CN101039746A - Method and system for on-line monitoring - Google Patents
Method and system for on-line monitoring Download PDFInfo
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- CN101039746A CN101039746A CNA2005800347514A CN200580034751A CN101039746A CN 101039746 A CN101039746 A CN 101039746A CN A2005800347514 A CNA2005800347514 A CN A2005800347514A CN 200580034751 A CN200580034751 A CN 200580034751A CN 101039746 A CN101039746 A CN 101039746A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00004—Scale aspects
- B01J2219/00006—Large-scale industrial plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00168—Controlling or regulating processes controlling the viscosity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00177—Controlling or regulating processes controlling the pH
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/2064—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a by-pass loop
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a method of determination of process parameters of a chemical process carried out in a chemical reactor (2). It comprises passing a sample of a process medium of said chemical process into a side-loop (20, 22, 24, 26, 34, 40, 42, 36) and isolating said side-loop from the process medium. The sample is circulated in said side-loop and tempered to a desired temperature. A measurement (38) of at least one process parameter is made on said sample at the desired temperature. The invention also relates to a system for performing the method, and the use thereof, e.g. controlled production of resins.
Description
Technical field
Relate generally to of the present invention is a kind of to be used for the system measuring the method for a plurality of parameters of chemical technology and be used for it, need carry out temperature adjustment and measure (tempered measurement) in described chemical technology on liquid medium.This system is particularly suitable for resin manufacture.
Background technology
Know the technological parameter of monitoring chemical production processes by automatic operation system in the prior art.
Some monitoring systems need manual intervention, comprise that manually sampling is further to handle in independent measurement or analytical equipment to liquid medium, and this may be in the laboratory away from the sampling position.These system's labour intensity are very big, and can't obtain the result rapidly from them usually.
Other system relates to system (in-line system) in the automatic non-temperature adjustment line, is included in pumping medium to be analyzed in the loop that field device is installed.With reactor in measure under the roughly the same temperature.The temperature of these system's medium is not regulated.Measure temperature and may sizable effect be arranged obtaining precise results.This is the situation when measuring viscosity for example, pH and many other technological parameters.The viscosity of the reaction medium of the solution of two kinds of reactants may be very similar under the reaction temperature that raises in the reaction vessel, but quite different under lower temperature.So the measurement under the lower temperature can provide more accurate result.An example of non-temperature adjustment technology is at US 6,635, and is open in 224, shows polymer monitoring device on a kind of line that is used for determining fast various polymer properties.
So, need the system more flexibly that can under the temperature different, accurately measure with temperature of reactor.Also expectation provide a kind of can be online in and measure on the line between the system switched fast.Also expectation provides a kind of system that can carry out steady and continuous monitoring.Also expectation provides a kind of obstruction of the equipment that prevents construction system and the system of reactive material loss.Also expectation provides a kind of system that can carry out a plurality of measurements to various technological parameters.Also expectation provide a kind of can be simultaneously to technological parameter carry out in the line and line on the monitoring system simply fast measured.The present invention is used to provide a kind of like this system.
Summary of the invention
Terminology used here " system (in-line system) in the line " refers to a kind of system, and wherein the sample stream of the processing medium of parameter to be determined is by bypass loop (side-loop), and measurement device is arranged in this bypass loop.So the temperature of sample stream is will be basically identical with temperature in the reactor, and does not regulate thus.
Terminology used here " inline system (on-line system) " refers to a kind of system, wherein in the closed loop that the sample stream of processing medium taking-up and feeding and reactor from reactor separates, in this closed loop, be provided for device, make it possible to thus under adjusting different and controlled temperature, measure with temperature of reactor to the medium temperature adjustment.Have been found that with the continuous loop that makes stream be circulated back to the opening of reactor continuously and compare that this closed loop provides much accurate measurement.
Terminology used here " processing medium " is included in reactant or other composition or material, for example solvent, the solution etc. of all participations that exist in the reactor that carries out chemical technology.
Terminology used here " sample " refers to take out from reactor is used to measure the part of the processing medium of technological parameter.
