A modular gas processing system, comprising: an outer housing configured to allow for modular placement of cells within the outer housing : a first cell and a second cell disposed within the outer housing , wherein each of the first cell and the second cell comprises a gas-liquid contacting surface area , wherein the first cell and the second cell share a common liquid space comprising a liquid reservoir, wherein the first cell and the second cell are fluidly coupled to one another via the common liquid space , and wherein the second cell is capable of being shut down as a function of a volume of flue gas to be processed, wherein the first cell comprises a first gas inlet , and wherein the second cell comprises a second gas inlet ; a fluid outlet coupled to each of the first cell and the second cell , wherein the common liquid space comprises a floor that slopes down towards the fluid outlet coupled to each of the first and second cells (110, , 210A, 310A 120, 210B, 310B), and wherein the first and second cells are separated by a first vertical wall having an opening in a bottom portion of the first wall , such that liquid within each cell can flow to an adjacent cell via the opening and a level of the liquid reservoir is above the opening ; a liquid inlet coupled to a first distributor disposed within the first cell and a second distributor disposed within the second cell , wherein the first distributor and the second distributor are configured to distribute a liquid within at least a portion of each of the first cell and the second cell ; and one or more exhaust outlets to allow the flue gas processed to leave the housing ; wherein the first cell and the second cell are independently operable. an outer housing configured to allow for modular placement of cells within the outer housing : a first cell and a second cell disposed within the outer housing , wherein each of the first cell and the second cell comprises a gas-liquid contacting surface area , wherein the first cell and the second cell share a common liquid space comprising a liquid reservoir, wherein the first cell and the second cell are fluidly coupled to one another via the common liquid space , and wherein the second cell is capable of being shut down as a function of a volume of flue gas to be processed, wherein the first cell comprises a first gas inlet , and wherein the second cell comprises a second gas inlet ; a fluid outlet coupled to each of the first cell and the second cell , wherein the common liquid space comprises a floor that slopes down towards the fluid outlet coupled to each of the first and second cells (110, , 210A, 310A 120, 210B, 310B), and wherein the first and second cells are separated by a first vertical wall having an opening in a bottom portion of the first wall , such that liquid within each cell can flow to an adjacent cell via the opening and a level of the liquid reservoir is above the opening ; a liquid inlet coupled to a first distributor disposed within the first cell and a second distributor disposed within the second cell , wherein the first distributor and the second distributor are configured to distribute a liquid within at least a portion of each of the first cell and the second cell ; and one or more exhaust outlets to allow the flue gas processed to leave the housing ; wherein the first cell and the second cell are independently operable. <EOS>