Abstract: Systems, devices, computer-implemented methods, and tangible non-transitory computer-readable media for generating reports from one or more databases that store disparate datasets are provided. Specifically, the proposed systems enable the intelligent generation of reports from multiple datasets by automatically determining a proposed set of join configurations for combination of the multiple datasets. Unique identifiers can be assigned to a portion of the combined dataset and the combined dataset can be expanded for performing an aggregation operation associated with the portion of the combined dataset by referencing the one or more unique identifiers. Reports can be generated based on the combined dataset and the aggregation operation.

Abstract: The invention relates to an integrated process for continuous production of liquid hydrogen, comprising (a) producing gaseous hydrogen by electrolysis; and (b) liquefying said gaseous hydrogen in a hydrogen liquefaction unit, which liquefaction unit is powered by energy essentially from renewable sources; and, (c) when additional power is needed, using electrical energy generated in a process in which electrical energy and hydrogen are co-generated by an integrated electrolysis process comprising: (d) electrolysing a metal salt or mixture of metal salts and water into the corresponding metal or metals, acid or acids, and oxygen (electricity storage phase), and (e) producing gaseous hydrogen and recovering electricity in a regeneration reaction of the metal (s) and acid(s) of step (d) (regeneration phase); wherein at least part of the gaseous hydrogen generated in step (e) is used in step (b) of the process.

Abstract: The present invention provides a process for dispensing gaseous hydrogen, comprising the steps of: a) providing a first vessel comprising a first quantity of gaseous hydrogen at a pressure in the range of from 350 to 1000 bar absolute and a temperature in the range of from ?20° C. to 50° C.; b) passing in the range of from 40 to 100 wt %, based on the weight of the first quantity, of the first quantity gaseous hydrogen from the first vessel through an isenthalpic valve to obtain a cold second quantity of gaseous hydrogen having a temperature in the range of from ?100 to ?20° C.; and c) dispensing the cold second quantity of gaseous hydrogen to a second vessel. In a further aspect the invention provides a system for dispensing gaseous hydrogen.

Abstract: The invention provides a hydrogen dispensing system comprising: a feed vessel for storing liquid hydrogen having an inlet and an outlet; a flash drum having an inlet and an outlet; a dispenser for dispensing gaseous hydrogen at a pressure of greater than 300 bar, having an inlet and an outlet wherein the feed vessel outlet is in fluid communication with the flash drum inlet, the flash drum outlet is in fluid communication with the dispenser inlet and there is no compression apparatus between the feed vessel outlet and the dispenser outlet. The invention also provides a method of providing gaseous hydrogen to a vehicle.

Abstract: The invention provides a hydrogen dispensing system comprising: a feed vessel for storing liquid hydrogen having an inlet and an outlet; a flash drum having an inlet and an outlet; a dispenser for dispensing gaseous hydrogen at a pressure of greater than 300 bar, having an inlet and an outlet wherein the feed vessel outlet is in fluid communication with the flash drum inlet, the flash drum outlet is in fluid communication with the dispenser inlet and there is no compression apparatus between the feed vessel outlet and the dispenser outlet. The invention also provides a method of providing gaseous hydrogen to a vehicle.

Abstract: The invention provides a hydrogen dispensing system comprising: a feed vessel for storing liquid hydrogen having an inlet and an outlet; a flash drum having an inlet and an outlet; a dispenser for dispensing gaseous hydrogen at a pressure of greater than 300 bar, having an inlet and an outlet wherein the feed vessel outlet is in fluid communication with the flash drum inlet, the flash drum outlet is in fluid communication with the dispenser inlet and there is no compression apparatus between the feed vessel outlet and the dispenser outlet. The invention also provides a method of providing gaseous hydrogen to a vehicle.

