期刊
APPLIED ENERGY
卷 88, 期 8, 页码 2612-2616出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2011.01.021
关键词
Phenol; Partial oxidation; Supercritical water; Hydrogen
资金
- National Natural Science Foundation of China [21037001]
- National Key Project for Basic Research of China [2008BAC32B06-1]
- National High Technology Research and Development Program of China [2009AA06Z319]
- Research Fund for the Doctoral Program of Higher Education of China [20090172110028]
The paper reports partial oxidative gasification of phenol for hydrogen in supercritical water (SON) at lower temperature (<753 K), at which cleavages of aromatic ring occur difficultly and tend to undesirable polymerization. The results showed that O-2 is effective to gasification of phenol in SCW. similar to 76% of phenol was gasified and 2.7 mol/mol of hydrogen was produced within 180 s with Na2CO3 as catalyst at the selected process conditions, a molar ratio of oxygen-to-phenol, 7.5-1, 723 K. and 24 MPa. It was found that unstable opening-rings products oxalic and maleic acid and stable dimmerization compounds in liquid water were formed during partial oxidation process. The process also indicated phenol was rapidly converted, and some opening-rings products were slowly gasified, which also confirmed oxygen served as effective reactant for ring-opening. Based on the given reaction conditions, a treatment process using a real wastewater from coking industry was performed. The data showed that the present technology provides an effective way to gasification of phenol wastewater for high-value energy utilization. (C) 2011 Elsevier Ltd All rights reserved.
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