WO2013002713A1 - Device and method for indication of sulphur content in a fuel - Google Patents

Device and method for indication of sulphur content in a fuel Download PDF

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Publication number
WO2013002713A1
WO2013002713A1 PCT/SE2012/050710 SE2012050710W WO2013002713A1 WO 2013002713 A1 WO2013002713 A1 WO 2013002713A1 SE 2012050710 W SE2012050710 W SE 2012050710W WO 2013002713 A1 WO2013002713 A1 WO 2013002713A1
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WO
WIPO (PCT)
Prior art keywords
fuel
sulphur content
indicating unit
carrier element
sulphur
Prior art date
Application number
PCT/SE2012/050710
Other languages
French (fr)
Inventor
Magnus Mackaldener
Jakob Hansson
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Publication of WO2013002713A1 publication Critical patent/WO2013002713A1/en

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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
    • G01N33/287—Sulfur content
    • 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
    • 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
    • G01N33/22—Fuels; Explosives
    • 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
    • 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
    • G01N2001/2071—Removable sample bottle

Definitions

  • the present invention relates to a device and a method for indication of sulphur content in a fuel as described in the preambles of the independent claims.
  • EU6 Within the European Union, a new standard, EU6, comes into force in 2014 for permissible amounts of emissions in exhaust gases inter alia from vehicles powered by diesel engines.
  • Known exhaust cleaning methods required for complying with EU6 are sensitive to high sulphur contents in the fuel.
  • a sulphur content of more than 10 ppm in the fuel entails risk of poisoning of catalysts, leading to defective emission reduction.
  • some vehicle manufacturers will specify a maximum permissible sulphur content for the fuel, e.g. less than 10 ppm. It is difficult, however, to establish and prove that fuel with which a vehicle is refuelled has a sulphur content of more than 10 ppm.
  • ⁇ reducers are often used in the exhaust flow from combustion engines, e.g. in vehicles.
  • the effectiveness of such ⁇ reducers decreases in the presence of compounds which contain sulphur.
  • Such compounds containing sulphur e.g. mercaptans, thiophenes, thioethers, thioesters, disulphides
  • ⁇ reducers affected suffer reduced effectiveness. A result of this is that the presence of sulphur-containing compounds in the fuel may have an adverse effect on exhaust emissions, particularly as regards emissions of nitrogen oxides.
  • US-2002/0079236 refers to a sensor for measuring the concentration of sulphur compounds in a liquid.
  • the sensor comprises two electrodes, one of them an active electrode in contact with the liquid which is to be measured, and the other a reference electrode insulated from the liquid. A voltage is generated between the electrodes, depending on the concentration of sulphur compounds in the liquid, which can thus be determined.
  • US-2009/0317299 refers to an optical sensor for determining the sulphur content in the fuel, which is done by illuminating the fuel with a suitable wavelength spectrum and detecting reflected light which is then analysed to obtain a detection signal which indicates the sulphur content.
  • a detachable passive indicating unit which absorbs and stores sulphur in proportion to the maximum sulphur content to which it is exposed makes it possible to subsequently analyse this unit and thereby ascertain the highest sulphur content which the fuel contained.
  • the idea is that if it is suspected that the exhaust cleaning has been put out of action as a result of high sulphur content in the fuel, it is possible to unscrew the bottom plug, replace the indicating unit by another and send the removed unit for analysis and determination of the maximum sulphur content to which it has been exposed.
  • the indicating unit which registers and stores the maximum sulphur content to which it is exposed may of course also be situated elsewhere in the tank or the fuel system than the bottom plug. Further characteristics and advantages of the invention are indicated by the examples described below.
  • FIG. 1 is a schematic sideview of a carrier element provided with an indicating unit
  • Fig. 2 is a schematic view from above of a first embodiment of an indicating unit
  • Fig. 3 is a cross-sectional view of an indicating unit according to a first embodiment.
  • Fig. 4 is a cross-sectional view of an indicating unit according to a second embodiment.
  • Figure 1 depicts a device 2 for indication of sulphur content in a fuel for a combustion engine intended to power a vehicle.
  • the device comprises a carrier 4 provided with a carrier element 6 and a passive indicating unit 8 placed in the carrier element 6.
  • the carrier element is intended to be fitted detachably in a fuel tank, to which end it is adapted to being so arranged that the indicating unit is in contact with the fuel contained in the tank for which the sulphur content is to be indicated.
  • the carrier 4 is a bottom plug for fitting in a fuel tank connected to the engine, and the indicating unit is so arranged as to be in contact with the fuel in the tank when the bottom plug is fitted.
