NITROGEN OXIDE REDUCING COMBUSTION METHOD

• Main Author: MURAYAMA MOTOHIDE
• Format: Patent
• Language: English
• Published: 22.08.1995
• Edition: 6
• Subjects: BLASTING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING; WEAPONS

PURPOSE:To decrease a nitrogen oxide after making it stay in a reducing atmospheric area in a flame by spraying fuel in a grade magnetic field, where magnetic field strength goes down along a direction spraying the fuel, and making it into combustion. CONSTITUTION:It is provided with two magnets 3 whose interval becomes larger in proportion as going to the more X-axial fuel injection direction than a nozzle 2 as holding this nozzle 2 of a fuel feeding pipe 1 between, and magnetic intensity 4 forms a grade magnetic field that is decreased according to the extent of this interval. As fuel, for example, when methane is sprayed as well as when there is no grade magnetic field, it becomes flame form 6, but oxygen of normal magnetic gas in the air is attracted to the side of the nozzle 2 of the fuel being large in magnetic intensity and its combustion is accelerated by being of the grade magnetic field, and it comes to such a shape as being tensed like a diffusion flame 7 in the grade magnetic field. With this combustion, on a surface of the diffusion flame 7, a prompt nitrogen oxide (NOx) is generated by a reaction between nitrogen and oxygen in the air, but it is pulled into the flame at the grade magnetic field. The inner part of this diffusion flame is turned to a reduced magnetic field where oxygen is in short supply, so the NOx is reduced into extinction.