Zobrazeno 1 - 10
of 53
pro vyhledávání: '"J. Bimer"'
Autor:
Philippe Burg, Peggy Fydrych, Denise Cagniant, Pierre Magri, G. Nansé, Anna Jankowska, R. Gruber, J. Bimer
Publikováno v:
Fuel Processing Technology. 79:233-237
One investigated way to prepare selective adsorbents towards mixtures of volatile organic compounds (VOCs) is to modify lignite by nitrogen-enrichment. These chemically modified coals are prepared by condensation of urea with the lignite before the c
Autor:
Denise Cagniant, R. Gruber, Pierre Magri, Stanislaw Berlozecki, G Nansé, J. Bimer, P.D. Salbut
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 65:1-23
The preparation of active carbons containing nitrogen surface functions is considered by ammoxidation of various raw materials like pinewood, peat and lignite. To have an accurate knowledge of the nitrogen functions introduced, diffuse reflectance IR
Publikováno v:
Carbon. 40:1521-1531
The aim of this work is to study the efficiency of the nitrogen enrichment by urea of lignites and the induced changes of the adsorptive properties towards volatile organic compounds (VOCs) of the activated carbons derived from these modified precurs
Publikováno v:
Carbon. 40:73-80
In order to classify chemically modified active carbons in terms of selectivity towards pairs of Volatile Organic Compounds (VOCs), and in order to follow their chemical treatment, two active lignites were characterized by the Linear Solvation Energy
Publikováno v:
Carbon. 39:2339-2346
The adsorption of water vapour on microporous carbons derived from the carbonization of coconut shell has been studied. The adsorption and desorption characteristics of water vapour on the activated carbons were investigated over the pressure range p
Autor:
J. Bimer
Publikováno v:
Fuel. 77:519-525
Activated carbons were prepared by carbonization and steam activation of nitrogen-enriched low-rank coals. N-enrichment was performed by reaction of ammonia or its derivatives (ammonium carbonate, hydrazine, hydroxylamine, urea) with the carboxyl gro
Autor:
E.D. Korniyets, P.D. Salbut, Colin E. Snape, Peter N. Kuznetsov, Ludmila I. Kuznetsova, J. Bimer
Publikováno v:
Fuel Processing Technology. 50:139-152
Kansk-Achinsk brown coal hydrogenation and swelling in tetralin, in low molecular alcohols, in other solvents and in binary mixtures were studied. Tetralin was found to be the most effective liquefaction solvent, but methanol and ethanol were the act
Autor:
R. Gruber, J. Bimer, P.D. Salbut, Dominique Brodzki, Ludmila I. Kuznetsova, Peter N. Kuznetsov
Publikováno v:
Fuel. 76:189-193
The reactivity of Kansk-Achinsk brown coal in thermochemical conversion with tetralin is a linear function of the network flexibility, which is primarily controlled by ionic cross-linking with carboxylate bridges via polyvalent cations such as Ca2+.
Autor:
E.D. Korniyets, P.D. Salbut, Peter N. Kuznetsov, Ludmila I. Kuznetsova, Andrzey Krzton, J. Bimer, R. Gruber, Gérald Djéga-Mariadassou, Dominique Brodzki
Publikováno v:
Fuel. 75:1227-1234
A series of chemically altered coals was investigated in the reaction with methanol and hydrogen in the presence of ZnCl2 as a catalyst. Significant beneficial effects were observed when high-rank coals were altered by reductive and reductively methy
Publikováno v:
Energy & Fuels. 10:243-249
The chemistry of the reaction of coal with methanol and sodium hydroxide involves not only hydrogenation, mainly through the mechanism of hydride transfer from alcohol anion, and alkylation of aromatic systems but also several other types of coal str