Page 82 - Industrial Plants
P. 82
Figure 10 - South Milford AD plant (UK) – Equipment for emission reduction
Upgrading to Bio-methane hollow fiber membranes that have different
grades pf permeability.
The upgrading system allows to extract the bio- High grade for the CO2, H2O and ’NH3, lower grade
methane from he biogas. BTS has developed an for the ’H2S and O2 and extremely low grade for the
efficient temperature control for the plant, additional N2 and CH4. In that way it is possible to separate the
membranes, and bigger heat exchanger to optimize CH4 (biomethane) present in the biogas from the other
the process. components.
The Biogas is compressed to 16 bars, cooled down in
the heat exchanger and the heat is recovered and sent The upgrading equipment are fitted in 5 containers
to the digesters. pre-assembled that allow a compact lay-out and a fast
Further on, the biogas is passing through a bundle of and reliable erection.
Figure 11 - South
Milford AD plant (UK)
– Compression
-Cooling – Separation
Through Membranes
INDUSTRIAL PLANTS - September 2021
80