  • the carrier 4 has in such an embodiment a screw thread 41 and is provided with a key grip 42 to facilitate both fitting and removal. It is also possible for the device to be situated at some other location where it is in contact with the fuel, e.g. in a fuel pipe or fuel hose which conveys the fuel from the tank to the engine.
  • the carrier 4 may then comprise for example a network structure which is situated in the fuel flow and which makes it possible for the fuel to come into contact with the indicating unit.
  • the indicating unit 8 is adapted to detecting a sulphur content which exceeds one or more predetermined levels. According to an embodiment, one of these levels is a sulphur content of 10 ppm. Other levels might be 50 ppm and 100 ppm. To be able to determine whether the fuel's sulphur content has exceeded any of these levels, the indicating unit 8 has to be removed and analysed. This can only be done when the device has been removed, which in the embodiment in which the carrier is a bottom plug for the fuel tank means the bottom plug being unscrewed. The indicating unit can then be separated from the carrier element and be analysed to obtain an indication of whether the sulphur content of the fuel monitored exceeds said one or more predetermined levels.
  • the indicating unit 8' comprises one or more capsules 10. Three capsules are depicted in Figure 2.
  • Each capsule has a cavity closed by a semipermeable (osmotic) membrane (Ml, M2) through which sulphur compounds can enter the cavity, and each capsule contains a liquid with a predetermined sulphur content (CI, C2).
  • CI predetermined sulphur content
  • two capsules 10 are situated in the indicating unit 8' .
  • CI predetermined sulphur content
  • the left capsule there is a liquid with a sulphur content CI which may for example be 10 ppm, with a membrane Ml adapted to letting sulphur compounds into the cavity but preventing their coming out. If the sulphur content in the fuel outside the indicating unit is greater than CI (10 ppm), equalisation of the concentrations will take place according to known osmotic principles, causing the sulphur content in the capsule to increase.
  • the capsules CI, C2 each accommodate one or more millilitres of liquid and take the form of recesses in the indicating unit 8' which are then covered by the semipermeable membranes Ml, M2.
  • the indicating unit 8" takes instead the form of a number of layers, e.g. three layers LI, L2, L3 with different sulphur absorption capacities.
  • layer LI has the lowest absorption capacity and if the fuel has a sulphur content SI which exceeds this capacity the layer will so indicate in a way similar to that described above.
  • Layer L2 has a greater absorption capacity than LI and can therefore absorb a sulphur content S2 which exceeds SI .
  • Layer L3 has a greater absorption capacity than L2 and can therefore absorb a sulphur content S3 which exceeds S2.
  • the indicating unit comprises a single layer with a predetermined sulphur absorption capacity.
  • the indicating unit 8 is situated detachably in the carrier element 6, allowing it to be taken away from the carrier element in order to be analysed.
  • the analysis involves analysing the sulphur content in each capsule/layer and deciding whether it has increased to more than the original content. If such is the case, it indicates that sulphur has been supplied from the fuel and that the sulphur content in the fuel has exceeded the predetermined level for the respective capsule/layer.
  • a replacement indicating unit may be fitted to the carrier element for further and continuing indications of the sulphur content in the fuel with which the vehicle is subsequently refuelled.
  • the invention relates also to a method for indication of sulphur content in a fuel intended for a combustion engine, by means of a device comprising a carrier 4 with a carrier element 6 as described above.
  • a passive indicating unit 8, 8', 8" is placed in said carrier element 6.
  • the carrier element has also to be so situated that the indicating unit 8 is in contact with the fuel whose sulphur content is to be indicated.
  • the indicating unit has to be adapted to monitoring a sulphur content which exceeds one or more predetermined levels. To obtain an indication of whether the fuel monitored has a sulphur content which exceeds said one or more predetermined levels, the indicating unit has to be removed for analysis.
  • the present invention is not restricted to the preferred embodiments described above, since sundry alternatives, modifications and equivalents may be used.
  • the embodiments exemplified above are therefore not to be regarded as limiting the invention's protective scope which is defined by the attached claims.
  • the carrier may for example be in some way sealed with a view to preventing and/or revealing any unauthorised removal and replacement of the indicating unit.
  • the description is largely concerned with what applies in the case of diesel vehicles but may with advantage be employed in all applications which involve diesel-powered combustion engines, e.g. engines for marine or industrial use.
  • the invention may also be employed for other types of engines and fuels where similar needs occur.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

