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Development of Low-emission Pyro-hydrolysis Technology for HCl Regeneration from CaCl2 Waste

thesis
posted on 2023-08-23, 05:53 authored by CHENG LIU
Hydrochloric acid (HCl) leaching process plays a significant role in energy-critical elements extraction industry. In this thesis, a low-emission process integrating CO2 capture with SiO2-assisted pyro-hydrolysis was developed for regenerating valuable HCl from CaCl2 waste. The feasibility of this process was comprehensive investigated from techno-economic, thermodynamic, and kinetic aspects. To achieve this, both experimental approach and simulation approach including flowsheet simulation, density functional theory calculation, were employed in this thesis. These findings provide valuable support for the advancement of HCl regeneration technology and make a significant contribution to the circular economy and sustainable development of the HCl-based critical elements extraction industry.

History

Campus location

Australia

Principal supervisor

Lian Zhang

Additional supervisor 1

Barbara Etschman

Year of Award

2023

Department, School or Centre

Chemical & Biological Engineering

Course

Doctor of Philosophy

Degree Type

DOCTORATE

Faculty

Faculty of Engineering

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