Yingwen Li, Fei Gao, Yang Li, Chenyang Shen, Chang-jun Liu
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引用次数: 1
Abstract
There exist always some H2S in natural gas. The industrialized process for H2S removal is an energy intense process and must be applied in a large scale. An alternative process is needed. Herein, we report a removal of H2S from a model natural gas mixture with methane, ethane and propane by dielectric barrier discharge (DBD), with which the dielectric (quartz) is frosted and coated with a layer of zeolite imidazole framework-67 (ZIF-67) nanoparticles. Compared to the DBD without coating, the average electric field as well as the mean electron energy of the DBD with ZIF-67 coating are higher at the same specific energy input (SEI), leading to a high H2S conversion of 75.4% with the limited conversion of methane (less than 2%). No conversions of other low alkanes can be detected. This provides a potential way for the H2S removal from the natural gas sources in the remote or isolated region.
期刊介绍:
Publishing original papers on fundamental and applied research in plasma chemistry and plasma processing, the scope of this journal includes processing plasmas ranging from non-thermal plasmas to thermal plasmas, and fundamental plasma studies as well as studies of specific plasma applications. Such applications include but are not limited to plasma catalysis, environmental processing including treatment of liquids and gases, biological applications of plasmas including plasma medicine and agriculture, surface modification and deposition, powder and nanostructure synthesis, energy applications including plasma combustion and reforming, resource recovery, coupling of plasmas and electrochemistry, and plasma etching. Studies of chemical kinetics in plasmas, and the interactions of plasmas with surfaces are also solicited. It is essential that submissions include substantial consideration of the role of the plasma, for example, the relevant plasma chemistry, plasma physics or plasma–surface interactions; manuscripts that consider solely the properties of materials or substances processed using a plasma are not within the journal’s scope.