公开(公告)号：US12140064B1

公开(公告)日：2024-11-12

申请号：US18654370

申请日：2024-05-03

Applicant: GM Global Technology Operations LLC

Inventor： Bryan D. Axe ,  Sarah Funk ,  Eric Darvin Thomas

IPC: F01N3/20 ,  B01D46/82 ,  B01D53/94 ,  F01N3/023 ,  F01N3/10 ,  F01N3/28 ,  F01N13/00 ,  F02D41/00 ,  F02D41/02 ,  F02D41/40

Abstract: A method of aftertreatment regeneration includes routing exhaust gases from a diesel engine through an exhaust system and initiating a nitrogen dioxide based aftertreatment regeneration of a diesel particulate filter (DPF) by at least partially de-activating a first DEF injector and an upstream selective catalyst reducer (SCR), increasing levels of Nitric Oxide within exhaust gas from the engine, establishing and maintaining an target exhaust gas temperature at an inlet of the DPF by actively controlling combustion characteristics of the engine, converting, with a diesel oxidation catalyst, (DOC) NO within the exhaust gas entering the DOC to NO2, and converting solid carbon-based particulate matter that has accumulated within the DPF to gaseous carbon dioxide (CO2) and NO by using NO2 as an oxidant.

公开(公告)号：US20240024809A1

公开(公告)日：2024-01-25

申请号：US18474339

申请日：2023-09-26

Applicant: Metalmark Innovations, PBC

Inventor： Elijah SHIRMAN ,  Tanya Shirman ,  Sissi Liu

IPC: B01D46/82 ,  B01D46/24 ,  A61L9/00 ,  B01D39/16 ,  B01D39/20 ,  C02F1/00 ,  C02F1/72

CPC classification number: B01D46/82 ,  B01D46/24491 ,  B01D46/2476 ,  A61L9/00 ,  B01D39/1676 ,  B01D39/2027 ,  B01D39/2055 ,  C02F1/001 ,  C02F1/725 ,  A61L2209/14 ,  A61L2209/21 ,  B01D2201/184 ,  B01D2201/62 ,  B01D2239/0442 ,  B01D2239/0471 ,  B01D2239/1216 ,  B82Y35/00

Abstract: In one aspect, a material structure is disclosed, which includes a macroscopic porous substrate configured to receive a flow of a medium for passage of at least a portion thereof through the porous substrate. At least one porous coating is disposed on at least a portion of an inner surface of the porous substrate, wherein the porous coating comprises a matrix having a plurality of interconnected passages. The porous substrate and the coating are configured to treat at least one contaminant, if any, present in the flowing medium.

公开(公告)号：US11772079B2

公开(公告)日：2023-10-03

申请号：US17064929

申请日：2020-10-07

Applicant: South Bank University Enterprises Ltd.

Inventor： Hari Upadhyaya ,  Ali Salimian ,  Arjang Aminishahsavarani

IPC: F01N3/022 ,  B01J23/83 ,  B01D39/20 ,  B01D46/00 ,  B01D46/16 ,  B01D46/42 ,  B01J23/10 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  B01J37/08 ,  B01D46/60 ,  B01D46/82 ,  B01D46/84 ,  F01N3/021 ,  F01N3/027 ,  F01N13/16

CPC classification number: B01J23/83 ,  B01D39/2068 ,  B01D46/0001 ,  B01D46/16 ,  B01D46/4245 ,  B01D46/60 ,  B01D46/82 ,  B01D46/84 ,  B01J23/10 ,  B01J35/04 ,  B01J37/0036 ,  B01J37/0215 ,  B01J37/08 ,  F01N3/022 ,  F01N3/027 ,  F01N3/0215 ,  F01N13/16 ,  B01D2239/10 ,  B01D2273/22 ,  B01D2279/30 ,  F01N2330/06

Abstract: A Diesel Particulate Filter (DPF) assembly configured to be incorporated in the exhaust gas stream, the DPF assembly comprising: Quartz/Composite ceramic mixture disposed as filter elements, mechanical support components and optional electrical soot removal solutions including electrical, di-electrical and microwave solutions.

公开(公告)号：US11753982B2

公开(公告)日：2023-09-12

申请号：US17577108

申请日：2022-01-17

Applicant: VOLVO TRUCK CORPORATION

Inventor： Gert-Ove Wahlström

IPC: F01N13/18 ,  B01D46/82 ,  B01D53/94 ,  F01N3/022 ,  F01N3/20 ,  F01N3/28 ,  F01N3/021 ,  F01N13/00

CPC classification number: F01N13/1888 ,  B01D46/82 ,  B01D53/94 ,  B01D53/9431 ,  F01N3/022 ,  F01N3/0211 ,  F01N3/2066 ,  F01N3/281 ,  F01N3/2803 ,  F01N3/2821 ,  F01N3/2839 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/017 ,  F01N13/18 ,  F01N2330/30 ,  F01N2450/02 ,  F01N2450/22 ,  F01N2450/24 ,  F01N2450/30

