Zeolite is with three-dimensional structure which forms uniformly sized pores. As the pores preferentially absorb small molecules and exclude large molecules, Zeolite acts as molecular sieves.
Zeolite molecular sieve will absorb nitrogen and separate high purity oxygen under high pressure; it will release nitrogen at low pressure. There are two adsorption towers for nitrogen adsorption and release. Once Zeolite molecular sieve in tower A absorbs enough nitrogen, tower A will stop the separation process and begin to release nitrogen into the nitrogen storage tank. Tower B will begin to separate the oxygen. Two towers will separate oxygen alternately.
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