Gas separation: processes – Solid sorption – Organic gas or liquid particle sorbed
Patent
1992-08-28
1994-02-22
Spitzer, Robert
Gas separation: processes
Solid sorption
Organic gas or liquid particle sorbed
95146, 95900, B01D 5304
Patent
active
052883078
ABSTRACT:
Hydrocarbon emissions from fuel reservoirs, particularly those associated with motor vehicles, are abated by contacting a vented hydrocarbon fuel vapor stream from the reservoirs with a polymeric adsorbent derived from a macroporous or macroreticular copolymer of at least one monovinylidene aromatic monomer and a crosslinking monomer. The macroporous copolymers are converted into suitable adsorbents by post-polymerization crosslinking in a swollen state in the presence of a Friedel-Crafts catalyst. The resulting adsorbent has improved hydrocarbon adsorption capacity relative to conventional activated carbon adsorbents.
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Demopolis Tom N.
Goltz H. Robert
Spitzer Robert
The Dow Chemical Company
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