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Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment
Published on: February 27, 2021
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Hydrothermal flames for subaquatic, terrestrial and extraterrestrial applications
Sivamohan N Reddy1, Sonil Nanda2, Jude A Okolie3
1Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India.
Journal of Hazardous Materials
|November 8, 2021
Summary
Hydrothermal flames in supercritical water offer rapid, efficient oxidation. This review covers their ignition, applications in energy and waste treatment, and future challenges.
Area of Science:
- Chemical Engineering
- Combustion Science
- Environmental Engineering
Background:
- Hydrothermal flames occur in supercritical water with fuel and oxidants.
- They offer advantages like reduced reaction times (milliseconds) and improved kinetics for supercritical water oxidation.
Purpose of the Study:
- To review the current research on hydrothermal flames.
- To discuss factors influencing their ignition and sustainability.
- To explore novel applications and future perspectives.
Main Methods:
- Literature review of state-of-the-art research on hydrothermal flames.
- Analysis of process parameters affecting ignition and flame characteristics.
- Discussion of technical considerations and challenges.
Main Results:
- Hydrothermal flame ignition and sustainability depend on fuel/oxidant type, concentration, temperature, and flow rate.
- Applications include clean energy, geothermal recovery, wastewater treatment, and heavy oil upgrading.
- Key technical aspects include solvent choice, preheating, ignition, stability, reactor design, and corrosion.
Conclusions:
- Hydrothermal flames are a promising technology for various applications due to their efficiency.
- Further research is needed to address challenges in flame stability, reactor design, and material compatibility.
- Future work should focus on optimizing process parameters and exploring new applications.
Keywords:
Geothermal heat recoveryHeavy oil upgradingSpallation drillingSupercritical water oxidationUnderwater weldingMore Related Videos
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