31results about How to "Large micro discharge current" patented technology

The present invention relates to the field of plasma chemistry, and discloses low temperature plasma reaction equipment and a hydrogen sulfide decomposing method. The reaction equipment comprises: aninner cylinder (1); an outer cylinder (2) nested on the outer portion of the inner cylinder (1); a center electrode (3) arranged in the inner cylinder (1); a grounding electrode (4) formed by a solidelectric-conduction material, wherein the grounding electrode forms at least part of the side wall of the inner cylinder or is arranged around the inner side wall of the inner cylinder; and a barriermedium arranged between the grounding electrode and the center electrode. According to the present invention, the low temperature plasma reaction equipment can achieve the continuous and stable performing of the hydrogen sulfide decomposition process at a significantly high hydrogen sulfide conversion rate, and can achieve long-cycle operation.

The invention relates to the field of plasma chemistry, and discloses a low-temperature plasma device for decomposing hydrogen sulfide and a method for decomposing hydrogen sulfide. The device contains a gas supply-gas distribution unit, a plasma reaction unit and a product separation unit connected sequentially through pipelines. The plasma reaction unit contains a low-temperature plasma reactor and a plasma power supply. The reactor includes: an inner cylinder, an outer cylinder, a central electrode arranged in the inner cylinder, and a side wall arranged around the inner cylinder or wrapped in the center The outer surface of the electrode or the barrier medium forming the side wall of the inner cylinder, the ground electrode; the thickness L of the discharge air gap 1 with the thickness of the barrier dielectric D 1 The proportional relationship is: L 1 :D 1 =(0.05~100):1. The low-temperature plasma device for decomposing hydrogen sulfide and the method for decomposing hydrogen sulfide provided by the invention can improve the conversion rate of hydrogen sulfide.

The invention relates to the field of plasma chemistry, and discloses a multi-reaction-tube low-temperature plasma device and a method for decomposing hydrogen sulfide, the device comprising: a firstcavity (1) formed by at least two parallel reaction tubes; the second cavity (2) that is nested in the first cavity (1); the third cavity (7) that is nested outside the first cavity (1); and an innerelectrode (3), an outer electrode (4) and a blocking medium (6) that are respectively arranged in each reaction tube. The multi-reaction-tube low-temperature plasma reaction device provided by the invention can be used for plasma decomposition of hydrogen sulfide, and the reactor can generate uniform and efficient dielectric barrier discharge, so that hydrogen sulfide is directly decomposed into hydrogen and sulfur.

The invention relates to the field of plasma chemistry, and discloses a method for decomposing hydrogen sulfide by plasma, comprising: introducing raw material gas containing hydrogen sulfide into a plasma system containing a plasma reactor for sulfurization under dielectric barrier discharge conditions Hydrogen decomposition reaction, the dielectric barrier discharge conditions include: a discharge voltage of 5-30kV, a discharge frequency of 200-30000Hz; and the conditions of the hydrogen sulfide decomposition reaction include: a reaction temperature of 0-800°C, a reaction pressure of -0.06 MPa to 0.6MPa, the residence time of the reactant in the plasma reactor is 1×10 ‑5 ~120s. The method for decomposing hydrogen sulfide by plasma provided by the present invention can obtain a higher conversion rate of hydrogen sulfide under dielectric barrier discharge conditions by adopting specific discharge conditions and hydrogen sulfide decomposition reaction conditions.

The invention relates to the field of plasma chemistry, and discloses a high-flux low-temperature plasma discharge device and a method for decomposing hydrogen sulfide, comprising: a first cavity (1); The second cavity (2); the high-voltage electrode (3) and the ground electrode (4) arranged in the first cavity (1), a blocking medium, and the blocking medium is arranged on the high-voltage electrode (3) and / or the The outer surface of the ground electrode (4). The low-temperature plasma discharge device provided by the present invention has the advantages of high hydrogen sulfide conversion rate, low energy consumption and capable of realizing large-flow hydrogen sulfide treatment.

