CO2 ADSORPTION AND RECOVERY SYSTEM AND METHOD

摘要

A CO2 adsorption and recovery system including an intake unit, a first purification/adsorption/regeneration unit, a second purification/adsorption/regeneration unit, a three-way valve switching unit, a vacuum drawing unit and an exhaust unit is provided. The first and second purification/adsorption/regeneration units have a hollow fiber bundle impurity adsorption column, a hollow fiber bundle CO2 adsorption column and two heating devices. One set of adsorption columns performs purification and adsorption procedures to the inlet gas in a normal or high pressure condition, and the other set of adsorption columns performs desorption and regeneration procedures in a high temperature condition when the adsorption columns are heated by the heating devices. The three-way valve switching unit exchanges the purification and adsorption procedures with the regeneration procedure to the first and second units. The vacuum drawing unit draws CO2 desorbed from the CO2 adsorption columns alternatively. The exhaust unit drains a purified product gas out.

主权项

1. A CO2 adsorption and recovery system, comprising:
an intake unit for providing an inlet gas; a first purification/adsorption/regeneration unit having a hollow fiber bundle impurity adsorption column, a hollow fiber bundle CO2 adsorption column, and two heating devices disposed around respective adsorption column; a second purification/adsorption/regeneration unit having the other hollow fiber bundle impurity adsorption column, the other hollow fiber bundle CO2 adsorption column and the other two heating devices disposed around respective adsorption column, one set of hollow fiber bundle impurity and CO2 adsorption columns performs purification and adsorption procedures to the inlet gas in a normal or high pressure condition, and the other set of hollow fiber bundle impurity and CO2 adsorption columns performs desorption and regeneration procedures in a high temperature condition when the other set of adsorption columns are heated by the other two heating devices thereof; a three-way valve switching unit used to exchange the purification and adsorption procedures with the desorption and regeneration procedures to the first and second purification/adsorption/regeneration units: a vacuum drawing unit for drawing CO2 desorbed from the two hollow fiber bundle CO2 adsorption columns alternatively; and an exhaust unit used to drain a purified product gas out.