Technological products portfolio

When biomethanization plants inject methane into the gas network, a gas purification process is used to separate methane and CO2.

Eco-GPUR offers innovative gas-liquid absorption technology that reduces investment and operating costs while complying with regulatory standards for methane quality and yield.

The technology is based on the use of membrane contactors, equipment already used in the food industry, instead of traditional gas scrubbing columns, as well as a brine solution as an absorbent, whose pH is adjusted by means of an electrodialysis unit.

The combination of these innovations improves the separation of CO2 and CH4 by intensifying gas-liquid transfer and more finely controlling their absorption and desorption. As this equipment is available off-the-shelf in different sizes and is relatively inexpensive, it offers the process great modularity and lower investment and operating costs.

This technology is primarily intended for small and medium-sized agricultural methanization units seeking to recover methane by injecting it into the grid, whether they are planned or already in existence and recover biogas through cogeneration.

In the longer term, applications for purifying syngas produced by biomass pyrolysis may be considered.