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Wyszukujesz frazę "SO2" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Application of recycled natural aluminasilicate doped with vanadium for the decontamination of the air
    Autorzy:
    Marcewicz-Kuba, A.
    Olszewska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/779849.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    katalizatory DESONOX
    usuwanie SO2
    montmorylonit
    wanad
    DESONOX catalysts
    SO2 removal
    montmorillonite
    vanadium
    Opis:
    This paper reports studies on the influence of vanadium concentration on the catalytic activity of DESONOX catalysts (in DESOX reaction) based on modified montmorillonite from Jelsovy Potok. The investigation of the influence on the physicochemical properties of the catalysts on their behaviour has also been studied.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 2; 65-67
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of the catalyst worktime on SO2 emission quantity from the sulfuric acid system and the catalyst waste material
    Autorzy:
    Grzesiak, P.
    Grobela, M.
    Motała, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/778181.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    katalizator wanadowy
    inaktywacja
    emisja SO2
    odpady przemysłowe
    vanadic catalyst
    inactivation
    SO2 emission
    industrial waste material
    Opis:
    The catalytic process of SO2 to SO3 oxidation is the main step of sulfuric (VI) acid formation. The sustained catalyst operating due to its structural and textural modifications could disturb the process course. This paper includes the influence of the vanadic catalyst worktime on SO2 emission and the expected amount of the obtained waste material of the inactivated catalyst.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 3; 134-137
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Removal of SO2 from gases on carbon materials
    Autorzy:
    Narkiewicz, U.
    Pietrasz, A.
    Pełech, I.
    Arabczyk, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/778340.pdf
    Data publikacji:
    2012
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    usuwanie dwutlenku siarki
    nanowęgle
    sulphur dioxide removal
    nanocarbon materials
    Opis:
    The aim of the work is to describe a capability of the active carbon CARBON L-2-4 (AC) and of the nanocarbon (NC) materials containing iron nanoparticles to continuously remove SO2 from air. The carbon nanomaterials (NC) containing iron nanoparticles were synthesised using a chemical vapor deposition method - through catalytic decomposition of ethylene on nanocrystalline iron. The process of SO2 removal was carried out on dry and wet with water carbon catalyst (AC or NC) and was studied for inlet SO2 concentration 0.3 vol.% in the presence of O2, N2 and H2O, in the temperature range of 40-80°C.
    Źródło:
    Polish Journal of Chemical Technology; 2012, 14, 1; 41-45
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The dependance of an activity of vanadium catalysts on a carrier regeneration method and an active phase composition
    Autorzy:
    Grzesiak, P.
    Grobela, M.
    Hłyń, T.
    Łukaszyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/780011.pdf
    Data publikacji:
    2013
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    carrier properties
    composition of active phase
    SO2 oxidation
    vanadium catalysts
    Opis:
    The results of the research studies concerning the reaction rate of SO2 oxidation on the vanadium catalysts have been described. A carrier of the active phase - silica has been regenerated from spent vanadium mass by leaching with H2SO4 solution. The dependence of the oxidation reaction rate on the method of treating a catalyst carrier as well as the composition of an active phase of the new catalyst systems has been also presented.
    Źródło:
    Polish Journal of Chemical Technology; 2013, 15, 4; 107-110
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancement of the pool boiling heat transfer coefficient using the gas injection into the water
    Autorzy:
    Sarafraz, M.M.
    Peyghambarzadeh, S.M.
    Alavi Fazel, S.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/778947.pdf
    Data publikacji:
    2012
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    heat transfer
    pool boiling
    Gas-liquid solution
    Nucleation site density
    SO2
    water
    Opis:
    In this paper, a new method for enhancing the pool boiling heat transfer coefficient of pure liquid, based on the gas injection through the liquids has been introduced. Hence, the effect of gas dissolved in a stagnant liquid on pool boiling heat transfer coefficient, nucleation site density, and bubble departure diameter has experimentally been investigated for different mole fractions of SO2 and various heat fluxes up to 114 kW/ m2. The presence of SO2 in captured vapor inside the bubbles, particularly around the heat transfer surface increases the pool boiling heat transfer coefficient. The available predicted correlations are unable to obtain the reasonable values for pool boiling heat transfer coefficient in this particular case. Therefore, to predict the pool boiling heat transfer coefficient accurately, a new modified correlation based on Stephan-Körner relation has been proposed. Also, during the experiments, it is found that nucleation site density is a strictly exponential function of heat flux. Accordingly, a new correlation has been obtained to predict the nucleation site density. The major application of the nucleation site density is in the estimating of mean bubble diameters as well as local agitation due to the rate of bubble frequency.
