JOHN ROBERT HAROLD
Pilots at Otsego Rd, Worcester, MA
License number
Massachusetts A4661457
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
31 Otsego Rd, Worcester, MA 01609
Professional information
Thermal Decomposition Of Urea In A Side Stream Of Combustion Flue Gas Using A Regenerative Heat Exchanger
US Patent:
7682586, Mar 23, 2010
Filed:
Aug 22, 2007
Appl. No.:
11/843340
Inventors:
John R. Harold - Worcester MA, US
Clayton A. Erickson - Princeton MA, US
Clayton A. Erickson - Princeton MA, US
Assignee:
Babcock Power Environmental, Inc. - Worcester MA
International Classification:
C01C 1/08
US Classification:
423352, 423358, 4232391, 165 4, 16510411, 16510414, 165909
Abstract:
This invention relates generally to the treatment of NOx in combustion flue gas. In certain embodiments, the invention relates to the use of a regenerative heat exchanger (RHE) to convert urea to ammonia in a side stream of flue gas. Ammonia and/or other urea decomposition products exit the heat exchanger, are mixed with the rest of the flue gas, and enter a selective catalytic reduction (SCR) unit for reduction of NOx in the flue gas. The use of an RHE significantly improves the thermal efficiency of the overall process. More particularly, in certain embodiments, the regenerative heat exchanger is a dual chamber RHE.
Systems And Methods For High Efficiency Regenerative Selective Catalytic Reduction
US Patent:
8124017, Feb 28, 2012
Filed:
Jul 19, 2010
Appl. No.:
12/838908
Inventors:
John R. Harold - Worcester MA, US
James D. Dougherty - Boxford MA, US
James D. Dougherty - Boxford MA, US
Assignee:
Babcock Power Environmental Inc. - Worcester MA
International Classification:
B01D 53/74, B01D 53/86, F23L 15/02, F28D 15/00, F28D 17/00
US Classification:
422129, 422169, 422170, 422171, 422173, 422175, 165 4, 16510411, 16510414, 165909
Abstract:
The invention provides a system for regenerative selective catalytic reduction including a catalyst chamber that contains a catalyst for reducing NOin a gas stream passing therethrough. The system also includes a reactant injector, first and second heat exchangers, and a valve manifold adapted to direct a substantially continuous gas stream through the heat exchangers and catalyst chamber in such a manner as to flow through the catalyst chamber in the same flow direction during each cycle of the system. The invention also provides a process of regenerative selective catalytic reduction wherein the gas stream through the catalyst chamber flows in the same flow direction during each cycle of the process.
Systems And Methods For High Efficiency Regenerative Selective Catalytic Reduction
US Patent:
8318115, Nov 27, 2012
Filed:
Jan 5, 2012
Appl. No.:
13/343978
Inventors:
John R. Harold - Worcester MA, US
James D. Dougherty - Boxford MA, US
James D. Dougherty - Boxford MA, US
Assignee:
Babcock Power Environmental, Inc. - Worcester MA
International Classification:
B01D 53/56, B01D 53/90
US Classification:
423210, 4232391, 423247, 422129, 422469, 422170, 422171, 422173, 422175, 165 4, 16510411, 16510414, 165909
Abstract:
The invention provides a system for regenerative selective catalytic reduction including a catalyst chamber that contains a catalyst for reducing NOin a gas stream passing therethrough. The system also includes a reactant injector, first and second heat exchangers, and a valve manifold adapted to direct a substantially continuous gas stream through the heat exchangers and catalyst chamber in such a manner as to flow through the catalyst chamber in the same flow direction during each cycle of the system. The invention also provides a process of regenerative selective catalytic reduction wherein the gas stream through the catalyst chamber flows in the same flow direction during each cycle of the process.
Conversion Of Urea To Reactants For Noreduction
US Patent:
8017100, Sep 13, 2011
Filed:
Sep 28, 2009
Appl. No.:
12/567864
Inventors:
Clayton A. Erickson - Princeton MA, US
Rajaram Jambhekar - Randolph MA, US
John R. Harold - Worcester MA, US
Rajaram Jambhekar - Randolph MA, US
John R. Harold - Worcester MA, US
Assignee:
Babcock Power Environmental Inc. - Worcester MA
International Classification:
C01C 1/08
US Classification:
423358, 423235, 423DIG 5, 422105, 422108
Abstract:
The invention provides a system for converting urea into reactants useful for removing NOfrom industrial emissions. The system includes a urea inlet, a steam inlet, and a reactor in fluid communication with the urea inlet and the steam inlet. The reactor is configured and adapted to inject urea from the urea inlet into a steam flow from the steam inlet to convert the urea into at least one reactant for NOreduction within a substantially gaseous mixture. The invention also provides a method of converting urea into reactants for reducing NOout of industrial emissions. The method includes injecting urea into a steam flow to convert the urea into at least one reactant for NOreduction within a substantially gaseous mixture.
Conversion Of Urea To Reactants For Nox Reduction
US Patent:
2008026, Oct 30, 2008
Filed:
May 10, 2007
Appl. No.:
11/801705
Inventors:
Calvin E. Phelps - Akron OH, US
Clayton A. Erickson - Princeton MA, US
Rajaram Jambhekar - Randolph MA, US
John R. Harold - Worcester MA, US
Clayton A. Erickson - Princeton MA, US
Rajaram Jambhekar - Randolph MA, US
John R. Harold - Worcester MA, US
International Classification:
B01J 19/00
US Classification:
422162
Abstract:
The invention provides a system for converting urea into reactants useful for removing NOfrom industrial emissions. The system includes a urea inlet, a steam inlet, and a reactor in fluid communication with the urea inlet and the steam inlet. The reactor is configured and adapted to inject urea from the urea inlet into a steam flow from the steam inlet to convert the urea into at least one reactant for NOreduction within a substantially gaseous mixture. The invention also provides a method of converting urea into reactants for reducing NOout of industrial emissions. The method includes injecting urea into a steam flow to convert the urea into at least one reactant for NOreduction within a substantially gaseous mixture.