The effect of temperature on the hydrodynamics of trickle-bed liquid cyclic operation was studied. The trickling-to-pulsing transition in cyclic operation (tpT(CO)) was compared to spontaneous transition (tpT(s)) in constant-throughput flow, as well as the corresponding pulsing flow regimes. The effect of temperature on tpT(CO) and tpT(s), and on liquid holdup and shock wave plateau time, was assessed for (non-)Newtonian liquids. The effects of temperature and superficial gas velocity on pulse velocity and pulse frequency were evaluated for pulsing flow in cyclic and constant-throughput flows. With increased temperature, tpT(CO) shifted to higher gas and liquid velocities; however, the modified Charpentier-Favier diagram still adequately captured both tpT(CO) and tpT(S) evolutions with temperature. (c) 2006 Elsevier Ltd. All rights reserved.