12), and gas is in the opposite direction through breach (12) and gas vent (9).
5. conversion section front gas according to claim 4, heat, oil water separator is characterized in that: said " U " type tube bank inner core (4) is an aluminum pipe.
6. conversion section front gas according to claim 5, heat, oil water separator is characterized in that: filler (13) is housed on the said screen (1), and filler (13) is positioned at shell (2) cavity in said inner barrel (3) outside.
7. conversion section front gas according to claim 6, heat, oil water separator is characterized in that: said filler (13) is a steel Raschig ring filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910015705XA CN101560412B (en) | 2009-05-25 | 2009-05-25 | Conversion section front gas, heat, oil water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910015705XA CN101560412B (en) | 2009-05-25 | 2009-05-25 | Conversion section front gas, heat, oil water separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101560412A CN101560412A (en) | 2009-10-21 |
| CN101560412B true CN101560412B (en) | 2012-11-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910015705XA Expired - Fee Related CN101560412B (en) | 2009-05-25 | 2009-05-25 | Conversion section front gas, heat, oil water separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101560412B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829467B (en) * | 2010-06-03 | 2012-07-04 | 蓝星化工有限责任公司 | Gas-liquid separator |
| CN102407027B (en) * | 2011-11-21 | 2015-05-13 | 洛阳骏腾能源科技有限公司 | Gas-liquid two-stage separator and separation method for waste and old plastic granulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067597U (en) * | 1989-11-30 | 1990-12-19 | 李青芳 | Floating separator for mixture of oil and water |
| US5730868A (en) * | 1996-05-23 | 1998-03-24 | Cordani; Peter J. | Reusable spill containment apparatus |
| CN2435387Y (en) * | 2000-07-05 | 2001-06-20 | 曾金华 | Oil-water separator for treatment and reuse of oil-containing sewage |
-
2009
- 2009-05-25 CN CN200910015705XA patent/CN101560412B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067597U (en) * | 1989-11-30 | 1990-12-19 | 李青芳 | Floating separator for mixture of oil and water |
| US5730868A (en) * | 1996-05-23 | 1998-03-24 | Cordani; Peter J. | Reusable spill containment apparatus |
| CN2435387Y (en) * | 2000-07-05 | 2001-06-20 | 曾金华 | Oil-water separator for treatment and reuse of oil-containing sewage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101560412A (en) | 2009-10-21 |
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Owner name: NANTONG JUNYUAN CHEMICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG CHENGXIN Effective date: 20141020 |
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Effective date of registration: 20141020 Address after: 226300 West Ting Town, Tongzhou District, Jiangsu, Nantong Patentee after: NANTONG JUNYUAN TECHNOLOGY COMPANY LIMITED Address before: 277100 Zaozhuang Puli Chemical Co., Ltd., 18 Qingquan Road, Shizhong District, Zaozhuang, Shandong Patentee before: Wang Chengxin |
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Granted publication date: 20121128 Termination date: 20180525 |
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