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Combustion of Sludge-Lignin in Water-Oxygen Mixture
Journal of Engineering Thermophysics ( IF 2.4 ) Pub Date : 2020-02-17 , DOI: 10.1134/s1810232820010038 O. N. Fedyaeva , A. A. Vostrikov , D. O. Artamonov , A. V. Shishkin , M. Ya. Sokol
中文翻译:
污泥-木质素在水-氧气混合物中的燃烧
更新日期:2020-02-17
Journal of Engineering Thermophysics ( IF 2.4 ) Pub Date : 2020-02-17 , DOI: 10.1134/s1810232820010038 O. N. Fedyaeva , A. A. Vostrikov , D. O. Artamonov , A. V. Shishkin , M. Ya. Sokol
Abstract
The paper presents the results of investigation of the products of oxidation of sludge-lignin (waste from the Baikal pulp and paper mill) in H\(_{2}\)O/O\(_{2}\) mixture in the autoclave and semi-flow modes at uniform heating of the reactor up to 750 K. The time dependencies of the reactor wall temperature and the power of ohmic heaters imply that the oxidation starts at 440 K and the maximum oxidation rate is realized at 583-643 K. Mass spectrometry measurements of the composition of the volatile products yielded the temperature dependency of the degree of removal of carbon occurring in CO and CO\(_{2}\) from sludge-lignin. Using physical and chemical methods of analysis it was shown that Al\(_{2}\)O\(_{3}\) (AlOOH in the autoclave mode), Fe\(_{2}\)O\(_{3}\), SiO\(_{2}\), AlPO\(_{4}\), and CaSO\(_{4}\) were major components of the residue after the sludge-lignin conversion. Formation of HCl and H\(_{2}\)SO\(_{4}\) in the course of oxidation of chlorine- and sulfur-containing organic compounds was found to cause corrosion of stainless steel.中文翻译:
污泥-木质素在水-氧气混合物中的燃烧