Journal
BIORESOURCE TECHNOLOGY
Volume 247, Issue -, Pages 182-189Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.09.076
Keywords
Nitrogen fate; Food waste; Hydrothermal carbonization; Hydrochar; Temperature
Funding
- project of the National Natural Science Foundation of China [51679083]
- Interdisciplinary Research Funds for Hunan University [2015JCA03]
- scientific and technological project of Changsha City [KQ1602029]
- project of Shenzhen Science and Technology Funds [JCYJ20160530193913646]
Ask authors/readers for more resources
The influence of temperature (180-260 degrees C) on the fate of nitrogen during hydrothermal carbonization (HTC) of food waste (FW) was assessed. The distribution and evolution of nitrogen in aqueous products and bio-oil, as well as hydrochar, were conducted. Results suggested that elevated temperature enhanced the deamination and the highest ammonium concentration (929.75 mg/L) was acquired at 260 degrees C. At temperatures above 220 degrees C, the total N in the hydrochar became stable, whereas the mass percentage of N increased. Amines and heterocyclic-N compounds from protein cracking and Maillard reactions were identified as the main nitrogen-containing compounds in the bio-oil. As to the hydrochar, increasing temperature resulted in condensed nitrogen-containing aromatic heterocycles (e.g. pyridine-N and quaternary-N). In particular, remarkable Maillard reactions at 180 degrees C and the highest temperature at 260 degrees C enhanced nitrogen incorporation (i.e. quaternary-N) into hydrochar.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available