Abstract
Recyclable catalysts are desperately needed for upgrading pyrolyzed bio-oil which is produced from biomass conversion in order to reduce cost and protect the environment. However, most catalysts used for producing bio-oil from the pyrolysis of biomass cannot be recycled, leading to costly catalyst regeneration or waste if disposed of. In this study, Ni2Fe3 has been chosen as the model catalyst to test the recyclable property of the metal cluster catalyst system. Cellulose is used as the biomass model reactant. The results from pyrolysis experiments and GC-MS show that the catalytic property of Ni2Fe3 remains constant even after repeated experiments. From the analysis of bio-oil by GC-MS, the catalyst even shows slightly better performance with repeated use due to the pyrolytic interaction with cellulose during the experiment.
Highlights
Recyclable catalysts are attracting greater attention today due to increasing needs for greater cost-effectiveness of chemical transformations and overall productivity
The first time represented the catalyst after the first experiment; the second time represented the catalyst after the second experiment Figure 2 indicated that the XRD pattern agreed well with each other, and after comparing the used catalyst and unused catalyst showed the catalyst XRD pattern was unchanged during pyrolysis experiments and the catalyst can be recycled
The bio-oil and char & coke were weighed, and yields were calculated after each pyrolysis experiment
Summary
Recyclable catalysts are attracting greater attention today due to increasing needs for greater cost-effectiveness of chemical transformations and overall productivity. Lee’s group used Ni-based catalysts (Ni, Ni-Mo, and Mg-Ni-Mo)/activated charcoal (AC) to understand their catalytic effect on the yield and the quality of upgraded liquid fuel in supercritical ethanol (Lee et al, 2019); Meunier’s group put Pt, Pd and Rh on alumina and used this catalyst to reformed some model compounds in order to investigate how they influence the products (Rioche et al, 2005); Basagiannis’s group found that a catalyst consisting of Ru (5%) dispersed on 15% MgO/Al2O3 carrier exhibits high activity and selectivity in producing hydrogen (Basagiannis and Verykios 2007) All of this supported-catalyst will lose activity after the experiment, they cannot be recycled. Based on our knowledge and research activity, the cluster catalyst is an ideal choice
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
