The last decade has seen an increase in exploitation of unconventional resources of natural gas, such as shale gas and deep offshore. There are various challenges with monetizing these gas reservoirs, principally in the transport to market. The gas must have key contaminants removed depending on the form of transport as pipelines have a set of specifications to meet. For example, liquefied natural gas requires water, acid gases and heavier hydrocarbons removed, while compressed natural gas requires water and possibly heavier hydrocarbons removal. For offshore operations, conventional gas processing systems are typically not feasible as the space on offshore platform is often limited. Further the performance of contacting equipment can be susceptible to motion effects. Removal of acid gases, carbon dioxide and hydrogen sulfide (CO2 and H2S) is particularly problematic due to energy and space requirements of typical treatment methods (absorption columns). In recent years, membrane based separation units have been considered a promising alternative to conventional gas absorption technology since they can offer more compact design, lower cost and potentially higher efficiency [1] and [2]. Hollow fiber membrane contactors (HFMCs) are of particular interest for offshore gas processing because they provide a larger mass transfer interfacial area relative to the contactor volume, compared to flat sheet membrane modules [1], [2], [3] and [4].