TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The strong acid functionality is provided by sulfonic acid groups. The adsorbent is: mineral based adsorbents (comprising zeolites, clays, or silica gels) or organic based adsorbents; a silica gel with a sulfonic acid functionality; or a polymeric strong cation exchange resin.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The adsorbent having strong acid functionality is housed in at least two reactors, and the reactors are adapted to receive the fluoroalkane-containing hydrocarbon stream in series. The system further includes, optionally, a supply of water, capable of being introduced to the adsorbent to wash the adsorbent, and a supply of an alcohol capable of being introduced to the adsorbent to wash the adsorbent.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The process further comprises producing a hydrocarbon product stream having a fluoroalkane content by weight percentage i.e. less than 10% of the fluoroalkane content by weight percentage of the fluoroalkane-containing hydrocarbon stream. The process further comprises conditioning the adsorbent having strong acid functionality prior to contact with the fluoroalkane-containing hydrocarbon stream, where the conditioning includes (a) providing the adsorbent having strong acid functionality for conditioning, (b) optionally, applying water to the adsorbent, (c) applying an alcohol to the adsorbent, and (d) drying the adsorbent at an elevated temperature. In the process, water is applied to the adsorbent prior to the application of the alcohol. The adsorbent is dried at a temperature of 20-80 degrees C, preferably 60 degrees C. Preferred Components: The fluoroalkane-containing hydrocarbon stream includes 1-3 wt.% of 3-5C fluoroalkanes. The adsorbent is housed in at least two reactors, and the fluoroalkane-containing hydrocarbon stream is introduced to the reactors in series. The alcohol is isopropyl alcohol, methanol, ethanol, n-propanol, n-butanol, isobutanol, sec-butanol, or tert-butanol.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The polymeric strong cation exchange resin is a styrene/divinylbenzene copolymer resin having sulfonic acid functionality.