Publications by authors named "Yongmeng Song"
The effects of temperature and power on product distribution and characteristics of oily sludge (OS) pyrolysis were investigated in a microwave reactor. The maximum oil yield was 72.55 wt% at 550 °C and 71.
View Article and Find Full Text PDFOily sludge (OS) has attracted special interest because of its hazardous nature and high potential as an energy resource. This study investigated the oil recovery from OS by thermal cracking and catalytic pyrolysis. The oil yield increased when the temperature exceeded 450 °C and reached a maximum (76.
View Article and Find Full Text PDFMicrowave pyrolysis of oily sludge (OS) was investigated in this study. In this case, the highest oil yield (85.93 wt%) was achieved at 500 °C.
View Article and Find Full Text PDFArticle Synopsis
- Pyrolysis of furfural residue was tested at temperatures between 450-850 °C using a fluidized bed pyrolyzer, with notable increases in condensate yields when Kaolin and Ca-bentonite were added.
- The best condensate yield (24.96 wt%) occurred at 650 °C with Ca-bentonite, while the FTIR analysis showed that catalysts helped generate various organic compounds during pyrolysis.
- Gas chromatography mass spectrometry (GC-MS) indicated that catalysts notably raised the levels of furfural and phenol in the pyrolysis oil, with CaO resulting in the highest phenol content (15.36%), while also demonstrating strong retention of chlorine and reduced release of hydrogen sulfide
Article Synopsis
- - Microwave-assisted pyrolysis (MAP) of waste printed circuit boards (WPCB) shows that higher temperatures (up to 650 °C) significantly increase pyrolysis conversion to 93.3%, with temperature being a key factor over heating time.
- - The composition of the pyrolysis oil changes with temperature; at 350 °C, phenols dominate, while at 650 °C, polycyclic and monocyclic aromatic hydrocarbons rise, alongside increased non-condensable gases.
- - The use of additives like ZSM-5 and kaolin enhances the quality of the oil by promoting the formation of valuable compounds and improving Br fixation efficiency in residues by converting Br to less harmful salts, reducing its presence in pyro
A comparative research was performed to evaluate the products yields and chars properties for pyrolysis of textile dyeing sludge (TDS) and municipal sewage sludge (MSS). The high fixed carbon (19.36 wt%) and low volatile (23.
View Article and Find Full Text PDFThis paper investigated fluidized bed pyrolysis (FBP) and microwave-assisted auger pyrolysis (MWAP) for treatment and disposal of textile dyeing sludge (DS), and the products were analyzed and compared. MWAP achieved higher yields of char and condensate, and lower non-condensable gas yields compared to FBP. The yields of CO from FBP were much higher than those from MWAP at 450-850 °C.
View Article and Find Full Text PDF