GB649764A - Apparatus for continuous analysis of gases - Google Patents
Apparatus for continuous analysis of gasesInfo
- Publication number
- GB649764A GB649764A GB1874646A GB1874646A GB649764A GB 649764 A GB649764 A GB 649764A GB 1874646 A GB1874646 A GB 1874646A GB 1874646 A GB1874646 A GB 1874646A GB 649764 A GB649764 A GB 649764A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- measured
- solid
- absorption
- oxygen
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/02—Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder
- G01N7/08—Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder by combustion followed by absorption or adsorption of the combustion products
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/44—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the heat developed being transferred to a fixed quantity of fluid
- G01N25/46—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the heat developed being transferred to a fixed quantity of fluid for investigating the composition of gas mixtures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
<PICT:0649764/III/1> <PICT:0649764/III/2> In a portable apparatus for continuous gas analysis the use of liquids is avoided and constituents of the gas are removed by solid absorbents. The velocities of the gas current before and after absorption are measured by " Rotameters " (Registered Trade Mark), which comprise indicator bodies D, G, K, Fig. 1, suspended by the upwardly-flowing gas current. Alternatively the pressure of the gas before and after absorption may be measured by any instruments not containing liquid, e.g. the aneroid devices 33 shown in Fig. 6. One or more constituents may be successively measured by absorption and further constituents may be determined by their heat of combustion using, for example, the device of Specification 402,011. The passage of gas through the apparatus may be effected by a pressure pump A, b, Fig. 1, or a suction pump P, Fig. 6. As shown in Fig. 1, the gas is dried by calcium chloride B and carbon dioxide and oxygen are successively removed by means of solid potassium hydroxide E and white phosphorus H, the volumes absorbed being determined by means of " Rotameters " C, F, I. By means of an injector N air is drawn in through valve M and the combustion of carbon monoxide is effected by means of a hopcalite catalyst X, the rise in temperature of which is measured by differential thermometer P. If in addition hydrogen is to be determined, a second catalyst tube (not shown) heated to 100-360 DEG C. and containing hopcalite or cobaltic oxide is attached. Instead of admitting air, oxygen may be supplied by passing the gas successively through vessels containing respectively a slightly volatile acid (either solid or absorbed in a solid), a substance such as a peroxide which evolves oxygen on contact with acid, and a drying agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1874646A GB649764A (en) | 1946-06-21 | 1946-06-21 | Apparatus for continuous analysis of gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1874646A GB649764A (en) | 1946-06-21 | 1946-06-21 | Apparatus for continuous analysis of gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB649764A true GB649764A (en) | 1951-01-31 |
Family
ID=10117687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1874646A Expired GB649764A (en) | 1946-06-21 | 1946-06-21 | Apparatus for continuous analysis of gases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB649764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034604A (en) * | 2021-11-25 | 2022-02-11 | 中国工程物理研究院材料研究所 | Hydrogen-involved material comprehensive reaction system and test method thereof |
-
1946
- 1946-06-21 GB GB1874646A patent/GB649764A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034604A (en) * | 2021-11-25 | 2022-02-11 | 中国工程物理研究院材料研究所 | Hydrogen-involved material comprehensive reaction system and test method thereof |
| CN114034604B (en) * | 2021-11-25 | 2023-06-16 | 中国工程物理研究院材料研究所 | Hydrogen related material comprehensive reaction system and test method thereof |
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