The method of determining technological parameter further limits in claim 1, is used for carrying out this definite system and limits in claim 6.The preferred embodiment of this method and system further limits in remaining dependent claims.
Now with reference to accompanying drawing the present invention is described in more detail.
Description of drawings
Fig. 1 is in the assemble line of automation according to an embodiment of the invention, temperature adjustment/schematic diagram of inline system;
Fig. 2 illustrates the viscosity temperature curve of two kinds of resins;
Fig. 3 a is the side view of the filter screen that uses in system according to the present invention;
Fig. 3 b is from the being seen view of the port of export of filter screen.
The specific embodiment
Fig. 1 illustrates the system that comprises batch reactor (reaction vessel) 2, carries out the manufacturing process of resin in this reaction vessel.The agitating device 4 that is driven by suitable motor is arranged in the reaction vessel.
In the bottom of reaction vessel 2, go out 18 and be positioned to link to each other with pipeline section 20.Valve V1 is installed in the pipeline section 20.Pipeline section 20 is divided into two paths respectively by pipeline section 22 and 24.Valve V3 is installed in pipeline section 22, and makes it complete by first loop that pipeline section 20 and 22 forms by another pipeline section 26, this pipeline section 26 is connected to the inlet 28 at place, reaction vessel 2 bottoms, the preferably not too close outlet 18 of this inlet.Valve V2 is installed in pipeline section 26.
Be provided for circulating sample so that the device of sample medium by system in pipeline section 24, preferably pump 30.Section 24 is divided into two paths by pipeline section 32 and 34.Valve V6 is set in section 32.Section 32,33,34 and 36 has been finished second loop.In section 36, the measuring box 38 that further describes below is set.The bypass loop that is formed by pipeline section 20,24,32,36 and 26 has formed " measuring loop in the line ".
Form the 3rd loop by pipeline section 20,24,34,40,42,36 and 26.Valve V4 and filter screen 44 are set in section 34, and their function and design will further specify below.In section 40, the sample temperature adjustment that is provided for passing through is to temperature required heat exchanger 46.At last, valve V5 is set in section 42.To be called as " measuring loop on the line " by pipeline section 22,24,34,40,42 and 36 isolation that form or the bypass loop of separating.
Cooling medium can be via suitable valve V7 from inlet tube 50 to outlet 52 by heat exchanger 46.
So, in system shown in Figure 1, being provided with two bypass loop, the both comprises common pump 30 and measuring box 38, i.e. loop on line inner ring road and the line.First loop of being made up of pipeline section 20,22 and 26 itself does not have function.
In the example that illustrates below, whole cyclic system has the capacity of about 40 liters of samples, and will with volume 50m
3Reactor use together.So sample constitutes about 0.08% of total reactor volume.The example that is used for the appropriate sensor of pH and viscosity measurement is respectively TBI-Bailey (pH) and BTG-K lle (viscosity).Other appropriate sensor can comprise for example commercial turbidity transducer, as Optek-Danulat from Essen, Germany, the twin beams light scattering sensor of GmbH, and the NIR spectrometer equipment that is used for collecting from processing medium spectroscopic data, for example from the Interactance Immersion System 6500 of FOSS.Heat-exchangers of the plate type is suitable for the processing medium temperature adjustment.Measuring box 38 is fit to comprise elongated tubular, and the temperature of sensor/a plurality of sensors with the measurement sample preferably is installed in this elongated tubular, and the cooling capacity (cooling capacity) of the heat exchanger of preferred monitoring adjusting specimen temperature.So can monitor the variation of cooling capacity, and can the corresponding cleaning of carrying out cooler.Preferably, at arbitrary end of box two sensors are installed.In the temperature adjustment process, Volume Changes will take place, cause pressure to change.This pressure/Volume Changes is preferably opened by maintaining valve VI during the temperature adjustment stage and is regulated.Compensator is made of the rubber element with necessary flexibility basically.These compensators are used for reducing the vibration of measuring box, and this is particularly conducive to viscosity measurement.When the temperature adjustment stage has finished and will begin process parameter measurement, can close be preferably pump be used to circulate the device of sample.This is favourable, because can keep measuring technological parameter for example viscosity, pH, electric conductivity, turbidity or spectroscopic data in static in pipeline section at sample.Flow through measurement device else if, then sample stream may interferometry and is made measurement accurate inadequately.This may be because the particle that dissolves in the sample stream.Stream also may cause turbulent flow, to the physical force of sensor.Can eliminate other outer pollutant of particle-removing, for example bubble, wood chip in some production line wholly or in part.Can also pass through further disclosed filter for installation here and eliminate particle etc.
