Principle of Nitrogen Purification Device
The nitrogen purification device uses ordinary nitrogen, which is produced by cryogenic method, pressure swing adsorption and membrane separation, as raw material. After deoxygenation, condensation, adsorption drying and filtration, the impurity oxygen, carbon dioxide, water and dust in nitrogen are removed to obtain high purity nitrogen.
Oxygen is the most abundant and harmful component in nitrogen. The methods of deoxygenation are as follows : 1 ) Deoxygenation by carbon-oxygen reaction chemical method : The deoxidizer is used as both a catalyst and a reactant to participate in the reaction. The reaction is mild, the process is simple, and the operation is stable. 2 ) Deoxygenation by hydrogen-oxygen reaction chemical method : adding equal proportion of hydrogen in nitrogen, under the action of deoxidizer, two methods of deoxygenation at room temperature.
The oxygen removal equation of carbon-oxygen reaction method is : C + O2 → CO2. The generated carbon dioxide is a polar molecule that is easily removed by the adsorbent. The deoxygenated gas passes through the adsorption tower equipped with the adsorbent to remove carbon dioxide, water and other impurities to obtain high-purity nitrogen. The deoxidation equation of the hydrogen-oxygen reaction method is : 2H2 + O2 → 2H2O, and the generated water is removed by the desiccant to obtain high-purity nitrogen. The two methods have their own advantages. The hydrogen-oxygen method has a mild reaction and can be deoxygenated at room temperature. The disadvantage is that hydrogen needs to be added, and there is a safety hazard. The deoxygenation process cannot be completed without a hydrogen source. The carbon-oxygen method does not need to be added to other media, has no safety and hidden dangers, and needs to complete the deoxidization process at 280 degrees.
The above is organized and released by the nitrogen purification device-Suzhou Jiarui gas. Suzhou Jiarui Gas System Co., Ltd.is a science and technology company specializing in the research and development of gas separation and purification technology. The company has a science and technology development building, gas separation device assembly plant. Provide users with pressure swing adsorption hydrogen production, nitrogen production, oxygen production, purification or removal of carbon dioxide and other services, looking forward to win-win cooperation with you.
