RT journal article
T1 Hydrogen production by supercritical water gasification of black liquor: Use of high temperatures and short residence times in a continuous reactor
A1 Casademont, Pau
A1 Sánchez Oneto, Jezabel
A1 Scandelai, A.P.J.
A1 Cardozo Filho, Lucio
A1 Portela Miguélez, Juan Ramón
A2 Ingeniería Química y Tecnología de Alimentos
K1 Supercritical water gasification
K1 Black liquor
K1 Hydrogen production
K1 Hydrothermal treatment
K1 Alkali catalyst
AB The Supercritical Water Gasification (SCWG) of black liquor (BL) to obtain hydrogen and dispose of organicwaste simultaneously has been studied in a continuous reactor employing short residence times. Theexperiments were conducted at 600–700◦C, with times between 24.5–29.1 s, at 23 MPa and feedstock wasdiluted to different concentration levels (0.81–2.43 wt.%). Furthermore, different NaOH concentrations(0–1.2 wt.%) were added to maintain a basic medium and avoid the polymerization of the compounds.Hydrogen production and COD removal was conducted with short residence times. The best resultsregarding hydrogen yield were achieved at 700◦C, 24.5 s residence time and 0.9 wt.% NaOH concentration,with a production of 38.68 mol H2/kgsample. In contrast, and regarding COD removal, the best results wereobtained at 700◦C, with 24.5 s residence time and the highest feed COD concentration used (2.43 wt.%).The COD removal levels reached were between 65–90 %.
PB ELSEVIER B. V.
SN 0896-8446
YR 2020
FD 2020-01-25
LK http://hdl.handle.net/10498/31005
UL http://hdl.handle.net/10498/31005
LA eng
NO Junta de Andalucia, proyecto P11-RNM-7048
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026