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Experimental, Modelling and Optimisation of Pyrolysis of Solid Wastes

Posted on:2015-08-06Degree:Ph.DType:Dissertation
University:Hong Kong University of Science and Technology (Hong Kong)Candidate:Oyedun, Adetoyese OlajireFull Text:PDF
GTID:1471390017499053Subject:Chemical Engineering
Abstract/Summary:
Pyrolysis process is the thermal decomposition of carbonaceous materials in the absence of oxygen into carbonaceous residues, liquid hydrocarbons and combustible gases. It is a precursor to other thermochemical processes (gasification and combustion) and therefore very important thermochemical process. Pyrolysis process is an efficient and effective method of treating solid wastes but its large-scale utilization is still limited by certain factors. The major factor is the high amount of energy used during the pyrolysis process and in order to make pyrolysis a cost effective commercial energy process, there is need to explore different approaches/strategies to reduce energy usage during the process. Another important challenges with pyrolysis of solid wastes are the stability of certain products fraction and composition of the solid waste feedstocks. Therefore, in this study, experimental, modelling and optimisation of solid wastes pyrolysis were investigated and different operational strategies were proposed towards solving the pyrolysis problem. Selected solid wastes feedstocks such as bamboo waste, waste tyres, sawdust, empty fruit bunch (EFB) and plastics (polystyrene and high density polyethylene) were employed in this research study. (Abstract shortened by UMI.).
Keywords/Search Tags:Pyrolysis, Solid wastes, Process
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