Carbon-particle generator
Abstract
A method and apparatus whereby small carbon particles are made by pyrolysis of a mixture of acetylene carried in argon. The mixture is injected through a nozzle into a heated tube. A small amount of air is added to the mixture. In order to prevent carbon build-up at the nozzle, the nozzle tip is externally cooled. The tube is also elongated sufficiently to assure efficient pyrolysis at the desired flow rates. A key feature of the method is that the acetylene and argon, for example, are premixed in a dilute ratio, and such mixture is injected while cool to minimize the agglomeration of the particles, which produces carbon particles with desired optical properties for use as a solar radiant heat absorber.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5848242
- Application Number:
- ON: DE83018041
- Assignee:
- ERA-08-053828; EDB-83-175839
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; ACETYLENE; PYROLYSIS; CARBON; CHEMICAL PREPARATION; ARGON; MIXTURES; NOZZLES; PARTICLES; SOLAR ABSORBERS; ALKYNES; CHEMICAL REACTIONS; DECOMPOSITION; DISPERSIONS; ELEMENTS; EQUIPMENT; FLUIDS; GASES; HYDROCARBONS; NONMETALS; ORGANIC COMPOUNDS; RARE GASES; SOLAR EQUIPMENT; SYNTHESIS; THERMOCHEMICAL PROCESSES; 141000* - Solar Collectors & Concentrators
Citation Formats
Hunt, A.J. Carbon-particle generator. United States: N. p., 1982.
Web.
Hunt, A.J. Carbon-particle generator. United States.
Hunt, A.J. Wed .
"Carbon-particle generator". United States.
@article{osti_5848242,
title = {Carbon-particle generator},
author = {Hunt, A.J.},
abstractNote = {A method and apparatus whereby small carbon particles are made by pyrolysis of a mixture of acetylene carried in argon. The mixture is injected through a nozzle into a heated tube. A small amount of air is added to the mixture. In order to prevent carbon build-up at the nozzle, the nozzle tip is externally cooled. The tube is also elongated sufficiently to assure efficient pyrolysis at the desired flow rates. A key feature of the method is that the acetylene and argon, for example, are premixed in a dilute ratio, and such mixture is injected while cool to minimize the agglomeration of the particles, which produces carbon particles with desired optical properties for use as a solar radiant heat absorber.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {9}
}
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