Recovery of renewable aromatic and aliphatic hydrocarbon resources from microwave pyrolysis/co-pyrolysis of agro-residues and plastics wastes.
AuthorsSuriapparao, Dadi V
Guduru, Ramesh K
Kumar, Tanneru Hemanth
KAUST DepartmentKAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Online Publication Date2020-10-15
Print Publication Date2020-12
Embargo End Date2021-10-22
Permanent link to this recordhttp://hdl.handle.net/10754/665704
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AbstractThe present study focussed on recovering the valuable carbon resources from agro-residues (wheat straw, rice husk) and waste plastics (polypropylene, polystyrene) using microwave pyrolysis and co-pyrolysis. The main objective of this study is to investigate the effect of the susceptor blending mechanism on the co-pyrolysis product distribution. Graphite was mixed with feedstock in a new approach to achieving homogeneity, and microwave power of 600 W was used. The average heating rate (52-67 (°C/min)), microwave energy required (2267-2936 (J/g)), heat energy utilized (1410-1444 (J/g)), and conductive heat losses (85-110 (J/g)) were analyzed. The selectivity of cyclic alkanes and alkenes (65.5%) was found to be high in polypropylene pyrolysis oil. Polystyrene pyrolysis oil predominantly contained cyclooctatetraene (61%) compound. Bio-oil obtained from wheat straw predominantly contained aromatic hydrocarbons (85%), whereas rice husk oil also contains high selectivity aromatic hydrocarbons (37.8%) along with aliphatic hydrocarbons (54.9%). The co-pyrolysis oils has high selectivity of aromatics.
CitationSuriapparao, D. V., Yerrayya, A., Nagababu, G., Guduru, R. K., & Kumar, T. H. (2020). Recovery of renewable aromatic and aliphatic hydrocarbon resources from microwave pyrolysis/co-pyrolysis of agro-residues and plastics wastes. Bioresource Technology, 318, 124277. doi:10.1016/j.biortech.2020.124277
SponsorsThe corresponding author acknowledges the PanditDeendayal Petroleum University management for providing the faculty seed grant.
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