The CO2 reforming catalyst and process have been developed. The commercial size CO2 reforming catalyst has been demonstrating its activity and stability in the gas to liquid (GTL) pilot plant tests for around 6000 h, and the first GTL oil from natural gas in Japan has been being produced from November 2002 to October 2004. In these tests, synthesis gas was generated by CO2 and H2O reforming with low CO2/ carbon and low H2O/Carbon ratios in feed gas composition. The proprietary catalyst which has high resistance against carbon deposition could allow the stable operation under CO2 and H2O reforming conditions. The CO2 reforming simulator could well rep I resent the results of the pilot plant tests. The proposed process showed superior economics on the feasibility studies of applications to GTL processes. (c) 2005 Elsevier B.V. All rights reserved.