Air purification system and process
AssigneePall Corporation
InventorsChesterfield F. Seibert, John D. Miller
Life of this patent
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Abstract
An air purification system and process are provided that are capable of ensuring oil-free moisture-free and particulate- and microbial contaminant-free pharmaceutical quality air, the air purification system comprising, in combination, and in the sequence indicated: (1) an oil and water coalescer filter; (2) an adsorbent or desiccant dryer; (3) an oil vapor adsorber; (4) an after-filter; and (5) a bacterial-retentive final filter.
Claims38
An air purification system capable of removing substantially quantitatively commonly occurring gaseous liquid and solid contaminants, including water and hydrocarbons, from compressed air, thereby ensuring hydrocarbon-free moisture-free and particulate-and microbial-solid-contaminant-free compressed air, ready for application in pharmaceutical uses, comprising, in combination, and in the sequence indicated:
- p1 (1) a coalescer filter separating and removing hydrocarbon droplets and water droplets;
- (2) an adsorbent dryer sorbing water vapor and hydrocarbon aerosols at least in part on particulate desiccant;
- (3) an oil vapor adsorber sorbing hydrocarbon vapor and hydrocarbon aerosols at least in part on particulate activated sorbent;
- (4) an after-filter separating and removing particulate solids larger than bacterial dimensions;
- and
- (5) a bacterial-retentive final filter separating and removing particulate solids of bacterial dimensions and any remaining hydrocarbon aerosols.
A air compressor and purification system capable of delivering hydrocarbon-free moisture-free and particulate- and microbial-solid-contaminant-free compressed air, ready for application in pharmaceutical uses, comprising, in combination, and in the sequence indicated:
- (1) an air compressor;
- (2) an after-cooler;
- (3) a compressed air receiver;
- (4) a coalescer filter separating and removing hydrocarbon droplets and water droplets;
- (5) an adsorbent dryer sorbing water vapor and hydrocarbon aerosols at least in part on particulate desiccant;
- (6) an oil vapor adsorber sorbing hydrocarbon vapor and hydrocarbon aerosols at least in part on particulate activated sorbent;
- (7) an after-filter separating and removing particulate solids larger than bacterial dimensions;
- and
- (8) a bacterial-retentive final filter separating and removing particulate solids of bacterial dimensions and any remaining hydrocarbon aerosols.
Dependencies are inferred from the claim text.