Abstract：
:A novel method for energy recycling from sewage sludge was developed through biophysical drying coupled with fast pyrolysis. Thermal decomposition properties of biophysical-dried sludge (BDS) and thermal-dried sludge (TDS) were characterized through thermogravimetric (TG) coupled with mass spectrometry (MS) analysis. BDS exhibited typical peaks in each differential thermogravimetric (DTG) region and presented slower mass loss rates in H, C, and L regions (180-550°C) but remarkable weight loss in region I (>550°C) compared with TDS. The charring process centered at region I, was responsible for the prominent H2 emission from BDS. The pseudo multicomponent model showed that the Em values of BDS and TDS were 48.84 and 37.75 kJ/mol, respectively. Furthermore, fast pyrolysis of BDS was proven to facilitate syngas and char formation more than TDS. For the yielded syngas, the thermal conversion of BDS was characterized by high H2 and CH4 content beyond 700°C.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Han R,Zhao C,Liu J,Chen A,Wang Hdoi
10.1016/j.biortech.2015.08.071subject
Has Abstractpub_date
2015-12-01 00:00:00pages
276-82eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01177-3journal_volume
198pub_type
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