RT info:eu-repo/semantics/article
T1 Supercritical water oxidation for energy production by hydrothermal flame as internal heat source. Experimental results and energetic study
A1 Cabeza Pérez, Pablo
A1 Silva Queiroz, Joao Paulo
A1 Criado, Manuel
A1 Jiménez, Cristina
A1 Bermejo Roda, Maria Dolores
A1 Mato Chaín, Fidel Antonio
A1 Cocero Alonso, María José
AB The cooled wall reactor has been modified by adding an additional upper outlet of products at 500–700 °C to improve energy recovery and make possible energy generation with the supercritical water oxidation of different waste. Experimental and modeling results of the performance of this new reactor configuration are presented as well as a theoretical analysis of the energy recovery of the reactor compared to other supercritical water oxidation reactors. Different flow distributions were tested to find the best elimination conditions. Total organic carbon removal over 99.99% was obtained at room injection temperatures, when the fraction of products leaving the reactor in the upper effluent is lower than 70% of feed flow. The performance of the reactor was tested with the oxidation of a recalcitrant compound such as ammonia. Removals higher than 99% of were achieved at temperatures near 700 °C. The behavior of the reactor working with feeds with up to 2.5% wt Na2SO4 could be injected in the reactor without plugging problems. Upper effluent always presented a concentration of salt lower than 30 ppm. Theoretical energetic analysis shows that the performance of this reactor is superior to other designs obtaining a maximum power efficiency of 27% (0.339 kW/kg-feed).
PB Elsevier
SN 0360-5442
YR 2015
FD 2015
LK http://uvadoc.uva.es/handle/10324/28441
UL http://uvadoc.uva.es/handle/10324/28441
LA eng
NO Energy, 2015, Volume 90, Part 2, pp. 1584-1594
NO Producción Científica
DS UVaDOC
RD 27-dic-2024