Abstract: Compact synthesis gas generation systems are provided incorporating effective gas purification means to control the purity of the desired components of the synthesis gas product. The compact synthesis gas generation systems of the invention may particularly incorporate compact rotary pressure swing adsorption systems to accomplish the required gas purification. The compact synthesis gas generation systems of the invention may be adapted to utilize various fuel feedstock's and reforming reactor technologies known generally in the art, and are particularly suitable for use in applications where equipment size is desirably minimized, such as mobile applications.