SU519624A1 - Method for measuring impurities reducing agents in inert gases and nitrogen - Google Patents

Method for measuring impurities reducing agents in inert gases and nitrogen

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Publication number
SU519624A1
SU519624A1 SU2028116A SU2028116A SU519624A1 SU 519624 A1 SU519624 A1 SU 519624A1 SU 2028116 A SU2028116 A SU 2028116A SU 2028116 A SU2028116 A SU 2028116A SU 519624 A1 SU519624 A1 SU 519624A1
Authority
SU
USSR - Soviet Union
Prior art keywords
nitrogen
reducing agents
inert gases
measuring impurities
impurities reducing
Prior art date
Application number
SU2028116A
Other languages
Russian (ru)
Inventor
Юрий Борисович Емельянов
Геннадий Михайлович Мурзин
Рудольф Львович Пинхусович
Дмитрий Павлович Подругин
Original Assignee
Предприятие П/Я В-8855
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 Предприятие П/Я В-8855 filed Critical Предприятие П/Я В-8855
Priority to SU2028116A priority Critical patent/SU519624A1/en
Application granted granted Critical
Publication of SU519624A1 publication Critical patent/SU519624A1/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Description

Изобретение относитс  к области газового анализа и может быть использовано дл  определени  микроконцентрации газообразных веществ , вступающих во взаимодействие с кислородом при температуре 400-1000°С (восстановителей ), например, водорода, метана, СО, углеводородов и других органических веществ в инертных по отношению к кислороду средах, например инертных газах, азоте.The invention relates to the field of gas analysis and can be used to determine the microconcentration of gaseous substances that interact with oxygen at a temperature of 400-1000 ° C (reducing agents), for example, hydrogen, methane, CO, hydrocarbons and other organic substances inert to oxygen environments, such as inert gases, nitrogen.

Известен способ измерени  концентрации восстановителей с помощью устройства, включающего твердоэлектролитную электрохимическую  чейку (ТЭЯ), обладающую кислородоионной проводимостью. В основе этого способа лежит свойство ТЭЯ с высокой степенью точности регистрировать наличие избыточного кислорода или избыточного восстановител  в анализируемом газе по резкому изменению э. д. с. на ее электродах.There is a method for measuring the concentration of reducing agents using a device comprising a solid electrolyte electrochemical cell (SED) with oxygen-ionic conductivity. The basis of this method is the property of the SEM with a high degree of accuracy to detect the presence of excess oxygen or excess reducing agent in the analyzed gas by a sharp change in e. d. on her electrodes.

Недостатком этого способа  вл етс  сложкость автоматического анализа, дл  осуществлени  которого необходимо специальное устройство , автоматически регулирующее количество добавл емого кислорода в зависимости от э. д. с.  чейки.The disadvantage of this method is the complexity of the automatic analysis, which requires a special device that automatically adjusts the amount of added oxygen depending on e. d. cells

Цель изобретени  - иовыщение точности измерени  и упрощение аппаратурного оформлени .The purpose of the invention is to improve the measurement accuracy and simplify the hardware design.

Отличительной особенностью предлагаемого способа  вл етс  то, что на электродах A distinctive feature of the proposed method is that on the electrodes

 чейки поддерживают посто нное напр жение, определ емое из уравнени :the cells support a constant voltage determined from the equation:

2Р,2P,

t/+CFMQr nf 1 t / + CFMQr nf 1

О;ABOUT;

ехрГj RTexpGt RT

44800-3 CFMQr44800-3 CFMQr

Ц ехр|У(C exp | W (

,4-LV44800-3 J RT I, 4-LV44800-3 J RT I

..

ДЛЯ двух значений С, вз тых на границах измер емого диапазона, и по величине измер емого тока переноса суд т о содержании восстановител , причем расход анализируемого газа и температуру  чейки поддерживают посто нными , где:For two values of C, taken at the boundaries of the measured range, and based on the value of the measured transfer current, the content of the reducing agent is judged, and the flow rate of the analyzed gas and the temperature of the cell are kept constant, where:

РО - парциальное давление кислорода в сравнительной среде, кг/см ;PO is the partial pressure of oxygen in a comparative environment, kg / cm;

С - концентраци  восстановител  (в объемных дол х);C is the concentration of the reducing agent (in volume parts);

и - напр жение источника. В;and - source voltage. AT;

F - 96500 к/г-экв (число Фараде ); - число электронов, участвующих в электрохимической реакции;F - 96500 k / g-eq (Farade number); - the number of electrons involved in the electrochemical reaction;

К - 8,314 дж/моль-град (газова  посто нна ) ;K - 8.314 J / mol-grad (gas constant);

Т-абсолютна  температура  чейки, К;T is the absolute temperature of the cell, K;

г - омическое сопротивление  чейки, ом;g - ohmic resistance of the cell, ohm;

Q - расход газа, см /сек; Э 8 - эквивалент кислорода;Q - gas flow, cm / sec; O 8 - oxygen equivalent;

Составитель А. Сырченков Техред А. КамышниковаCompiled by A. Syrchenkov Tehred A. Kamyshnikova

Редактор П. Кононович Заказ Editor P. Kononovich Order

Корректор Н. Стельмах 1790/6Изд. Х 1549Тираж 1029Подписное ЦНИИПИ Государственного комитета Совета Министров СССР по делам изобретений и открытий 13035, Лгосква, Ж-35, Раушска  наб., д. 4/5 Типографи , пр. Сапунова, 2Proofreader N. Stelmach 1790/6Ezd. X 1549 Circulation 1029 Subscription TSNIIPI of the State Committee of the USSR Council of Ministers for Inventions and Discoveries 13035, Lgoskva, Zh-35, 4/5 Raushsk nab. Printing house, Sapunova Ave.

SU2028116A 1974-05-23 1974-05-23 Method for measuring impurities reducing agents in inert gases and nitrogen SU519624A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2028116A SU519624A1 (en) 1974-05-23 1974-05-23 Method for measuring impurities reducing agents in inert gases and nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2028116A SU519624A1 (en) 1974-05-23 1974-05-23 Method for measuring impurities reducing agents in inert gases and nitrogen

Publications (1)

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SU519624A1 true SU519624A1 (en) 1976-06-30

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SU2028116A SU519624A1 (en) 1974-05-23 1974-05-23 Method for measuring impurities reducing agents in inert gases and nitrogen

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2556337C1 (en) * 2014-02-28 2015-07-10 Открытое акционерное общество "Научно-исследовательский институт электронной техники" Method of measuring concentration of impurities in neutral gases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2556337C1 (en) * 2014-02-28 2015-07-10 Открытое акционерное общество "Научно-исследовательский институт электронной техники" Method of measuring concentration of impurities in neutral gases

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