CO2 BALANCE OF BIOGAS UPGRADING TECHNOLOGIES

摘要

Biogas technologies have both a monetary and environmental goal. On the environmental side it prevents biotic methane from being emitted into the atmosphere. In this study the amount greenhouse gases created and saved by using these technologies is analysed through a Life Cycle Assessment. Eight technologies are examined, six of which consists of those currently on the market and include: High Pressure Water Scrubbing (HPWS), Pressure Swing Adsorption (PSA), Amine Scrubbing (AS), Organic Physical Scrubbing (OPS), Membrane Separation (MS) and Cryogenic Separation (Cry).