EP0759167A1 - Procede et dispositif permettant de detecter des polluants dans un carburant liquide - Google Patents

Procede et dispositif permettant de detecter des polluants dans un carburant liquide

Info

Publication number
EP0759167A1
EP0759167A1 EP95917274A EP95917274A EP0759167A1 EP 0759167 A1 EP0759167 A1 EP 0759167A1 EP 95917274 A EP95917274 A EP 95917274A EP 95917274 A EP95917274 A EP 95917274A EP 0759167 A1 EP0759167 A1 EP 0759167A1
Authority
EP
European Patent Office
Prior art keywords
fuel
container
line
diluent
sample
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95917274A
Other languages
German (de)
English (en)
Inventor
Erwin Schieder
Michael Rziha
Wilhelm BLÖDORN
Matthias Backhaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Spectro Analytical Instruments GmbH and Co KG
Spectro Analytical Instruments Inc
Original Assignee
Siemens AG
Spectro Analytical Instruments GmbH and Co KG
Spectro Analytical Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Spectro Analytical Instruments GmbH and Co KG, Spectro Analytical Instruments Inc filed Critical Siemens AG
Publication of EP0759167A1 publication Critical patent/EP0759167A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2835—Specific substances contained in the oils or fuels
    • G01N33/2864—Lead content
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2835—Specific substances contained in the oils or fuels