A device and method for indication of sulphur content in a fuel for a combustion engine, comprising a carrier (4) with a carrier element (6). The device comprises a passive indicating unit (8) situated in said carrier element (6), the carrier element being adapted to being so situated that the indicating unit is in contact with the fuel whose sulphur content is to be indicated. The indicating unit (8) is adapted to monitoring a sulphur content which exceeds one or more predetermined levels, the indicating unit being adapted to being analysed when it has been removed, in order to obtain an indication of whether the fuel has a sulphur content which exceeds said one or more predetermined levels.

Description

Device and method for indication of sulphur content in a fuel
Field of the invention
The present invention relates to a device and a method for indication of sulphur content in a fuel as described in the preambles of the independent claims.
Background to the invention
Within the European Union, a new standard, EU6, comes into force in 2014 for permissible amounts of emissions in exhaust gases inter alia from vehicles powered by diesel engines. Known exhaust cleaning methods required for complying with EU6 are sensitive to high sulphur contents in the fuel. A sulphur content of more than 10 ppm in the fuel entails risk of poisoning of catalysts, leading to defective emission reduction. To reduce the risk and ensure that the standard is complied with, some vehicle manufacturers will specify a maximum permissible sulphur content for the fuel, e.g. less than 10 ppm. It is difficult, however, to establish and prove that fuel with which a vehicle is refuelled has a sulphur content of more than 10 ppm.
To reduce emissions of nitrogen oxides (ΝΟχ), so-called ΝΟχ reducers are often used in the exhaust flow from combustion engines, e.g. in vehicles. The effectiveness of such ΝΟχ reducers decreases in the presence of compounds which contain sulphur. Such compounds containing sulphur (e.g. mercaptans, thiophenes, thioethers, thioesters, disulphides) and, in particular, aromatic compounds which contain sulphur "poison" or react irreversibly with the catalyst for the ΝΟχ reducer. ΝΟχ reducers affected suffer reduced effectiveness. A result of this is that the presence of sulphur-containing compounds in the fuel may have an adverse effect on exhaust emissions, particularly as regards emissions of nitrogen oxides.
US-2002/0079236 refers to a sensor for measuring the concentration of sulphur compounds in a liquid. The sensor comprises two electrodes, one of them an active electrode in contact with the liquid which is to be measured, and the other a reference electrode insulated from the liquid. A voltage is generated between the electrodes, depending on the concentration of sulphur compounds in the liquid, which can thus be determined.
US-2009/0317299 refers to an optical sensor for determining the sulphur content in the fuel, which is done by illuminating the fuel with a suitable wavelength spectrum and detecting reflected light which is then analysed to obtain a detection signal which indicates the sulphur content.
These two known sensors may be regarded as active in that they require some form of power supply during detection or during signal processing. The measurements described in these two published patent applications provide a direct measured result, i.e. a measured value which reflects the respective sulphur content.
There is a need to have information about the maximum sulphur content in the fuel to which the vehicle has been exposed, since a fuel with too much sulphur content may well impair catalyst function and make it impossible to comply with the emission requirements for the exhaust gases. Cases where the catalyst function is impaired such that the emission requirements are not complied with despite the vehicle not having been refuelled with fuel which has a sulphur content of more than 10 ppm may in the worse case mean the vehicle manufacturer having to recall and rectify a large number of vehicles, potentially at very great cost. If however it can be shown that the instructions were not followed and that the vehicle was refuelled with fuel with a sulphur content of more than, for example, 10 ppm, no such campaign arises.
There is therefore a desire for a simple way of obtaining an indication that a vehicle has been refuelled with fuel which exceeds predetermined sulphur content levels. A further desire is that this indication be obtainable in an easy way which involves no electrical installation and no maintenance and is therefore not expensive. Summary of the invention
The above objects are achieved with the invention defined by the independent claims. Preferred embodiments are defined by the dependent claims.
Incorporating in, for example, the fuel tank bottom plug a detachable passive indicating unit which absorbs and stores sulphur in proportion to the maximum sulphur content to which it is exposed makes it possible to subsequently analyse this unit and thereby ascertain the highest sulphur content which the fuel contained. The idea is that if it is suspected that the exhaust cleaning has been put out of action as a result of high sulphur content in the fuel, it is possible to unscrew the bottom plug, replace the indicating unit by another and send the removed unit for analysis and determination of the maximum sulphur content to which it has been exposed.
The indicating unit which registers and stores the maximum sulphur content to which it is exposed may of course also be situated elsewhere in the tank or the fuel system than the bottom plug. Further characteristics and advantages of the invention are indicated by the examples described below.
Brief description of drawings Fig. 1 is a schematic sideview of a carrier element provided with an indicating unit
according to the invention.
Fig. 2 is a schematic view from above of a first embodiment of an indicating unit
according to the invention.
Fig. 3 is a cross-sectional view of an indicating unit according to a first embodiment. Fig. 4 is a cross-sectional view of an indicating unit according to a second embodiment. Detailed description of preferred embodiments of the invention