To the present invention be described by example now.Suppose the application of for example making Lauxite.This technology can be according to following scheme:
1. in suitable reactors, load formalin (50%w/w) and use NaOH that pH is adjusted to 8.0-8.6.
2. load urea to formaldehyde/urea (F/U) mol ratio be 2.0-2.2 also control/adjusting pH to 8.0-8.6.With temperature be elevated to 80 ℃ and make the reaction carried out 10 minutes.
3. with formic acid pH is adjusted to 5.2-5.5, and temperature is elevated to 95 ℃ (exothermic reactions), make condensation reaction proceed to the viscosity of 400-500mPas.
4. stop condensation reaction by pH is increased to 8.0-8.6, and interpolation urea mol ratio F/U to the end is 1.0-1.2.Be evaporated to dried content 65-70wt%.
5. control pH (8.0-8.6) and emptying reactor.
From above this scheme as seen, (step 1) is carried out pH and is regulated when technology begins.During step 2 and step 3 beginning the time carry out pH once more and determine, measure viscosity after this.In order to obtain high-precision viscosity, should under 25 ℃, measure, the technological temperature during the condensation reaction in the reaction vessel is 90 ℃.In step 4, determine pH once more.So, the measurement of this application need under two temperature of separating, and the switching between high temperature and the low temperature should be preferably very fast.
Measure (step 1,2 and 4) for pH, use " line internal schema ".Thus, set up to limit in the line that forms and measure loop by opening valve V1, V2, V6 and shut-off valve V4, V5 and V3 by pipeline section 20,24,32,36 and 26.Pump 30 passes through the line inner ring road with processing medium from reactor 2 pumpings, and medium will pass through the measuring box 38 at pH meter place thus.The time that medium is pumped through box 38 is enough to make the pH reading to stablize.Then with of the indication of this reading as pH in the reactor.
PH meter (not shown equally) is so be positioned at measuring box 38.Sometimes, the glass material that comprises in the gage outfit of pH meter is subjected to the influence of the composition of the influence of process conditions, particularly processing medium, can compensate deviation by control software.
(step 3) is used " pattern on the line " for viscosity measurement.Thus, by shut-off valve V1, V2, V6 and open valve V3, V4 and V5 sets up to be limited on the line that forms by pipeline section 22,24,34,40,42 and 36 and measures loop.In this pattern, process medium sample pumps into the medium of being investigated to use the loop of above qualification formation from reactor and fills, and when being full of " loop on the line " of above qualification formation, shut-off valve V1 and V2.Make medium circulation pass through heat exchanger 46 then.By the suitable cooling medium of 50 heat exchanger supply that enters the mouth, arrive desired level up to temperature.Cooling medium stream can cut off with valve V7.The temperature sensor (not shown) also is positioned at measuring box 38.Certainly, if desired can continuous monitoring pH in the temperature adjustment process.
As mentioned above, temperature adjustment is for the viscosity measurement particular importance, but also very important when measuring other temperature sensitive parameter.At high temperature, the viscosity differences between the different material is very little, this from Fig. 2 of viscosity temperature curve that two kinds of different resins are shown clearly.Very clear, almost can ignore 100 ℃ of following difference, and under room temperature (about 20 ℃), difference is very big.So the measurement under the high temperature needs employed equipment extremely accurate.Even equipment is accurate, measure the influence that also can be subjected to various phenomenons, little solid particle that exists in for example vibrating, flowing or the like.These less relatively interference may still have very large influence to measurement.Had been found that before can measuring reliably on the temperature adjustment sample that can carry out precise monitoring and may only need 1-5 minute.In above process example, temperature adjustment/measurement on interior measurement of line and the line only is discussed.
