Conversion of Spent Tea Waste for Solid Carbon Fuel via Hydrothermal Carbonization Process

Document Type : Research Paper

Authors

1 Department of Petroleum and Gas Refining Engineering, College of Petroleum Process Engineering, Tikrit University, Tikrit, Iraq.

2 Department of Petroleum Reservoir Engineering, College of Petroleum & Mining, Mosul University, Mosul, Iraq.

3 Department of Medical Laboratory Technology, University of Imam Jaafar Al-Sadiq, Balad, Iraq.

4 Al-Hawija Technical College, Northern Technical University, Al-Hawija, Iraq.

5 Department of Chemical Engineering, College of Engineering, Tikrit University, Iraq.

6 North Refineries Company Baiji, Ministry of Oil, Iraq.

7 Oil Products Distribution Company (OPDC), Salahuldeen Branch, Tikrit, Ministry of Oil, Iraq.

Abstract

This research aimed to study the effect of hydrothermal carbonization (HTC) process constraints like reaction temperature and contact time of the hydrochar produced via conversion of spent waste tea (SWT), at the time of removing the environment of the pollutant SWT, then to study the hydrochar produced by the HTC process. At the range of temperatures, the SWT feed amount was 5 g, 2 MPa N2 pressure, with a constant contact time of 45 min, with various temperatures of 150, 175, and 200 °C, respectively. At the range of residence times, the 5g of SWT, 2 MPa N2 pressure, at constant temperature at 200 °C (the finest degree it was found), and the various contact durations at 30, 45, and 60 minutes, respectively. The characterization process was carried out via physical properties, higher heating values (HHVs), proximate and ultimate analysis, energy recovery (ER), and energy yield (EY). The results showed that the SWT reached carbon contents and the highest HHV. The conversion of SWT by the HTC process could be used as a solid carbon fuel for energy generation and to rid the environment of pollutant materials.

Keywords

Main Subjects

References

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Journal of Chemical and Petroleum Engineering
Volume 59, Issue 1
June 2025
Pages 185-196

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History

  • Receive Date: 02 November 2024
  • Revise Date: 06 March 2025
  • Accept Date: 10 December 2024

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