Water-saving liquid-gas conditioning system

A method for treating a process gas with a liquid, the method comprising:

• contacting a process gas with a hygroscopic working fluid in a liquid-gas contactor, the process gas comprising a constituent and the working fluid comprising a desiccant and a component adapted to absorb or react with the constituent of the process gas;
• wherein contacting the process gas with the working fluid removes the constituent from the process gas;
• then,
• separating a reaction product from the working fluid after contacting the process gas with the hygroscopic working fluid, wherein the reaction product comprises at least one of the constituent of the process gas absorbed into the component of the working fluid or a product of a reaction between the constituent of the process gas and the component of the working fluid;
• and then
• recirculating the working fluid back to the liquid-gas contactor after separating the reaction product from the working fluid.

A system for treating a process gas, the system comprising:

• a hygroscopic working fluid comprising a component adapted to absorb or react with a constituent of a process gas;
• and
• a liquid-gas contactor for contacting the working fluid and the process gas;
• wherein the constituent is removed from the process gas within the liquid-gas contactor.