1
|
Most Recent Advances in Diesel Engine Catalytic Soot Abatement: Structured Catalysts and Alternative Approaches. Catalysts 2020. [DOI: 10.3390/catal10070745] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Diesel engine emissions are typically composed of several hundred chemical compounds, partly present in the gas phase and partly in solid phase as particles, the so-called particulate matter or soot. The morphology of the catalyst is an important characteristic of soot particles’ abatement, since a good contact between catalyst and soot is mandatory. For practical purposes, the active species should be supported as a film on the structured carrier, in order to allow simultaneous soot filtration and combustion. This review focuses on the most recent advances in the development of structured catalysts for diesel engine catalytic soot combustion, characterized by different active species and supports, as well as by different geometric configurations (monoliths, foams, ceramic papers, or wire mesh); the most important peculiar properties are highlighted and summarized. Moreover, a critical review of the most recent advances in modeling studies is also presented in this paper. In addition, some highlights on some of the most recent alternative approaches proposed for limiting the soot emissions from diesel engines have been given, delineating feasible alternatives to the classical strategies nowadays used.
Collapse
|
2
|
Mahamulkar S, Yin K, Agrawal PK, Davis RJ, Jones CW, Malek A, Shibata H. Formation and Oxidation/Gasification of Carbonaceous Deposits: A Review. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b02220] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shilpa Mahamulkar
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Kehua Yin
- Department
of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Pradeep K. Agrawal
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Robert J. Davis
- Department
of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Christopher W. Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Andrzej Malek
- Hydrocarbons R&D, The Dow Chemical Company, Midland, Michigan 48674, United States
| | - Hirokazu Shibata
- Hydrocarbons R&D, Dow Chemicals Benelux, NL 4530 AA, Terneuzen, The Netherlands
| |
Collapse
|
3
|
|
4
|
Christensen JM, Deiana D, Grunwaldt JD, Jensen AD. Ceria Prepared by Flame Spray Pyrolysis as an Efficient Catalyst for Oxidation of Diesel Soot. Catal Letters 2014. [DOI: 10.1007/s10562-014-1319-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|