-
公开(公告)号：US11585254B2
公开(公告)日：2023-02-21
申请号：US17671250
申请日：2022-02-14
摘要： A selective catalytic reduction system control system (10) and method of its use include an ammonia (“NH3”) slip sensor (13) located within an interior space (27) of an exhaust stack (15) of a selective catalytic reactor (31), toward an inlet end (25) of the stack (15); a housing (17) located within the interior space of the exhaust stack; the housing including face panels 19; a nitrogen oxides (“NOx”) sensor (11) contained within an interior space (29) defined by the face panels of the housing, at least two of the face panels (19I, 19O) containing an oxidation catalyst; and a dosing controller (59) in communication with the NH3 and NOx sensors, the dosing controller including a microprocessor with dosing logic embedded thereon. The housing with oxidation catalyst acts as a linear box, isolating the NOx sensor from NH3 slip, linearizing the NOx sensor signal.
-
公开(公告)号：US20220297063A1
公开(公告)日：2022-09-22
申请号：US17833707
申请日：2022-06-06
IPC分类号： B01D53/94 , B01J21/02 , B01J23/42 , B01J35/04 , B01J35/10 , B01J37/02 , B01J37/08 , F01N3/28
摘要： A diesel engine emissions catalyst which may be used to fill a niche between standard oxidation catalyst and diesel particulate filters for control of diesel particulate matter. The catalyst includes a structure (substrate) comprising one or more coated, corrugated micro-expanded metal foil layers. The coated surface may be a high surface area, stabilized, and promoted washcoat layer. The corrugated pattern may include a herringbone-style pattern that, when in use, is oriented in a longitudinal direction of the diesel engine exhaust flow. The micro-expanded metal foil provides small openings or eyes that, as the exhaust flow passes through the catalyst (transverse to the eye opening), particulates in the flow impinge on the surface and becomes trapped in the eyes. The catalyst may be used to treat a locomotive engine exhaust stream and may be used with a selective catalyst reduction system.
-
公开(公告)号：US20210231039A1
公开(公告)日：2021-07-29
申请号：US17052741
申请日：2019-05-06
摘要： A selective catalytic reduction system control system (10) and method of its use include an ammonia (“NH3”) slip sensor (13) located within an interior space (27) of an exhaust stack (15) of a selective catalytic reactor (31), toward an inlet end (25) of the stack (15); a housing (17) located within the interior space of the exhaust stack; the housing including face panels 19; a nitrogen oxides (“NOx”) sensor (11) contained within an interior space (29) defined by the face panels of the housing, at least two of the face panels (19I, 19O) containing an oxidation catalyst; and a dosing controller (59) in communication with the NH3 and NOx sensors, the dosing controller including a microprocessor with dosing logic embedded thereon. The housing with oxidation catalyst acts as a linear box, isolating the NOx sensor from NH3 slip, linearizing the NOx sensor signal.
-
公开(公告)号：US20230031827A1
公开(公告)日：2023-02-02
申请号：US17937130
申请日：2022-09-30
发明人： James M. Wurtz, JR. , Scott Gatewood , Michael Thomason , D. Todd Jacobs , Daniel R. Piche , Cody J. Molls , H. Peter Claussen , John W. Robinson, JR.
摘要： A diesel-emissions reduction unit having an inlet adapted to receive an exhaust stream of the diesel engine; a diesel oxidation trap catalyst located adjacent the inlet; a dosing controller and an injection lance arranged to meter aqueous NH3 into the exhaust stream; a NOx concentration sensor and a NH3 concentration sensor with at least one oxidation catalyst panel arranged to isolate the NOx concentration sensor from NH3 in the exhaust stream; and an exhaust heater arranged to heat the exhaust stream of the diesel engine toward the inlet of the diesel emissions reduction unit.
-
公开(公告)号：US11248509B2
公开(公告)日：2022-02-15
申请号：US17052741
申请日：2019-05-06
摘要： A selective catalytic reduction system control system (10) and method of its use include an ammonia (“NH3”) slip sensor (13) located within an interior space (27) of an exhaust stack (15) of a selective catalytic reactor (31), toward an inlet end (25) of the stack (15); a housing (17) located within the interior space of the exhaust stack; the housing including face panels 19; a nitrogen oxides (“NOx”) sensor (11) contained within an interior space (29) defined by the face panels of the housing, at least two of the face panels (19I, 19O) containing an oxidation catalyst; and a dosing controller (59) in communication with the NH3 and NOx sensors, the dosing controller including a microprocessor with dosing logic embedded thereon. The housing with oxidation catalyst acts as a linear box, isolating the NOx sensor from NH3 slip, linearizing the NOx sensor signal.
