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Method for decomposing dinitrogen monoxide

A nitrous oxide and catalyst layer technology, which is applied in the direction of nitrous oxide capture, separation methods, chemical instruments and methods, etc., to achieve the effects of reducing equipment costs, reducing global warming substances, and simplifying the system

Inactive Publication Date: 2009-08-05
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in its practical application, there are still issues such as system simplification, development of a good catalyst, and reduction of equipment cost.

Method used

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  • Method for decomposing dinitrogen monoxide
  • Method for decomposing dinitrogen monoxide
  • Method for decomposing dinitrogen monoxide

Examples

Experimental program
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Embodiment 1

[0053] As the FCC equilibrium catalyst, a compound containing 10% by mass of rhenium-substituted ultrastable Y-type zeolite, 40% by mass of alumina, 30% by mass of silica, and 20% by mass of the clay mineral kaolin extracted from the actual plant of FCC (real plant) was used. An FCC equilibrium catalyst in which rhenium is substituted for ultrastable Y-type zeolite and 520 mass ppm of vanadium and 280 mass ppm of nickel are accumulated.

[0054] Use this FCC equilibrium catalyst (particles with a particle size of 0.080 to 0.3mm) for N 2 O decomposition experiment.

[0055] used in this experiment figure 2 device shown. This device has the quartz tube 1 that inner diameter is 6mm, the electric furnace 2 that surrounds the central part of the length direction of the quartz tube 1, the N that is connected with the bottom of the quartz tube 1 2 O gas inlet pipe 3, set in N 2 N in the middle of the O gas introduction pipe 3 2 O gas flow meter 4, the gas discharge pipe 5 that ...

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Abstract

A method for decomposing dinitrogen monoxide including bringing a gas containing dinitrogen monoxide into contact with a fluid catalytic cracking (FCC) equilibrium catalyst.

Description

technical field [0001] The present invention relates to a method for decomposing nitrous oxide contained in combustion gas or exhaust gas. Background technique [0002] The fluid bed (fluid bed) fueled by coal, heavy oil, petroleum coke, industrial waste, etc. ) combustion, because it is a low-temperature combustion of about 800 ° C, so nitrogen monoxide (NO) and nitrogen dioxide (NO 2 ) and other nitrogen oxides release less. However, due to nitrous oxide (N 2 O) has a large amount of generation, so its reduction measures are very necessary. [0003] in N 2 In terms of O reduction, the N contained in the exhaust gas discharged from the combustion furnace is being developed so far. 2 A method in which O is decomposed at a low temperature of 300 to 400°C using a catalyst, plasma discharge, or the like. [0004] However, there are still issues such as simplification of the system, development of a good catalyst, and reduction of equipment cost in its practical applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/94B01J29/16
CPCB01D2255/30Y02C20/10B01J2229/42B01D53/8628B01J29/166B01D2257/402B01D2255/906B01D53/94B01J29/16
Inventor 藤原尚树
Owner IDEMITSU KOSAN CO LTD
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