Invention Application
US20160281619A1 SYSTEMS AND METHODS FOR DESULFATION OF AN OXIDATION CATALYST FOR DUAL FUEL ENGINES
审中-公开
用于消除双燃料发动机的氧化催化剂的系统和方法
- Patent Title: SYSTEMS AND METHODS FOR DESULFATION OF AN OXIDATION CATALYST FOR DUAL FUEL ENGINES
- Patent Title (中): 用于消除双燃料发动机的氧化催化剂的系统和方法
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Application No.: US15076213Application Date: 2016-03-21
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Publication No.: US20160281619A1Publication Date: 2016-09-29
- Inventor: Prachetas A. Kale , Timothy P. Lutz , Junhui Li , Ashok Kumar , Krishna Kamasamudram , C. Larry Bruner
- Applicant: Cummins Inc.
- Main IPC: F02D41/02
- IPC: F02D41/02 ; F01N3/20 ; F02D41/00 ; F01N13/00 ; F01N3/08 ; B01D53/94 ; F01N3/10
Abstract:
A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.
Public/Granted literature
- US10100689B2 Systems and methods for desulfation of an oxidation catalyst for dual fuel engines Public/Granted day:2018-10-16
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