In pre-combustion capture, also known as IGCC (Integrated Gasification Combined Cycle), the fuel is first gasified with oxygen to produce a synthesis gas. This gas is then chemically converted into separate streams of carbon dioxide and hydrogen in the so-called shift reaction (CO+H2O ↔ CO2+H2). For this process, Linde provides the air separation unit for the production of oxygen, the gasification system as well as the synthesis gas separation and purification systems including shift and RECTISOL® selective CO2 recovery.

Process description Pre-combustion capture