Zobrazeno 1 - 10
of 35
pro vyhledávání: '"M.F. Yardim"'
Removal of detergents from water by adsorption on activated carbons obtained from various precursors
Autor:
B. Petrova, M.F. Yardim, Dimitar Teodosiev, Boyko Tsyntsarski, Nartzislav Petrov, Andrei Sarbu, Ahmet Sirkecioglu, Teodor Sandu, Temenuzhka Budinova
Publikováno v:
Desalination and Water Treatment. 52:3445-3452
The adsorption of detergents—sulfonic and phenolic compounds—from aqueous solutions by activated carbons (AC), obtained on the base of different precursors, was studied. The carbon adsorbents used were prepared by water vapor pyrolysis of differe
Publikováno v:
New Carbon Materials. 28:127-132
Carbon foams were synthesized using an asphaltene pitch as a carbon precursor. The effects of foaming conditions and carbonization on the pore structures and physical properties of the carbon foams were investigated. Results indicate that the average
Publikováno v:
Carbon. 43:261-267
Different oxidation treatment was used for the increase of the softening point of a commercial coal tar pitch. H 2 SO 4 , HNO 3 , H 2 O 2 and air are selected as treatment reagents. These preliminary investigations show that the oxidation treatment o
Autor:
Nartzislav Petrov, M.F. Yardim, M. Razvigorova, V. Minkova, Temenuzhka Budinova, Ekrem Ekinci
Publikováno v:
Chemosphere. 52:835-841
The adsorption of Hg(II) from aqueous solution at 293 K by activated carbon obtained from furfural is studied. The carbon is prepared by polymerization of furfural following carbonization and activation of the obtained polymer material with water vap
Formation of porous structure of semicokes from pyrolysis of Turkish coals in different atmospheres☆
Autor:
M.F. Yardim, Ekrem Ekinci, M. Razvigorova, V. Minkova, Nartzislav Petrov, Maria Goranova, Temenuzhka Budinova
Publikováno v:
Fuel. 82:459-463
Activated carbons were obtained from Turkish coals by one-step steam pyrolysis process. The effect of the water vapor on the yield of the solid, liquid and gas products was studied. The presence of steam during pyrolysis-activation process contribute
Autor:
D. Savova, M.F. Yardim, Nartzislav Petrov, Ekrem Ekinci, M. Razvigorova, V. Minkova, Temenuzhka Budinova
Publikováno v:
Carbon. 41:1897-1903
Studies on the adsorption of manganese ions from aqueous solution on carbon obtained from a mixture of biomass products indicate the importance of acidic surface oxides for manganese ion adsorption that is predominantly site specific. The results sho
Publikováno v:
Carbon. 40:1331-1337
Goynuk oil shale (GOS) and Avgamasya asphaltite (AA) mixed in various ratios were used as raw materials for pitch precursors. Pure GOS and AA and their mixtures were pyrolysed at 550 °C and the resultant tars were vacuum distilled at 300 °C and 3 T
Publikováno v:
Fuel. 79:497-504
As part of a study to evaluate the potential of hydrocarbons from South-eastern Turkey for carbon fiber production, samples from Raman–Dincer crude oils were processed by vacuum distillation to produce pitch precursor for carbon fibers. Structural
Publikováno v:
Fuel. 76:1389-1394
Pitches were prepared by three methods from Avgamasya asphaltite: (1) solvent extraction; (2) pyrolysis followed by vacuum distillation of the resulting tar; (3) air blowing of some of the vacuum-distilled tars. For Raman-Dincer heavy crude oil, only
Autor:
Ivanka Racheva, B. Petrova, Temenuzhka Budinova, Boyko Tsyntsarski, M.F. Yardim, Wuu-Liang Huang
Publikováno v:
Oil Shale. 31:121
Pyrolysis of Bulgarian oil shale was studied by using a diamond anvil cell, which allows one to observe directly the conversion of organic matter to mobile oily liquid, solid residue and gas. This method gives the possibility to detect very precisely