Layered double hydroxides obtained via co-precipitation method possess a kind of hydrotalcite structure comprising Ni2+/Co2+/Mg2+/Al3+ cations in various amounts. Upon calcination of the hydrotalcite precursor, NiCoMgAl mixed oxides catalysts of varying Ni:Co ratio (0.3, 1.0 and 3.0) were obtained. These catalysts were tested for steam reforming of acetone at temperatures between 450 and 550 degrees C, with a molar feed (water/acetone) ratio of 4-10 and in the space-time range of 10-24 kg cat h/kmol acetone. Around 99% conversion of acetone was obtained over all the mixed oxide catalysts. However, a maximum hydrogen selectivity of similar to 80% was obtained over NiCoMgAl(0.33). The time-on-stream behaviour was studied for 4 h at 500 degrees C and water/acetone molar ratio of 6. The catalyst showed good stability at the reforming conditions. Both homogeneous and heterogeneous kinetic models were developed for the complex reforming reaction systems. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.