Abstract: The invention relates to a method for replacing an exhaust aftertreatment component of an exhaust aftertreatment system in a vehicle or vessel. The exhaust aftertreatment system is delimited by an outer casing and comprises a first sleeve, which extends in an axial direction and contains a first exhaust aftertreatment component mounted directly in the first sleeve. The method comprises the steps of:



removing the first exhaust aftertreatment component from the first sleeve, the first sleeve thereby remaining intact within the outer casing,
providing a second exhaust aftertreatment component being mounted in a second sleeve, the second sleeve being configured to fit within the first sleeve, and
mounting the second sleeve with the second exhaust aftertreatment component in the first sleeve by inserting the second sleeve into the first sleeve in the axial direction thereof.

公开(公告)号：US11639478B2

公开(公告)日：2023-05-02

申请号：US17727747

申请日：2022-04-23

Applicant: ARIES CLEAN TECHNOLOGIES LLC

Inventor： Matthew Newman ,  Joel Thornton ,  Brandon Davis ,  Renus Kelfkens ,  Ron Hudson ,  Mark Robertson

IPC: B01D46/00 ,  C02F11/13 ,  C10J3/84 ,  C10J3/20 ,  B01D53/78 ,  B01D53/48 ,  C10J3/72 ,  B01D46/71 ,  B01D45/16 ,  B01D46/82

Abstract: An apparatus and methods to eliminate PFAS from wastewater biosolids through fluidized bed gasification. The gasifier decomposes the PFAS in the biosolids at temperatures of 900-1800° F. Synthesis gas (syngas) exits the gasifier which is coupled to a thermal oxidizer and is combusted at temperatures of 1600-2600° F. This decomposes PFAS in the syngas and creates flue gas. Heat can be recovered from the flue gas by cooling the flue gas to temperatures of 400-1200° F. in a heat exchanger that is coupled with the thermal oxidizer. Cooled flue gas is mixed with hydrated lime, enhancing PFAS decomposition, with the spent lime filtered from the cooled flue gas using a filter system that may incorporate catalyst impregnated filter elements. The apparatus and methods thereby eliminate PFAS from wastewater biosolids and control emissions in the resulting flue gas.

公开(公告)号：US11786856B2

公开(公告)日：2023-10-17

申请号：US17153098

申请日：2021-01-20

Applicant: NGK Insulators, Ltd.

Inventor： Kazuya Yuki

IPC: B01D46/24 ,  B01D53/94 ,  B01J35/04 ,  F01N3/28 ,  F01N3/022 ,  F01N3/035 ,  B01D46/82

CPC classification number: B01D46/2474 ,  B01D46/247 ,  B01D46/2476 ,  B01D46/2482 ,  B01D46/2484 ,  B01D46/2486 ,  B01D46/82 ,  B01D53/94 ,  B01J35/04 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/2803 ,  B01D2255/9155 ,  B01D2255/9207 ,  B01D2279/30 ,  F01N2330/02 ,  F01N2330/30

Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion. The partition wall defining outflow cells includes an exhaust-gas purifying catalyst at least at a part of a region of 0 to 80% of a thickness of the partition wall and includes a portion that does not include the exhaust-gas purifying catalyst in a region of exceeding 80% and being 100% or less of the thickness of the partition wall, and the partition wall defining the inflow cells is not loaded with the exhaust-gas purifying catalyst on the surface, or is loaded with the exhaust-gas purifying catalyst so that a percentage of a ratio of an area of a range loaded with the exhaust-gas purifying catalyst to a surface area of the partition wall defining the inflow cells is 10% or less.

公开(公告)号：US20230242826A1

公开(公告)日：2023-08-03

申请号：US18127655

申请日：2023-03-28

Applicant: ARIES CLEAN TECHNOLOGIES LLC

Inventor： Matthew Newman ,  Joel Thornton ,  Brandon Davis ,  Renus Kelfkens ,  Ron Hudson ,  Mark Robertson

IPC: C10J3/84 ,  B01D45/16 ,  B01D53/48 ,  B01D53/78 ,  C02F11/13 ,  C10J3/20 ,  C10J3/72 ,  B01D46/71 ,  B01D46/82

CPC classification number: C10J3/84 ,  B01D45/16 ,  B01D53/48 ,  B01D53/78 ,  C02F11/13 ,  C10J3/20 ,  C10J3/726 ,  B01D46/71 ,  B01D46/82 ,  C10J2300/1618 ,  C10J2300/0946 ,  C10J2300/0909 ,  C10J2300/1628 ,  C10J2200/15 ,  C10J2300/0916 ,  C10J2300/1606 ,  C10J2300/1643 ,  B01D46/00

Abstract: Apparatus and methods to eliminate PFAS from wastewater biosolids through fluidized bed gasification. The gasifier decomposes the PFAS in the biosolids at temperatures of 900-1800° F. Syngas exits the gasifier which is coupled to a thermal oxidizer and combusts at temperatures of 1600-2600° F. This decomposes PFAS in the syngas and creates flue gas. Heat is recovered from the flue gas by cooling the flue gas to temperatures of 400-1200° F. in a heat exchanger coupled with the thermal oxidizer. Various methods inject moisture into the gas stream, controlling temperature through evaporative cooling and/or injecting chemicals that react with gas stream components. Cooled flue gas mixes with hydrated lime capturing decomposed PFAS molecules with spent lime filtered from the cooled flue gas using a filter system that may incorporate catalyst impregnated filter elements, eliminating PFAS from wastewater biosolids and controlling emissions in the resulting flue gas.