-
6.发明公开公开(公告)号：US20230235894A1
公开(公告)日：2023-07-27
申请号：US18159557
申请日：2023-01-25
发明人： John W. Robinson, JR. , Jeff D. Italiano , Amber K. Kraft , Jared P. Bauer , Jordan N. L. Patrick
CPC分类号： F24C15/2021 , F24C15/322 , F24C15/2014
摘要： Embodiments of this disclosure reduce an oven's emission of volatile organic compounds when air frying. The catalyst does not require a self-contained heating assembly but instead is adapted for connection to at least one of a suction side and a discharge side of the circulation fan. The catalyst may be in the form of a screen or a foil bundle and have a mass loading of 10 g to 75 g per cubic foot of catalyst volume. The screen is sized for connection to the circulation fan and includes a corrugated pattern and coated with the catalyst on at least half of the screen. The foil bundle has a cell density in a range of 20 cells to 50 cells per square inch and is sized for location in a corner of the heating elements. The foil bundle can include a slew or herringbone cell pattern.
-
7.发明公开公开(公告)号：US20230193804A1
公开(公告)日：2023-06-22
申请号：US18171526
申请日：2023-02-20
CPC分类号： F01N3/208 , F01N3/103 , F01N13/008 , F01N2560/026 , F01N2610/02 , F01N2900/14 , F01N2900/16 , F01N2560/021
摘要： A selective catalytic reduction system control system (10) and method of its use include an ammonia (“NH3”) slip sensor (13) located within an interior space (27) of an exhaust stack (15) of a selective catalytic reactor (31), toward an inlet end (25) of the stack (15); a housing (17) located within the interior space of the exhaust stack; the housing including face panels 19; a nitrogen oxides (“NOx”) sensor (11) contained within an interior space (29) defined by the face panels of the housing, at least two of the face panels (19I, 19O) containing an oxidation catalyst; and a dosing controller (59) in communication with the NH3 and NOx sensors, the dosing controller including a microprocessor with dosing logic embedded thereon. The housing with oxidation catalyst acts as a linear box, isolating the NOx sensor from NH3 slip, linearizing the NOx sensor signal.
-
公开(公告)号：US20210322924A1
公开(公告)日：2021-10-21
申请号：US17052735
申请日：2019-01-14
IPC分类号： B01D53/94 , B01J23/42 , B01J37/02 , B01J35/10 , B01J35/04 , B01J21/02 , B01J37/08 , F01N3/28
摘要： A diesel engine emissions catalyst which may be used to fill a niche between standard oxidation catalyst and diesel particulate filters for control of diesel particulate matter. The catalyst includes a structure (substrate) comprising one or more coated, corrugated micro-expanded metal foil layers. The coated surface may be a high surface area, stabilized, and promoted washcoat layer. The corrugated pattern may include a herringbone-style pattern that, when in use, is oriented in a longitudinal direction of the diesel engine exhaust flow. The micro-expanded metal foil provides small openings or eyes that, as the exhaust flow passes through the catalyst (transverse to the eye opening), particulates in the flow impinge on the surface and becomes trapped in the eyes. The catalyst may be used to treat a locomotive engine exhaust stream and may be used with a selective catalyst reduction system.
-
公开(公告)号：US10302608B1
公开(公告)日：2019-05-28
申请号：US15425721
申请日：2017-02-06
摘要： A system and method for non-destructive testing of a monolith catalyst element includes a a piping arrangement located above and below the element that seals against a portion of the element. A test fluid passes between the piping and therefore through the portion of the sealed catalyst section. Ports located in the piping allow for sampling of the fluid before and after the catalyst section. The catalyst element may then be repositioned for testing of a second portion of the element.
-
公开(公告)号：US09562880B1
公开(公告)日：2017-02-07
申请号：US14753425
申请日：2015-06-29
IPC分类号： G01N31/10
CPC分类号： G01N31/10 , F01N11/00 , F01N2550/02 , F01N2900/0406 , F01N2900/1621 , Y02T10/47
摘要： A system and method for non-destructive testing of a monolith catalyst element includes an inlet and outlet piping arrangement seal against opposing face surfaces of the catalyst element and permit at least a portion of the catalyst element to be tested. A gap between the surface on which the catalyst element rests and the inlet piping prevents or reduces heat transfer between the piping and the surface. A test fluid passes between the piping and therefore through the portion of the sealed catalyst section. Ports located in the piping allow for sampling of the fluid before and after the catalyst section. The catalyst element may then be repositioned on the surface for testing of a second portion of the element. Alternatively, the catalyst element and its housing can be placed on a pivot table so the housed catalyst element can be tested.
摘要翻译： 用于整体式催化剂元件的非破坏性测试的系统和方法包括抵靠催化剂元件的相对表面的入口和出口管道装置密封件，并允许要测试的催化剂元件的至少一部分。 催化剂元件所在的表面与入口配管之间的间隙防止或减少管道和表面之间的热传递。 测试流体在管道之间通过并因此通过密封的催化剂部分的部分。 位于管道中的端口允许在催化剂部分之前和之后对流体进行取样。 催化剂元件然后可以重新定位在表面上，以测试元件的第二部分。 或者，催化剂元件及其壳体可以放置在枢轴台上，从而可以测试所容纳的催化剂元件。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.014 秒)
