Linde–Frank–Caro process

The Linde–Frank–Caro process is a method for hydrogen production by removing hydrogen and carbon dioxide from water gas by condensation.[1][2] The process was invented in 1909 by Adolf Frank and developed with Carl von Linde and Heinrich Caro.[3]

Process descriptionEdit

Water gas is compressed to 20 bar and pumped into the Linde-Frank-Caro reactor. A water column removes most of the carbon dioxide and sulfur. Tubes with caustic soda then remove the remaining carbon dioxide, sulphur, and water from the gas stream. The gas enters a chamber and is cooled to −190 °C, resulting in the condensation of most of the gas to a liquid. The remaining gas is pumped to the next vessel where the nitrogen is liquefied by cooling to −205 °C, resulting in hydrogen gas as an end product.

See alsoEdit