201. Partial oxidation kinetics of the mixture of acetic acid, phenol and naphthalene in supercritical water for hydrogen production
- Author
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Changqing Fang, Fen Gao, Jianqiao Yang, Gaoyang Zhao, Yitong Zhu, Shuzhong Wang, Yang Guo, Yuzhen Wang, Yanfeng Guo, and Ning Guo
- Subjects
Renewable Energy, Sustainability and the Environment ,Chemistry ,Inorganic chemistry ,Energy Engineering and Power Technology ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Oxygen ,Supercritical fluid ,0104 chemical sciences ,Steam reforming ,Reaction rate ,Acetic acid ,chemistry.chemical_compound ,Fuel Technology ,Organic chemistry ,Partial oxidation ,0210 nano-technology ,Hydrogen production ,Naphthalene - Abstract
A quantitative kinetic model for the supercritical water partial oxidation of the mixture of acetic acid, naphthalene and phenol at 560 °C, 25 MPa was established. The model consisted a group of pathways that included two kind of compounds, which could be classified as stable cyclic compound (Int.1) and unstable ring-opening products (Int.2). The model was validated with the experimental data at oxygen ratio (OR) of 0 and 0.2, respectively. Results showed that the model could accurately predict the influences of reactants time on gas yields and intermediates concentrations. Reaction rate analysis indicated that the general trends of reaction rate at OR = 0 and OR = 0.2 were similar. The decomposition and steam reforming reactions of Int.2 were the main pathways for gas production. The oxygen during the gasification played a positive role in promoting the ring-opening reactions, which induced higher Int.2 production and increasing of steam reforming and decomposition rates, and finally increased the H2 production.
- Published
- 2017