But a plurality of other patterns can be operated and are used for various objectives.That is, when having carried out viscosity measurement, passed through a period of time inevitably, and processing medium can change.In order to obtain the currency of viscosity, being locked on the line of sealing the material in the loop must be with fresh process medium sample replacement.This will be called as the switching phase of function on the line.For this reason, shut-off valve V3 also opens valve V1 and V2, thus by enter the mouth 28 emptying loops and fresh sample is pumped into loop by reaction vessel outlet 18 of reaction vessel.When equaling to export the temperature at 18 places, the temperature at inlet 28 places finishes this switching phase.During this switching phase, heat exchanger is not preferably worked, and promptly stop valve V7 passes through heat exchanger to prevent cooling medium.At this moment, promptly when the entrance and exit temperature was equal to each other, system just was ready to pattern operation (temperature adjustment/measurement) on another line.
In certain embodiments, for example when using when having relatively slow equilibration time (for example pH meter), may expect to isolate sample stream and do not make its temperature adjustment in heat exchanger.This can and open valve V3 and V6 realizes by shut-off valve V1, V2, V4 and V5.So sample cycle is enough to make the sensor of being discussed to arrive poised state by the time of measuring box 38.This function will be called as " non-temperature adjustment function ".
Can allow sample cycle and not temperature adjustment in the pH meter balance time section being enough to make, all the other samples in the loop of closing are now simultaneously stagnated, but will continue cooling to a certain extent.So, when successfully having carried out the pH measurement of balance, restart the circulation in the temperature adjustment loop, the time that arrives desired temperature now will be quite short, thereby realize the time saving.Have been found that the switching from temperature adjustment function to non-temperature adjustment function can carry out in second about only 15-60, this by the reactor sample of temperature of reactor and temperature adjustment both down measurement parameters provide very fast and monitored efficiently.
And, certainly must operation batch between time cleaning system.There is multiple possible operator scheme to be used to clear up purpose.This cleaning does not form the present invention's self a part, and in fact should adapt to each independent technology setting, as common cleaning robot setting.
Because each loop that is used for the different measuring pattern forms the subloop of whole side-loop system, and because they are connected to each other by a plurality of valves, so can between each pattern, carry out practical instant switching simply by turning on and off suitable valve.As a result, the control that needs to monitor the chemical technology of a plurality of different parameters at short notice is greatly simplified and becomes more effective.
Frequently, processing medium by granule, fiber and other in the debris contamination that is not ground under the enough undersized situation by pump.Distance in the heat exchanger between each plate very crucial (under the situation of heat-exchangers of the plate type).Preferably, this distance is about 4mm usually, but certainly changes according to different manufacturers.
In order to prevent the space between each plate of this debris blocking, can filter screen be set in the heat exchanger upstream.This filter screen is dispensable for the function according to system of the present invention, and mainly is provided as security precaution.But, the adverse effect of the existence of above-mentioned object in may being flowed for the measurement of for example viscosity, filter screen may be favourable to successfully operation of the present invention still thus.
Also comprise the elongated box of making by the acid-proof steel 54 shown in Fig. 3 a and the 3b with 44 filter screens of totally representing, and the cross section with general rectangular.It is provided with the inlet 56 and the outlet 58, and be installed in the guiding heat exchanger 46 pipeline section 34 in (referring to Fig. 1).Another inlet that is used to clean 60 is arranged to, and enters box 54 from the top.Mesh structure 62 is set in sieve box 54.Net is angled layout in box, makes the liquid that enters will pass through mesh structure 62 from the below.Like this, any particle that will be stopped by mesh structure 62 etc. can be deposited on the top surface 64 of box 54, reduces the danger of stopping up net thus.Mesh structure 62 comprises the net 66 that is installed in the thin acid proof frame structure (not shown).In box 54, on each vertical wall 74 and 76 of box 54, be provided with two spines 70 and 72.Spine extends up to the top at the arrival end place of box along the diagonal angle from the bottom of the box of the port of export, these paired spines form corresponding guider thus, and the assembly of net and framework inserts in the described guider by the opening 78 (being shown in broken lines) at the port of export place of box 54.
