Carbon nanostructure preparation method, carbon nanostructure prepared by means of same, and composite material comprising same
US-2018002178-A1 · Jan 4, 2018 · US
Method of producing carbon nanotubes in fluidized bed reactor
US11053123B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11053123-B2 |
| Application number | US-201816021588-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2018 |
| Priority date | Jul 3, 2017 |
| Publication date | Jul 6, 2021 |
| Grant date | Jul 6, 2021 |
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Abstract
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Provided is a method of producing carbon nanotubes by supplying a catalyst and a carbon source to a fluidized bed reactor. The fluidized bed reactor has an expanded zone. A flow velocity (linear velocity) of a raw material supplied to the fluidized bed reactor is equal to or higher than a terminal velocity of an internal material in the fluidized bed reactor.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of producing carbon nanotubes by supplying a catalyst and a carbon source to a fluidized bed reactor, wherein the fluidized bed reactor has an expanded zone, wherein a linear flow velocity of a raw material supplied to the fluidized bed reactor is equal to or higher than a terminal velocity of internal materials in the fluidized bed reactor, wherein the linear flow velocity of the raw material is equal to or more than 25 times a minimum fluidization velocity of the internal materials, and wherein the linear flow velocity of the raw material in the expanded zone is less than the terminal velocity of the internal materials. 2. The method according to claim 1 , wherein the flow velocity of the raw material is 20 cm/s or higher. 3. The method according to claim 1 , wherein the carbon source is one or more selected from the group consisting of saturated and unsaturated hydrocarbons having 1 to 4 carbon atoms. 4. The method according to claim 1 , wherein the catalyst is a metal catalyst. 5. The method according to claim 4 , the metal catalyst is any one metal selected from the group consisting of iron (Fe), molybdenum (Mo), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), nickel (Ni), cobalt (Co), copper (Cu), cadmium (Cd), zinc (Zn), ruthenium (Ru), lead (Pd), silver (Ag), platinum (Pt) and gold (Au), or any one selected from alloys thereof. 6. The method according to claim 1 , wherein the carbon nanotubes have a diameter of 0.4 nm to 10 nm. 7. The method according to claim 1 , wherein the carbon nanotubes are comprised of 1 to 10 layers.
Assignees
Inventors
Classifications
Diameter · CPC title
according to "fluidised-bed" technique (B01J8/20 takes precedence) · CPC title
Flow · CPC title
with liquid as a fluidising medium · CPC title
with fluidised particles {(combustion apparatus with fluidised bed in general F23C10/00; furnaces with fluidised bed F27B15/00)} · CPC title
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- What does patent US11053123B2 cover?
- Provided is a method of producing carbon nanotubes by supplying a catalyst and a carbon source to a fluidized bed reactor. The fluidized bed reactor has an expanded zone. A flow velocity (linear velocity) of a raw material supplied to the fluidized bed reactor is equal to or higher than a terminal velocity of an internal material in the fluidized bed reactor.
- Who is the assignee on this patent?
- Sk Innovation Co Ltd, Sk Global Chemical Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01B32/162. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 06 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).