This paper presents thermodynamic conditions for carbon deposition in steam and dry methane reforming process. Ranges of substrate concentrations and temperatures for creating carbon deposition were specified in an analytical form. In the description of the conversion of methane CH 4 -H 2 O and CH 4 -CO 2 parametric equations were used, which allowed to define equilibrium composition of the process. The article formulates the basic assumptions of parametric equations models and their use to describe the course of the homogeneous reactions. The results may provide a model basis for the description of properties of the mixed reforming process CH 4 -H 2 O-CO 2 .Keywords: steam and dry reforming of methane, carbon deposition, parametric equations, homogeneous reactions described by model of parametric equations W prezentowanej pracy przedstawiono termodynamiczny warunek wytrącania węgla w procesie parowego i suchego reformingu metanu. Określono zakresy stężenia substratów i temperatury tworzenia depozytów węglowych w postaci analitycznej. Opis konwersji metanu CH 4 -H 2 O i CH 4 -CO 2 zrealizowano z wykorzystaniem formalizmu równań parametrycznych, pozwalającego na określenie składu równowagowego zachodzącego procesu. Przedstawiono podstawowe założenia modelu równań parametrycznych oraz ich wykorzystanie do opisu przebiegu reakcji homogenicznych. Uzyskane wyniki mogą stanowić bazę modelową do opisu własności procesu reformingu mieszanego CH 4 -H 2 O-CO 2 .
Abstract. The most common and easiest alternative technologies for conventional fossil fuel combustion are biomass combustion and co-combustion. However, high-chlorine fuels (Cl ar >0,2%) like: biomass, waste and high chlorine coals generate the risk of intensified corrosion process and a limited steel mechanical strength is observed.The paper presents a thermodynamic analysis of chloride-induced corrosion in the Fe-O-Cl system. The ranges of the metallic, oxide and chloride phase stability are determined within the temperature range T = 750-1000 K. Based on the parametric equations the equilibrium concentration of gaseous phase determined by Deacon reaction are presented. The effect of H 2 O concentration in the gaseous phase on high-temperature corrosion process and gaseous NaCl influence on NaFeO 2 formation in the passive oxide scale layer (FeO/Fe 3 O 4 /Fe 2 O 3 ) are discussed as well. The results are correlated with available in the literature laboratory experimental data and industrial corrosion process observations. Presented thermodynamic analysis is compared with assumptions of "active oxidation" model. The results may be used for experimental research prediction and a corrosion prevention in the industry.
This paper presents thermodynamic conditions for carbon deposition in methane reforming process by gas phase H 2 O/CO 2 . Ranges of substrate concentrations and temperatures for creating carbon deposition were specified in an analytical form. In the description of the conversion of methane CH 4 -(H 2 O/CO 2 ) parametric equations were used, which allowed to define equilibrium composition of the process. The article formulates the basic assumptions of parametric equations models and their use to describe the course of the homogeneous reactions. The results may provide a model basis for the description of properties of the mixed reforming process CH 4 -(H 2 O/CO 2 ).Keywords: reforming of methane, carbon deposition, parametric equations, homogeneous reactions described by model of parametric equations W prezentowanej pracy przedstawiono termodynamiczny warunek wytrącania węgla w procesie reformingu metanu fazą gazową H 2 O/CO 2 . Określono zakresy stężenia substratów i temperatury tworzenia depozytów węglowych w postaci analitycznej. Opis konwersji metanu CH 4 -(H 2 O/CO 2 ) zrealizowano z wykorzystaniem formalizmu równań parametrycznych, pozwalającego na określenie składu równowagowego zachodzącego procesu. Przedstawiono podstawowe założenia modelu równań parametrycznych oraz ich wykorzystanie do opisu przebiegu reakcji homogenicznych. Uzyskane wyniki mogą stanowić bazę modelową do opisu własności tzw. procesu reformingu mieszanego CH 4 -(H 2 O/CO 2 ).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.