Język Polski
English
Published
: 2010-03-30
Thermo-catalytic degradation of low density polyethylene over clinoptilolite - the effect of carbon residue deposition
Abstract
Thermo-catalytic degradation of low density polyethylene (PE-LD) was studied in the presence of the natural zeolite - clinoptilolite. The effect of carbon deposition on the catalyst activity was also investigated. It was observed that the PE-LD degradation process over clinoptilolite proceeded at shorter time and lower temperature. The catalyst activity tests were carried out in argon in a stainless steel batch reactor at temperature, up to 410 ° C at ambient pressure. The decomposition products were classified into three groups: gases, liquids and solid-like residues. The liquid products were analysed by gas chromatography coupled with mass spectrometry GC/MS method. A shift towards lower molecular mass products was observed in reactions with fresh clinoptilolite. The application of this catalyst in thermal degradation of PE-LD leads to lower alkane to alkene ratios and inhibits the formation of cyclohydrocarbons. The presence of carbon deposit on the surface of re-used clinoptilolite leads to higher ratio of saturated to unsaturated hydrocarbons, but neither did it significantly change reaction temperature nor the phase composition of the reaction products.
Details
References
Statistics
Authors
Zasady cytowania
Tomaszewska, K., Kałużna-Czaplińska, J., & Jóźwiak, W. (2010). Thermo-catalytic degradation of low density polyethylene over clinoptilolite - the effect of carbon residue deposition. Polimery, 55(3), 222–226. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1005