Figure 1 depicts a device 2 for indication of sulphur content in a fuel for a combustion engine intended to power a vehicle. The device comprises a carrier 4 provided with a carrier element 6 and a passive indicating unit 8 placed in the carrier element 6. The carrier element is intended to be fitted detachably in a fuel tank, to which end it is adapted to being so arranged that the indicating unit is in contact with the fuel contained in the tank for which the sulphur content is to be indicated. According to an embodiment, the carrier 4 is a bottom plug for fitting in a fuel tank connected to the engine, and the indicating unit is so arranged as to be in contact with the fuel in the tank when the bottom plug is fitted. The carrier 4 has in such an embodiment a screw thread 41 and is provided with a key grip 42 to facilitate both fitting and removal. It is also possible for the device to be situated at some other location where it is in contact with the fuel, e.g. in a fuel pipe or fuel hose which conveys the fuel from the tank to the engine. The carrier 4 may then comprise for example a network structure which is situated in the fuel flow and which makes it possible for the fuel to come into contact with the indicating unit.
The indicating unit 8 is adapted to detecting a sulphur content which exceeds one or more predetermined levels. According to an embodiment, one of these levels is a sulphur content of 10 ppm. Other levels might be 50 ppm and 100 ppm. To be able to determine whether the fuel's sulphur content has exceeded any of these levels, the indicating unit 8 has to be removed and analysed. This can only be done when the device has been removed, which in the embodiment in which the carrier is a bottom plug for the fuel tank means the bottom plug being unscrewed. The indicating unit can then be separated from the carrier element and be analysed to obtain an indication of whether the sulphur content of the fuel monitored exceeds said one or more predetermined levels. In a first embodiment schematically depicted in Figures 2 and 3, the indicating unit 8' comprises one or more capsules 10. Three capsules are depicted in Figure 2.
Each capsule has a cavity closed by a semipermeable (osmotic) membrane (Ml, M2) through which sulphur compounds can enter the cavity, and each capsule contains a liquid with a predetermined sulphur content (CI, C2). In the example in Figure 3 two capsules 10 are situated in the indicating unit 8' . In the left capsule there is a liquid with a sulphur content CI which may for example be 10 ppm, with a membrane Ml adapted to letting sulphur compounds into the cavity but preventing their coming out. If the sulphur content in the fuel outside the indicating unit is greater than CI (10 ppm), equalisation of the concentrations will take place according to known osmotic principles, causing the sulphur content in the capsule to increase.
If there then is in the right capsule a liquid with a higher concentration C2, e.g. 50 ppm, with a membrane M2 adapted to letting sulphur compounds in, and the concentration remains unchanged in the right capsule, the analysis may lead to the conclusion that the fuel had a sulphur content which exceeded CI but not C2.
The capsules CI, C2 each accommodate one or more millilitres of liquid and take the form of recesses in the indicating unit 8' which are then covered by the semipermeable membranes Ml, M2.
In another embodiment illustrated by Figure 4, the indicating unit 8" takes instead the form of a number of layers, e.g. three layers LI, L2, L3 with different sulphur absorption capacities. In the diagram, layer LI has the lowest absorption capacity and if the fuel has a sulphur content SI which exceeds this capacity the layer will so indicate in a way similar to that described above. Layer L2 has a greater absorption capacity than LI and can therefore absorb a sulphur content S2 which exceeds SI . Layer L3 has a greater absorption capacity than L2 and can therefore absorb a sulphur content S3 which exceeds S2. In a variant of this embodiment, the indicating unit comprises a single layer with a predetermined sulphur absorption capacity. The indicating unit 8 is situated detachably in the carrier element 6, allowing it to be taken away from the carrier element in order to be analysed. The analysis involves analysing the sulphur content in each capsule/layer and deciding whether it has increased to more than the original content. If such is the case, it indicates that sulphur has been supplied from the fuel and that the sulphur content in the fuel has exceeded the predetermined level for the respective capsule/layer.
When the indicating unit has been removed in this way, a replacement indicating unit may be fitted to the carrier element for further and continuing indications of the sulphur content in the fuel with which the vehicle is subsequently refuelled.
The invention relates also to a method for indication of sulphur content in a fuel intended for a combustion engine, by means of a device comprising a carrier 4 with a carrier element 6 as described above. According to the method, a passive indicating unit 8, 8', 8" is placed in said carrier element 6. The carrier element has also to be so situated that the indicating unit 8 is in contact with the fuel whose sulphur content is to be indicated.
Similarly to as described above, the indicating unit has to be adapted to monitoring a sulphur content which exceeds one or more predetermined levels. To obtain an indication of whether the fuel monitored has a sulphur content which exceeds said one or more predetermined levels, the indicating unit has to be removed for analysis.
The present invention is not restricted to the preferred embodiments described above, since sundry alternatives, modifications and equivalents may be used. The embodiments exemplified above are therefore not to be regarded as limiting the invention's protective scope which is defined by the attached claims. The carrier may for example be in some way sealed with a view to preventing and/or revealing any unauthorised removal and replacement of the indicating unit. The description is largely concerned with what applies in the case of diesel vehicles but may with advantage be employed in all applications which involve diesel-powered combustion engines, e.g. engines for marine or industrial use. The invention may also be employed for other types of engines and fuels where similar needs occur.

