Patents by Inventor Parthasarathy Kesavan

Parthasarathy Kesavan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11788012
    Abstract: The present technology is generally directed to integrated control of coke ovens in a coke plant in order to optimize coking rate, product recovery, byproducts and/or unit lime consumption Optimization objectives are achieved through controlling certain variables (called control variables) by manipulating available handles (called manipulated variables) subject to constraints and system disturbances that affect the controlled variables.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: October 17, 2023
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Jack Ziegler, Katie Russell, Mike Muhlbaier, Rakshak Khanna, Sharla Evatt, Milos Kaplarevic, Peter Chun
  • Patent number: 11441078
    Abstract: The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: September 13, 2022
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Ung-Kyung Chun, Rajesh Kumar Kandula, Mayela Carolina Fernandez, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Patent number: 11060032
    Abstract: The present technology, is generally directed to integrated control of coke ovens in a coke plant in order to optimize coking rate, product recovery, byproducts and/or unit lime consumption Optimization objectives are achieved through controlling certain variables (called control variables) by manipulating available handles (called manipulated variables) subject to constraints and system disturbances that affect the controlled variables.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: July 13, 2021
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Jack Ziegler, Katie Russell, Mike Muhlbaier, Rakshak Khanna, Sharla Evatt, Milos Kaplarevic, Peter Chun
  • Patent number: 11053444
    Abstract: The present technology is generally directed to methods of increasing coal processing rates for coke ovens. In various embodiments, the present technology is applied to methods of coking relatively small coal charges over relatively short time periods, resulting in an increase in coal processing rate. In some embodiments, a coal charging system includes a charging head having opposing wings that extend outwardly and forwardly from the charging head, leaving an open pathway through which coal may be directed toward side edges of the coal bed. In other embodiments, an extrusion plate is positioned on a rearward face of the charging head and oriented to engage and compress coal as the coal is charged along a length of the coking oven. In other embodiments, a false door system includes a false door that is vertically oriented to maximize an amount of coal being charged into the oven.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 6, 2021
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Chun Wai Choi, Parthasarathy Kesavan, Katharine E. Russell, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Publication number: 20210163822
    Abstract: The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.
    Type: Application
    Filed: January 22, 2021
    Publication date: June 3, 2021
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Ung-Kyung Chun, Rajesh Kumar Kandula, Mayela Carolina Fernandez, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowick, Edward A. Glass
  • Publication number: 20210163823
    Abstract: The present technology is generally directed to integrated control of coke ovens in a coke plant in order to optimize coking rate, product recovery, byproducts and/or unit lime consumption Optimization objectives are achieved through controlling certain variables (called control variables) by manipulating available handles (called manipulated variables) subject to constraints and system disturbances that affect the controlled variables.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Jack Ziegler, Katie Russell, Mike Muhlbaier, Rakshak Khanna, Sharla Evatt, Milos Kaplarevic, Peter Chun
  • Patent number: 10920148
    Abstract: The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 16, 2021
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Ung-Kyung Chun, Rajesh Kumar Kandula, Mayela Carolina Fernandez, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Publication number: 20200157430
    Abstract: The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.
    Type: Application
    Filed: May 31, 2019
    Publication date: May 21, 2020
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Ung-Kyung Chun, Rajesh Kumar Kandula, Mayela Carolina Fernandez, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Publication number: 20190352568
    Abstract: The present technology is generally directed to methods of increasing coal processing rates for coke ovens. In various embodiments, the present technology is applied to methods of coking relatively small coal charges over relatively short time periods, resulting in an increase in coal processing rate. In some embodiments, a coal charging system includes a charging head having opposing wings that extend outwardly and forwardly from the charging head, leaving an open pathway through which coal may be directed toward side edges of the coal bed. In other embodiments, an extrusion plate is positioned on a rearward face of the charging head and oriented to engage and compress coal as the coal is charged along a length of the coking oven. In other embodiments, a false door system includes a false door that is vertically oriented to maximize an amount of coal being charged into the oven.
    Type: Application
    Filed: January 18, 2019
    Publication date: November 21, 2019
    Inventors: John Francis Quanci, Chun Wai Choi, Parthasarathy Kesavan, Katharine E. Russell, Khambath Vichilvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Patent number: 10308876
    Abstract: The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 4, 2019
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Ung-Kyung Chun, Rajesh Kumar Kandula, Mayela Carolina Fernandez, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Patent number: 10233392
    Abstract: The present technology is generally directed to methods of increasing coal processing rates for coke ovens. In various embodiments, the present technology is applied to methods of coking relatively small coal charges over relatively short time periods, resulting in an increase in coal processing rate. In some embodiments, a coal charging system includes a charging head having opposing wings that extend outwardly and forwardly from the charging head, leaving an open pathway through which coal may be directed toward side edges of the coal bed. In other embodiments, an extrusion plate is positioned on a rearward face of the charging head and oriented to engage and compress coal as the coal is charged along a length of the coking oven. In other embodiments, a false door system includes a false door that is vertically oriented to maximize an amount of coal being charged into the oven.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: March 19, 2019
    Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
    Inventors: John Francis Quanci, Chun Wai Choi, Parthasarathy Kesavan, Katharine E. Russell, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Publication number: 20160319198
    Abstract: The present technology is generally directed to integrated control of coke ovens in a coke plant in order to optimize coking rate, product recovery, byproducts and/or unit lime consumption. Optimization objectives are achieved through controlling certain variables (called control variables) by manipulating available handles (called manipulated variables) subject to constraints and system disturbances that affect the controlled variables.
    Type: Application
    Filed: January 4, 2016
    Publication date: November 3, 2016
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Jack Ziegler, Katie Russell, Mike Muhlbaier, Rakshak Khanna, Sharla Evatt, Milos Kaplerevic, Peter Chun
  • Publication number: 20160060532
    Abstract: The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 3, 2016
    Inventors: John Francis Quanci, Parthasarathy Kesavan, Ung-Kyung Chun, Rajesh Kumar Kandula, Mayela Carolina Fernandez, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass
  • Publication number: 20160060536
    Abstract: The present technology is generally directed to methods of increasing coal processing rates for coke ovens. In various embodiments, the present technology is applied to methods of coking relatively small coal charges over relatively short time periods, resulting in an increase in coal processing rate. In some embodiments, a coal charging system includes a charging head having opposing wings that extend outwardly and forwardly from the charging head, leaving an open pathway through which coal may be directed toward side edges of the coal bed. In other embodiments, an extrusion plate is positioned on a rearward face of the charging head and oriented to engage and compress coal as the coal is charged along a length of the coking oven. In other embodiments, a false door system includes a false door that is vertically oriented to maximize an amount of coal being charged into the oven.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 3, 2016
    Inventors: John Francis Quanci, Chun Wai Choi, Parthasarathy Kesavan, Katharine E. Russell, Khambath Vichitvongsa, Jeffrey Scott Brombolich, Richard Alan Mrozowicz, Edward A. Glass