| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423658300 | By reaction of impurities in a stream containing elemental hydrogen | 6 |
| 20090263316 | HIGH PURITY, HIGH PRESSURE HYDROGEN PRODUCTION WITH IN-SITU CO2 AND SULFUR CAPTURE IN A SINGLE STAGE REACTOR - A process for producing hydrogen, comprising the steps of: (a) gasifying a fuel into a raw synthesis gas comprising CO, hydrogen, steam and sulfur and halide contaminants in the form of H | 10-22-2009 |
| 20110033373 | MULTI-FLUIDIZED BED WATER-GAS SHIFT REACTOR USING SYNGAS AND PRODUCTION OF HYDROGEN USING THE SAME - A multi-fluidized bed water-gas shift reactor wherein a specific syngas containing a high concentration of carbon monoxide produced by gasification of a heavy carbon source such as coal, vacuum residue, glycerin, etc., is in contact with water under a catalyst so as to produce hydrogen and, in addition, a method for production of hydrogen using the foregoing reactor are disclosed. In other words, the disclosure describes a multi-fluidized bed water-gas shift reactor containing low and high temperature catalysts as well as steam and a method for production of hydrogen using the same, wherein 30 to 70% carbon monoxide in the syngas as a gas mixture containing hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, hydrogen monoxide, and the like, which are generated through partial oxidation and vapor gasification at 900 to 1,600° C., may be favorably converted into hydrogen without mixing both of the catalysts. | 02-10-2011 |
| 20130315818 | HIGH PRESSURE HYDROGEN GAS COMPRESSOR - A gas compressor comprises a source of high pressure fluid and a pressure vessel having a gas inlet for the gas to be compressed, a gas outlet for the compressed gas and a fluid inlet for the high pressure fluid. The compressor is arranged to introduce the high pressure fluid into the pressure vessel via the fluid inlet whereby to compress a volume of gas in the pressure vessel. | 11-28-2013 |
| 20140170061 | STAGED MEMBRANE PROCESS FOR HIGH PRESSURE HYDROGEN PRODUCTION - “A hydrogen purification process is provided. This process includes separating hydrogen from a hydrogen containing stream in at least two sequential palladium membrane purification zones, wherein each purification zone has a permeate side, wherein the permeate side pressure of purification zones are not the same.” | 06-19-2014 |
| 20140271451 | METHOD FOR REMOVING SULFUR COMPOUNDS FROM SOUR GAS STREAMS AND HYDROGEN RICH STREAMS - The present invention relates to a process for purifying a gas stream comprising hydrogen sulfide or mercaptans, or mixtures thereof. The gas stream can be a sour natural gas stream, a landfill gas or an industrial gas stream. The process comprises contacting the gas stream at effective absorption conditions including an absorption temperature less than about 300° C. with a solid absorbent effective to absorb the hydrogen sulfide, or mercaptans or mixtures thereof to provide a purified gas stream. Method is useful for treating gas streams having up to 90 vol-% hydrogen sulfide, or treating highly pure hydrogen streams. The invention is useful as a guard bed for fuel cells and sensitive laboratory instruments. The invention can also be employed to treat steam reformer product hydrogen streams without the need for further compression of the product hydrogen streams. | 09-18-2014 |
| 20150078988 | Hydrogen Separation for Hydrocarbon Reforming Gas - A process involves separating hydrogen that is produced from a reformer. Specifically, the products, which include hydrogen, CO | 03-19-2015 |
