La1-xSrxAlO3 (x=0 to 0.4) perovskite materials were synthesized by the reverse strike co-precipitation method and their soot oxidation activity was evaluated. All the catalysts synthesized were characterized using XRD, BET specific surface area, FESEM and XPS techniques. As analyzed by XRD, La1-xSrxAlO3 <...

At present, partial oxidation is applied in the filtration processes of biomass hot gas to aid solving blockage problems caused by tar and dust condensates. However, resulting high-temperature oxygen-limited environment, risk polymerization forming soot created during purification processes. Thus, this work established a hardware-in-the-loop simulation model using Lagrangian method coupled with...

Personnel involved: Prof. Jack B. Howard, PI. Department of Chemical Engineering, MIT Dr. Henning Richter, Research Associate, Department of Chemical Engineering, MIT Murray J. Height, Graduate Student, Department of Chemical Engineering, MIT Timothy G. Benish, Graduate Student, Department of Chemical Engineering, MIT Dr. Peter Hebgen, Postdoctoral Associate, Department of Chemical Engineering,...

E. Horozova*, N. Dimcheva and Z. Jordanova Department of Physical and Theoretical Chemistry, University of Plovdiv 24, Tsar Assen St., Plovdiv 4000, Bulgaria Z. Naturforsch. 52c, 639-644 (1997); received May 5/July 3, 1997 Catalase, Immobilized Enzyme, Carbon Materials, Electrochemical and Biocatalytic Activity The adsorption of catalase on two types of soot differing in their structure has bee...

The problem of soot emissions from diesel engines is introduced and the possible solution of combining doped perovskites and microwave (mw) irradiation to "clean up" diesel soot filters is outlined. Eighteen doped perovskite catalysts are synthesized and tested for propane and CO oxidation, which are taken as model components for soot. The activity, selectivity, and SO2 tolerance are compared u...

A set of ceria, ceria-zirconia (Ce 80 at.%, Zr 20 at.%), ceria-praseodymia (Ce 80 at.%, Pr 20 at.%) and ceria-zirconia-praseodymia (Ce 80 at.%, Zr 10 at.% and Pr 10 at.%) catalysts has been prepared by the solution combustion synthesis (SCS). The effects of Zr and Pr as dopants on ceria have been studied in CO and soot oxidation reactions. All the prepared catalysts have been characterized by c...

Emissions from solid-fuel cookstoves, used by almost three billion people worldwide, create major issues for both human health and the environment. These emissions cause an estimated 4.3 million premature deaths annually and significantly contribute to environmental issues such as global climate change. One of the harmful emissions is soot and a promising option for reducing soot emissions from...