| Title: | High-efficiency treatment of benzaldehyde residue using two-stage fluidized-bed/fixed-bed catalytic system |
| Author(s): | Liu Q; Chen R; Zeng M; Fei Z; Chen X; Zhang Z; Tang J; Cui M; Qiao X; |
| Address: | "College of Chemical Engineering, Nanjing Tech University, Nanjing, People's Republic of China. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, People's Republic of China. Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, People's Republic of China" |
| DOI: | 10.1080/09593330.2019.1588382 |
| ISSN/ISBN: | 1479-487X (Electronic) 0959-3330 (Linking) |
| Abstract: | "A novel two-stage fluidized-bed/fixed-bed catalytic system was developed for the treatment of benzaldehyde residue. The effects of reaction temperature, oxygen concentration, space velocity on the purification of benzaldehyde production residue were investigated. The effluent chemical oxygen demand (COD) was less than 70 mgO(2)/L and the COD removal efficiency was higher than 99.83% under our experimental condition (fluidized-bed and fixed-bed temperature of 300-400 degrees C, the flow rate of residue of 10 mL/h and O(2) excessive rate of 20). The volatile organic compounds (VOCs) of the outlet were not detected after the treatment. The high-efficiency performance of the process can last for at least 600 h in the stability experiment. It was also verified by gas chromatography-mass spectrometry (GC-MS) analysis that most organic pollutants in the residue were significantly removed after treatment. These results suggest that the two-stage fluidized-bed/fixed-bed catalytic system could be a promising technology for the dispose of chlorine-containing polymer organics in the chemical industry" |
| Keywords: | "*Benzaldehydes Biological Oxygen Demand Analysis *Bioreactors Catalysis Temperature Waste Disposal, Fluid Benzaldehyde residue chemical oxygen demand (COD) fluidized-bed removal efficiency;" |
| Notes: | "MedlineLiu, Qing Chen, Rongjie Zeng, Maorong Fei, Zhaoyang Chen, Xian Zhang, Zhuxiu Tang, Jihai Cui, Mifen Qiao, Xu eng England 2019/03/14 Environ Technol. 2020 Sep; 41(22):2898-2906. doi: 10.1080/09593330.2019.1588382. Epub 2019 Mar 14" |
