Importance

Loading Importance Indicators...

Abstract

A method of recovering ammonia bicarbonate from a biogas and digestate liquor uses an arrangement of equipment in an operational arrangement that requires relatively modest capital investment and that operates with simplicity to provide solid ammonia bicarbonate. In a specific form the method achieves this by upgrading of biogas to produce a rejected stream having a high mole fraction of CO₂ at an elevated pressure that eliminates the need for further compression when using the CO₂ for recovery of ammonia bicarbonate. The method operates can operate at a high pH produced inherently in a digestate stripper by concurrently stripping dissolved CO₂ from solution to improve the simplicity of solid AB recovery.

Loading the Abstract Image...

First Claim