Intensification of co-pyrolysis of plastic with biomass via pretreatment

Abstract Biomass pyrolysis performance is improved through co-pyrolysis with hydrogen rich plastic producing more liquid fuel products of higher quality. Furthermore, beyond the synergetic effect, in catalytic presence may facilitate contact between catalyst and biomass. In this study, effect pretreatment plastic/biomass was investigated, order to further improve above aims. The first method pre-degradation treatment at relatively low temperatures where solid state reactions alter structure but no volatile are formed. addition, a second used for cellulose, namely co-pressing cellulose particles into mixed pellets. Thermogravimetric results confirmed that reduced decomposition temperature cellulose. Pre-degradation diminished hindering cellulose-derived char/ catalyst-coke demonstrating significant interaction lldPE (linear density polyethylene) before charring/coking stage While absence catalyst, there minimal as molten layers around inhibited escape biomass-derived products, use along provided maximum pyrolysates which proceeded lower reaction without any hindrance from char/coke formation. increased yield associated increase yield. during decreased concentration on while amounts hard coke/char had accumulated pre-treated samples. Liquid product characterisation indicated effective converting aromatics. suggest pre-treatment processes have synergy thereby enhancing quantity quality desired product.