A kind of realization method of reaction kinetics detection device of hydrogen-eliminating catalytic plate

Abstract

The invention discloses a reaction kinetics detecting device of a dehydrogenation and catalyzation board. The reaction kinetics detecting device comprises a hydrogen source, a gas distribution tank, a reaction vessel, a hydrogen concentration meter, a gas circulating pump and a data collecting and processing device, wherein a closed loop is formed as the gas circulating pump, the gas distribution tank, the reaction vessel and the hydrogen concentration meter are in end-to-end connection; the hydrogen source is used for supplying hydrogen; the gas distribution tank is used for mixing the hydrogen with air therein and obtaining hydrogen concentration needed for measurement; the reaction vessel is used for placing a catalyzation board and providing an environment for a hydrogen-oxygen catalytic reaction; the hydrogen concentration meter is used for quantitatively measuring the hydrogen concentration in the closed loop; the gas circulating pump is used for controlling gas circulation in the closed loop; the data collecting and processing unit is used for collecting data of pressures of the gas distribution tank before and after the hydrogen is added therein, temperature of a catalyst in the closed loop and hydrogen reaction concentration. The reaction kinetics detecting device disclosed by the invention has the advantages that the design is reasonable, the operation is simple, is safe and reliable, and accurate and quick detection on activation energy and pre-exponential factors of a dehydrogenating catalyst of a nuclear power station can be realized.

Description

technical field [0001] The invention relates to the field of security detection of nuclear power plants, in particular to a method for realizing a reaction kinetics detection device of a hydrogen elimination catalytic plate. Background technique [0002] After the Fukushima nuclear accident in Japan, the international and domestic attention to the risk of hydrogen explosion in the containment of nuclear power plants has increased, and it is required that dozens of passive hydrogen recombiners (PARs) must be distributed in the containment of the second-generation and third-generation nuclear power plants. , so as to quickly consume the hydrogen concentration in the accident state, thereby reducing or avoiding the danger of hydrogen explosion in design basis accidents and severe accidents. The core component of this passive hydrogen recombiner is a catalytic plate with a catalyst on its surface. Its working principle can be summarized as follows: [0003] In an accident state...

AI Technical Summary

Problems solved by technology

However, for gas reactions, the reaction speed is too fast, the reaction fluctuates greatly, and the influencing factors are also very complicated. Therefore, the measurement of the activation energy of gas reactions has always been one of the main problems that need to be solved in this field.

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