CONVERSION OF POLYETHYLENE AND RUBBER SEED SHELL MIXTURES TO SYNGAS USING CATALYTIC STEAM GASIFICATION

This present study investigates the behavior of co-gasification of rubber seed
shells (RSS) and high density polyethylene (HOPE) waste mixtures with nickel
catalyst as an alternative means of renewable energy source. The quality of the
product gases are studied at different variables such as temperature of 500-900°C,
RSS and HOPE particle size range of 0.125-0.625 mm and 0-40 wt% HOPE in the
mixture. Furthermore, the optimum conditions to find the maximum Hz composition,
CO composition and total syngas from this process is investigated using Response
Surface Methodology (RSM) coupled with Central Composite Design (CCD) using
the Design-Expert Version 8.0.7.1. (Stat-Ease, Inc.) software. Additionally,
thermodynamic analysis, mathematical modeling for gas solid reactions and kinetic
parameters are determined.