Abstract: Adsorbent material for use in pressure swing adsorption (PSA) related processing can provide improved purification processing with reduced temperature differentials between adsorption and desorption processing of the bed of adsorbent material. Embodiments can be configured so that adsorbent material has occluded micropores or macropores. The occlusion of the micropores or macropores can be up to 42% of the micropores the adsorbent material in some embodiments. At least one metal acetate can be utilized for the occlusion of the micropores or macropores. Utilization of the adsorbent material having occluded micropores or macropores was surprisingly found to increase the yield for purification of a product gas in spite of the occlusion of the micropores or macropores.

Abstract: Disclosed are novel processes, based on precipitation, settling, and filtration for the removal of critical impurities selected from dissolved transition metals, inorganic anions and dissolved organic compounds, from highly concentrated hydroxide solutions used as electrolytes in alkaline water electrolysis (AEW) to produce hydrogen. The processes comprise adding to the solutions at least one precipitation additive selected from water-soluble salts of alkaline earth metals; nickel (II) hydroxide; and hydroxides or oxides of alkaline earth metals, provided that the surface area of the hydroxides/oxides is more than 5 m2/g, to form at least one inorganic compound (or complex) as a precipitate which is removed from the solution.

Abstract: Residual ammonia is removed effectively from ammonia cracked gas in a hydrogen PSA system using a non-zeolitic adsorbent such as activated carbon, activated alumina or silica gel.

Abstract: A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified by first removing oxygen using a copper oxide and/or manganese oxide getter, then using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The oxygen getter prevents an explosive mixture of hydrogen and oxygen from occurring in the CTSA during regeneration.

Abstract: The present invention relates to lithium secondary batteries comprising a negative electrode, a positive electrode, a separator and a lithium-based electrolyte carried in an aprotic solvent, and to the electrolyte compositions. The electrolyte comprises a lithium salt of the formula: Li2B12FxH12-x-yZy where x+y is from 3 to 12, and x and y are independently from 0 to 12, and Z comprises at least one of Cl and Br.

Abstract: A process is described for the synthesis of an aryl sulfur pentafluoride compound. In one embodiment of the present invention, there is provided a process for preparing an aryl sulfurpentafluoride compound comprising: combining an at least one aryl sulfur compound with a fluorinating agent to at least partially react and form an intermediate aryl sulfurtrifluoride product; and exposing the intermediate aryl sulfurtrifluoride product to the fluorinating agent and optionally a fluoride source to at least partially react and form the aryl sulfurpentafluoride compound.