Life Cycle Assessment of Pyrolysis, Gasification and Incineration Waste-to-Energy Technologies

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ARTICLE SUMMARY
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The article is majorly concerned with the transition of Municipal solid waste, gasification and
pyrolysis towards more sustainable energy advancement, sustainable waste simulation to energy
option (WtE). Due to rare comprehensive comparisons of the prevailing technologies of WtE,
this study focuses on LCA (Life cycle Assessment) basing on two data sets; theoretical analysis
as well as case studies comprising large scale commercial plants. Taking theoretical analysis, the
utilized data are obtained from industrial practices, standards, peer-reviewed literatures as well as
recent search reports. Several processes including thermal conversion for instance; gasification
and incineration, and energy utilization that is internal combustion engine, gas turbine as well as
steam cycl) and emissions at the stack are therefore modelled (Dong et al., 2018).
Theoretical analysis therefore poses a conclusion that, on comparing with incineration;
gasification and pyrolysis stand the likelihood of having a better performance environmentally
performance evidenced by two thrilling benefits like process emissions reduced as well as
extensive increase in recovered amount of energy. In addition, pyrolysis and gasification lower
the environmental impacts of photochemical ozone formation (POF), terrestrial eutrophication
(TE), human toxicity via air (HTa) and ecotoxicity via solid (ETs) but increase the effects of
global warming (GW) and human toxicity via solid (HTs). Gasification systems show lower
environmental impact than pyrolysis systems, for a direct comparison of various WtE processes.
Some analyses are shown on the graphs (Dong et al., 2018).