Enhanced styrene recovery from waste polystyrene pyrolysis using response surface methodology coupled with Box–Behnken design

Styrene recovery from polystyrene by flash pyrolysis in a conical spouted bed reactor

“…In fact, thermal pyrolysis of PS has been extensively studied, especially for monomer recovery (Aguado et al, 2003;Park et al, 2003;Kaminsky et al, 2004;Undri et al, 2014;Mo et al, 2014;Achilias et al, 2007). Thermal degradation of PS takes place by radical formation, in which three steps are distinguished (Marczewski et al, 2013): (i) initiation; (ii) depolymerising propagation; (iii) radical coupling, whose development in a DTG run evolves with temperature.…”

Sustainable Steel Carburization by Using Snack Packaging Plastic Waste as Carbon Resources

“…However, the technique concerning the reuse of complex snack packaging plastic waste is still not feasible due to its heterogeneous composite constitution and unavoidable external contamination [10][11][12]. Heating plastic waste together with a steel sample at elevated carburization temperatures under an oxygen-free environment could subject plastic waste to pyrolytic gasification and decompose into small molecular hydrocarbon gases [13]. The small molecular hydrocarbon gases, like methane, could, in turn, work as valuable carbon resources for steel carburization.…”

Enhanced diesel fuel fraction from waste high-density polyethylene and heavy gas oil pyrolysis using factorial design methodology

“…The FDM and RSM to predict the influence of experimental conditions on product yields formed from waste mixtures pyrolysis has been used for optimizing the reaction-time, the temperature and the initial pressure, in order to maximize the yield and composition of pyrolytic oil products from the waste mixture studied (Miranda et al, 2010;Pinto et al, 2013). RSM was successfully applied to enhance styrene yield from plastic mixture pyrolysis (Mo et al, 2014).…”