A desanding system has an elongated vessel that is tilted at a non-zero inclination angle. The vessel has an upper end that tilts downwardly towards a distal end and has a diverging bounding wall so as to define a top wall having a first inclination angle and a bottom wall having a second inclination angle greater than the first inclination angle. A fluid inlet interface at the vessel's upper end discharges a gas stream, having entrained liquids and particulates, into a freeboard portion formed adjacent the top wall above a gas/liquid interface formed below the fluid outlet. A cross-sectional area of the freeboard portion causes precipitation of the entrained liquids and particulates therefrom for collection in a belly storage portion formed below the interface. A desanded gas stream, being free of a substantial portion of the particulates is removed from the vessel through a fluid outlet adjacent the distal base.