The co-combustion of pellets with pistachio shells in residential units additionally equipped by Pt-based catalyst

Abstract There are several published studies evaluating the possibilities of thermal and non-thermal utilization pistachio hard shells in many technical sectors; however, there no relevant data about usage this homogenous biomass-based by-product as a fuel for automatic household heating appliances partial or full substitution standard ENplus A1 pellets, which is aim presented study. The composition basic properties both fuels were compared well flue gas formed during 6 different mixture combustion two real-scale pellet burners. mass concentration observed pollutants (CO, total suspended particles, C 3 H 8 ) was strongly affected by increasing shell fraction (from 10 to 100%). In comparison CO increased up 25.9 times, particles 15.3 13.7 times. Based on results real tests, equations listed, describing increase whole spectrum pellets/pistachio ratios applied chosen designs Pt-based oxidation honeycomb catalyst, additionally installed at unit outlets purification, showed conversion rates 82.2% case 33.1% . This enables reaching same lower concentrations mentioned gas, co-combustion appropriately selected without catalyst.