Gas separation: processes – Filtering – Plural separate media
Patent
1994-06-08
1996-04-09
Spitzer, Robert
Gas separation: processes
Filtering
Plural separate media
95212, 95214, 55233, 55259, B01D 2956, B01D 4612
Patent
active
055057675
ABSTRACT:
Sulfuric acid fumes generated in a manufacturing process are captured at the point of generation and transported at a flow rate of 3500 feet per minute to a filtration unit having a primary two-stage separator and a final three-stage separator. The primary separator is filled with spherical packing material, preferably of polypropylene, and the final separator consists of a composite pad of high efficiency filamentary packing material, preferably of polypropylene with increasingly smaller voids. Sulfuric acid is recovered from both separators for reuse and purified air is exhausted from the system. The removal efficiency exceeds 99%.
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Lieberstein Eugene
Meller Michael N.
Spitzer Robert
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