Results 81 to 90 of about 127,520 (303)
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Acid catalyzed conversion of durene by isomerization, disproportionation, and transalkylation is of interest to the development of a methanol‐to‐jet process to reduce the amount of durene in the kerosene. It was of interest to determine whether durene conversion could be performed at a temperature lower than 350°C.
Aida G. Velasco Ortiz +2 more
wiley +1 more source
Labeling of silica sand with 99mTc for obtaining a solid radiotracer
Nucleus, 2020 To obtain 99mTc solid radiotracers, new porous supports are currently needed. Previous studies carried out by other authors showed the possibility of 99mTc labeling of sediments from rivers with a high content of aluminosilicates.
Yuri Aguilera Corrales +3 more
doaj
The Canadian Journal of Chemical Engineering, EarlyView.Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada +6 more
wiley +1 more source
Clathrate hydrate crystallization
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley +1 more source
SILICA PURIFICATION FORM MERAPI VOLCANO SAND AS PHOTOVOLTAIC RAW MATERIALS
Jurnal Sains Dasar, 2016 Purification of silica sand volcanic Mount Merapi has been done, for raw material photovoltaic. Leaching purification process is done using aqua regia solution, H2SO4, and HCl.
Sulistiyani Sulistiyani +2 more
doaj
Enhanced Oxygen Mass Transfer in Mixing Bioreactor Using Silica Microparticles
FermentationThis work aimed to improve the oxygen transfer mass coefficient (kLa) in mixing reactors, first evaluating the effect of agitation and aeration and then evaluating the influence of the size and concentration of silica microparticles.
Matheus M. Pereira +5 more
doaj +1 more source
Batch pulping on the basis of natural substandard siliceous materials [PDF]
, 2007 It is shown that using silica sand of Tugansk deposit (Tomsk region) and marshalite of Elbash deposit (Novosibirsk region) having more developed specific surface in comparison with silica sand of Tashlin deposit (Ulyanovsk region) in combination with ...
Frolova, I. V. +2 more
core
, 2009 a b s t r a c t Chemical fractionation, SEM–EDX and XRD was used for characterisation of fly ashes from different cocombustion tests in a 12MW circulating fluidized bed boiler.
Pettersson, A. +2 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
Transport Characteristics of Green-Tea Nano-scale Zero Valent Iron as a Function of Soil Mineralogy
Chemical Engineering Transactions, 2012 The transport characteristics of iron nanoparticles prepared with a green tea, polyphenol-rich solution, were investigated for two granular media, pure silica sand and sand coated with aluminium hydroxide. The GT-nZVI injection caused a sharp decrease in
M. Chrysochoou, M. Mcguire, G. Dahal
doaj +1 more source