Sumitomo Seika Chemicals Co., Ltd.

Bergwerksverband Gmbh

Seitetsu Kagaku Co., Ltd.

Hitosi Someda

Kazuo Haruna

Kanji Ueda

Masahiro Inoue

A process for producing a high purity oxygen from air by PSA which comprises connecting a first adsorption unit packed with carbon molecular sieve and a second adsorption unit packed with zeolite molecular sieve in series, conducting PSA operation separately in each of the units during the same operation cycle time, accumulating the desorption gas from the first adsorption unit in a receiver and then introducing the resulting desorption gas to the second unit as a raw material gas and to the first unit as a rinse gas.

Process for producing high purity oxygen gas from air

A process for recovering an oxygen enriched gas from a mixed gas mainly composed of nitrogen gas and oxygen gas by means of PSA comprising:

Growing community of inventors

Yachiyo, Japan

Hitosi Someda