System and method for testing catalyst dehydrogenation performance

Abstract

The invention discloses a system and a method for testing the catalyst dehydrogenation performance, and belongs to the field of catalytic reaction engineering. The system comprises a hydrogen gas cylinder, a pressure reducing valve, a mass flowmeter, a check valve, an air compressor, a buffer tank, a first electric control valve, a first vortex precession flowmeter, a mixed gas distribution pipe, a catalytic reactor, a second electric control valve, a second vortex precession flowmeter, a first pressure transmitter, a first thermoelectric couple, a first hygrometer, a second pressure transmitter, a second thermoelectric couple, a second hygrometer and a data acquisition and control system. The method is characterized in that the variation of temperatures, pressures, hydrogen contents and relative humidity at an inlet and an outlet of the catalytic reactor along with time is recorded through the data acquisition and control system. The system and the method, disclosed by the invention, can simulate the design basis accident state of a nuclear power station containment accurately.

Description

technical field [0001] The invention relates to a test system and a test method for the hydrogen elimination performance of a catalyst, belonging to the field of catalytic reaction engineering. Background technique [0002] At present, most of the devices on the market for performance testing of hydrogen elimination catalysts are used for performance testing under high temperature and normal pressure conditions. Most of the catalytic beds used are fixed packed beds in the form of a single circular tube filled with catalyst in the middle. The mixed gas of hydrogen and air (referred to as atmosphere) is introduced from the bottom of the catalytic bed, and discharged from the top after passing through the catalyst filling section. The problem is that the resistance of the air flow passing through the catalyst is large, and the humidity of the atmosphere passing through should not be too high, otherwise it will affect the normal use of the hydrogen analyzer. The hydrogen elimin...

AI Technical Summary

Problems solved by technology

Therefore, none of the existing experimental devices can meet the performance test of hydrogen elimination catalysts used in nuclear power plants.

In addition, in the prior art, the mixed gas is prepared as the gas source for experiments. In order to achieve uniform gas mixing, most of them need to install fans or stirring devices inside the pressure vessel, so the requirements for the container are high, and the energy consumption is also high.

Images