Ceria promoted deoxygenation and denitrogenation of Thalassiosira weissflogii and its model compounds by catalytic in-situ pyrolysis

Ceria on alumina support for catalytic pyrolysis of Pavlova sp. microalgae to high-quality bio-oils

“…The synthetized ceria containing catalysts (Ce/Al 2 O 3 , NiCe/Al 2 O 3 and MgCe/Al 2 O 3 ) were prepared by means of the incipient wet impregnation method with Ce(NO 3 ) 3 6H 2 O; Mg(NO 3 ) 2 6H 2 O and/or Ni(NO 3 ) 2 6H 2 O as precursors using alumina support (Sigma-Aldrich). The preparation method has been previously described elsewhere [24] . The Ce/Al 2 O 3 catalyst preparation was carried out by stirring cerium (III) nitrate solution and alumina support at 300 rpm for 3 h at 80 °C.…”

“…Pyrolysis is attracting particular interest among the technologies under development for the conversion of biomass feed-of oxygenates into ketonic-rich mono-functional molecules suitable for making hydrocarbon fuel components for gasoline, diesel, and jet fuel, with the highest carbon yield (23.5%) achieved on the pure CeO 2 [23] . Our research group has recently investigated the pyrolysis of different microalgae species, such as Thalassiosira weissflogii [24] , Tetraselmis sp. [25] , Nannochloropsis [26] , Isochrysis sp.…”

“…[25] , Nannochloropsis [26] , Isochrysis sp. [25] and microalgae model compounds [24] in presence of Ceria and alumina based catalysts. It was shown that light organics, aromatics and aliphatics can be originated from carbohydrates, proteins and lipids, respectively.…”

“…microalgae as feedstock for the production of biofuels by in-situ catalytic pyrolysis. Specifically, we selected Ce, MgCe and NiCe bimetallic species on alumina support, as they showed good catalytic activity with other microalgae [25,24] . This work studied their catalytic performance, pyrolysis products distribution, elemental analysis, chemical functionalities distribution ( 1 H NMR), chemical composition (GC-MS) and gas analysis (MS) at different temperatures.…”

Biomass Pyrolysis of Helianthus annuus Stems: Qualitative and Quantitative Study Based on Py-GC/MS

“…Some commercially available chemicals used in the GC-MS experiment were tested in the pyrolysis of Helianthus annuus stems by PY-GC/MS; unfortunately, all of them decomposed at pyrolysis temperature. In order to research the pyrolysis of Helianthus annuus stems through the accurate calculation of product contents and to thoroughly understand the pyrolysis process and mechanism (Aysu et al 2016), a new ISTD chemical needs to be developed to analyze the products more accurately and comprehensively.…”