APPARATUS FOR EXECUTING LOW-TEMPERATURE PLASMA REACTION AND METHOD FOR DECOMPOSING HYDROGEN SULPHIDE Russian patent published in 2021 - IPC C01B17/04 C01B3/04 B01D53/32 B01D53/74 B01D53/52 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of plasma chemistry, in particular, to an apparatus for executing a low-temperature plasma reaction and to a method for decomposing hydrogen sulphide, implemented in said apparatus. The apparatus comprises: a first cavity (1) with a first inlet (11) and a first outlet, respectively; a second cavity (2) located outside around the first cavity or inside thereof, and a second inlet (21) and a second outlet (22) located in the second cavity (2), respectively; an inner electrode (3), at least part whereof passes into the first cavity (1); an outer electrode (4) forming at least part of the side wall of the first cavity (1) or located on the side wall of the first cavity (1), surrounding said cavity; a grounding wire (5), wherein one end of the grounding wire (5) is electrically connected with the grounding electrode constituting one electrode from said outer electrode (4) and inner electrode (3), wherein the other electrode from said outer electrode (4) and inner electrode (3) constitutes a high-voltage electrode, and a barrier dielectric (6) located between the inner electrode (3) and the outer electrode (4) so that the discharge area between the inner electrode (3) and the outer electrode (4) is separated by the barrier dielectric (6). Both the inner electrode (3) and the outer electrode (4) therein constitute solid electrodes, wherein the shapes of the inner electrode (3) and the outer electrode (4) are matched forming an isodiametrical structure. Additionally, if the distance between the outer side wall of the inner electrode (3) and the inner side wall of the outer electrode (4) is set as L₁ and the thickness of the dielectric barrier (6) is set as D₁, wherein L₂=L₁-D₁, the proportion between L₂ and D₁ is (0.1 to 100):1.

EFFECT: increasing the conversion of hydrogen sulphide and reducing the power consumption during decomposition.

28 cl, 12 dwg, 20 ex