METHOD OF MICROWAVE PLASMA-CHEMICAL CONVERTING METHANE IN SYNTHESIS GAS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC B01J19/00 

FIELD: chemistry.

SUBSTANCE: pressure is created in the working chamber to 0.1-0.5 mm Hg, methane is fed into the working chamber to a pressure of 740-750 mm Hg and water in an amount of 0.9-1 cm³. Then the working chamber is heated to a temperature of 120-130°C, microwave radiation is introduced through the window to form a plasma and the entire volume of the working chamber is filled with plasma. The device for microwave plasma-chemical conversion of methane to synthesis gas contains a source of microwave energy, a working chamber with a ratio of the internal dimensions of the chamber of diameter and length of 0.4<D_k/L_k<0.3 and a heating element located on the outer surface of the working chamber, connected through a thermocouple with a thermostat. At one end of the working chamber, an entrance window is made with a ratio of its diameter to the diameter of the working chamber of 0.8<D_o/D_k<1. At the other end of the chamber, there are nozzles for evacuation and input of the working medium. The initiator is placed in the chamber on the opposite side of the window.

EFFECT: high efficiency of converting methane to synthesis gas, increasing the productivity and reducing the thermal influence on structural elements due to certain constructive performance and features of formation and development of plasma.

7 cl, 1 dwg