Definitions

  • the invention relates to a device and a method for determining pollutants in a liquid fuel that flows in a fuel line.
  • Plants operated with liquid fuels are generally supplied with the required fuels via lines. This applies in particular to gas turbines to which, for example, highly viscous heavy oil is fed.
  • the fuel that is available can contain impurities. For example, sodium, potassium or also lead and magnesium compounds can be present in the fuel. So that the effort for possible cleaning of the fuel or for the provision of less contaminated fuel remains low, the contamination of the fuel is determined at intervals. Appropriate measures, such as e.g. the use of a cleaner fuel.
  • a suitable measuring method for the detection of pollutants in a liquid fuel is from the published lecture "Comparison of Spectrometric Techniques for the Analysis of Liquid Gas Turbine Fuels", presented at "International Gas Turbine and Aeroengine Congress and Exposition", Cologne, 1. until June 4, 1992.
  • This method provides for spectrometric analysis of gas turbine fuels to identify contaminants. For this purpose, individual fuel samples are obtained, which are then evaluated in the laboratory.
  • Such a measuring method is time-consuming and therefore only allows sampling in relatively large quantities time intervals. An increase in contamination cannot be detected between two sampling.
  • the invention was based on the object of specifying a device and a method for determining pollutants in a liquid fuel which flows in a fuel line and which almost enables online analysis.
  • a closable feed line emanates from the fuel line, which leads into a container with a known volume, that the container is provided with a heating device and that the container is connected by a closable connecting line is connected to an analyzer.
  • the container which has a known volume, is completely filled with fuel. Then the supply line is closed.
  • the heating device ensures that each fuel sample has the same temperature. With the pressure remaining the same, it is then ensured that not only the sample volumes but also the sample quantities are the same each time a sample is taken. Only in this way is it advantageously possible that not only the pollutants per unit volume, but also per
  • Unit of measure can be determined.
  • the advantage is also obtained that the volume and the amount of a sample of the fuel are always known exactly. This volume or quantity is then passed from the container to the analyzer by opening the connecting line, where the proportion of impurities is determined in a known manner.
  • the viscosity of the fuel decreases and its flow properties are improved, so that the fuel reaches the analyzer in a short time.
  • the pollutants of a sample be detected very quickly. Another sample can then be examined after a very short time.
  • the container can be refilled from the fuel line immediately and a new sample can be analyzed.
  • a mixing chamber which is connected to a storage container for a diluent, can be integrated into the connecting line between the container and the analyzer.
  • the fuel sample is mixed with the diluent in this mixing chamber.
  • a lockable diluent line starts from the storage container for the diluent and opens into the container with a known volume.
  • a pump is assigned to this diluent line.
  • the connecting line from the container to the analyzer is opened.
  • the diluent line is opened and the pump arranged there is started up.
  • the diluent is first pumped into the container and, together with the fuel sample initially contained in the container, leaves the container via the connecting line. Because the diluent has already reached the container, the fluidity of the fuel is further improved there.
  • the good flow properties of the dilute th fuel affects the entire connection line. If a mixing chamber is also integrated in the connecting line, very good flow properties result which ensure a reliable analysis.
  • a waste container for holding fuel that is not required is connected to the container.
  • This has the advantage that when the container is filled from the fuel line, the container can be loaded until fuel overflows into the waste container. This ensures optimal utilization of the known volume of the container. Since the volume of the fuel sample must be known as precisely as possible in the later analysis of the fuel, an optimal filling of the container is essential for the measurement result.
  • the diluted sample that is no longer required can be released by the analysis device.
  • the object of specifying a suitable method is achieved according to the invention in that a sample of the fuel which has a constant volume is measured at an elevated constant temperature and in that this sample is analyzed.
  • the method according to the invention can advantageously be carried out quickly because the fuel has improved flow properties due to its heating.
  • the pollutants per unit quantity can be determined in the fuel.
  • the advantage is achieved that the pollutant content of a fuel flowing in a fuel line can be determined at very short intervals. This is also possible if the fuel is a highly viscous heavy oil, for example a gas turbine fuel.
  • the drawing shows a device for determining pollutants in a liquid fuel according to the invention.
  • a fuel for example a highly viscous heavy oil flows in a fuel line 1, which can be the supply line for a gas turbine.
  • the pressure in the fuel line 1 can be 30 bar (3.10 6 Pa) and the temperature of the fuel can be 130 ° C.
  • the fuel line 1 starts with a closable supply line 2, which opens into a container 3 with a known volume.
  • This container 3 is connected to an analysis device 5 via a closable connecting line 4.
  • a spectrometric analysis of the fuel is carried out in the analysis device 5.
  • the connecting line 4 is first closed by a fitting 4a and the feed line 2 is opened by the fitting 2a.
  • fuel flows from the fuel line 1 through the feed line 2 and fills the container 3.
  • the fitting 2a is then closed and the fitting 4a is opened.
  • the known volume of the fuel which is located in the container 3, reaches the analysis device 5 from there.
  • the pollutant content is determined there. Since the volume of the container 3 is known exactly, the
  • Pollutant concentration can be determined in a unit volume of fuel. This value gives an indication of whether the fuel flowing in the fuel line 1 is further suitable for its intended purpose or whether another fuel must be used.
  • a diluent is added to the fuel. This diluent is stored in a reservoir 6. This reservoir 6 is connected to the container 3 via a closable diluent line 7, which contains a pump 8. While the container 3 is being filled with a fuel sample, the fitting 2a is open and the fitting 4a and a fitting 7a in the diluent line 7 are closed. After the container 3 is filled, the fitting 2a is closed and the fittings 4a and 7a are opened. In addition, the pump 8 is started up. As a result, the diluent reaches the container 3 from the storage container 6, and the fuel in the container 3, by mixing with the diluent, reaches the analysis device 5 via the connecting line 4.
  • a mixing chamber 9 can be integrated into the connecting line 4. There a good mixing of the fuel with the diluent is achieved.
  • the diluent which is not shown, can also be fed directly into the mixing chamber 9.
  • a pump can be provided there for transporting the fuel volume through the connecting line 4.
  • the container 3 is equipped with a heating device 10. This ensures that the temperature of the container 3 and thus the fuel volume in the container 3 is the same for each sampling. Consequently, not only are the same sample volumes obtained, but also the same sample amounts, provided that the pressure in the container 3 remains the same. This can be ensured that the container 3 is open to the environment, so that the ambient pressure (external air pressure) prevails in the container 3. In addition, the flow properties of the fuel in the container 3 are improved by heating the container 3. In addition, the container 3 can be arranged in a heat-insulated housing 11.
  • an overflow line 12 extends from the container 3 and opens into a waste container 13. If too much fuel reaches the container 3 through the feed line 2, the excess fuel flows into the waste container 13.
  • the analysis device 5 known as such can be connected via a multi-way valve 14 to the connecting line 4 and, for comparative measurements, to storage containers 15, 16 for standard substances and also to the storage container 6 for the diluent.
  • the analysis device 5 has a derivation 17.
  • fuel samples from the fuel line 1 can be analyzed at short intervals.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