    Źródło:
    Polish Journal of Chemical Technology; 2012, 14, 4; 100-109
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of iron compounds in the sulfuric acid catalyst on the SO2 oxidation process
    Autorzy:
    Grobela, M.
    Grzesiak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/778465.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    katalizator
    aktywność katalizatora
    szybkość reakcji
    inaktywacja
    catalyst active phase
    reaction rate
    inactivation
    Opis:
    The catalytic oxidation process of SO2 to SO3 is the main stage of sulfuric (VI) acid production. The process run could be disordered by reason of the increased inactivation of sulfuric acid catalyst during SO2 oxidation process. This paper includes the influence study of the iron quantity and forms, which is introduced into the catalyst active phase, on the reaction rate of the SO2 oxidation process.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 1; 2-6
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Ion Exchange in the Recovery of Vanadium from the Mass of a Spent Catalyst Used in the Oxidation of SO2 to SO3
    Autorzy:
    Drużyński, S.
    Mazurek, K.
    Białowicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/778892.pdf
    Data publikacji:
    2014
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    spent vanadium catalyst
    recovery of vanadium
    ion exchange
    solid waste utilization
    Opis:
    In the studies on the recovery of vanadium from vanadium catalyst extracts, three types of polymer strongly acidic ion exchangers were used. The ion exchange resins differed in terms of granularity and their ion exchange capacity. As a result, breakthrough curves were made for three main components of the test extract, i.e.: ions of vanadium, iron and potassium. On this basis the optimum conditions for the removal of iron ions from the solution were defined and the technological concept of the process in the semi-technical scale was proposed.
    Źródło:
    Polish Journal of Chemical Technology; 2014, 16, 2; 69-73
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kinetics of the continuous reaction crystallization of barium sulphate in BaCl2 - (NH4)2SO4 - NaCl - H2O system - neural network model
    Autorzy:
    Piotrowski, K.
    Koralewska, J.
    Wierzbowska, B.
    Matynia, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/778848.pdf
    Data publikacji:
    2009
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    siarczan baru
    jony sodu
    sole pohartownicze
    hartowanie stali
    chlorek baru
    kinetyka krystalizacji
    barium sulphate
    sodium ions
    used quenching salts
    steel hardening
    barium chloride
    reaction crystallization kinetics
    population density distribution
    chemical neutralization
    solid waste utilization
    neural network model
    Opis:
    One of the main toxic components of post quenching salts formed in large quantities during steel hardening processes is BaCl2. This dangerous ingredient can be chemically neutralized after dissolution in water by means of reaction crystallization with solid ammonium sulphate (NH4)2SO4. The resulting size distribution of the ecologically harmless crystalline product - BaSO4 - is an important criteria deciding about its further applicability. Presence of a second component of binary quenching salt mixture (BaCl2-NaCl) in water solution, NaCl, influences the reaction-crystallization process kinetics affecting the resulting product properties. The experimental 39 input-output data vectors containing the information about the continuous reaction crystallization in BaCl2 - (NH4)2SO4 - NaCl - H2O system ([BaCl2]RM = 10-24 mass %, [NaCl]RM = 0-12 mass %, T = 305-348 K and τ = 900-9000 s) created the database for the neural network training and validation. The applicability of diversified network configurations, neuron types and training strategies were verified. An optimal network structure was used for the process modeling.
    Źródło:
    Polish Journal of Chemical Technology; 2009, 11, 4; 13-19
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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