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The investigation of co-combustion of sewage sludge and oil shale using thermogravimetric analysis
- Lin, Yan, Liao, Yanfen, Yu, Zhaosheng, Fang, Shiwen, Ma, Xiaoqian
- Thermochimica acta 2017 v.653 pp. 71-78
- combustion, energy, models, oil shale, sewage sludge, temperature, thermogravimetry
- The co-combustion behaviors between sewage sludge and oil shale were investigated in this study. The TGA experiment was given a temperature spanning from 105°C to 1000°C by setting the heating rates 10, 20 and 30°C/min. The combustion characteristics, characteristic index, co-combustion interactions, activated energy and DAEM of blends were studied in this paper. The ignition temperature shifted to an earlier temperature when adding sludge. An inhibition interaction of co-combustion occurred at low temperature and the proportion of sludge with 10% showed the best promoting effects. The average activated energy reached the minimal also when the ratio of sludge was 10%. The average fractional residuals were less than 1.3%. Models showed a good recuperation with experimental data.