News Post

BPT-ECX Electrolytic Separation Cell

BPT has launched a new unique unit operation for process simulators covering high-fidelity modelling of green hydrogen production with electrolysis. BPT-ECX enables green hydrogen and green ammonia production as well as being highly relevant for electrofuel plants, providing highly accurate steady state and dynamic electrolysis models for de-risking and enhancing design at an early stage as well as safeguarding return-of-investments.

"We are proud about launching the electrolysis unit operation in the booming marketplace for green energy systems, fulfilling a technology gap for high-fidelity modelling of energy systems including green hydrogen production", states an official BPT business rep. "The solution are already used with great success in pilot projects."

Today, BPT launced a flexible and accurate electrolytic seperation cell model named BPT-ECX that could be seamlessly used together with industry-standard process simulators like HYSYS, UniSim and Petro-SIM. The unit operation work in both steady state and dynamic modes. The electrolysis unit operation application is a part of BPT's comprehensive extesions to process simulators and the first among a number of green energy focused applications developed, under pilot plant testing as well as in commercial use. 

Different type of electrolysis are included in the BPT-ECX:

PEM (Polymer Electrolyte Membrane electrolysis)
AEL (Alkaline ElectroLysis)
SOEC (Solid Oxide Electrolyze Cell)

Some of the user parameters are:

Area and number of cells
Flexible geometry (vendor specific)
Electrolysis efficiency and over-potential
Voltage cell
Faraday efficiency
Gas purity
Heat loss
Thermal lag

The main benefits of BPT-ECX are:

BPT-ECX facilitates accurate interactive steady state and dynamic simulation of electrolysis plants without the need for process engineers that have specialist knowledge of advanced simulation tools. BPT-ECX is user-friendly

BPT-ECX is fitted for standalone models of the electrolysis stack units or in simulation models where electrolysis is a part of a larger plant where the interaction and controllability between the various parts are of crucial importance to validate and improve

BPT-ECX enables transfer of experimental data of newly developed electrolysis cell technology into an overall electrolysis plant model to evaluate the new technology and design pilot and industrial plants

Billington Process Technology (BPT) is an independent digital solution, simulation and service company with Headquarter outside Oslo, Norway. BPT has unique domain knowledge within production and process facilities. We are world-class users of process simulators, and among the specialties are compressor design as well as process safety. The BPT Digital Production Twin includes an unmatched solution for holistic sensor-correction providing invaluable data fundament for a number of advanced digital applications (ala machine learning) as well as calibrated steady-state and dynamic simulators for efficient production optimization. BPT is a frontrunner in modernizing field development approach together with innovating oil companies. A BPT specialty is to apply integrated multiphase flow and dynamic process simulators throughout the field development, commissioning, and life of field to validate and improve design as well as troubleshoot and perform production optimization.

For more information about this press release, please contact Knut Erik Spilling, BPTs Vice President for Sales & Marketing (e-mail: