Garmash B. The technology of the catalysts for high temperature carbon (II) oxide conversion by water steam

Research object: physical and chemical processes of HTS catalyst production by coprecipitation of Iron (ІІ), Chrome(ІІІ) and Copper (II) cations with the use of alternative raw material based on the waste of titan(IV) oxide production. Research aim: development of technology of stabilized and promoted HTS catalyst with set properties using an alternative raw material which is based on the waste of titan(IV) oxide production. Research methods: determinations of Fe2+, Cr3+ and Cu2+ ions content in a filtrate was made by a method of atomic-adsorption spectroscopy; a specific surface and a porous structure of pelleted catalysts were determined using a device called "Sorbtometr-M"; phase composition of the produced catalysts was defined by using a x-rayed method; a differentially-thermal method was used to register phase transformations; a method of laser spectrometry was used to determine a chemical elements composition of produced sediments; the research of a catalyst activity was carried out in flow rector. Theoretical and practical results: it is well-proven that a complex of proposed technological solutions, notably the use of flocculants, surfactants, stabilizers and promoter allows to change the technology of a HTS catalyst due to intensification of sedimentation and filtration possesses, increase of degree of sediment washing from concomitant ions. It gives the opportunity to improve technical and economical rates. Novelty: possibility of the use of an alternative raw material is proven theoretically and experimentally, here also were defined the rational parameters and feature of the coprecipitations process of catalyst compounds, reasonability of using flocculants and addition of a polyvinyl alcohol in a percolate, necessity to stabilize a HTS catalyst by adding to its composition 0,75 mas. % of Са(ОН)2. It allows to exclude a desulphurization process. Extent of introduction: the proposed technology and the activated catalyst were tested on PSS "Severodonetsk association Nitrogen", where its high technological rates were confirmed (An act 22.04.2010) and the technology is recommended to introduce. Field of application: chemical technology.