Hybrid cryogenic and membrane separation
A staged route in which membrane units carry the bulk enrichment and a cryogenic stage takes the mixture to reusable purity — sized in simulation to find where the duty is best spent.
Huong Trang Vo
Department of Electrical & Electronic Engineering, University of Manchester
Process simulation for the recovery and reuse of SF6 from aged gas mixtures in high-voltage electrical apparatus.
Aged gas mixtures in service
Recovered gas is never the gas in the datasheet. Composition, dilution and decomposition products all move the separation problem, so the feed is treated as a range rather than a point.
Energy and emissions accounting
Recovery is only worth doing if the balance holds. Life cycle assessment sets the recovered gas against the alternatives of destruction and of manufacturing it new.
2024
Simulation study of a hybrid cryogenic and membrane separation system for SF6 recovery from aged gas mixture in electrical power apparatus
Huong Trang Vo, Lujia Chen, Patricia Gorgojo. Computer Aided Chemical Engineering, 2024.
2023
A Technoeconomic Model Coupled with HYSYS to Analyze the Electroreduction of Carbon Dioxide to Ethanol
Isabelle Pickett, Trang (Tracy) Vo, Ho Yan Wu, Antonio José Expósito. Advanced Theory and Simulations, 2023.
Research interests
SF6 recovery & reuseProcess simulationMembrane separationCryogenic separationHigh-voltage apparatusLife cycle assessment
Skills & tools
Process simulation
Aspen PlusAspen HYSYSDWSIM
Programming
PythonMATLAB
Modelling & analysis
COMSOL MultiphysicsAutoCADLife Cycle Assessment