| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 252374000 | Nitrogen and hydrogen containing | 12 |
| 20090314994 | Process for the Production of Syngas for Ammonia Synthesis - A process for producing a synthesis gas containing hydrogen and nitrogen, suitable for production of ammonia, wherein a raw synthesis gas ( | 12-24-2009 |
| 20110133127 | SYSTEM AND METHOD TO GASIFY AQUEOUS UREA INTO AMMONIA VAPORS USING SECONDARY FLUE GASES - The present invention is a combustion system employing a urea-to-ammonia vapor reactor system. The urea-to-ammonia reactor housing enclosed in a bypass flow duct that receives a secondary flue gas stream at a split point from a main flue gas stream containing nitrogen oxides (NOx) emanating from a boiler. The bypass flow duct allows the secondary flue gas stream to flow past the enclosed reactor housing where injected aqueous urea in atomized or non-atomized form, is gasified to ammonia vapor. The resulting gaseous mixtures of ammonia, its by-products and the secondary flue gas stream subsequently rejoin the main stream, before the main flue gases are treated through a Selective Catalytic Reduction (SCR) reactor apparatus. A residence time of the secondary stream within the bypass flow duct, which may be increased by a recirculation loop, enables effective conversion of urea to ammonia to be used in the SCR apparatus. | 06-09-2011 |
| 20110291052 | APPARATUS AND METHOD FOR SUPPLYING AMINE USING THERMAL DECOMPOSITION - Provided are an apparatus for supplying amine, including: transfer pipe through which amine is transferred; a heat wire which heats the amine that flows through the transfer pipe; a temperature control sensor which controls the temperature in the transfer pipe; and a product recovery valve which recovers product resulting from thermal decomposition of the amine, and a method for supplying amine using the same. The apparatus and method for supplying amine are capable of economically and effectively supplying amine utilizing the thermal decomposition properties of the amine, and may be used to supply amine, for example, to circulating water for power plants. | 12-01-2011 |
| 20120161079 | Production of Ammonia Make-Up Syngas with Cryogenic Purification - A process and a related equipment for making ammonia make-up synthesis gas are disclosed, where: a hydrocarbon feedstock is reformed obtaining a raw ammonia make-up syngas stream; said raw syngas is purified in a cryogenic purification section refrigerated by a nitrogen-rich stream produced in an air separation unit; the nitrogen-rich stream at output of said cryogenic section is further used for adjusting the hydrogen/nitrogen ratio of the purified make-up syngas; an oxygen-rich stream is also produced in said air separation unit and is fed to the reforming section. | 06-28-2012 |
| 20150129806 | Process for Producing Ammonia Synthesis Gas and a Method for Revamping a Front-End of an Ammonia Plant - A process for producing ammonia make-up synthesis gas and a procedure for revamping a front-end of an ammonia plant for producing ammonia make-up synthesis gas are disclosed, wherein the make-up synthesis gas is produced by means of steam reforming of a hydrocarbon gaseous feedstock; said front-end includes a primary reformer, a secondary reformer, a shift conversion section, a CO2 removal section and optionally a methanation section; a shell-and-tube gas-heated reformer is installed after said secondary reformer, and a portion of the available feedstock is reformed in the tubes of said gas-heated reformer, and heat is provided to the shell side of said gas-heated reformer by at least a portion of product gas leaving the secondary reformer, possibly mixed with product gas leaving the tubes of said gas-heated reformer. | 05-14-2015 |
| 20160068389 | PRODUCTION OF AMMONIA MAKE-UP SYNGAS WITH CRYOGENIC PURIFICATION - A process and a related equipment for making ammonia make-up synthesis gas are disclosed, where: a hydrocarbon feedstock is reformed obtaining a raw ammonia make-up syngas stream; said raw syngas is purified in a cryogenic purification section refrigerated by a nitrogen-rich stream produced in an air separation unit; the nitrogen-rich stream at output of said cryogenic section is further used for adjusting the hydrogen/nitrogen ratio of the purified make-up syngas; an oxygen-rich stream is also produced in said air separation unit and is fed to the reforming section. | 03-10-2016 |
| 20160115017 | A PROCESS FOR PRODUCING AMMONIA SYNTHESIS GAS WITH HIGH TEMPERATURE SHIFT AND LOW STEAM-TO-CARBON RATIO - A process for producing ammonia synthesis gas from a hydrocarbon-containing feedstock in a front-end, comprising the steps of steam reforming of said feedstock, obtaining a synthesis gas comprising hydrogen, carbon monoxide and carbon dioxide; a treatment of said synthesis gas including shift of carbon monoxide and subsequent removal of carbon dioxide, wherein the shift of the synthesis gas includes high-temperature shift with an iron-based catalyst and at a temperature greater than 300° C. and the global steam-to-carbon ratio of the front end is 2.6 or less; a corresponding plant and a method for revamping a front-end of an ammonia plant are also disclosed. | 04-28-2016 |
| 252375000 | Nitrogen from air or elementary nitrogen only and hydrogen from compounds | 3 |
| 252376000 | Hydrogen from hydrocarbons | 3 |
| 20100200812 | PRODUCTION METHOD FOR RAW GAS FOR AMMONIA SYNTHESIS AND PRODUCTION APPARATUS THEREFOR - There is provided a method for producing a raw gas for ammonia synthesis in which light hydrocarbons from a tube | 08-12-2010 |
| 20110297886 | PROCESS AND EQUIPMENT FOR THE PRODUCTION OF AMMONIA MAKE-UP SYNGAS WITH AN AIR SEPARATION UNIT AS NITROGEN SOURCE - A process and a plant for producing a makeup synthesis gas ( | 12-08-2011 |
| 20150014596 | PROCESS FOR PRODUCING AMMONIA SYNTHESIS GAS AND A RELATED FRONT-END OF AN AMMONIA PLANT - A process for producing ammonia synthesis gas from a hydrocarbon source, comprising: conversion of the hydrocarbon source into a raw synthesis gas ( | 01-15-2015 |
| 252377000 | From elementary nitrogen and hydrogen only or purification | 2 |
| 20100051876 | PROCESS FOR THE PRODUCTION OF AMMONIA SYNTHESIS GAS WITH IMPROVED CRYOGENIC PURIFICATION - A process and related equipment for producing ammonia synthesis gas are disclosed, wherein a raw syngas ( | 03-04-2010 |
| 20150083972 | METHOD FOR PURIFICATION OF AMMONIA, MIXTURES OF NITROGEN AND HYDROGEN, OR NITROGEN, HYDROGEN AND AMMONIA - Method for purification of ammonia or mixtures of nitrogen and hydrogen, or nitrogen, hydrogen and ammonia, where ammonia or a mixture of gases under pressure of from 0.1 to 25 MPa is passed through a column packed with aluminium oxide with a large specific surface area, the ammonia or mixture of gases is then passed through a column packed with CaO, NaOH, KOH or an NaOH/KOH melt, separately or in a mixture, at 20 to 70° C. and under pressure of from 0.1 to 25 MPa, and the ammonia or mixture of gases is passed through a column packed with activated carbon having a specific area of 100-3000 m | 03-26-2015 |
