Compounds of formula CH2Y—CH(COOR1)—O—CF2CF2—SO2F, usable in the synthesis of the fluorosulphonic vinylether —CF2CF—O—CF2CF2—SO2F.

 
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< In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content

< Fuel gasification system

> Gas storage and dispensing system with monolithic carbon adsorbent

> Process for unidirectional infiltration of preform with molten resin or pitch
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