Effect of Alkali and Alkaline Earth Metals on in-Situ Catalytic Fast Pyrolysis of Lignocellulosic Biomass: A Microreactor Study
By Ravishankar Mahadevan, S. Adhikari, Rajdeep Shakya, Kaige Wang, D. Dayton, Michael G. Lehrich, Steven Taylor. 2016
185 citations recorded by the source corpus.
In-situ catalytic fast pyrolysis (CFP) is considered to be a promising pathway to produce aromatic hydrocarbons from lignocellulosic biomass. However, the presence of variable amounts of inorganic ash in biomass in the form of alkali and alkaline earth metals (AAEMs) is a concern while using in situ catalysts because AAEMs could influence product distribution from CFP while also being a major reason for catalyst deactivation. In this study, the effect of four alkali and alkaline earth metals (K, Na, Mg, and Ca) commonly found in biomass was investigated to understand their individual influence on the fate of primary pyrolysis products as well as their effect on the selectivity of products from in situ CFP using ZSM-5 catalyst. Experiments were performed in a microreactor (Py-GC/MS) with ZSM-5 catalyst using AAEM-impregnated biomass. It was found that the type of AAEM as well as the concentration were significant, with Mg appearing to be relatively inert when compared to the stronger catalytic activity of ...
Subfields: Biomedical Engineering
View Paper: https://www.semanticscholar.org/paper/36396591f1aa81b33ba431e0921f86a68cdbd3fd
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In Biomedical Engineering
Citations in the corpus
- The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review (2019, methodology): “The influence of volatile K inside a cellulose sample was investigated in terms of hydrogen production and catalyst stability using a two-stage fixed-bed reaction system in the presence of a Ni/Al2O3 catalyst [71,73].”