WO2001069233A2 - Sampling device for gas analyses of raw coke oven gases and other contaminated gases and method for analysis thereof - Google Patents
Sampling device for gas analyses of raw coke oven gases and other contaminated gases and method for analysis thereof Download PDFInfo
- Publication number
- WO2001069233A2 WO2001069233A2 PCT/EP2001/002667 EP0102667W WO0169233A2 WO 2001069233 A2 WO2001069233 A2 WO 2001069233A2 EP 0102667 W EP0102667 W EP 0102667W WO 0169233 A2 WO0169233 A2 WO 0169233A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- electrostatic filter
- gases
- sampling
- saturator
- Prior art date
Links
- 239000007789 gas Substances 0.000 title claims abstract description 111
- 238000005070 sampling Methods 0.000 title claims abstract description 38
- 239000000571 coke Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 9
- 238000004458 analytical method Methods 0.000 title abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 15
- 238000004868 gas analysis Methods 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 claims description 10
- 239000012717 electrostatic precipitator Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 6
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 claims 1
- 239000011269 tar Substances 0.000 abstract 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000004939 coking Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 108010063955 thrombin receptor peptide (42-47) Proteins 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/019—Post-treatment of gases
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- 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
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0014—Sample conditioning by eliminating a gas
-
- 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
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N2001/227—Sampling from a flowing stream of gas separating gas from solid, e.g. filter
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2282—Devices for withdrawing samples in the gaseous state with cooling means
Definitions
- the invention relates to a device for sampling for gas analysis of gases heavily loaded with impurities, in particular with solids and tar, according to the preamble of claim 1 and a method for gas analysis of these gases
- the raw coke oven gas produced from coking coal is a brown-yellow mixture of gases and vapors. It mainly consists of hydrogen, methane, unsaturated hydrocarbons, carbon oxide, carbon dioxide, nitrogen, ammonia, sulfur and hydrogen sulfide as well as tar.
- the raw coke oven gas In order to use the raw coke oven gas as heating gas in steelworks or power plants or to feed it into a gas network, it has to be cleaned in a special raw gas treatment plant.
- the steam-saturated coke oven raw gas coming from the coke ovens which is approx. 80 ° C hot, is first indirectly cooled and electrostatically de-aerated before it is largely freed from hydrogen sulfide, ammonia, benzene and naphthalene. Due to the high proportion of particulate and tarry constituents in the raw coke oven gas, it is not possible to continuously sample the coke oven raw gas coming from the coke ovens, which is saturated with steam at approx. 80 ° C, in order to carry out gas analyzes in online operation.
- the continuous sampling of the raw coke oven gas only takes place after indirect gas cooling and electrostatic de-icing in the cold area (approx. 20 ° C).
- the maintenance effort for this sampling is still very high there.
- a continuous oxygen measurement in the raw coke oven gas can therefore only take place at the outlet of the electrostatic filter. Therefore, the time for switching off the electrostatic filter when an explosive mixture is detected in this area must be very short.
- the cut-off point for the electrostatic filter is usually set to a limit oxygen content of less than 2% in the raw coke oven gas. This often leads to unnecessary downtimes in the field of coke oven raw gas depletion.
- the invention has for its object to provide an apparatus and method with which continuous sampling and analysis of gases heavily loaded with contaminants, such as solids and tar, is reliably possible with little maintenance.
- the response time for switching off electrostatic discharge systems for raw coke oven gas should be extended.
- Another task is to provide a method for gas analysis of these gases.
- the sample gas to be analyzed is kept in a sampling line and in an electrostatic filter at the temperature at which the sampling takes place.
- this temperature is approx. 80 ° C for raw coke oven gas.
- the sampling line and the electrostatic filter must be largely protected against condensation, e.g. B. by insulation, so that water and tar can not condense appreciably, which would lead to caking in the sampling line and the electrostatic filter. Preference is given to heating the sampling line and the electrostatic filter to a temperature which corresponds to the temperature of the sample gas during sampling.
- the electrostatic precipitator has a significantly higher efficiency at a temperature of approx. 80 ° C than at lower temperatures. 99.99% of the solids are separated in the heated electrostatic precipitator.
- the sample gas is then - preferably - passed through a heated cotton filter. In this cotton filter any entrained particles are separated due to the reduction in flow velocity and the filter effect of the cotton.
- the sample gas then flows into a heated gas saturator.
- the gas saturator is mixed with an organic solvent, e.g. B. decalin filled.
- the sample gas is saturated with the solvent according to the saturation vapor pressure.
- the sample gas is now fed into an indirect cooler in which the water vapor and the naphthalene contained in the sample gas are condensed out.
