Total Remediation of NRC Oily Sludge Using Hydrothermal Carbonization for Hydro char Production

• Published in: 2023 International Conference on Engineering, Science and Advanced Technology (ICESAT) pp. 230 - 235
• Main Authors: Abdulqader, Mahmod A., Mohammed, Awad E., Saleh, Sfoog H., Al-Jubouri, Hamid Mohammed S., Habeeb, Omar Abed, Abdulmalek, Shaymaa Husham, Hasan, Ammar H., Reghioua, Abdallah, Khalaf, Z. M.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 21.06.2023
• Subjects: Combustion; Feeds; Fuels; HHV; Hydrochar; Hydrothermal Carbonization; NRC Baiji; oily sludge; Production; Renewable energy sources; Solids; Temperature distribution
• DOI: 10.1109/ICESAT58213.2023.10347311

The feasibility of using hydrothermal carbonization (HTC) to remediate hazardous the oily sludge (OS) and generate a renewable solid carbon fuel and hydrochar was investigated in this study. The approach involves heating the oily OS at 105 {}^{\circ}\mathbf{C} for 24 h . The operating parameters affecting the production of hydrochar from OS by HTC at a 10 g feed amount and 3 MPa N2 of pressure (range of the temperature was 150 - 210 °C, and range of the residence time was 30 - 90 min) were investigated and optimized. Qualified studies of energy properties for the production hydrochar were investigated by higher heating values (HHV), element composition, ultimate analysis, and energy recovery of hydrochar produced were explored. The results showed that the best hydrochar produced by a range of temperature at 190 {}^{\circ}\mathbf{C} (labeled as HTC@190) achieved the highest HHV of 14.21 MJ/kg, while the best hydrochar produced by a range of residence time at 60 min (labeled as HTC@75) achieved highest HHV of 14.78 MJ/kg. The energy recovery of HTC@190, and HTC @75 is 14.8, and 15.4, respectively. The result clarified that hydrochar produced from OS by HTC ways could be used for energy generation as a solid carbon fuel and for environmental protection.