System and method for processing flue gas

Abstract

The present invention relates to systems and methods for removing CO2 from an input gas stream. The system includes a carbonizer section configured such that solid sorbent reacts therein with an input gas stream to remove CO from the input gas stream; a calciner section configured such that solid sorbent from the carbonizer section reacts therein to convert CO release into a substantially pure gas stream; a heat exchanger unit for exchanging heat between the carbonizer section and the calciner section; a first regulation unit for controlling the CO partial pressure in the carbonizer section; and a second regulation unit for controlling the partial pressure of CO in the calciner section; wherein the first and second adjustment units are configured so as to control the difference between the partial pressure of CO in the carbonizer section and the calciner section, respectively, thereby passing heat An exchange unit provides heat from the carbonizer to the calciner.

Description

technical field [0001] The present invention is primarily concerned with the removal of CO from input gas streams 2 systems and methods. Background technique [0002] There is a need for methods that can capture CO from flue or fuel gases produced by, for example, power plants, cement plants, and steel plants 2 , to mitigate the CO 2 Global warming caused by emissions. Separation of CO from gases such as flue gases produced in industrial processes 2 is the first step in a carbon capture and sequestration (CCS) process in which CO is separated 2 , compressed into a high-density fluid, transported and isolated (sequester) in deep saline aquifers, depleted oil and gas fields, deep coal seams, or deep sea reservoirs (reservoir). [0003] Due to the release of CO 2 There are very large investments associated with the existing industrial infrastructure, so preferably, the separation process can be modified to capture the flue gas exhausted from the above existing infrastruct...

AI Technical Summary

Problems solved by technology

This increases the capital cost and footprint of the CCS system or reduces the efficiency of the power plant and produces CO2 resulting in avoided net CO2 reductions

Images