Claims

Claims
1. A device (2) for indication of sulphur content in a fuel intended for a combustion engine, comprising a carrier (4) with a carrier element (6),
c h a r a c t e r i s e d in that the device comprises a passive indicating unit (8, 8', 8") situated in said carrier element (6), the carrier element being adapted to being so situated that the indicating unit (8) is in contact with the fuel whose sulphur content is to be indicated, and in that the indicating unit is adapted to monitoring a sulphur content which exceeds one or more predetermined levels, the indicating unit being adapted to being analysed when the device has been removed, in order to obtain an indication of whether the fuel monitored has a sulphur content which exceeds said one or more predetermined levels.
2. A device according to claim 1, in which the indicating unit (8') comprises one or more capsules (10) which each have a cavity closed by semipermeable membrane
(Ml, M2) through which sulphur compounds can enter the cavity, each capsule (10) containing a liquid with a predetermined sulphur content (CI, C2).
3. A device according to claim 1, in which the indicating unit (8") comprises one or more layers (LI, L2, L3) which each have a predetermined sulphur absorption capacity.
4. A device according to any one of the foregoing claims, in which the indicating unit is fitted detachably in the carrier element.
5. A device according to any one of the foregoing claims, in which the carrier (4) is a bottom plug for fitting in a fuel tank for the combustion engine, and the indicating unit (8) is so arranged as to be in contact with the fuel in the fuel tank when the bottom plug is fitted.
6. A device according to claim 1, in which one of said predetermined levels is
10 ppm.
7. A method for indication of sulphur content in a fuel intended for a combustion engine, by means of a device comprising a carrier (4) with a carrier element (6), c h a r a c t e r i s e d by placing a passive indicating unit (8, 8', 8") in said carrier element (6), by so placing the carrier element that the indicating unit (8) is in contact with the fuel whose sulphur content is to be indicated, by adapting the indicating unit to monitor a sulphur content which exceeds one or more predetermined levels, and by removing the indicating unit for analysis in order to obtain an indication of whether the fuel monitored has a sulphur content which exceeds said one or more predetermined levels.
PCT/SE2012/050710 2011-06-30 2012-06-26 Device and method for indication of sulphur content in a fuel WO2013002713A1 (en)

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SE1150610-2 2011-06-30
SE1150610A SE535895C2 (en) 2011-06-30 2011-06-30 Device and method for indicating sulfur content in a fuel

