Incineration of Pulp and Paper Mill Waste in Supercritical Water Using Methane as a Co-Fuel
| Autor: | M. Ya. Sokol, A. V. Shishkin, Anatoly A. Vostrikov, D. O. Artamonov, Oxana N. Fedyaeva |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Waste management business.industry Pulp (paper) Energy Engineering and Power Technology chemistry.chemical_element Paper mill engineering.material Condensed Matter Physics Oxygen Supercritical fluid Methane Volumetric flow rate Incineration chemistry.chemical_compound chemistry Modeling and Simulation Empirical formula engineering Environmental science business |
| Zdroj: | Journal of Engineering Thermophysics. 30:350-364 |
| ISSN: | 1990-5432 1810-2328 |
| DOI: | 10.1134/s1810232821030024 |
| Popis: | The paper presents a research on the disposal of the toxic waste of pulp and paper mill (sludge-lignin with the empirical formula CH1.51N0.05S0.03Cl0.01O0.54through its oxidation in supercritical water-oxygen fluid, including the case of using methane as a co-fuel. The experiments were carried out with a flow reactor of original design at a pressure of 25 MPa, temperature gradient along the vertical axis (from top to bottom: 390–600°C), and variation in the flow rate of the sludge-lignin (with the addition of NaOH, 1.6 wt %), oxygen, and methane. The experiments yielded data on the content of phenols in the water and the composition of the gaseous products collected at the outlet of the reactor versus the oxygen excess ratio. From these data, as well as the time dependences of the reactor wall temperature and the power of the ohmic heaters, it follows that using distributed supply of methane to compensate for the energy for heating of the reagents is preferable as compared with local inlet of methane to the upper part of the reactor. It has been shown that the addition of methane makes it possible to reduce the oxygen excess required for complete oxidation of the organic components of sludge-lignin. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink