Exhaust Gas Treatment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 18, 2008
app pub date -
Oct 26, 2006
filing date -
Oct 26, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus for reducing NOx comprising an exhaust conduit (101) of an IC engine (not shown) in which is placed a urea hydrolysis reactor (102) supplied with aqueous urea from urea storage tank (103). Flow of the hot exhaust gas through the exhaust conduit (101) heats the reactor (102) and causes the temperature of the urea therein to rise, promoting its hydrolysis and producing gaseous hydrolysis products. A pressure control valve (106) controls the release of the gaseous hydrolysis products from the reactor to a condenser (107). The condenser (107) is provided with a heat exchanger (108) which has an inlet (109) and an outlet (110) for connection to a coolant supply. When the gaseous hydrolysis gas enters the condenser (107) it is cooled by heat exchange with the engine cooling fluid and the ammonia and steam condense to form a pool of liquid in the bottom of the condenser (107). A dosing valve (112) is provided in the bottom of the condenser (107) to dose the liquid condensate into the exhaust conduit (101) to pass with the exhaust gas through an SCR catalyst on the surface of which the ammonia reacts with the Nox.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully