NOVELTY - Producing carbon monoxide and hydrogen containing effluent gas (20) involves introducing a fuel gas (7) and a reformer gas into a reactor system (14), the fuel gas including a hydrocarbon, and the reformer gas including at least one of steam or carbon dioxide; reacting the fuel gas and the reformer gas with a reactant solids under steam reforming temperatures and pressures to produce a carbon monoxide and hydrogen containing effluent and a spent solids; and withdrawing the effluent from the reactor system.    USE - For producing carbon monoxide and hydrogen containing effluent gas (claimed).    ADVANTAGE - The method has improved steam reforming and using lower cost material.    DETAILED DESCRIPTION - Producing carbon monoxide and hydrogen containing effluent gas (20) involves introducing a fuel gas (7) and a reformer gas into a reactor system (14), the fuel gas including a hydrocarbon, and the reformer gas including at least one of steam or carbon dioxide; reacting the fuel gas and the reformer gas with a reactant solids under steam reforming temperatures and pressures to produce a carbon monoxide and hydrogen containing effluent and a spent solids; withdrawing the effluent from the reactor system; including heat carrier particulates in the reactor system; and preheating the heat carrier particulates with a hot flue gas. The hydrocarbon comprises a member selected from methane, ethane, propane, butane, and/or naptha. The step of reacting occurs under partial oxidation conditions of the reactant solids. The heat carrier particulates are ceramic solids. The reactant solids comprise a member selected from calcium, calcium oxide, iron, and/or iron oxide. The heat carrier particulate comprises member selected from alumina beads, titania beads, and/or zirconia beads. An INDEPENDENT CLAIM is included for a system for producing carbon monoxide and hydrogen, comprising a reactor system containing a reactor operatively coupled to a regenerator so as to allow only flow of solid particulate between the reactor and the regenerator, where the reactor is staged and configured for counter-current flow of gases and solids and includes reactant solids and heat carrier particulates; a reactor gas inlet and a reactor gas outlet both attached to the reactor and positioned at opposite ends of the reactor; a regenerator gas outlet and a regenerator gas inlet both attached to the regenerator and positioned at opposite ends of the regenerator; and a spent solids recycle stream operatively connecting the reactor and the regenerator.    DESCRIPTION OF DRAWING(S) - The figure shows process for producing carbon monoxide and hydrogen containing effluent gas.    Fuel gas (7)    Reactor system (14)    Reactant (16)    Bed material (18)    Effluent gas (20)