Effects of Self-Organization of the Products of Catalytic Thermolysis of Polyvinyl Chloride on Bulk Iron
D. V. SHUTILOVA1,2, A. M. VOLODIN1, and V. V. LARICHKIN2
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
2Novosibirsk State Technical University, Ul. K. Marksa 20, Novosibirsk 630073 (Russia)
Keywords: поливинилхлорид, железоуглеродистая сталь, термолиз, углеродные нановолокна, хлорид железа, переработка отходов, каталитическая коррозия, процессы самоорганизации, метод RAPET, polyvinyl chloride, ferricabonic steel, thermolysis, carbon nanofibers, iron chloride, waste processing, catalytic corrosion, self-organization processes, RAPET procedure
Abstract
It is demonstrated for the first time that the reaction carried out under the conditions of RAPET (Reaction under Autogenic Pressure at Elevated Temperatures) is accompanied by the interaction of polyvinyl chloride (PVC) decomposition products with bulk metal and causes its self-dispersion. Thus formed nanoparticles act as a catalyst on which the growth of carbon nanofibers occurs. The mechanism of this self-dispersion is due to oxidation-reduction transformations participated by the components of reaction medium formed as a result of PVC thermolysis. Technologically easy method to process PVC wastes in the presence of self-organising catalysts is proposed. As a result of this process, the plastic matter is completely decomposed with the formation of carbon nanofibers. The literature data on the catalytic corrosion of bulk metals and alloys are generalized. On the basis of analysis, the optimal process parameters were chosen. The evolution of resulting materials within temperature range 420 to 1000 °С was studied by means of electron microscopy. The morphology of the formed product was studied and its chemical analysis was carried out. The dependence of the chemical composition and morpholopgy of the formed products on synthesis temperature was established. The SEM images of structured synthesis products formed at different temperatures are presented.
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