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014074054A1 (en) * 2012-11-06 2014-05-15 Scania Cv Ab Sulphur content indicator for fuel, vehicle comprising such an indicator and a method for indicating sulphur content in fuel
WO2015084251A1 (en) 2013-12-06 2015-06-11 Scania Cv Ab Sampling unit for a fluid sample adapted to be fitted into a system with temperature variations
WO2015084249A1 (en) 2013-12-06 2015-06-11 Scania Cv Ab Sampling unit for a liquid sample adapted to be fitted in a system with pressure variations
WO2015084250A1 (en) * 2013-12-06 2015-06-11 Scania Cv Ab Sampling unit for a liquid sample adapted to be fitted into a system with temperature variations

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Publication number Priority date Publication date Assignee Title
US20020079236A1 (en) * 2000-09-16 2002-06-27 Armin Hurland Sensor for determining the concentration of sulphur compounds in a liquid
US20040063215A1 (en) * 2001-09-28 2004-04-01 Shinko Electric Industries Co., Ltd Sulfur component sensor and sulfur component detector
EP1818666A1 (en) * 2006-02-13 2007-08-15 FOSS Analytical A/S Determination of Sulphur in Marine Fuel Oils
WO2009037089A1 (en) * 2007-09-19 2009-03-26 Siemens Aktiengesellschaft Fuel system for a floating unit, and method for the operation thereof
EP2058648A1 (en) * 2007-07-11 2009-05-13 Toyota Jidosha Kabushiki Kaisha Apparatus for detecting concentration of sulfur contained in fuel or oil
US20090317299A1 (en) * 2008-06-24 2009-12-24 Caterpillar Inc. Light based fuel sulfur sensor and system
WO2011014635A2 (en) * 2009-07-29 2011-02-03 Caterpillar Inc. Electrochemical sulfur sensor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020079236A1 (en) * 2000-09-16 2002-06-27 Armin Hurland Sensor for determining the concentration of sulphur compounds in a liquid
US20040063215A1 (en) * 2001-09-28 2004-04-01 Shinko Electric Industries Co., Ltd Sulfur component sensor and sulfur component detector
EP1818666A1 (en) * 2006-02-13 2007-08-15 FOSS Analytical A/S Determination of Sulphur in Marine Fuel Oils
EP2058648A1 (en) * 2007-07-11 2009-05-13 Toyota Jidosha Kabushiki Kaisha Apparatus for detecting concentration of sulfur contained in fuel or oil
WO2009037089A1 (en) * 2007-09-19 2009-03-26 Siemens Aktiengesellschaft Fuel system for a floating unit, and method for the operation thereof
US20090317299A1 (en) * 2008-06-24 2009-12-24 Caterpillar Inc. Light based fuel sulfur sensor and system
WO2011014635A2 (en) * 2009-07-29 2011-02-03 Caterpillar Inc. Electrochemical sulfur sensor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014074054A1 (en) * 2012-11-06 2014-05-15 Scania Cv Ab Sulphur content indicator for fuel, vehicle comprising such an indicator and a method for indicating sulphur content in fuel
WO2015084251A1 (en) 2013-12-06 2015-06-11 Scania Cv Ab Sampling unit for a fluid sample adapted to be fitted into a system with temperature variations
WO2015084249A1 (en) 2013-12-06 2015-06-11 Scania Cv Ab Sampling unit for a liquid sample adapted to be fitted in a system with pressure variations
WO2015084250A1 (en) * 2013-12-06 2015-06-11 Scania Cv Ab Sampling unit for a liquid sample adapted to be fitted into a system with temperature variations
EP3077785A4 (en) * 2013-12-06 2017-07-26 Scania CV AB Sampling unit for a fluid sample adapted to be fitted into a system with temperature variations
RU2637968C1 (en) * 2013-12-06 2017-12-08 Сканиа Св Аб Sampler for fluid sampling, suitable for installation in system with temperature variations
RU2660053C1 (en) * 2013-12-06 2018-07-04 Сканиа Св Аб Sampling unit for a liquid sample adapted to be fitted in a system with pressure variations
RU2668031C1 (en) * 2013-12-06 2018-09-25 Сканиа Св Аб Sampling unit for liquid sample adapted to be fitted into system with temperature variations

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SE1150610A1 (en) 2012-12-31

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