Search Results

You are looking at 91 - 100 of 101 items for :

  • "Carbon content" x
  • All content x
Clear All
Journal of Thermal Analysis and Calorimetry
Authors: N. Barros, J. Salgado, M. Villanueva, J. Rodriquez-Añón, J. Proupin, S. Feijóo, and M. Martín-Pastor

of intensities are in contrast and opposite to that determined in the intact solid samples of the soils such as the carbon content given in Table 2 and the 1D CPMAS spectra of Figs. 4 and 6 . Such unexpected result indicates that the soil samples

Restricted access

more obvious. The mass decomposition continues to dehydration and decarboxylization, releasing more water and carbon dioxide, and producing double bond and carbonyl products. The carbon content in the decomposed products becomes higher and higher, and

Restricted access

organic carbon content (1.16%). It could be observed that pyrolysis process affected the agronomic properties of SL with pH increasing from 6.98 in the SL to 9.54 in the biochar, whilst EC decreased from 1,055/μS/cm for SL to 49.3/μS/cm for biochar. CEC

Restricted access

Thermal transformation of polyacrylonitrile deposited on SBA-15 type silica

Effect on adsorption capacity of methyl–ethyl ketone vapor

Journal of Thermal Analysis and Calorimetry
Authors: Rafał Janus, Piotr Natkański, Anna Wach, Marek Drozdek, Zofia Piwowarska, Pegie Cool, and Piotr Kuśtrowski

. Moreover, the promoting effect of carbonyl group cannot be excluded. Fig. 5 Effect of carbonization temperature and PAN-derived carbon content on sorption capacity of methyl–ethyl ketone

Open access

Low temperature reactivity in agglomerates containing iron oxide

Studies in the Ca(OH)2–C–Fe2O3 system

Journal of Thermal Analysis and Calorimetry
Authors: Ryan Robinson, Fabrice Patisson, and Bo Björkman

elevated pressure ∼20 MPa [ 11 – 13 ]. Results from Sato et al. have shown that water contained in Ca(OH) 2 molecules is sufficient to produce H 2(g) from reaction with carbon content in samples of a vacuum reside of Arabian light crude oil at

Restricted access

size of 12 nm (SiO 2 content 99.8 %). These nanoparticles are characterized by a surface area of 170 m 2 g −1 and were surface treated with dimethyldichlorosilane, for a total carbon content between 0.7 and 1.3 wt%, and a pH value in 4 wt% aqueous

Restricted access

for CaCl 2 /NaOH (CaN), CaCl 2 /NaOH/starch (CaNS), and sugar beet ethanolic eluent impregnation (SBE) where 20–25% of material formed a residue. For SBE the residual mass value when analyzed without grid ( Table 3 ) is close to the determined carbon

Restricted access

iron catalysis during Fischer-Tropsch synthesis studied with Mössbauer spectroscopy, X-ray diffraction, carbon content determination, and reaction kinetic measurements . J Phys Chem . 84 : 3363 – 3370 10.1021/j100462a011 . 41

Restricted access

the pore size of the particles, the surface area, the carbon content, and the number of theoretical plateaus. We have tested a very large number of columns in order to choose the one that gives good results (a good resolution and a suitable retention

Open access

volatile composition of fuel (tar), water vapor, and carbon dioxide, C X′ H Y′ O Z′ N U S V + mH 2 O + nCO 2 . From Eq. 1 , the ratio of molar carbon content of the fuel mixture to its stoichiometric molar consumption of oxygen gas is derived as 4

Restricted access