Process to conduct an alkane transformation into olefins in an electrified fluidized bed reactor

A process to perform an alkane transformation into olefin;

• said process comprising the steps of:
• a) providing a stream of light alkane-comprising feedstock comprising one or more alkanes selected from methane, ethane, propane, butane, isobutane and any mixture thereof and one or more oxidants selected from carbon dioxide, carbonyl sulphide and any mixture thereof, wherein oxidant content amounts least 15 vol. % based on the total volume of the light alkane-comprising feedstock;
• and further providing at least one fluidized bed reactor comprising at least two electrodes and a bed comprising particles;
• b) putting the particles of the bed in a fluidized state to obtain a fluidized bed;
• c) heating the fluidized bed to a temperature ranging from 600° C. to 1500° C. to conduct the transformation into olefin on the light alkane-comprising feedstock;
• and
• d) optionally, recovering the products of the reaction;
• characterized in that the step c) of heating the fluidized bed is performed by passing an electric current through the fluidized bed;
• in that the particles of the bed comprise electrically conductive particles and particles of a catalytic composition;
• in that, at least 10 wt. % of the particles based on the total weight of the particles of the bed are electrically conductive particles and have a resistivity ranging from 0.001 Ohm·cm to 500 Ohm·cm at 800° C.;
• in that the void fraction of the bed is ranging from 0.5 to 0.8 and the particles of the bed have an average particle size ranging from 5 to 300 μm as determined by sieving according to ASTM D4513-11;
• and in that the catalyst composition comprises one or more selected from rare earth oxides, rare earth sulphides, transition metal oxides, and any mixture thereof and/or one or more selected from Na—W—Mn/SiO2, NaCl—MnNa2WO4/SiO2, La2O3—CeO2, Li/MgO, CaO—Sm2O3, KCl—SmCl3, CaO—NaCl/Na2CO3, CeO2/ZnO, La2O3/Al2O3 and FeSx, the catalyst composition further comprising one or more dopants when one oxidant of the light alkane-comprising feedstock is carbon dioxide.