JACK B HOWARD
Engineering in Winchester, MA
License number
Massachusetts 25538
Expiration Date
Jun 30, 1984
Type
Chemical Engineer
Address
Address
Winchester, MA 01890
Professional information
Combustor For Combustion Synthesis Of Fullerenes
US Patent:
7833493, Nov 16, 2010
Filed:
May 27, 2008
Appl. No.:
12/127536
Inventors:
Jack B. Howard - Winchester MA, US
David F. Kronholm - Boston MA, US
Anthony J. Modestino - Hanson MA, US
Henning Richter - Dorchester MA, US
David F. Kronholm - Boston MA, US
Anthony J. Modestino - Hanson MA, US
Henning Richter - Dorchester MA, US
Assignee:
Nano-C, Inc. - Westwood MA
International Classification:
C01C 1/00, C01B 31/00
US Classification:
422150, 423445 B, 977842, 977734
Abstract:
A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor. A secondary zone is also disclosed which provides further residence time for reaction and the ability to control operating parameters, operates on the principle of minimizing recycle of the reacting combustion mixture.
Method For Combustion Synthesis Of Fullerenes
US Patent:
7396520, Jul 8, 2008
Filed:
Aug 31, 2002
Appl. No.:
10/489846
Inventors:
Jack B. Howard - Winchester MA, US
David F. Kronholm - Boston MA, US
Anthony J. Modestino - Hanson MA, US
Henning Richter - Dorchester MA, US
David F. Kronholm - Boston MA, US
Anthony J. Modestino - Hanson MA, US
Henning Richter - Dorchester MA, US
Assignee:
Nano-C, Inc. - Westwood MA
International Classification:
B01J 19/08
US Classification:
423445B, 977842
Abstract:
A mod of combustion and a multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multicomponent reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor. A secondary zone is also disclosed which provides further residence time for reaction and the ability to control operating parameters, operates on the principle of minimizing recycle of the reacting combustion mixture.
Combustion Method For Producing Fullerenes
US Patent:
5273729, Dec 28, 1993
Filed:
May 24, 1991
Appl. No.:
7/705310
Inventors:
Jack B. Howard - Winchester MA
J. Thomas McKinnon - Boulder CO
J. Thomas McKinnon - Boulder CO
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C01B 3100
US Classification:
423445
Abstract:
A method for synthesizing fullerenes in flames is provided. Fullerenes are prepared by burning carbon-containing compounds in a flame and collecting the condensibles. The condensibles contain the desired fullerenes. Fullerene yields can be optimized and fullerene composition can be selectively varied. Fullerene yields and compositions are determined by selectively controlling flame conditions and parameters such as C/O ratio, pressure, temperature, residence time, diluent concentration and gas velocity.
Method For Methane Conversion
US Patent:
5246550, Sep 21, 1993
Filed:
Feb 6, 1990
Appl. No.:
7/475733
Inventors:
William A. Peters - Lexington MA
Jack B. Howard - Winchester MA
Jack B. Howard - Winchester MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C07C 200
US Classification:
204 80
Abstract:
A method for volumetric reduction of gaseous methane to for magnesium carbide is disclosed. A mixture containing methane and magnesium oxide is reacted at a temperature of 1400 C. or greater to form magnesium tricarbide and by-product gases. The carbide can be hydrolyzed to form hydrocarbons that are useful as chemical feedstocks as fuels for combustion, etc. C. sub. 3 hydrocarbons such as those produced by hydrolysis of magnesium tricarbide can be reacted to form benzene using a dehydrocyclization catalyst.
Method For Methane Conversion
US Patent:
4921685, May 1, 1990
Filed:
Dec 12, 1988
Appl. No.:
7/283401
Inventors:
William A. Peters - Lexington MA
Jack B. Howard - Winchester MA
Jack B. Howard - Winchester MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C01B 3130
US Classification:
423439
Abstract:
A method for volumetric reduction of gaseous methane to form magnesium carbide is disclosed. A mixture containing methane and magnesium oxide is reacted at a temperature of 1400. degree. C. or greater to form magnesium tricarbide and by-product gases. The carbide can be hydrolyzed to form hydrocarbons that are useful as chemical feedstocks as fuels for combustion, etc. C. sub. 3 hydrocarbons such as those produced by hydrolysis of magnesium tricarbide can be reacted to form benzene using a dehydrocyclization catalyst.
