FR2155048A5 - Automatic sulphur trioxide pollution assay - by cyclical sampling process facilitating neutralization by ammonia dosing - Google Patents
Automatic sulphur trioxide pollution assay - by cyclical sampling process facilitating neutralization by ammonia dosingInfo
- Publication number
- FR2155048A5 FR2155048A5 FR7135809A FR7135809A FR2155048A5 FR 2155048 A5 FR2155048 A5 FR 2155048A5 FR 7135809 A FR7135809 A FR 7135809A FR 7135809 A FR7135809 A FR 7135809A FR 2155048 A5 FR2155048 A5 FR 2155048A5
- Authority
- FR
- France
- Prior art keywords
- assay
- pollution
- sampling process
- sulphur trioxide
- pref
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000005070 sampling Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title 2
- 229910021529 ammonia Inorganic materials 0.000 title 1
- 238000003556 assay Methods 0.000 title 1
- 238000006386 neutralization reaction Methods 0.000 title 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 239000003517 fume Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000002808 molecular sieve Substances 0.000 abstract 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 238000001139 pH measurement Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
-
- 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
- G01N33/0013—Sample conditioning by a chemical reaction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Treating Waste Gases (AREA)
Abstract
The concentration of SO3, present esp. in power station exhaust fumes, is estimated by the charge in pH of aq. isopropanol used to wash it from a molecular sieve, after condensation from a sample drawn from the fumes. Pref. a diaphragm pump draws gas through the tube of a serpentine condenser, maintained at 60-80 degrees C and condensed SO3 is trapped by a sintered glass molecular sieve. Aq. isopropanol is then drawn through to wash SO3 into a stirred tank equipped with a pH meter, which may be calibrated directly in SO3 concentration referred to gas. All valves are operated e.g. by a rotating cam switch, and automatic washing of condenser by acetone and of measuring tank by demineralised water is incorporated. The method may be used to control injection of neutralising NH3. Time cycle is short, pH measurement stage pref. coincides with sampling stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7135809A FR2155048A5 (en) | 1971-10-05 | 1971-10-05 | Automatic sulphur trioxide pollution assay - by cyclical sampling process facilitating neutralization by ammonia dosing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7135809A FR2155048A5 (en) | 1971-10-05 | 1971-10-05 | Automatic sulphur trioxide pollution assay - by cyclical sampling process facilitating neutralization by ammonia dosing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2155048A5 true FR2155048A5 (en) | 1973-05-18 |
Family
ID=9083931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7135809A Expired FR2155048A5 (en) | 1971-10-05 | 1971-10-05 | Automatic sulphur trioxide pollution assay - by cyclical sampling process facilitating neutralization by ammonia dosing |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2155048A5 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2492103A1 (en) * | 1980-10-15 | 1982-04-16 | Westinghouse Electric Corp | PROCESS FOR MONITORING THE PRESENCE OF SO3, H2SO4 IN EXHAUST GASES CONTAINING SO2 |
| EP0512237A2 (en) * | 1991-05-03 | 1992-11-11 | Hartmann & Braun Aktiengesellschaft | Method and device for the preparation of a gas to be analyzed |
| CN104122374A (en) * | 2014-08-14 | 2014-10-29 | 福建龙净环保股份有限公司 | Method and device for checking sulfur trioxide sampling test system |
-
1971
- 1971-10-05 FR FR7135809A patent/FR2155048A5/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2492103A1 (en) * | 1980-10-15 | 1982-04-16 | Westinghouse Electric Corp | PROCESS FOR MONITORING THE PRESENCE OF SO3, H2SO4 IN EXHAUST GASES CONTAINING SO2 |
| EP0512237A2 (en) * | 1991-05-03 | 1992-11-11 | Hartmann & Braun Aktiengesellschaft | Method and device for the preparation of a gas to be analyzed |
| EP0512237A3 (en) * | 1991-05-03 | 1994-02-09 | Hartmann & Braun Ag | |
| CN104122374A (en) * | 2014-08-14 | 2014-10-29 | 福建龙净环保股份有限公司 | Method and device for checking sulfur trioxide sampling test system |
| CN104122374B (en) * | 2014-08-14 | 2016-06-01 | 福建龙净环保股份有限公司 | The verification method of a kind of sulphur trioxide sampling test macro and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |