Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 165, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jaap.2022.105562
Keywords
Municipal sludge; Hydrothermal liquefaction; N migration; Biocrude
Funding
- National Key Research and Development Program of China [2021YFE0104900]
- National Natural Science Foundation of China [22078258]
- Fundamental Research Funds for the Central Universities [xtr042019015, xjh012019005, CEEC2021001]
Ask authors/readers for more resources
This study investigated the coupling effects of reaction temperature and residence time on nitrogen transformation during hydrothermal liquefaction of municipal sludge. The optimal conditions were determined and the distribution and transformation pathways of nitrogen were clarified.
Biocrude derived from hydrothermal liquefaction of municipal sludge has a high nitrogen content, which limits its direct use. This work explored coupling effects of reaction temperature and residence time on N transformation during hydrothermal liquefaction of municipal sludge. The results showed that 350. and 40 min were the optimal conditions, which led to the highest biocrude yield, HHV, energy recovery, and N removal efficiency after hydrothermal liquefaction of municipal sludge within 200-350. for 10-50 min. More than 60 wt% N in municipal sludge was distributed in the aqueous phase and NH4 + was the richest substance after hydrothermal liquefaction. Also, N transformation pathways were clarified by correlating the effects of reaction temperature and residence time on N distribution.
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
Share Paper
