(JP95047122-B2)      A thermocyclic process having an exothermic portion and an endothermic portion is improved by conducting the process in thermal exchange relation with a sufficient amt. of a transition thermal adsorption/release material (TARM) to operate the process substantially isothermally at about the transition temp. of the TARM using the latent heat of the transition during the endothermic and exothermic portions of the process. The transition is a phase change e.g. solid/liq., liq./gas or solid/gas, or a dehydration/hydration.    USE/ADVANTAGE -   Reducing or eliminating temp. change increases the capacity of the process which in general uses a bed of chemicals or adsorbent or a liq. absorbent. Applications include pressure swing methods for (a) storage and release of gases e.g. storage of methane or natural gas on activated carbon on a vehicle for use as fuel and (b) removal of carbon dioxide from natural gas with activated carbon at ca. 100 deg.F. Chemical processes include (c) cyclic oxidn./redn. of a metal oxide, e.g. Mn or Ba oxide at 1400-1500 deg.F, to produce oxygen from air and (d) an intermittent flame-on/flame-off process e.g. combustion of natural gas with low NOx emission. Liq. absorbent processes include (e) removal of acid gases, e.g. CO2, H2S and COS from refinery or fuel gases with selected solvents, carbonate systems and amine systems (monoethanolamine, diglycol amine or triethanolamine).    (DE9018175-U1)      A thermo-cyclic process having an exothermic portion and an endothermic portion is improved by conducting the process in thermal exchange relation with a sufficient amt. of a transition thermal adsorption/release material (TARM) to operate the process substantially isothermally at about the transition temp. of the TARM, utilizing the latent heat of the transition during the endothermic and exothermic portions of the process. The transition is e.g. a phase change, e.g. solid/liquid, liquid/gas or solid/gas, or a dehydration/hydration.    USE/ADVANTAGE -   Reducing or eliminating temp. change increases the capacity of the process, which in general utilizes a bed of chemicals or adsorbent, or a liquid absorbent. Applications include pressure swing methods for (a) storage and release of gases, e.g. storage of methane or natural gas on activated carbon on a vehicle for use as fuel and (b) removal of carbon dioxide from natural gas with activated carbon at ca. 100 deg.F. Chemical processes include (c) cyclic oxidation/reduction of a metal oxide, e.g. Mn or Ba oxide at 1400-1500 deg.F, to produce oxygen from air and (d) an intermittent flame-on/flame-off process, e.g. combustion of natural gas with low NOx emission. Liquid absorbent processes include (e) removal of acid gases, e.g. CO2, H2S and COS from refinery or fuel gases with selected solvents, carbonate systems and amine systems (monoethanolamine, diglycol amine or triethanolamine).