期刊
WASTE MANAGEMENT
卷 62, 期 -, 页码 91-100出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2017.02.012
关键词
Municipal sewage sludge; Hazelnut shell; Co-pyrolysis; TG-DTG-MS; Bio-char
资金
- National Water Pollution Control and Management Technology Major Projects [2014ZX07201-009-04]
- Liaoning Province Natural Science Foundation of China [2014020036]
Co-pyrolysis characteristics of municipal sewage sludge and hazelnut shell blend have been studied in this work. The behavior of co-pyrolysis was researched by a method of multi-heating rates and different blend ratios to analyze thermal decomposition stages. The experimental data of the blended samples in TG-DTG plots were compared with calculated data to investigate the interactions during co-pyrolysis. The bio-chars investigated by SEM and FTIR spectra were used to examine the physical and chemical changes. The results showed there are four thermal decomposition stages during co-pyrolysis, with hydrocarbon transforming to gas evolution in the second and the third stages. The inhibitive interaction occurred between 260 and 400 degrees C and the accelerative interaction occurred between 450 and 900 degrees C during co pyrolysis. The activation energy of the blended sample was 51.97-178.84 kJ/mol in the second stage and 207.04-630.73 kJ/mol in the third stage calculated by DAEM. (C) 2017 Elsevier Ltd. All rights reserved.
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