- the naphthalene does not clog the cooler because it is dissolved and washed off by the solvent taken up in the saturator, which also condenses in the cooler.
- the naphthalene can also be separated with a wash bottle filled with solvent.
- the sample gas cleaned in this way can now be conveyed continuously by means of the gas pump to the desired online analysis and to the oxygen measurement connected in parallel.
- a solvent trap is provided in front of the gas saturator, which separates entrained solvent in the event of fluctuations in pressure.
- the sampling system according to the invention is protected against explosion by a locking chain.
- PSA switch Pressure Switch Alarm
- the locking chain also closes automatically if an oxygen content of> 4% is measured during the oxygen measurement.
- an alarm message (signal lamp and horn) and a switch-off signal can be sent from the sampling device to the technical facilities, such as the electrostatic emptying of a coking plant.
- the sample gas After passing through the oneline analysis devices, the sample gas can be returned to the sample gas line.
- the sampling device can be arranged in a transport case.
- the transport case can be heated so that separate heating of the electrostatic precipitator and the gas saturator is not necessary.
- sampling device With the sampling device according to the invention, continuous sampling is possible with all gases containing a lot of dust, such as e.g. waste incineration, gasification, heavy oil firing, coal firing systems and blast furnace gases.
- gases containing a lot of dust such as e.g. waste incineration, gasification, heavy oil firing, coal firing systems and blast furnace gases.
- test gas is under pressure, a gas pump may not be necessary.
- Figure. 1 shows a schematic illustration of the sampling device
- Figure 2 shows an electrostatic filter with integrated solids determination.
- a heated sampling line 2 is branched off in front of a coke oven raw gas line 1 of a coking plant, not shown, which is connected to a heated electrostatic filter 3 for separating the aerosol-like contaminants of the raw gas.
- the electrostatic filter 3 is operated with a high-voltage generator 4.
- the electrostatic filter 3 is provided with a continuous drain 3 '.
- a cotton filter 5, which is also heatable, is arranged behind the electrostatic filter 3.
- the sample gas then flows through a gas saturator 6 with decalin 6a, which is preceded by a solvent trap 6 '.
- the sample gas saturated with decalin 6a flows into a cooler 7, in which the condensation takes place.
- the cooler 7 is provided with a continuous drain T.
- the sample gas processed in this way can be fed to a continuous oxygen measurement 10 via a gas pump 8. Further online gas measuring devices 9 are connected via a further line.
- the electrostatic filter 11 shows an electrostatic filter 11 with integrated solids determination.
- the electrostatic filter 11 consists of a cylindrical jacket 12, which serves as a negative pole, and a spray wire 13 with an insulator 13M.
- the cylindrical jacket 12 has a cover 14.
- a cone 15 with an outlet 17 is arranged, which can be closed by a shut-off valve 16.
- the sample gas enters through a gas inlet nozzle 18 which is open in the direction 'of the cone 15 °.
- the cone 15 of the electrostatic precipitator 11, which acts as a diffuser, results in a reduction in the flow velocity, as a result of which rough particles are already pre-separated in the sample gas.
- the sample gas leaves the electrostatic precipitator 11 via a gas outlet connection 19 which is arranged at the upper end of the cylindrical jacket 12 of the electrostatic precipitator 11.
- a collecting container 20 is arranged under the cone 15 of the electrostatic filter 11.
- the collecting container 20 receives the substances separated in the electrostatic filter 11 via an outlet 17.
- the collecting container 20 can be emptied via an emptying 22 with a shut-off valve 21 onto a sieve plate 24 with a balance 25.
