“…These zeolites are MFI (silicalite-1) structured porous aluminosilicate zeolites that have been reported to have increased cracking activity for polyolefins -in particular PE -resulting in a decrease in the heavy oil fraction, reduction in wax production, minimization in char production, and an increase in light hydrocarbon content in the liquid and gas produced. [76,80,105,108,111,147,152,[165][166][167] These desirable results are attributed to the smaller pores in combination with strongly acidic sites which allow for initially cracked fragments to diffuse through the channels and further react within the cavities to produce higher value products. [95,99,103,105,126,147,152,165,168,169] ZSM-5 catalysts generally produce higher yields of light alkene and aromatic compounds.…”