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Burners and combustion apparatus for carbon nanomaterial production

Patent ·
OSTI ID:1083228

The invention provides improved burners, combustion apparatus, and methods for carbon nanomaterial production. The burners of the invention provide sooting flames of fuel and oxidizing gases. The condensable products of combustion produced by the burners of this invention produce carbon nanomaterials including without limitation, soot, fullerenic soot, and fullerenes. The burners of the invention do not require premixing of the fuel and oxidizing gases and are suitable for use with low vapor pressure fuels such as those containing substantial amounts of polyaromatic hydrocarbons. The burners of the invention can operate with a hot (e.g., uncooled) burner surface and require little, if any, cooling or other forms of heat sinking. The burners of the invention comprise one or more refractory elements forming the outlet of the burner at which a flame can be established. The burners of the invention provide for improved flame stability, can be employed with a wider range of fuel/oxidizer (e.g., air) ratios and a wider range of gas velocities, and are generally more efficient than burners using water-cooled metal burner plates. The burners of the invention can also be operated to reduce the formation of undesirable soot deposits on the burner and on surfaces downstream of the burner.

Research Organization:
Frontier Carbon Corporation (Tokyo, JP)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG03-98ER82692
Assignee:
Frontier Carbon Corporation (Tokyo, JP)
Patent Number(s):
8,367,032
Application Number:
11/684,319
OSTI ID:
1083228
Country of Publication:
United States
Language:
English

References (14)

Production of C60 and C70 fullerenes in benzene-oxygen flames journal August 1992
Fullerenes synthesis in combustion journal January 1992
The formation of C60 and its precursors in naphthalene flames journal July 1994
Formation of C60 by pyrolysis of naphthalene journal December 1993
Fullerenes C60 and C70 in flames journal July 1991
Combustion synthesis of fullerenes journal January 1992
Fullerenes journal October 1991
Development prospects of the commercial production of fullerenes journal May 2000
Experimental study of industrial scale fullerene production by combustion synthesis journal January 2005
Fullerenes and Soot Formation— New Pathways to Large Particles in Flames journal October 1998
The Higher Fullerenes: Isolation and Characterization of C76, C84, C90, C94, and C70O, an Oxide of D5h-C70 journal April 1991
Laser Ablation Mass Spectrometry of Pyrolyzed Koppers Coal-Tar Pitch:  A Precursor for Fullerenes and Metallofullerenes journal November 1999
Synthesis of Single-Walled Carbon Nanotubes in Flames journal October 2000
Solid C60: a new form of carbon journal September 1990