- the emptying takes place under nitrogen, which is fed into the collecting container 20 through a nitrogen supply 23. Since 99.99% of the solids carried with the sample gas are separated in the electrostatic filter 11, there is thus the possibility of continuously determining the solids content of the sample gas by weighing.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020027010493A KR20020088071A (en) | 2000-03-13 | 2001-03-09 | Sampling device for gas analyses of raw coke oven gases and other contaminated gases and method for analysis thereof |
AU2001244200A AU2001244200A1 (en) | 2000-03-13 | 2001-03-09 | Sampling device for gas analyses of raw coke oven gases and other contaminated gases and method for analysis thereof |
JP2001568064A JP2003527602A (en) | 2000-03-13 | 2001-03-09 | Apparatus for sampling of untreated coke oven gas and other contaminated gases for gas analysis and method for gas analysis of these gases |
EP01917082A EP1264175A2 (en) | 2000-03-13 | 2001-03-09 | Sampling device for gas analyses of raw coke oven gases and other contaminated gases and method for analysis thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10011531A DE10011531A1 (en) | 2000-03-13 | 2000-03-13 | Raw coke gas sampler feeds analysis instrument via heated electro-filter protected from condensation via a gas cooler |
DE10011531.4 | 2000-03-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001069233A2 true WO2001069233A2 (en) | 2001-09-20 |
WO2001069233A3 WO2001069233A3 (en) | 2002-02-14 |
Family
ID=7634120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/002667 WO2001069233A2 (en) | 2000-03-13 | 2001-03-09 | Sampling device for gas analyses of raw coke oven gases and other contaminated gases and method for analysis thereof |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1264175A2 (en) |
JP (1) | JP2003527602A (en) |
KR (1) | KR20020088071A (en) |
AU (1) | AU2001244200A1 (en) |
DE (1) | DE10011531A1 (en) |
WO (1) | WO2001069233A2 (en) |
ZA (1) | ZA200206180B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101183055B (en) * | 2007-12-20 | 2010-05-19 | 眉山麦克在线设备有限公司 | Coal liquification device on-line analysis sample pretreatment system |
CN103983486A (en) * | 2014-03-26 | 2014-08-13 | 江苏省沙钢钢铁研究院有限公司 | Micro-coking sample preparation device and method for determining coke microstructure |
CN115575572A (en) * | 2022-09-27 | 2023-01-06 | 珠海易奥科技有限公司 | Online oxygen analysis device |
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FR2910967B1 (en) * | 2006-12-28 | 2009-04-03 | Commissariat Energie Atomique | DEVICE AND METHOD FOR CONTINUOUSLY MEASURING TARGET CONCENTRATION IN A GASEOUS FLOW |
EP2405254B1 (en) | 2010-07-05 | 2014-06-04 | Sick Ag | Optoelectronic method for gas analysis |
KR101310800B1 (en) * | 2011-09-29 | 2013-09-25 | 현대제철 주식회사 | Tester for raw materials for coke |
CN105203355A (en) * | 2014-06-24 | 2015-12-30 | 上海宝钢化工有限公司 | Coke oven gas sampling device and method |
CN104403699B (en) * | 2014-11-13 | 2017-03-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | One kind is used for coke oven sample gas pre-processing device |
DE102016123473A1 (en) * | 2016-12-05 | 2018-06-07 | Endress+Hauser Messtechnik GmbH+Co.KG | Sample preparation facility |
CN109030123A (en) * | 2018-08-27 | 2018-12-18 | 佛山科学技术学院 | A kind of air sampler for hot environment |
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US3799855A (en) * | 1972-06-15 | 1974-03-26 | Petrolite Corp | Solids removal process |
DD133634A1 (en) * | 1977-10-27 | 1979-01-17 | Alois Hahn | DEVICE FOR MIXING STROEMENDER, ESPECIALLY DUST-CONTAINING GASES |
US4257258A (en) * | 1978-08-23 | 1981-03-24 | Sun Electric Europe B.V. | Exhaust gas analyzer for diesel engines |
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DE4012146A1 (en) * | 1990-04-14 | 1991-10-17 | Still Otto Gmbh | Precooling of coke-oven gas - with electrostatic filtration and naphthalene scrubbing |
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- 2000-03-13 DE DE10011531A patent/DE10011531A1/en not_active Ceased
-
2001
- 2001-03-09 WO PCT/EP2001/002667 patent/WO2001069233A2/en active Application Filing
- 2001-03-09 JP JP2001568064A patent/JP2003527602A/en active Pending
- 2001-03-09 EP EP01917082A patent/EP1264175A2/en not_active Withdrawn
- 2001-03-09 AU AU2001244200A patent/AU2001244200A1/en not_active Abandoned
- 2001-03-09 KR KR1020027010493A patent/KR20020088071A/en not_active Application Discontinuation
-
2002
- 2002-08-02 ZA ZA200206180A patent/ZA200206180B/en unknown
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101183055B (en) * | 2007-12-20 | 2010-05-19 | 眉山麦克在线设备有限公司 | Coal liquification device on-line analysis sample pretreatment system |
CN103983486A (en) * | 2014-03-26 | 2014-08-13 | 江苏省沙钢钢铁研究院有限公司 | Micro-coking sample preparation device and method for determining coke microstructure |
CN115575572A (en) * | 2022-09-27 | 2023-01-06 | 珠海易奥科技有限公司 | Online oxygen analysis device |
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KR20020088071A (en) | 2002-11-25 |
ZA200206180B (en) | 2003-03-18 |
JP2003527602A (en) | 2003-09-16 |
EP1264175A2 (en) | 2002-12-11 |
DE10011531A1 (en) | 2001-09-27 |
AU2001244200A1 (en) | 2001-09-24 |
WO2001069233A3 (en) | 2002-02-14 |
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