Who can tell me a little question about biogas (formula = CO2 + CH4)? We can burn the methane to heat up but what can we do for the CO2? What is the proportion of CO2 (in volume or mass) compared to methane, 50%?

I come across a subject that I was looking for a moment.

For info, I recently found a simulator SIMAHPP on the website hydroxpert.com (http://www.hydroxpert.com)

The tool calculates the power and gives an estimate of the investment cost, the appropriate turbine, the CO2, ...