Removing carbon nanotubes from a water system
First Claim
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1. A method comprising:
- forming carbon nanotubes in a reactor in a Bosch reaction;
separating the carbon nanotubes from a reactor effluent stream, forming a waste gas stream;
condensing water in the waste gas stream giving a water stream;
removing carbon nanotubes from the water stream to give a purified water stream, wherein removing the carbon nanotubes comprises forming carbon oxide from the carbon nanotubes within the water stream to give the purified water stream.
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Abstract
Methods and a system for removing carbon nanotubes from a water stream are provided herein. The system includes a purification vessel, wherein the purification vessel is configured to form a carbon oxide from the carbon nanotubes within the water stream.
16 Citations
27 Claims
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1. A method comprising:
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forming carbon nanotubes in a reactor in a Bosch reaction; separating the carbon nanotubes from a reactor effluent stream, forming a waste gas stream; condensing water in the waste gas stream giving a water stream; removing carbon nanotubes from the water stream to give a purified water stream, wherein removing the carbon nanotubes comprises forming carbon oxide from the carbon nanotubes within the water stream to give the purified water stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for producing carbon nanotubes including purifying a water stream comprising carbon nanotubes, comprising:
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reacting a feed gas with a catalyst in a reactor in a Bosch reaction to form carbon nanotubes; discharging a reactor effluent from the reactor; separating product carbon nanotubes from the reactor effluent, forming a waste gas stream comprising residual carbon nanotubes; condensing, via a first heat exchanger, water in the waste gas stream to give a water stream; and flowing the water stream into a purification vessel; injecting air into the purification vessel; and effecting a separation of the carbon nanotubes from the water stream through an interaction of the air with the carbon nanotubes through air sparging within the purification vessel to give a purified water stream. - View Dependent Claims (16)
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15. A method for producing carbon nanotubes including purifying a water stream comprising carbon nanotubes, comprising:
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reacting a feed gas with a catalyst in a reactor in a Bosch reaction to form carbon nanotubes; discharging a reactor effluent from the reactor; separating product carbon nanotubes from the reactor effluent, forming a waste gas stream comprising residual carbon nanotubes; condensing water in the waste gas stream to give a water stream; flowing the water stream into a purification vessel; injecting ozone into the purification vessel; and effecting a separation of the carbon nanotubes from the water stream through an interaction of the ozone with the carbon nanotubes through ozonolysis within the purification vessel to give a purified water stream.
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17. A system comprising:
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a reactor to form carbon nanotubes from feed gas in a Bosch reaction, the reactor comprising an inlet to receive the feed gas and an outlet to discharge the reactor effluent; a separation device to separate carbon nanotubes from the reactor effluent, forming a waste gas stream; a heat exchanger to condense water in the waste gas stream to give a dry waste gas stream and a water stream; and a purification system to remove carbon nanotubes from the water stream to give a purified water stream, comprising the purification system to form carbon oxide from the carbon nanotubes within the water stream. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification