The performance of Mo-doped Ni/Al2O3 catalyst for dry reforming of C3H8 has been studied in a fixed-bed reactor at 0.1 MPa and 923 K. H-2 and CO formation rates as well as CO2 consumption rate all increased with C3H8 partial pressure attaining a maximum (at P-C3H8 = 25 kPa) before the decline at higher values. The observed rate profiles implicated an optimal feed CO2:C3H8 ratio of about 3. However, both CH4 formation and C3H8 consumption rates increased monotonically with C3H8 partial pressure suggesting that the former was produced from the direct decomposition of the latter even under the relatively high CO2 partial pressure (60 kPa) used. The downturn in CO2 consumption rate at about 25 P-C3H8 kPa is consistent with the reduction in catalyst activity under severe carbon deposition. Time-on-stream analysis over a 48-h period revealed that Mo-Ni is a stable and active catalyst for the propane dry reforming reaction. Total organic carbon (TOC) measurements showed that increased CO2 partial pressure decreased the carbon deposition significantly, while increased C3H8 partial pressure led to severe carbon deposition. A dual-site (acid or metal site for propane dissociative adsorption and CO2 chemisorption on a basic site) Langmuir-Hinshelwood mechanism for the reaction was also proposed.