This opening is covered by cover 79, and this cover can be fixed in the mode of anti-leak by suitable fastening and suitable washer arrangement.So, needn't whole replacing filter structure, it is just passable to change mesh structure 62, and such operation is easy to.
In the above description, described the present invention by example, wherein pH and viscosity are the parameters of being paid close attention among others.Those skilled in the art will recognize that under the situation of the inventive concept that does not depart from the claims qualification, principle of the present invention also can be used for other parameter of following such any technology, need control parameter and need switching fast between the measurement of being carried out in described technology under the temperature adjustment state.
Claims (12)
1. method that is used for determining at least one technological parameter of the chemical technology of carrying out at reactor (2) comprises:
(a) make the sample of the processing medium of described chemical technology feed bypass loop (20,22,24,26,34,40,42,36) and the residue processing medium in described sample and the described reactor is isolated;
(b) described sample being circulated in described bypass loop also arrives described sample temperature adjustment temperature required therein;
(c) at described temperature required time at least one technological parameter of described sample is measured.
2. method according to claim 1 wherein, realizes temperature adjustment by operation heat exchanger in described bypass loop.
3. method according to claim 1 and 2, comprise make described sample a part in the subloop of described bypass loop with remaining sample isolation cycle, described remaining sample remains on dead state simultaneously, thereby in described subloop, do not carry out temperature adjustment, and measure the one or more parameters in the sample of described subloop.
4. according to each described method among the claim 1-3, wherein, the volume of described sample be processing medium in the described reactor volume 1%.
5. according to the described method of arbitrary aforementioned claim, also comprise:
(d) processing medium is being circulated under the situation of not temperature adjustment in the sealing subloop in described bypass loop;
(e) in described subloop, under temperature of reactor, measure alternatively.
6. a system that is used for measuring the technological parameter of the chemical technology of carrying out at reactor (2) comprises: outlet (18) and enter the mouth (28); Via exporting the bypass loop (20,22,24,26,34,40,42,36) that (18) and inlet (28) are connected to described reactor (2), make the sample of processing medium lead to described bypass loop and get back to described reactor from described reactor (2); Be used to make the device (30) of described sample cycle; The valve that is used for the described sample of described bypass loop and the residue processing medium in the described reactor (2) are isolated (V1, V2, V4, V5); Be used for the described sample temperature adjustment of described bypass loop to temperature required device (46,50,52, V7); And be used in described bypass loop at the described temperature required device (38) of measuring at least one technological parameter down.
7. system according to claim 6, wherein, measuring box (38) is arranged in the described bypass loop, is provided with at least one sensor and is used to carry out required measurement in described measuring box.
8. according to claim 6 or 7 described systems, wherein, described bypass loop comprises the subloop (22,24,32,36) that does not have register, described subloop can with described bypass loop isolation work.
9. system according to claim 8, wherein, described measuring box (38) is arranged to can use during with the work of described subloop in system.
10. according to each described system among the claim 6-9, also be included in the filter net device (44) that is arranged on described register (46) upstream in the described bypass loop, described filter screen comprises: housing (54), described housing (54) are provided with inlet (56) and outlet (58) and are installed in the pipeline section (34); Mesh structure (62) comprises that net (66) and supporting are arranged on the framework of the described net in the housing (54).
11. system according to claim 10, wherein, housing (54) is at the corresponding vertical wall (74 of housing (54), 76) be provided with two spines (70,72), described spine (70,72) extends up to the top of the arrival end of box along the diagonal angle from the bottom of box at port of export place, described paired spine forms corresponding guider, and the opening (78) that the assembly of net and framework can pass through the port of export place of housing (54) inserts in the described guider.
