公开(公告)号：US06620391B2

公开(公告)日：2003-09-16

申请号：US10201835

申请日：2002-07-24

Applicant: Raimund Müller ,  Lothar Hofmann ,  Kurt Schardt ,  Wieland Mathes

Inventor： Raimund Müller ,  Lothar Hofmann ,  Kurt Schardt ,  Wieland Mathes

IPC: B01J800

CPC classification number: F01N3/2066 ,  B01D53/8631 ,  B01D53/8656 ,  B01D53/885 ,  B01F3/04049 ,  B01F5/0065 ,  B01F5/045 ,  B01F2005/0091 ,  F01N13/0097 ,  F01N13/017 ,  F01N2240/20 ,  F01N2240/40 ,  F01N2470/22 ,  F01N2610/02 ,  Y02T10/24

Abstract: Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.

公开(公告)号：US06444177B1

公开(公告)日：2002-09-03

申请号：US08995646

申请日：1997-12-29

Applicant: Raimund Müller ,  Lothar Hofmann ,  Kurt Schardt ,  Wieland Mathes

Inventor： Raimund Müller ,  Lothar Hofmann ,  Kurt Schardt ,  Wieland Mathes

IPC: B01D5386

CPC classification number: F01N3/2066 ,  B01D53/8631 ,  B01D53/8656 ,  B01D53/885 ,  B01F3/04049 ,  B01F5/0065 ,  B01F5/045 ,  B01F2005/0091 ,  F01N13/0097 ,  F01N13/017 ,  F01N2240/20 ,  F01N2240/40 ,  F01N2470/22 ,  F01N2610/02 ,  Y02T10/24

Abstract: Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.

Abstract translation: 要清洁的废气被引入转化和混合管道中，排气沿预定的纵向方向流过管道。 还原剂，例如尿素水溶液，被注入到转化和混合管道中的废气流中。 废气流然后被偏转到与转换和混合管道平行或同轴延伸的反应管道中。 废气然后沿相反方向流过反应管。 还原催化剂设置在反应管道中，其中废气的可还原组分被还原。 以这种方式清洁的废气然后从反应管排出。

公开(公告)号：US06878359B1

公开(公告)日：2005-04-12

申请号：US09711867

申请日：2000-11-13

Applicant: Wieland Mathes ,  Raimund Müller ,  Klaus Rusch ,  Petra Anette Rusch ,  Ralf Sigling

Inventor： Wieland Mathes ,  Raimund Müller ,  Klaus Rusch ,  Petra Anette Rusch ,  Ralf Sigling

IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  B01J8/00 ,  C01B21/00

CPC classification number: B01D53/9431 ,  B01D53/8631

Abstract: The process and the device are provided for the selective catalytic reduction of nitrogen oxides in an oxygen-containing gaseous medium. The reducing agent required for the reaction is prepared in a separate preparation reactor. A substance that can be converted into the reducing agent is introduced into a carrier gas in the preparation reactor and, as a result, is converted by substantially thermal conversion. The energy required for the conversion is provided by the carrier gas.

Abstract translation: 该方法和装置用于选择性催化还原含氧气体介质中的氮氧化物。 反应所需的还原剂在单独的制备反应器中制备。 将可以转化为还原剂的物质引入制备反应器中的载气中，结果通过大量热转化而转化。 转化所需的能量由载气提供。