Abstract: A process for producing hydrogen and power comprises subjecting a gaseous hydrocarbon feedstock to an endothermic steam reforming reaction by contacting the feedstock, in a reaction zone, in the presence of steam, with catalyst to obtain a mixture comprising hydrogen and carbon monoxide; recovering hydrogen from the mixture; feeding fuel and oxidant to a turbine system comprising a compressor, combustion chamber and expansion turbine, wherein the compressor is coupled to the turbine, the oxidant is compressed in the compressor to obtain compressed oxidant, and the fuel is combusted with the compressed oxidant in the chamber to obtain a stream of combusted gas; feeding at least part of the stream to the turbine to generate power and to obtain a turbine flue gas; and providing heat for the reforming reaction from the combusted gas and/or the flue gas; and liquefaction of the recovered hydrogen by subjecting it to a liquefaction cycle.

Abstract: The present invention provides a process for dispensing gaseous hydrogen, comprising the steps of: a) providing a first vessel comprising a first quantity of gaseous hydrogen at a pressure in the range of from 350 to 1000 bar absolute and a temperature in the range of from ?20° C. to 50° C.; b) passing in the range of from 40 to 100 wt %, based on the weight of the first quantity, of the first quantity gaseous hydrogen from the first vessel through an isenthalpic valve to obtain a cold second quantity of gaseous hydrogen having a temperature in the range of from ?100 to ?20° C.; and c) dispensing the cold second quantity of gaseous hydrogen to a second vessel. In a further aspect the invention provides a system for dispensing gaseous hydrogen.

Abstract: The present invention provides a method for producing hydrogen and electricity utilizing a system suitable for producing liquid hydrogen and/or electricity. The system includes a gas reforming unit for receiving and reforming a natural gas feed to produce a hydrogen-comprising gas; an electricity generation unit for receiving and converting hydrogen from the gas reforming unit to generate electricity; and a hydrogen liquefaction unit for receiving and liquefying hydrogen from the gas reforming unit. The hydrogen liquefaction unit is powered by at least part of the electricity produced by the electricity generation unit. During a first period of operation, natural gas is provided to the gas reforming unit and the system is operated to export liquid hydrogen, and during a second period of operation, natural gas is provided to the gas reforming unit and the system is operated to export electricity.

Abstract: A bipolar plate (30) for use in a fuel cell stack (10) includes one or more first metal layers (40a) having a tendency to grow an electrically passive layer in the presence of a fuel cell reactant gas and one or more second metal layers (40b) directly adjacent the one or more first metal layers (40a). The second metal layer has a tendency to resist growing any oxide layer in the presence of the fuel cell reactant gas to maintain a threshold electrical conductivity. The second metal layer also has a section for contacting an electrode (12, 14) and providing an electrically conductive path between the electrode (12, 14) and the first metal layer.

Abstract: This invention describes a process for producing hydrogen comprising: introducing a feedstream comprising a bio-based feedstock and water into a reformer and supplying heat to the reformer; contacting the feedstream with a steam reforming catalyst disposed within the reformer to form a reformate comprising hydrogen and carbon monoxide; recovering the reformate from the reformer; contacting the reformate with steam in the presence of a water-gas shift catalyst disposed within a water-gas shift reaction zone to form a water-gas shift product stream comprising hydrogen, and the water-gas shift product stream comprises hydrogen in a greater quantity than in the reformate; heating the feedstream by heat exchange contact of the feedstream with a product stream selected from the reformate, the water-gas shift product stream or combinations thereof to transfer heat from the product stream to the feedstream prior to introducing the feedstream into the reformer.

Abstract: A fuel cell stack (31) includes a plurality of fuel cells (9) each having an electrolyte such as a PEM (10), anode and cathode catalyst layers (13, 14), anode and cathode gas diffusion layers (16, 17), and water transport plates (21, 28) adjacent the gas diffusion layers. The cathode diffusion layer of cells near the cathode end (36) of the stack have a high water permeability, such as greater than 3×10?4 g/(Pa s m) at about 80° C. and about 1 atmosphere, whereas the cathode gas diffusion layer in cells near the anode end (35) have water vapor permeance greater than 3×10?4 g/(Pa s m) at about 80° C. and about 1 atmosphere. In one embodiment, the anode gas diffusion layer of cells near the anode end (35) of the stack have a higher liquid water permeability than the anode gas diffusion layer in cells near the cathode end; a second embodiment reverses that relationship.

