Choosing the best technology solution for your biogas upgrading

Trainer: Mario A. Rosato

Programme

09:00 Differences between cleaning and purification of biogas

• The thermodynamic benchmark:  the ideal Van t’Hof machine in the case of perfect and imperfect gas separation
• Minimum work and minimum heat of imperfect separation
• The ideal work of compression
• The ideal work of liquefaction

10:00 Comparing different real-life processes under different operational conditions: case study.

a) Dry upgrading technologies

• Activated carbon (PSA, pressure swing adsorption)
• Engineered zeolites
• Bed-packed amines
• Selective membranes

b) Wet upgrading technologies

• Water scrubbing
• Water/PEG scrubbing (Selexol process)
• Alkaline scrubbing (Benfield process)
• Amine scrubbing
• Solvent scrubbing (Rectisol process)

c) Emerging technologies

• Cryogenic upgrading
• Bioupgrading
• electromethanogenesis

10:40 Selection of the most suitable process in each context

A summary of each technology and how to assess which process is most suited to your project