Comparative research on deoxy-liquefaction of marine and terrestrial biomasses

Marine biomass and terrestrial biomass have distinct compositions and structures. In order to understand the effect of feedstock difference on deoxy-liquefaction products, the experiments were performed with marine biomass (Enteromorpha prolifera, Giant kelp, Undaria pinnatifida) and terrestrial biomass (cotton stalk, sweet potato vine, plane leaves) for comparison of product yields and compositions. GC-MS results showed that the liquid oils from marine biomass were rich in alkanes (36.64-39.18%) and nitrogenous compounds (7.07-11.61%). While, the terrestrial biomass oils were rich in phenolic compounds (36.02-40.55%) and aromatic hydrocarbons (6.36-12.31%). The solid char properties were further characterized by FTIR, XRD and SEM analysis, respectively and their potential applications were also discussed. All the results suggested that the types of feedstock have a significant effect on the biomass deoxy-liquefaction products.