The present study proposes a device for process intensification for liquid-liquid flow systems in millimeter size conduits. This is accomplished by incorporating a 900 bend such that the flow is initially horizontal and then in downward direction. The device intensifies mass transfer controlled processes by enhancing the range of Taylor regime and decreasing the range of parallel flow, both contributing positively to enhanced mass transfer as compared to straight conduits. The proposed device has been numbered up by incorporating multiple bends connecting short horizontal sections to vertical up and downflow sections. This system is noted to be more effective than a helical coil which is a commonly used process intensification device in practical applications. The effectiveness has been quantified by considering the (a) overall volumetric mass transfer coefficient, (b) extraction efficiency and (c) energy dissipation parameter. (C) 2015 Elsevier B.V. All rights reserved.