公开(公告)号：US11708775B2

公开(公告)日：2023-07-25

申请号：US17701135

申请日：2022-03-22

Applicant: Cummins Emission Solutions Inc.

Inventor： Yujun Wang ,  John K. Heichelbech ,  Changsheng C. Su

IPC: F01N3/02 ,  B01D46/00 ,  B01D46/46 ,  F01N3/10 ,  F01N3/20 ,  B01D53/94 ,  F01N3/032 ,  B01D46/62 ,  B01D46/82 ,  B01D46/44 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N11/00

CPC classification number: F01N3/032 ,  B01D46/0086 ,  B01D46/0087 ,  B01D46/444 ,  B01D46/446 ,  B01D46/448 ,  B01D46/46 ,  B01D46/62 ,  B01D46/82 ,  B01D53/944 ,  B01D53/9418 ,  B01D53/9477 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N11/002 ,  B01D2255/904 ,  B01D2279/30 ,  F01N2410/04 ,  F01N2550/04

Abstract: A filtration assembly for removing particulate matter from exhaust gas produced by an engine, including: a first filter; a second filter positioned downstream of the first filter; and a valve including: a first ring defining a plurality of first openings, and a second ring defining a plurality of second openings, the second ring abutting the first ring. The valve is moveable between a closed position in which the plurality of first openings are misaligned with the plurality of second openings to prevent a fluid from flowing through the plurality of first and second openings, and an open position in which the second ring is rotated relative to the first ring such that the plurality of first openings are aligned with the plurality of second openings allowing the fluid to flow therethrough. A first end of the valve is positioned at an outlet of the first filter, and a second end of the valve is positioned at an inlet of the second filter. In the closed position of the valve, substantially all of the exhaust gas flows through the second filter, and in the open position of the valve, at least a portion of the exhaust gas flows through the valve and bypasses the second filter.

公开(公告)号：US20230059322A1

公开(公告)日：2023-02-23

申请号：US17727747

申请日：2022-04-23

Applicant: ARIES CLEAN TECHNOLOGIES LLC

Inventor： Matthew Newman ,  Joel Thornton ,  Brandon Davis ,  Renus Kelfkens ,  Ron Hudson ,  Mark Robertson

IPC: C10J3/84 ,  B01D46/82 ,  C10J3/20 ,  B01D53/78 ,  B01D53/48 ,  C10J3/72 ,  B01D46/71 ,  C02F11/13 ,  B01D45/16

Abstract: An apparatus and methods to eliminate PFAS from wastewater biosolids through fluidized bed gasification. The gasifier decomposes the PFAS in the biosolids at temperatures of 900-1800° F. Synthesis gas (syngas) exits the gasifier which is coupled to a thermal oxidizer and is combusted at temperatures of 1600-2600° F. This decomposes PFAS in the syngas and creates flue gas. Heat can be recovered from the flue gas by cooling the flue gas to temperatures of 400-1200° F. in a heat exchanger that is coupled with the thermal oxidizer. Cooled flue gas is mixed with hydrated lime, enhancing PFAS decomposition, with the spent lime filtered from the cooled flue gas using a filter system that may incorporate catalyst impregnated filter elements. The apparatus and methods thereby eliminate PFAS from wastewater biosolids and control emissions in the resulting flue gas.

公开(公告)号：US11480082B2

公开(公告)日：2022-10-25

申请号：US17280420

申请日：2018-09-28

Applicant: Cummins Emission Solutions Inc.

Inventor： Yujun Wang ,  John K. Heichelbech ,  Changsheng C. Su

IPC: F01N3/00 ,  F01N3/032 ,  B01D46/62 ,  B01D46/82 ,  B01D46/00 ,  B01D46/44 ,  B01D46/46 ,  B01D53/94 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20 ,  F01N11/00

Abstract: An aftertreatment system comprises a SCR system, a first filter, and a second filter disposed downstream of the first filter and a bypass conduit providing a flow path bypassing the second filter. A valve is operatively coupled to the bypass conduit and is moveable between a closed position in which the exhaust gas flows through the second filter, and an open position in which at least a portion of the exhaust gas flows through the bypass conduit. A controller is operatively coupled to the valve configured to adjust the valve based on a first filtration efficiency of the first filter to cause the exhaust gas expelled into the environment from the aftertreatment to have a particulate matter count meeting particulate matter emission standards.