A modular gas processing system, comprising: an outer housing configured to allow for modular placement of cells within the outer housing: a first cell (110, 210A, 310A) and a second cell (120, 210B, 310B) disposed within the outer housing, wherein each of the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) comprises a gas-liquid contacting surface area (114,124), wherein the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) share a common liquid space comprising a liquid reservoir, wherein the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) are fluidly coupled to one another via the common liquid space, and wherein the second cell (120, 210B, 310B) is capable of being shut down as a function of a volume of flue gas to be processed, wherein the first cell (110, 210A, 310A) comprises a first gas inlet, and wherein the second cell (120, 210B, 310B) comprises a second gas inlet; a fluid outlet coupled to each of the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B), 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 (110, 210A, 310A, 120, 210B, 310B) are separated by a first vertical wall having an opening in a bottom portion of the first wall, such that liquid within each cell (110, 210A, 310A,120, 210B, 310B) can flow to an adjacent cell (110, 210A, 310A,120, 210B, 310B) 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 (110, 210A, 310A) and a second distributor disposed within the second cell (120, 210B, 310B), 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 (110, 210A, 310A) and the second cell (120, 210B, 310B); and one or more exhaust outlets to allow the flue gas processed to leave the housing; wherein the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) are independently operable. an outer housing configured to allow for modular placement of cells within the outer housing: a first cell (110, 210A, 310A) and a second cell (120, 210B, 310B) disposed within the outer housing, wherein each of the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) comprises a gas-liquid contacting surface area (114,124), wherein the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) share a common liquid space comprising a liquid reservoir, wherein the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) are fluidly coupled to one another via the common liquid space, and wherein the second cell (120, 210B, 310B) is capable of being shut down as a function of a volume of flue gas to be processed, wherein the first cell (110, 210A, 310A) comprises a first gas inlet, and wherein the second cell (120, 210B, 310B) comprises a second gas inlet; a fluid outlet coupled to each of the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B), 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 (110, 210A, 310A, 120, 210B, 310B) are separated by a first vertical wall having an opening in a bottom portion of the first wall, such that liquid within each cell (110, 210A, 310A,120, 210B, 310B) can flow to an adjacent cell (110, 210A, 310A,120, 210B, 310B) 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 (110, 210A, 310A) and a second distributor disposed within the second cell (120, 210B, 310B), 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 (110, 210A, 310A) and the second cell (120, 210B, 310B); and one or more exhaust outlets to allow the flue gas processed to leave the housing; wherein the first cell (110, 210A, 310A) and the second cell (120, 210B, 310B) are independently operable.