SU72336A1 - Method for determining the content of heavy hydrocarbons in the air, etc. gases - Google Patents
Method for determining the content of heavy hydrocarbons in the air, etc. gasesInfo
- Publication number
- SU72336A1 SU72336A1 SU44548A SU44548A SU72336A1 SU 72336 A1 SU72336 A1 SU 72336A1 SU 44548 A SU44548 A SU 44548A SU 44548 A SU44548 A SU 44548A SU 72336 A1 SU72336 A1 SU 72336A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- air
- heavy hydrocarbons
- gases
- determining
- content
- Prior art date
Links
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Предлагаемый споеоб определени содегжанн т желых углеводородов в возду.хе и т. п. газах основа н на адеорблнп пселедуемого или газа при помощи силикагел .The proposed definition of heavy hydrocarbons in air and so on. Gases are based on adsorbed gas or gas using silica gel.
Сущность его заключаетс в следующем.Its essence is as follows.
Воздух из скважин глубиной 2 - 3 м и больше, закладываемых в тех же услови х, какие примен ютс при газовой съемке другими методами, с помощью вод ного аспиратора просасываетс через две U-образные трубки, наполненные силикагелем и охлажденные до 15-20° смесью льда и соли.Air from wells 2–3 m deep and more laid in the same conditions that are used for gas surveying by other methods, is sucked through a water aspirator through two U-shaped tubes filled with silica gel and cooled to 15–20 ° C with a mixture ice and salt.
Объем просасываемого воздуха составл ет 40 - 60 л. Воздух пропускаетс через раствор едкого кали и через серную кислоту.The volume of air drawn in is 40 to 60 liters. Air is passed through a solution of potassium hydroxide and through sulfuric acid.
Как иоказали лабораторные опыты, при наличии в воздухе от 0,0001 до 0,01% наров т желых углеводородов (нентан, петролейный эфир) они задерживаютс силикагелем в количестве 60 - 90%.As laboratory experiments have shown, in the presence of 0.0001 to 0.01% of heavy hydrocarbons (nentane, petroleum ether) in air, they are retained by silica gel in an amount of 60-90%.
По окончании просасывани воздуха краны трубок с силикагелем закрываютс и одно из отверстий соедин етс с газовой бюреткой, наполненной ртутью. Трубка с силикагелем нагреваетс в печи до 150° и адсорбированные газы переход т в бюретку.At the end of air suction, the silica gel valves are closed and one of the holes is connected to a gas burette filled with mercury. The silica gel tube is heated in the oven to 150 ° C and the adsorbed gases are transferred to a burette.
Далее через силикагель небольшими порци ми пропускаетс атмосферный воздух дл полного извлечени поглощенных газов, после чего газ в бюретке промываетс раствором едкого кали и его объем подвергаетс измерению. Затем собранный газ пропускаетс через колонку с платиновой спиралью, котора доводитс до рко-красного калени . Т желые углеводороды, сгора , образуют углекислый газ, который поглощаетс щелочью. Уменьшение объема газа дает объе образовавшейс углекислоты. Делением этого объема на п ть наход т объем т желых углеводородов в расчете на пентап.Then, atmospheric air is passed through small amounts of silica gel to completely remove the absorbed gases, after which the gas in the burette is washed with a solution of caustic potassium and its volume is measured. Then the collected gas is passed through a column with a platinum coil, which is brought to a bright red glow. Heavy hydrocarbons, burned, form carbon dioxide, which is absorbed by alkali. Reducing the volume of gas gives the volume of carbon dioxide formed. By dividing this volume by five, the volume of heavy hydrocarbons is calculated per pentap.
№ 72336- 2 Предмет И з о б р е т е н и № 72336- 2 Subject I z o bre te
Способ определени еодержани т желых углеводородов в воздухе и т. п. газах, от л и ч а ющийс тем, что исследуемый воздух или газ пропускают через охлажденный силикагель, адсорбирующий т желые углеводороды, которые затем извлекают нагреванием силикагел и после измерени их объема подвергают сжиганию и опреде.ч ют продукты сгорани обычным путем.The method of determining the content of heavy hydrocarbons in air, etc., gases, which is due to the fact that the test air or gas is passed through cooled silica gel, which adsorbs heavy hydrocarbons, which are then removed by heating the silica gel and after measuring their volume are subjected to burning and determine the combustion products in the usual way.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU44548A SU72336A1 (en) | 1941-06-14 | 1941-06-14 | Method for determining the content of heavy hydrocarbons in the air, etc. gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU44548A SU72336A1 (en) | 1941-06-14 | 1941-06-14 | Method for determining the content of heavy hydrocarbons in the air, etc. gases |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU182267A Addition SU47689A1 (en) | 1935-12-14 | 1935-12-14 | The method of obtaining 2,4 dichlorobenzoic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
SU72336A1 true SU72336A1 (en) | 1947-11-30 |
Family
ID=48248880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU44548A SU72336A1 (en) | 1941-06-14 | 1941-06-14 | Method for determining the content of heavy hydrocarbons in the air, etc. gases |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU72336A1 (en) |
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1941
- 1941-06-14 SU SU44548A patent/SU72336A1/en active
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