公开(公告)号：US20170175604A1

公开(公告)日：2017-06-22

申请号：US14978434

申请日：2015-12-22

Applicant: General Electric Company

Inventor： Maruthi Narasinga Rao Devarakonda ,  Michael Url ,  Constantin Dinu

IPC: F01N3/20 ,  F01N13/00 ,  F02C7/26 ,  F01N11/00

CPC classification number: F01N3/208 ,  F01N11/002 ,  F01N13/008 ,  F01N2240/16 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2590/10 ,  F01N2900/0602 ,  F01N2900/1404 ,  F01N2900/1621 ,  F02C6/00 ,  F05D2220/70 ,  F05D2220/74 ,  F05D2270/082 ,  F05D2270/303 ,  Y02T10/24

Abstract: A system includes a nitrous oxide (NOx) conversion system configured to treat emissions from a conversion system, and includes a selective catalytic reduction (SCR) catalyst assembly and a temperature sensor disposed upstream of the SCR catalyst assembly to measure temperature of an exhaust before flowing into the SCR catalyst assembly. The NOx conversion system includes a temperature sensor downstream of the SCR catalyst assembly to measure a temperature of a treated exhaust flow after exiting the SCR catalyst assembly and a controller coupled to the SCR catalyst assembly. The controller receives signals representative of the temperatures to generate a first control signal representative of a desired temperature to heat the exhaust to. The controller receives the first control signal to output a second control signal to regulate a temperature of the exhaust upstream of the SCR catalyst assembly via a heating system.