Fast pyrolysis of sewage sludge (SS) was investigated in a drop tube furnace to understand the effects of main components in bio-oil and commercial catalyst on the catalysis for the formation of triacetonamine (TAA) from the reaction of NH3 in the bio-oil with the absorption solvent acetone. Blank experiments were carried out by mixing 10 mL acetone with 700 μL 28% ammonia to investigate the catalysis of model compounds in bio-oil. This work indicates the main components in SS bio-oil have a synergistic effect on the reaction of acetone with ammonia. Adding commercial catalyst in the bio-oil can significantly promote the reaction of acetone with ammonia. NH4Cl reaches a maximum TAA yield ca. 78.0% at 55 oC for around 60 h. The optimum condition used in this investigation to produce TAA in the SS bio-oil is using NH4Cl as catalyst to react for 47 h at 55 oC. The study revealed the possibility of produce TAA from fast pyrolysis of SS.

Optimum conditions to produce triacetonamine from fast pyrolysis of sewage sludge

249th National Meeting (2015)

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