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| Number | Title | Issue Date |
| 7040119 | Method and device for liquefying hydrogen Described is a process and a device for liquefying hydrogen, whereby the hydrogen to be liquefied is liquefied against one or more refrigerant (mixture) circuits and/or by means of expansion and is guided over at least one ortho-para conversion catalyst. Acco... | 05/09/2006 |
| 7025941 | Reactor system with electric heating means A reactor system for reacting a hydrocarbon or hydrocarbon derivative charging material comprises a catalyst-coated reaction chamber, to which a reaction educt stream can be fed through a reaction chamber inlet, and electric heating means. The reaction chamber inlet... | 04/11/2006 |
| 5580793 | Process and device for determining the para content of a hydrogen gas stream Process and device for determining para content X1 of a hydrogen gas stream, in which temperature T1 as well as pressure p1 of the hydrogen gas stream are measured before its entry into at least adiabatically-operated para... | 12/03/1996 |
| 5374476 | Thermal insulating system and method A passive insulating system can provide highly effective protection in the presence of transient high temperatures. The system comprises, for example, a porous body forming a multiplicity of fine cells with a material having low thermal conductivity, a th... | 12/20/1994 |
| 4663143 | Hydrogen storage materials of CeNi5-x Mnx alloys A ternary alloy comprised of cerium, nickel and manganese is characterized in having CaCu5 hexagonal crystal structure and stoichiometry. Members of a preferred class of compounds, represented by the empirical formula CeNi5-x Mn... | 05/05/1987 |
| 4474592 | Apparatus for producing liquid para-hydrogen The apparatus for preparing liquid para-hydrogen from normal hydrogen has a reservoir for the liquid para-hydrogen. A gas space of the reservoir communicates via a line with the suction side of an ejector. The ejector extracts the para-hydrogen vapor evol... | 10/02/1984 |
| 4393039 | Cooling by conversion of para to ortho-hydrogen The cooling capacity of a solid hydrogen cooling system is significantly increased by exposing vapor created during evaporation of a solid hydrogen mass to a catalyst and thereby accelerating the endothermic para-to-ortho transition of the vapor to equili... | 07/12/1983 |
| 4205056 | Process for ortho-para-hydrogen conversion A process for ortho-para-hydrogen conversion characterized by the use as a catalyst of a sulphur-containing semiconductive polymer produced by the dehalogenation of a poly(tetrahalophenylene sulphide) in the presence or absence of an organic solvent at 15... | 05/27/1980 |
| 3992167 | Low temperature refrigeration process for helium or hydrogen mixtures using mixed refrigerant A low temperature refrigeration process wherein a feed gas mixture comprising hydrogen or helium as major component and a minor component with normal boiling point above 170° K and molecular weight of at least 28 is dynamically compressed at higher tempe... | 11/16/1976 |
