公开(公告)号：US10655518B2

公开(公告)日：2020-05-19

申请号：US15437785

申请日：2017-02-21

Applicant: General Electric Company

Inventor： Parag Prakash Kulkarni ,  Naresh Kumar Amineni ,  Lewis Berkley Davis, Jr. ,  Gordon Raymond Smith

IPC: F01N3/021 ,  F01N3/035 ,  F01D25/30 ,  F02C6/18 ,  F02C7/26 ,  F02C9/28 ,  F01K23/10 ,  F01K7/18

Abstract: Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads.

公开(公告)号：US20180238214A1

公开(公告)日：2018-08-23

申请号：US15437785

申请日：2017-02-21

Applicant: General Electric Company

Inventor： Parag Prakash Kulkarni ,  Naresh Kumar Amineni ,  Lewis Berkley Davis, JR. ,  Gordon Raymond Smith

IPC: F01N3/021 ,  F01D25/30 ,  F02C6/18 ,  F01K7/16 ,  F01K23/10 ,  F01N3/035

CPC classification number: F01N3/0211 ,  F01D25/305 ,  F01K7/18 ,  F01K23/10 ,  F01K23/103 ,  F01K23/106 ,  F01N3/035 ,  F01N2250/02 ,  F01N2610/05 ,  F02C6/18 ,  F02C7/26 ,  F02C9/28 ,  F05D2220/72 ,  F05D2270/08 ,  F05D2270/082 ,  Y02E20/16

Abstract: Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads.

公开(公告)号：US11598225B2

公开(公告)日：2023-03-07

申请号：US16890990

申请日：2020-06-02

Applicant: General Electric Company

Inventor： Parag Prakash Kulkarni ,  Szymon Pawel Modelski ,  Craig A. Matis ,  Naresh Kumar Amineni

IPC: F01D25/30 ,  F02C3/30 ,  F01D21/00 ,  F02C6/08 ,  F02C7/18 ,  F23J15/00

Abstract: An emissions control system for a gas turbine system includes a reducing agent supply, at least one sensor, at least one valve, and a controller. The reducing agent supply has one or more conduits configured to couple to one or more fluid pathways of the gas turbine system, which are fluidly coupled to a flow path of an exhaust gas from a combustor through a turbine of the gas turbine system. The at least one sensor is configured to obtain a feedback of one or more parameters of the gas turbine system, which are indicative of a visibility of emissions of the exhaust gas. The at least one valve is coupled to the reducing agent supply. The controller is communicatively coupled to the at least one sensor and the at least one valve, such that, in response to the feedback, the controller adjusts the at least one valve to adjust a flow of the reducing agent to reduce the visibility of the emissions of the exhaust gas.

公开(公告)号：US20210372623A1

公开(公告)日：2021-12-02

申请号：US16890990

申请日：2020-06-02

Applicant: General Electric Company

Inventor： Parag Prakash Kulkarni ,  Szymon Pawel Modelski ,  Craig A. Matis ,  Naresh Kumar Amineni

IPC: F23R3/40 ,  F02C7/18 ,  F02C6/08 ,  F01D21/00

Abstract: An emissions control system for a gas turbine system includes a reducing agent supply, at least one sensor, at least one valve, and a controller. The reducing agent supply has one or more conduits configured to couple to one or more fluid pathways of the gas turbine system, which are fluidly coupled to a flow path of an exhaust gas from a combustor through a turbine of the gas turbine system. The at least one sensor is configured to obtain a feedback of one or more parameters of the gas turbine system, which are indicative of a visibility of emissions of the exhaust gas. The at least one valve is coupled to the reducing agent supply. The controller is communicatively coupled to the at least one sensor and the at least one valve, such that, in response to the feedback, the controller adjusts the at least one valve to adjust a flow of the reducing agent to reduce the visibility of the emissions of the exhaust gas.

公开(公告)号：US10662841B2

公开(公告)日：2020-05-26

申请号：US15437794

申请日：2017-02-21

Applicant: General Electric Company

Inventor： Parag Prakash Kulkarni ,  Naresh Kumar Amineni ,  Lewis Berkley Davis, Jr. ,  Gordon Raymond Smith

IPC: F01N3/021 ,  F01N3/20 ,  F01D25/30 ,  F02C6/18 ,  F01K7/16 ,  F01K23/10 ,  F01N3/035

Abstract: Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads.

公开(公告)号：US20180238215A1

公开(公告)日：2018-08-23

申请号：US15437794

申请日：2017-02-21

Applicant: General Electric Company

Inventor： Parag Prakash Kulkarni ,  Naresh Kumar Amineni ,  Lewis Berkley Davis, JR. ,  Gordon Raymond Smith

IPC: F01N3/021 ,  F01D25/30 ,  F02C6/18 ,  F01K7/16 ,  F01K23/10 ,  F01N3/035 ,  F01N3/20

CPC classification number: F01N3/0211 ,  F01D25/305 ,  F01K7/16 ,  F01K23/10 ,  F01N3/035 ,  F01N3/2066 ,  F01N2250/02 ,  F01N2570/10 ,  F02C6/18 ,  F05D2220/32 ,  F05D2220/72 ,  F05D2270/08 ,  Y02E20/16 ,  Y02T10/24

Abstract: Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads.