An Analysis of the Influence of Low Density Polyethylene, Novolac, and Coal Tar Pitch Additives on the Decrease in Content of Impurities Emitted from Densified Pea Husks during the Process of Their Pyrolysis

The course of pyrolysis pea husks was studied. It stated that the compaction a sample during its causes an almost two-fold increase in content hydrocarbons composition volatile products temperature range 350–470 °C. Low density polyethylene (LDPE), novolac, and coal tar pitch (CTP) wastes were added to feedstocks amount 2 wt% order decrease contribution saturated unsaturated along with oxygen-containing compounds products. analysis obtained conducted using techniques thermogravimetry/Fourier transform infrared spectroscopy (TG/FT-IR), attenuated total reflectance (ATR) ultraviolet (UV)-spectroscopies, gas chromatography-mass spectrometry (GCMS), X-ray diffractions (XRD), scanning electron microscopy (SEM), energy dispersive (EDX). determined took first place series effectiveness decreasing harmful products; novolac second. A 370 °C lowers carbonyl groups (by approx. 2.7 times) alcohols, phenols, esters 4.4 times). At 465 °C, this additive reduces volatiles 5.8 at 520 more substantial is observed 14.3 During 420–520 LDPE actively emits own decomposition form aliphatic negatively affect environment. condensed changes under influence additives. In water condensates, concentration phenols anhydrosugars increases slightly SEM XRD investigations proved inorganics interact from blends additives change their composition. After transformation chemical composition, catalyse secondary reactions take blends.