The invention relates to the field of plasma chemistry, and discloses a low temperature plasma system for decomposing hydrogen sulfide, and a method for decomposing hydrogen sulfide. The system comprises a gas supply-gas distribution unit, a plasma reaction unit and a product separation unit, wherein the gas supply-gas distribution unit, the plasma reaction unit and the product separation unit aresequentially connected through pipelines, the plasma reaction unit comprises a low temperature plasma reactor and a plasma power source, the reactor comprises an inner cylinder, an outer cylinder, acenter electrode arranged in the inner cylinder, a barrier medium and a grounding electrode, the barrier medium is arranged around the side wall of the inner cylinder or wraps the outer surface of thecenter electrode or forms the side wall of the inner cylinder, and a ratio (L1:L2) of the thickness L1 of a discharge gas gap to the length L2 of a discharge region is 1:(0.5-6000). According to thepresent invention, with the apparatus and the method, the hydrogen sulfide conversion rate can be increased.

The invention relates to the field of plasma chemistry, and discloses a high-flux plasma reaction apparatus and a hydrogen sulfide decomposing method. The high-flux plasma reaction apparatus comprises: an inner cylinder (1) containing reaction pipes (14); an outer cylinder (2) nested on the outer portion of the inner cylinder (1); center high-voltage electrodes (3); grounding electrodes (4) respectively arranged around the outer side walls of each reaction pipe (14) or forming the side wall; and a barrier medium arranged on at least part of the outer surface of the center high-voltage electrode (3), wherein a ratio (L1:L2) of the distance L1 between the outer side wall of the barrier medium and the inner side wall of the grounding electrode and the length L2 of a discharge area is (0.5-6000). According to the present invention, the apparatus can achieve the continuous and stable performing of a hydrogen sulfide decomposing process at a significantly high hydrogen sulfide conversion rate, and can achieve long-period operation.

The invention relates to the field of plasma chemistry, and discloses a multi-reaction-tube plasma device and a method for decomposing hydrogen sulfide; the multi-reaction-tube plasma device comprises: a first cavity (1) formed by at least two parallel reaction tubes; a second cavity (2) that is nested in the first cavity (1); and an inner electrode (3), an outer electrode (4) and a blocking medium (6) that are respectively arranged in each reaction tube. The multi-reaction-tube plasma device provided by the invention can be used for plasma decomposition of hydrogen sulfide, and the reactor can generate uniform and efficient dielectric barrier discharge, so that hydrogen sulfide is directly decomposed into hydrogen and sulfur.

The invention relates to the field of plasma chemistry, and discloses a plasma reactor and a method for decomposing hydrogen sulfide. The reactor comprises: an inner cylinder (1); an outer cylinder (2) nested in the outer portion of the inner cylinder (1); a center electrode (3) arranged in the inner cylinder (1); a grounding electrode (4) formed by a solid electric-conduction material, wherein the grounding electrode forms at least part of the side wall of the inner cylinder or is arranged around the inner side wall of the inner cylinder; and a barrier medium (6) arranged on at least part ofthe outer surface of the center electrode (3). According to the present invention, the low temperature plasma reactor can achieve the continuous and stable performing of the hydrogen sulfide decomposition process at a significantly high hydrogen sulfide conversion rate, and can achieve long-cycle operation.

The invention relates to the field of plasma chemistry, and discloses a high-throughput low-temperature plasma system for decomposing hydrogen sulfide and a method for decomposing hydrogen sulfide. The system includes a gas supply-gas distribution unit, a plasma reaction unit and a product separation unit. The reaction unit contains a low-temperature plasma reactor, which includes: an inner cylinder (1) containing a reaction tube (14); an outer cylinder (2) nested outside the inner cylinder; An electrode (3); a ground electrode (4) arranged on the side wall of the reaction tube or forming the side wall of the reaction tube; a barrier medium (6), the barrier medium forms the side wall of the reaction tube, or the barrier medium is arranged around the reaction tube on the side wall of the central high-voltage electrode (3), or the barrier medium is arranged on the outer surface of the central high-voltage electrode (3). The high-throughput low-temperature plasma system for decomposing hydrogen sulfide and the method for decomposing hydrogen sulfide provided by the invention have the advantage of high conversion rate of hydrogen sulfide.