Abstract: The invention provides a hydrogen dispensing system comprising: a feed vessel for storing liquid hydrogen having an inlet and an outlet; a flash drum having an inlet and an outlet; a dispenser for dispensing gaseous hydrogen at a pressure of greater than 300 bar, having an inlet and an outlet wherein the feed vessel outlet is in fluid communication with the flash drum inlet, the flash drum outlet is in fluid communication with the dispenser inlet and there is no compression apparatus between the feed vessel outlet and the dispenser outlet. The invention also provides a method of providing gaseous hydrogen to a vehicle.

Abstract: A bipolar plate (30, 30?) for use in a fuel cell (12, 14) includes a first metal layer (40a) having a first corrosion potential and a second metal layer (40b) that tends to grow an oxide layer (42, 42?) during operation of the fuel cell (12, 14). The second metal layer (40b) includes a second corrosion potential such that there is a corrosion potential gradient between the first metal layer (40a) and the second metal layer (40b) that resists growth of the oxide layer (42, 42?).

Abstract: A bipolar plate (30) for use in a fuel cell stack (10) includes one or more first metal layers (40a) having a tendency to grow an electrically passive layer in the presence of a fuel cell reactant gas and one or more second metal layers (40b) directly adjacent the one or more first metal layers (40a). The second metal layer has a tendency to resist growing any oxide layer in the presence of the fuel cell reactant gas to maintain a threshold electrical conductivity. The second metal layer also has a section for contacting an electrode (12, 14) and providing an electrically conductive path between the electrode (12, 14) and the first metal layer.

Abstract: An article for use in a fuel cell stack (10) includes a bipolar plate (30) that includes a metal alloy having a nominal composition of about 40 wt % to 60 wt % nickel, about 12 wt % to 25 wt % chromium, about 10 wt % to 35 wt % iron, and about 5 wt % to 10 wt % of at least one element from aluminum, manganese, molybdenum, niobium, cobalt, vanadium, and combinations thereof.

Abstract: A fuel processing system (FPS) (110) is provided for a fuel cell power plant (115) having a fuel cell stack assembly (CSA) (56). A water gas shift (WGS) reaction section (12, 120) of the FPS (110) reduces the concentration of carbon monoxide (CO) in the supplied hydrocarbon reformate, and a preferred oxidation (PROX) section (40) further reduces the CO concentration to an acceptable level. The WGS section (12, 120) includes a reactor (124) with a high activity catalyst for reducing the reformate Co concentration to a relatively low level, e.g., 2,000 ppmv or less, thereby relatively reducing the structural volume of the FPS (110). The high activity catalyst is active at temperatures as low as 250° C., and may be a noble-metal-on-ceria catalyst of Pt and Re on a nanocrystaline, cerium oxide-based support. Then only a low temperature PROX reactor (46) is required for preferential oxidation in the FPS (110).

Abstract: A fuel processing system (FPS) (110) is provided for a fuel cell power plant (115) havinf a fuel cell stack assembly (CSA0 (56). The FPS (110) includes a water gas shift (WGS) reaction section (12, 120) for receiving hydrocarbon reformate containing carbon monoxide (CO) and reducing the concentration of CO in the reformate via the shift reaction, and a preferred oxidation (PROX) section (40) for further reducing the concentration of CO to a level acceptable for operating the CSA (56). The FPS (1110) is improved by the WGS section (12, 120) including a reactor (124) with a high activity catalyst for reducing the reformate CO concentration to a relatively low level, thereby relatively reducing the structural volume of the FPS (110). The high activity catalyst is active at temperatures as low as 250° C., and may be a noble-metal-on-ceria catalyst of Pt and Re on a nanocrystaline, cerium oxide-based support.