Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Chr. Dimitrov"'
Publikováno v:
Applied Catalysis A: General. 81:15-26
Copper-containing ZSM-5 zeolites were used as catalysts for ethene aromatization. Physico-chemical properties of the catalysts were studied by means of electron paramagnetic resonance (EPR), electron spectroscopy for chemical analysis (ESCA), and ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e30a77944ee4b8340dad4534b2449441
https://doi.org/10.1016/0926-860x(92)80257-d
https://doi.org/10.1016/0926-860x(92)80257-d
Autor:
Chr. Dimitrov, R. P. Dimitrova
Publikováno v:
Reaction Kinetics and Catalysis Letters. 15:179-184
The dehydrogenation of tetralin on two zeolite catalysts has been studied, the experiments were planned statistically according to the Orthogonal Central Composite Design. In order to determine the influence of coke deposits, the time-on-stream theor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::078147e82bd080d57a6e179a0d7bff24
https://doi.org/10.1007/bf02062429
https://doi.org/10.1007/bf02062429
Publikováno v:
Chromatographia. 23:561-565
For the study of relationships between retention behaviour and molecular structure in GLC and GSC the retention indices of alkenylbenzenes with 2–6 carbon atoms in a straight or branched side chain and of isotopological alkylbenzenes were determine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1c272a017272278c03e74799be12ebc
https://doi.org/10.1007/bf02324864
https://doi.org/10.1007/bf02324864
Publikováno v:
Journal of Chromatography A. 286:49-55
Gas chromatography was used for studying the adsorption of various organic compounds, including halogen-, oxygen-, sulphur- and nitrogen-containing ones, on molybdenum and tungsten sulphides. It is shown that the adsorption on MoS2 and WS2 is governe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91853a4b47e3d354d4441a8a751b5662
https://doi.org/10.1016/s0021-9673(01)99170-8
https://doi.org/10.1016/s0021-9673(01)99170-8
Autor:
Mai Tuyen, Chr. Dimitrov
Publikováno v:
Reaction Kinetics and Catalysis Letters. 22:215-219
On Mg-containing Y zeolites and in the presence of methanol, toluene undergoes mainly alkylation. It is established, that for this reaction strong adsorption and acid centers are not necessary.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::101517bccef7ef7abdf8786b12152041
https://doi.org/10.1007/bf02064835
https://doi.org/10.1007/bf02064835
Publikováno v:
Journal of Molecular Structure. 114:301-304
The IR spectra of 1-hexene, 1-heptene, cyclohexene, n-propanol and tert.-butanol, adsorbed on H-ZSM-5 zeolite, evacuated at 675 K, revealed a band at 1520 cm −1 after contacting with the zeolite at 373 J. The band was absent in the case of adsorbed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8949cddd791859a68b75303e6e71e9d
https://doi.org/10.1016/0022-2860(84)87149-5
https://doi.org/10.1016/0022-2860(84)87149-5
Publikováno v:
Journal of Chromatography A. 286:57-61
The chromatographic properties of thermal carbon black (TCB) TG-10 could be improved by treating it with a high-frequency plasma, in the presence of benzene vapour. In comparison with the untreated TCB, chromatographic peaks are more symmetrical and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f2f74db50c8391fbb2048456622fab8
https://doi.org/10.1016/s0021-9673(01)99171-x
https://doi.org/10.1016/s0021-9673(01)99171-x
Publikováno v:
Journal of Chromatography A. 402:87-93
A commercial thermal carbon black with a surface area of 10 m 2 /g was modified by adsorption of a monolayer of n -dotriacontane. The capacity of the monolayer was 0.6 mg/m 2 as determined by three methods: calculations using the Van der Waals sizes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34abfbb8d19ff2b0fd09156816230151
https://doi.org/10.1016/0021-9673(87)80007-9
https://doi.org/10.1016/0021-9673(87)80007-9
Publikováno v:
Journal of Chromatography A. 454:73-81
Monolayers of polynuclear aromatic hydrocarbons (PAHs) were used to modify carbon adsorbents (non-graphitized and graphitized thermal carbon blacks). The thermodynamic adsorption characteristics, retention volumes and initial differential heats of ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c75241d42dcb517798f6d432826667
https://doi.org/10.1016/s0021-9673(00)88603-3
https://doi.org/10.1016/s0021-9673(00)88603-3
Publikováno v:
Journal of Molecular Catalysis. 35:349-354
The catalytic conversion of methylcyclopentane in the presence of H-ZSM 5 zeolites was studied at 523 – 623 K in a fixed bed reactor. At 523 K no conversion occurred. At higher temperatures propane was the main reaction product. In addition to carr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4c4ee3e35a29ca898e5cfab7ea26801
https://doi.org/10.1016/0304-5102(86)87082-1
https://doi.org/10.1016/0304-5102(86)87082-1