An apparatus for converting carbon dioxide and natural gas liquids into other chemicals and/or fuels, comprising at least one electrochemical cell, wherein the electrochemical cell reduces the endothermic load associated with electrochemical CO2 reduction, and a method for converting carbon dioxide and natural gas liquids into carbon monoxide and other chemicals and/or fuels, comprising converting CO2 into CO and converting C2H6 into C2H4 at a temperature in the range of 650° C.-750° C.