Separation And Purification Of Fullerenes
US Patent:
7833497, Nov 16, 2010
Filed:
Sep 8, 2008
Appl. No.:
12/206469
Inventors:
David F. Kronholm - Boston MA, US
Jack B. Howard - Winchester MA, US
Jack B. Howard - Winchester MA, US
Assignee:
Nano-C, LLC. - Westwood MA
International Classification:
B01J 19/00, B01J 19/08
US Classification:
422198, 423445 B, 423461, 977734, 977842, 977843, 95273
Abstract:
A method of processing fullerenes includes generating a gas stream having suspended soot particles and condensable gases, wherein the condensable gases comprising fullerenes, and separating at least a portion of the condensable gases from the suspended soot particles using a gas/solid separations process. At least a portion of the fullerenes in the condensable gases can be condensed and collected after separation of the condensable gases.
Method And Apparatus For Synthesizing Filamentary Structures
US Patent:
7887775, Feb 15, 2011
Filed:
Sep 12, 2007
Appl. No.:
11/853921
Inventors:
Murray J. Height - Somerville MA, US
Jack B. Howard - Winchester MA, US
John B. Vandersande - Newbury MA, US
Jack B. Howard - Winchester MA, US
John B. Vandersande - Newbury MA, US
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
D01C 5/00
US Classification:
4234473, 977843
Abstract:
Method and apparatus for producing filamentary structures. The structures include single-walled nanotubes. The method includes combusting hydrocarbon fuel and oxygen to establish a non-sooting flame and providing an unsupported catalyst to synthesize the filamentary structure in a post-flame region of the flame. Residence time is selected to favor filamentary structure growth.
Method And Apparatus For Synthesizing Filamentary Structures
US Patent:
7335344, Feb 26, 2008
Filed:
Mar 14, 2003
Appl. No.:
10/389002
Inventors:
Murray J. Height - Somerville MA, US
Jack B. Howard - Winchester MA, US
John B. Vandersande - Newbury MA, US
Jack B. Howard - Winchester MA, US
John B. Vandersande - Newbury MA, US
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
D01C 5/00
US Classification:
4234473, 977843
Abstract:
Method and apparatus for producing filamentary structures. The structures include single-walled nanotubes. The method includes combusting hydrocarbon fuel and oxygen to establish a non-sooting flame and providing an unsupported catalyst to synthesize the filamentary structure in a post-flame region of the flame. Residence time is selected to favor filamentary structure growth.
Method For Production Of Magnesium
US Patent:
5782952, Jul 21, 1998
Filed:
Aug 30, 1996
Appl. No.:
8/706076
Inventors:
Alexander F. Diaz - Cambridge MA
Jack B. Howard - Winchester MA
Anthony J. Modestino - Hanson MA
William A. Peters - Lexington MA
Jack B. Howard - Winchester MA
Anthony J. Modestino - Hanson MA
William A. Peters - Lexington MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C22B 2622
US Classification:
75 1019
Abstract:
A continuous process for the production of elemental magnesium is described. Magnesium is made from magnesium oxide and a light hydrocarbon gas. In the process, a feed stream of the magnesium oxide and gas is continuously fed into a reaction zone. There the magnesium oxide and gas are reacted at a temperature of about 1400. degree. C. or greater in the reaction zone to provide a continuous product stream of reaction products, which include elemental magnesium. The product stream is continuously quenched after leaving the reaction zone, and the elemental magnesium is separated from other reaction products.
Fullerenic Structures And Such Structures Tethered To Carbon Materials
US Patent:
8282905, Oct 9, 2012
Filed:
Oct 19, 2009
Appl. No.:
12/581337
Inventors:
Anish Goel - Washington DC, US
Jack B. Howard - Winchester MA, US
John B. Vander Sande - Newbury MA, US
Jack B. Howard - Winchester MA, US
John B. Vander Sande - Newbury MA, US
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
B01J 19/08
US Classification:
423445B, 4234491, 4234492, 977737, 977740, 977847
Abstract:
The fullerenic structures include fullerenes having molecular weights less than that of Cwith the exception of Cand fullerenes having molecular weights greater than C. Examples include fullerenes C, C, C, and C. Fullerenic structure chemically bonded to a carbon surface is also disclosed along with a method for tethering fullerenes to a carbon material. The method includes adding functionalized fullerene to a liquid suspension containing carbon material, drying the suspension to produce a powder, and heat treating the powder.