Nitrogen fixation by titanium dioxide
First Claim
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1. A nitrogen fixation method, comprising:
- providing an amount of titania catalyst;
contacting the titania catalyst with a feed stream comprising nitrogen;
heating the titania catalyst at a temperature of between about 40°
C. and about 600°
C. to fix nitrogen from the feed stream to form oxidized nitrogen products; and
removing the oxidized nitrogen products from the titania catalyst, comprising contacting the titania catalyst with water, the nitrogen products dissolving in the water;
wherein heating the titania catalyst is carried out in the absence of light for photochemically activating the titania catalyst.
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Abstract
In various embodiments, the present disclosure provides a method of fixing nitrogen. An amount of titania catalyst is provided and contacted with a feed stream that includes nitrogen. The titania catalyst is heated. The heated titania catalyst fixes nitrogen in the feed stream to form nitrogen products, such as nitrates. The nitrogen products are then removed from the titania catalyst. In some examples, the titania catalyst is treated with a base. In further examples, the catalytic process is carried out in the absence of light for photochemically activating the titania catalyst.
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Citations
15 Claims
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1. A nitrogen fixation method, comprising:
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providing an amount of titania catalyst; contacting the titania catalyst with a feed stream comprising nitrogen; heating the titania catalyst at a temperature of between about 40°
C. and about 600°
C. to fix nitrogen from the feed stream to form oxidized nitrogen products; andremoving the oxidized nitrogen products from the titania catalyst, comprising contacting the titania catalyst with water, the nitrogen products dissolving in the water; wherein heating the titania catalyst is carried out in the absence of light for photochemically activating the titania catalyst. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification