B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
23/285, 252/91
B01J 23/42 (2006.01) B01D 59/32 (2006.01) C01B 5/02 (2006.01)
Patent
CA 1063587
ABSTRACT OF DISCLOSURE A process and catalyst for the exchange of hydrogen isotopes between streams of gaseous hydrogen and liquid water is described, wherein the streams are brought into contact with one another and a catalyst assembly at a temperature in the range 273 to 573K, the catalyst assembly comprises an inherently hydrophobic, porous, polytetrafluoroethylene matrix and partially platini- zed carbon particles in the weight ratio of 0.5:1 to 6:1 of polytetrafluoroethylene to partially platinized high surface area carbon particles. The inherently hydrophobic, porous polytetrafluoroethylene matrix allows the catalytically acti- ve metal to catalyze the hydrogen isotope exchange reaction between hydrogen gas and water vapour in the presence of li- quid water while retarding loss of activity of the catalyti- cally active metal by contact of the metal catalyst with li- quid water. This catalyzed chemical isotope exchange proceeds simultaneously with isotope exchange from water vapour to li- quid water by a non-catalyzed, physical evaporation and con- densation exchange reaction. The efficient coupling of the two isotopic transfer steps which results in a rapid overall isotopic exchange between hydrogen and liquid water without a pronounced loss of activity of the catalyst is dependent upon the weight ratio of the catalytically active platinized carbon to the polytetrafluoroethylene matrix being in the range 0.5:1 to 6:1 and for best results preferably in the range 1:1 to 3:1.
255751
Butler John P.
Den Hartog James
Goodale John W.
Molson Fred W.r.
Rolston John H.
LandOfFree
Process for the exchange of hydrogen isotopes between... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the exchange of hydrogen isotopes between..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the exchange of hydrogen isotopes between... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-802484