Elucidation of reaction pathways of nitrogenous species by hydrothermal liquefaction process of model compounds

FUEL

卷:240

Article

Matayeva, Aisha^1,2  Bianchi, Daniele³  Chiaberge, Stefano³  Cavani, Fabrizio¹  Basile, Francesco¹ 

[1] Univ Bologna, Dipartimento Chim Ind Toso Montanari, I-40136 Bologna, Italy

[2] Rhein Westfal TH Aachen, Inst Tech & Makromol Chem, D-52074 Aachen, Germany

[3] Eni SpA, Renewable Energy & Environm R&D Ctr, Ist Eni Donegani, I-28100 Novara, Italy

关键词: Hydrothermal liquefaction;    Advanced biomass;    Bio-oil;    Nitrogen;    Protein;    Amino acid;   

DOI  :  10.1016/j.fuel.2018.11.136

来源: Elsevier

【 摘 要 】

The reaction pathway of nitrogen containing compounds under hydrothermal liquefaction (HTL) conditions was investigated by using amino acids as protein model compounds. The effect of organic acids and alkaline catalysts was also investigated by determining the structure and the partition of nitrogen containing species between the resulting solid, aqueous and bio-oil phases. Representative results showed that operating in a water-acetic acid (95/5% v/v) binary solvent system resulted in a dramatic improvement in carbon recovery in the oil phase due to the transformation of water soluble hydrophilic products into oil soluble derivatives by acylation of the amino moiety. The conclusions of this study provide a useful tool to improve the HTL process applied to nitrogen rich biomass, such as the organic fraction of urban waste, sewage sludge, and aquatic biomass (microalgae).

【 授权许可】

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