Patent ID: 8632626

Claim:
A system for removing CO 2 from an input gas stream, the system comprising: a carboniser segment configured such that a solid sorbent reacts therein with the input gas stream to remove CO 2 from the input gas stream; a calciner segment configured such that the solid sorbent from the carboniser segment reacts therein to release the CO 2 into a substantially pure gas stream; a heat exchanger unit for exchanging heat between the carboniser and calciner segments; a first conditioning unit for controlling a CO 2 partial pressure and temperature in the carboniser segment; and a second conditioning unit for controlling a CO 2 partial pressure and temperature in the calciner segment; wherein the first conditioning unit comprises a pressurization element and a first heater for controlling an input temperature of the input gas stream into the carboniser configured such that the carboniser segment operates at the higher temperature than the calciner segment, so that heat liberated by a sorption chemical reaction in the carboniser segment is provided to the calciner segment through the heat exchanger for consumption by a desorption chemical reaction.