12. use the controlled production that is used for resin according to each described system among the claim 6-11.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04445109 | 2004-10-12 | ||
| EP04445109.4 | 2004-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101039746A true CN101039746A (en) | 2007-09-19 |
Family
ID=34933002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800347514A Pending CN101039746A (en) | 2004-10-12 | 2005-09-15 | Method and system for on-line monitoring |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1802391A1 (en) |
| CN (1) | CN101039746A (en) |
| AR (1) | AR054687A1 (en) |
| BR (1) | BRPI0517544A (en) |
| CA (1) | CA2581850A1 (en) |
| MY (1) | MY138506A (en) |
| NO (1) | NO20072403L (en) |
| PE (1) | PE20060808A1 (en) |
| RU (1) | RU2372981C2 (en) |
| UA (1) | UA83596C2 (en) |
| WO (1) | WO2006041372A1 (en) |
| ZA (1) | ZA200702923B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100174129A1 (en) * | 2006-12-29 | 2010-07-08 | Bauman Richard F | High throughput propylene from methanol catalytic process development method |
| WO2008080362A1 (en) * | 2006-12-29 | 2008-07-10 | Accelergy Shanghai R & D Center Co., Ltd. | High throughput clean feed hydroprocessing development method |
| RU2700331C1 (en) * | 2018-10-19 | 2019-09-16 | Дарья Сергеевна Нехорошева | Ir-spectrometric system for vapor-phase monitoring of chemical composition of liquid hydrocarbon mixes in a tank and method of performing spectrometric measurements with its use |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2245245A5 (en) * | 1973-09-21 | 1975-04-18 | Erap Elf Entr Rech Activ Petro | |
| DE3480607D1 (en) * | 1984-07-17 | 1990-01-04 | Rhe Haendel Engineering Gmbh | METHOD FOR VISCOSITY MEASUREMENT OF RESIN AND DEVICE FOR IMPLEMENTING THE METHOD. |
| GB2170909B (en) * | 1985-02-08 | 1988-07-13 | Spectra Tek Uk Limited | Apparatus and method for monitoring crude oil |
| US5944991A (en) * | 1997-11-21 | 1999-08-31 | Dresser Industries, Inc. | Pipeline strainer |
| US6635224B1 (en) * | 1998-10-30 | 2003-10-21 | General Electric Company | Online monitor for polymer processes |
-
2005
- 2005-09-15 CA CA002581850A patent/CA2581850A1/en not_active Abandoned
- 2005-09-15 BR BRPI0517544-5A patent/BRPI0517544A/en not_active IP Right Cessation
- 2005-09-15 UA UAA200705206A patent/UA83596C2/en unknown
- 2005-09-15 ZA ZA200702923A patent/ZA200702923B/en unknown
- 2005-09-15 WO PCT/SE2005/001338 patent/WO2006041372A1/en active Application Filing
- 2005-09-15 EP EP05784657A patent/EP1802391A1/en not_active Withdrawn
- 2005-09-15 CN CNA2005800347514A patent/CN101039746A/en active Pending
- 2005-09-15 RU RU2007117709/15A patent/RU2372981C2/en not_active IP Right Cessation
- 2005-09-29 AR ARP050104110A patent/AR054687A1/en unknown
- 2005-10-06 PE PE2005001181A patent/PE20060808A1/en not_active Application Discontinuation
- 2005-10-11 MY MYPI20054769A patent/MY138506A/en unknown
-
2007
- 2007-05-11 NO NO20072403A patent/NO20072403L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2372981C2 (en) | 2009-11-20 |
| CA2581850A1 (en) | 2006-04-20 |
| UA83596C2 (en) | 2008-07-25 |
| AR054687A1 (en) | 2007-07-11 |
| NO20072403L (en) | 2007-05-11 |
| WO2006041372A1 (en) | 2006-04-20 |
| ZA200702923B (en) | 2008-09-25 |
| BRPI0517544A (en) | 2008-10-14 |
| RU2007117709A (en) | 2008-11-20 |
| EP1802391A1 (en) | 2007-07-04 |
| PE20060808A1 (en) | 2006-10-23 |
| MY138506A (en) | 2009-06-30 |
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