L'invention concerne un procédé et un dispositif qui permettent de détecter des polluants dans un carburant liquide qui circule dans une conduite de carburant (1). Il est prévu qu'une conduite d'amenée (2) pouvant être fermée et débouchant dans un réservoir (3) à volume connu, parte de la conduite de carburant (1). Ce réservoir (3) est pourvu d'un dispositif de chauffage (10) et est relié à un appareil d'analyse (5) par l'intermédiaire d'une conduite de liaison (4) pouvant être fermée. Un échantillon de carburant, au volume constant, est mesuré à température constante élevée, puis analysé.
EP95917274A 1994-05-06 1995-05-05 Procede et dispositif permettant de detecter des polluants dans un carburant liquide Withdrawn EP0759167A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19944416203 DE4416203C2 (de) 1994-05-06 1994-05-06 Einrichtung zum Bestimmen von Schadstoffen in einem flüssigen Brennstoff
DE4416203 1994-05-06
PCT/DE1995/000591 WO1995030898A1 (fr) 1994-05-06 1995-05-05 Procede et dispositif permettant de detecter des polluants dans un carburant liquide

Publications (1)

Publication Number Publication Date
EP0759167A1 true EP0759167A1 (fr) 1997-02-26

Family

ID=6517589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917274A Withdrawn EP0759167A1 (fr) 1994-05-06 1995-05-05 Procede et dispositif permettant de detecter des polluants dans un carburant liquide

Country Status (4)

Country Link
EP (1) EP0759167A1 (fr)
JP (1) JPH09512911A (fr)
DE (1) DE4416203C2 (fr)
WO (1) WO1995030898A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8423877B2 (en) 2009-12-01 2013-04-16 Canon Kabushiki Kaisha Method for determining a copy to be decoded and an associated erasures vector, corresponding storage means and receiver device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261691B (de) * 1961-07-21 1968-02-22 Universal Oil Prod Co Verfahren und Anordnung zur Ermittlung der Konzentration von lonen bildenden Bestandteilen in unpolaren Traegermedien
JPS61116657A (ja) * 1984-11-12 1986-06-04 Showa Electric Wire & Cable Co Ltd カ−ボンブラツクの分散性の評価方法
DE3621514A1 (de) * 1986-06-27 1988-01-14 Peter Hofmann Verfahren zur ortung und messung von fremdpartikeln in rohoel waehrend der foerderung desselben und vorrichtung zur durchfuehrung des verfahrens
US5260220A (en) * 1991-11-19 1993-11-09 Arco Chemical Technology, L.P. Method and apparatus for monitoring impurities in a liquified hydrocarbon stream
NO176156C (no) * 1992-06-22 1995-02-08 Norsk Hydro As Fremgangsmåte for bestemmelse av voksutfellingstemperatur og megnde voks i råolje e.l.
US5397708A (en) * 1993-05-13 1995-03-14 Nalco Chemical Company Method for detection of sulfides

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9530898A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8423877B2 (en) 2009-12-01 2013-04-16 Canon Kabushiki Kaisha Method for determining a copy to be decoded and an associated erasures vector, corresponding storage means and receiver device

Also Published As

Publication number Publication date
WO1995030898A1 (fr) 1995-11-16
JPH09512911A (ja) 1997-12-22
DE4416203C2 (de) 1996-03-14
DE4416203A1 (de) 1995-11-23

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