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182 0 _ab
200 1 _aCharacterization of vanadia catalysts on structured micro-fibrous glass supports for selective oxidation of hydrogen sulfide
_fT. V. Larina [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 46 tit.]
330 _aThis work is focused on the characterization of a novel vanadium pentoxide catalysts on a glass-fiber support. The catalyst support consists of a non-porous glass-fiber fabric covered with an additional external surface layer of porous secondary support of SiO2 . The vanadia active component is synthesized from vanadyl oxalate precursor by means of an impulse surface thermo-synthesis method. Such catalysts demonstrate high activity and appropriate selectivity in the reaction of H2 S oxidation by oxygen into sulfur in the practically important temperature range below 200°C. According to the characterization data, the freshly prepared vanadia catalyst partially consists of mostly the amorphous and badly ordered vanadia with some part of the wellcrystallized V2 O5 phase. Under the reaction conditions the main part of vanadia in the catalyst remains in the amorphous V2 O5 form, while the less part becomes reduces into of VO2 and other vanadium oxides (such as VO, V2 O3 V3 O7 and V4 O9 ). Most probably, the crystallized V2 O5 in course of reaction is responsible for the deep oxidation of hydrogen sulphide into SO2 , while the lower vanadium oxides promote the selective H2 S oxidation into elemental sulfur.
461 _tCatalysis for Sustainable Energy
463 _tVol. 2, iss. 1
_v[P. 87-95]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aсероводород
610 1 _aокисление
610 1 _aсера
610 1 _aстеклянные волокна
701 1 _aLarina
_bT. V.
_gTatyana V.
701 1 _aCherepanova
_bS. V.
_gSvetlana V.
701 1 _aRudina
_bN. A.
_gNina A.
701 1 _aKolesov
_bB. A.
_gBoris A.
701 1 _aZagoruiko
_bA. N.
_cChemical Engineer
_cProfessor of Tomsk Polytechnic University, Doctor of technical sciences
_f1962-
_gAndrey Nikolaevich
_2stltpush
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712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра химической технологии топлива и химической кибернетики (ХТТ)
_h105
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801 2 _aRU
_b63413507
_c20170609
_gRCR
856 4 _uhttp://dx.doi.org/10.1515/cse-2015-0007
942 _cCF