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181 0 _ai
182 0 _ab
200 1 _aWet peroxide oxidation of phenol over carbon/zeolite catalysts. Kinetics and diffusion study in batch and flow reactors
_fO. P. Taran [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 41 tit.]
330 _aNew composite catalysts were synthesized by pyrolysis of carbon-containing compounds supported of Cu-substituted ZSM-5 zeolite. Three series of the catalysts containing 12?wt% of carbon and 1?wt% of copper were prepared (powder, honeycomb monolith and extruded trefoils) and characterized by TEM, XPS, N2 adsorption. Kinetics of catalytic wet peroxide oxidation (CWPO) of phenol was studied in the presence of the composite catalysts using batch and flow reactors. The substrate conversion in the batch reactor was reached 45% in two minutes over the composite catalyst but no more than 8% in five minutes over the zeolite catalyst. Studies of the granulated composites (monoliths and trefoil) in the flow reactor demonstrated a higher efficiency of the trefoil catalyst. The conversion of phenol at the flow rate 20?mL?min?1 was 35% higher over the composite trefoils than over the carbon-free zeolite. The obtained kinetic data allowed the conclusion to be made about different mechanisms of CWPO over zeolite and composite catalysts. The developed kinetic model of phenol CWPO over the composite catalyst described the formation and destruction of intermediate products of phenol oxidation. It was established that inhibiting of phenol oxidation by the substrate was less pronounced in the presence of the composite catalysts than in the presence of the carbon-free catalysts. The flow reactor for phenol oxidation was modeled with account for the external and internal diffusion deceleration of the reaction over real catalyst granules of different geometry to provide adequate description of the experimental results.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Environmental Chemical Engineering
463 _tVol. 6, iss. 2
_v[P. 2551-2560]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aкинетика
610 1 _aпроточные реакторы
610 1 _aокисление
610 1 _aкомпозиты
610 1 _aфенолы
701 1 _aTaran
_bO. P.
_gOxana
701 1 _aZagoruiko
_bA. N.
_cChemical Engineer
_cProfessor of Tomsk Polytechnic University, Doctor of technical sciences
_f1962-
_gAndrey Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\33191
701 1 _aYashnik
_bS. A.
_gSvetlana
701 1 _aAyusheev
_bA. B.
_gArtemiy
701 1 _aPestunov
_bA. B.
_gAndrey
701 1 _aProsvirin
_bI. P.
_gIgor
701 1 _aPrihod’ko
_bR. V.
_gRoman
701 1 _aGoncharuk
_bV. V.
_gVladislav
701 1 _aParmon
_bV. N.
_gValentin
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа природных ресурсов
_bОтделение химической инженерии
_h8085
_2stltpush
_3(RuTPU)RU\TPU\col\23513
801 2 _aRU
_b63413507
_c20180507
_gRCR
856 4 _uhttps://doi.org/10.1016/j.jece.2018.03.017
942 _cCF