METHOD OF STEAM CATALYTIC CONVERSION OF NATURAL GAS INTO SYNTHESIS-GAS AND DEVICE FOR REALIZATION OF THIS METHOD

摘要

FIELD: steam catalytic conversion of natural gas into synthesis-gas with the use of thermal and kinetic energy of synthesis-gas. ^ SUBSTANCE: proposed method includes external heating of reaction tubes of tubular furnace filled with nickel catalyst on aluminum oxide substrate by passing mixture of natural gas and superheated steam through them. External heating of reaction tubes filled with catalyst is performed by burning the natural gas in air at exhaust of flue gases from heating zone. After tubular furnace, the synthesis-gas is directed to gas turbine for utilization of thermal and kinetic energy; gas turbine rotates electric generator; then, synthesis-gas is directed to synthesis-gas burner of electric power and heat supply system; flue gases from external heating zone are directed to heat exchangers for preheating the natural gas and steam before supplying them to reaction tubes of tubular furnace. Device proposed for realization of this method includes sulfur cleaning unit, tubular furnace with reaction tubes filled with nickel catalyst on aluminum oxide substrate with inlet for gas mixture of natural gas and superheated steam; device also includes external heating zone for reaction tubes with flue gas outlet and gas burner for external heating of reaction tubes of tubular furnace with inlet for natural gas and air. For utilization of thermal and kinetic energy of synthesis-gas, device is provided with gas turbine and electric generator at tubular furnace outlet and synthesis-gas burner of electric power and heat supply system; device is also provided with heat exchangers for preheating the natural gas and steam before supplying them to tubular furnace. ^ EFFECT: improved ecological parameters; enhanced power efficiency of process. ^ 3 cl, 1 dwg