Method for modifying carbon dioxide using carbon black catalyst

A method of producing synthesis gas by carbon dioxide reforming, comprising:

• a) supplying a hydrocarbon and carbon dioxide into a fluidized-bed reactor using carbon black particles as a catalyst;
• b) reacting the hydrocarbon and the carbon dioxide under fluidization conditions to prepare a gas product containing synthesis gas and simultaneously to form the carbon black particles in an increased amount in the reactor;
• c) separating the gas product and the carbon black particles from the fluidized-bed reactor;
• and
• d) separating at least a portion of the carbon black particles, and recycling a remainder of the carbon black particles into the fluidized-bed reactor.