NDLI: CaO-MgO CATALYSTS FOR SOOT COMBUSTION: KNO3 AS SOURCE FOR DOPING WITH POTASSIUM

Content Provider	Scientific Electronic Library Online (SciELO)
Author	JIMÉNEZ, ROMEL GARCÍA, XIMENA GORDON, ALFREDO L
Abstract	MgO, CaO, an equal ratio mixture of the oxides (50-CaO) and a sample with 10% potassium added to the previous mixture, showed increasing activity for the catalytic combustion of carbon black, a model compound for soot. These catalysts were characterized by XPS, BET, DRIFTS and AAS. Activity was measured by TGA and by TPO; CO and CO2 concentration in the outlet gas flow were measured by NDIR. Pure MgO was barely active. The 50-CaO catalyst was as active as the pure CaO in spite of a lower content of calcium. This was attributed to greater contact area and better dispersion of calcium, lesser bulk and surface carbonation, cooperative effect of magnesium that diminishes the stability of adsorbed surface compounds, and a greater accessibility of O2(g) to calcium sites. Potassium introduction over the 50-CaO produced high activity, related to a increase of the surface concentration of oxygen on the catalyst and larger CO2/CO ratio in the exit gases. Moreover, potassium addition resulted in a lower content of calcium on the surface, hence less carbonation of the catalyst
Related Links	https://scielo.conicyt.cl/scielo.php?script=sci_abstract&pid=S0717-97072005000400004&lng=en&nrm=iso https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400004&lng=en&nrm=iso
Starting Page	651
Ending Page	665
Page Count	15
File Format	PDF
ISSN	07179707
DOI	10.4067/S0717-97072005000400004
Journal	Journal of the Chilean Chemical Society
Issue Number	4
Volume Number	50
Language	English
Publisher	Sociedad Chilena de Química
Publisher Date	2005-12-01
Publisher Institution	Universidad de Concepción Depto. de Ingeniería Química
Publisher Place	Chile
Access Restriction	Open
Subject Keyword	Soot Catalytic combustion CaO-MgO mixtures Potassium
Content Type	Text
Resource Type	Article
Subject	Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

About the active phases of KNO$_{3}$/MgO for catalytic soot combustion

Potassium Stability in Soot Combustion Perovskite Catalysts

Magnesia-supported potassium oxide catalysts for soot combustion: effect of Fe addition on the catalyst activity and stability

Enhanced Oxygen Vacancies in Ce-Doped $SnO_{2}$ Nanofibers for Highly Efficient Soot Catalytic Combustion

Preparation of Cordierite Monolith Catalysts with the Coating of K-Modified Spinel $MnCo_{2}O_{4}$ Oxide and Their Catalytic Performances for Soot Combustion

Influence of Potassium and NO Addition on Catalytic Activity in Soot Combustion and Surface Properties of Iron and Manganese Spinels

Preparation of K Modified Three-Dimensionally Ordered Macroporous $MnCeO_{x}/Ti_{0.7}Si_{0.3}O_{2}$ Catalysts and Their Catalytic Performance for Soot Combustion

Structural Investigation of the Carbon Deposits on $Ni/Al_{2}O_{3}$ Catalyst Modified by CaO-MgO for the Biogas Dry Reforming Reaction

Influence of Potassium Doping on the Activity and the Sulfur Poisoning Resistance of Soot Oxidation Catalysts

CaO-MgO CATALYSTS FOR SOOT COMBUSTION: KNO3 AS SOURCE FOR DOPING WITH POTASSIUM

Similar Documents

About the active phases of KNO$_{3}$/MgO for catalytic soot combustion

Potassium Stability in Soot Combustion Perovskite Catalysts

Magnesia-supported potassium oxide catalysts for soot combustion: effect of Fe addition on the catalyst activity and stability

Enhanced Oxygen Vacancies in Ce-Doped $SnO_{2}$ Nanofibers for Highly Efficient Soot Catalytic Combustion

Preparation of Cordierite Monolith Catalysts with the Coating of K-Modified Spinel $MnCo_{2}O_{4}$ Oxide and Their Catalytic Performances for Soot Combustion

Influence of Potassium and NO Addition on Catalytic Activity in Soot Combustion and Surface Properties of Iron and Manganese Spinels

Preparation of K Modified Three-Dimensionally Ordered Macroporous $MnCeO_{x}/Ti_{0.7}Si_{0.3}O_{2}$ Catalysts and Their Catalytic Performance for Soot Combustion

Structural Investigation of the Carbon Deposits on $Ni/Al_{2}O_{3}$ Catalyst Modified by CaO-MgO for the Biogas Dry Reforming Reaction

Influence of Potassium Doping on the Activity and the Sulfur Poisoning Resistance of Soot Oxidation Catalysts

CaO-MgO CATALYSTS FOR SOOT COMBUSTION: KNO3 AS SOURCE FOR DOPING WITH POTASSIUM