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Heat exchangers, hydrogen gas compressors, hydrogen gas storage devices, hydrogen gas purifiers and metal hydride air conditioners utilizing a flow of a hydrogen gas stream which is absorbed and desorbed by a metal hydride causes disproportionation and "poisoning" of the metal hydrides by introducti

Heat exchangers, hydrogen gas compressors, hydrogen gas storage devices, hydrogen gas purifiers and metal hydride air conditioners utilizing a flow of a hydrogen gas stream which is absorbed and desorbed by a metal hydride causes disproportionation and "poisoning" of the metal hydrides by introduction of impurities such as water vapor, oxygen and carbon monoxide. Use of a noble metal in powder form, when introduced in the metal hydride particles has been found to act as a catalyst and to delay absorption of the impurities in the metal hydride, and further permits the more efficient and longer use of such devices by inhibiting the undesirable disproportionation and poisoning. In another embodiment, a vent is provided in the initial stage of a hydrogen compressor to vent out the impurities before these result in decreasing efficiency of the devices due to disproportionation, poisoning and increased vapor pressure.

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Heat exchangers, hydrogen gas compressors, hydrogen gas storage devices, hydrogen gas purifiers and metal hydride air conditioners utilizing a flow of a hydrogen gas stream which is absorbed and desorbed by a metal hydride causes disproportionation and "poisoning" of the metal hydrides by introducti

Heat exchangers, hydrogen gas compressors, hydrogen gas storage devices, hydrogen gas purifiers and metal hydride air conditioners utilizing a flow of a hydrogen gas stream which is absorbed and desorbed by a metal hydride causes disproportionation and "poisoning" of the metal hydrides by introduction of impurities such as water vapor, oxygen and carbon monoxide. Use of a noble metal in powder form, when introduced in the metal hydride particles has been found to act as a catalyst and to delay absorption of the impurities in the metal hydride, and further permits the more efficient and longer use of such devices by inhibiting the undesirable disproportionation and poisoning. In another embodiment, a vent is provided in the initial stage of a hydrogen compressor to vent out the impurities before these result in decreasing efficiency of the devices due to disproportionation, poisoning and increased vapor pressure. Advertisements and Articles written by WMS Gaming, Inc., published in 1998. Keep Your Hat On Advertisement written by Aristocrat, published in 2001. Let's Make a Deal written by geocities.com (10 pages), printed on Mar. 21, 2001. Let's Make a Deal written by fortunecity.com (4 pages), printed on Mar. 21, 2001. Let's Make a Deal written by Illinoislottery.com (1 page), printed on Mar. 21, 2001. Let's Make a Deal geocities.com (2 pages), printed on Mar. 16, 2001. Let's Make A Deal Advertisement written by Shuffle Master and IGT, published in 2001. Let's Make a Deal Game Advertisement written by Bally Gaming Systems, published in 1999. Little Green Men Advertisement and Article written by IGT, Strictly Slots, published in 2000. MegaJackpots Advertisement written by IGT, published in 1998. Money Grab Article written by Strictly Slots, published in Apr. 2001. Money in the Bank Advertisement written by Strictly Slots Konami, published in 2001. Monopoly Advertisements and Articles written by WMS Gaming, Inc., Strictly Slots, published in 1998, 1999, 2000. Monopoly Party Train Article written by Strictly Slots, published in 2002. Neon Nights written by IGT, published in 2000. On the Money Article written by Strictly Slots, Casino Data Systems, published in Dec. 2000. Polly & Roger Advertisement written by VLC, Inc., published in 2000. Price is Right "Cliff Hangers" Description written by www.geocities.com; members.aol.com (web site), printed Mar. 21, 2001. Price is Right "Showcases" Description written by schuminweb.com (web site), printed Mar. 16, 2001. Psycho Cash Beast Club (including knockouts) written by Barcrest, published prior to 1998. Richard Petty Advertisement written by IGT, published in 2000. South Park--Dodgeball Advertisement written by IGT, published in 2000. Spell Binder Advertisement written by IGT, published in 2000. Sphinx Advertisement written by Atronic Casino Technology, Ltd., published in 1997. Take Your Pick Article written by Strictly Slots, published in Mar. 2001. Take Your Pick Advertisement written by IGT/Anchor Gaming, published in 1999. Texas Tea Advertisement written by IGT, published in 2000. The Deals of Let's Make a Deal written by fortunecity.com (2 pages), printed on Mar. 16, 2001. The Official Let's Make a Deal Website written by Bally Gaming System Website, printed on Mar. 16, 2001. Top Cat Advertisement written by WMS Gaming, Inc., published in 2000. Top Dollar Game Advertisement written by IGT, published in 1998. Totem Pole Advertisement written by IGT, published in 1997. Treasure Wheel/Treasure Tunnel Advertisement written by Sigma Game, Inc., published prior to 2000. Wheel of Fortune Advertisement written by IGT, published in 1998. Wheel of Fortune Advertisement written by IGT, published in 1999. Wheel Poker Article written by Strictly Slots (Anchor Games), published in Nov. 2000. Winning Streak Web Site Description written by WMS Gaming Inc. (web site), printed on Mar. 21, 2001. X Factor Advertisement and Website Page written by WMS Gaming, Inc., published in 1998.