Invention Grant
- Patent Title: Production and installation for the production of gaseous nitrogen at several different purities
- Patent Title (中): 生产和安装用于生产几种不同纯度的气态氮
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Application No.: US81813Application Date: 1993-06-22
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Publication No.: US5333463APublication Date: 1994-08-02
- Inventor: Catherine Garnier , Francois Venet
- Applicant: Catherine Garnier , Francois Venet
- Applicant Address: FRX Paris
- Assignee: L'Air Liquide, Societe Anonyme Pour l'Etude et L'Exploitation des Procedes Georges Claude
- Current Assignee: L'Air Liquide, Societe Anonyme Pour l'Etude et L'Exploitation des Procedes Georges Claude
- Current Assignee Address: FRX Paris
- Main IPC: C01B21/04
- IPC: C01B21/04 ; F25J3/04 ; F25J3/00 ; F25J3/02
Abstract:
A column for production of nitrogen by the distillation of air, adapted to produce high purity nitrogen at its head, is associated with an external source of medium purity liquid nitrogen that is fitted with a device for the liquid phase adsorption of carbon monoxide, and with a reservoir for the storage of high purity liquid nitrogen. The column produces medium purity gaseous nitrogen and high purity gaseous nitrogen by direct withdrawals, optionally supplemented by vaporization of liquid nitrogen.
Public/Granted literature
- USD422314S Reverse vending machine Public/Granted day:2000-04-04
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