MOF Enhanced Dielectric Barrier Discharge Plasma Decomposition of H2S in the Presence of Low Alkanes

IF 2.6 3区物理与天体物理 Q3 ENGINEERING, CHEMICAL Plasma Chemistry and Plasma Processing Pub Date : 2023-10-14 DOI:10.1007/s11090-023-10401-3

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.

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低烷烃存在下MOF增强介质阻挡放电等离子体分解H2S

天然气中总是存在一定的硫化氢。工业化脱除H2S工艺是一个能源密集型工艺，必须大规模应用。需要一个替代的过程。在这里，我们报道了用介质阻挡放电(DBD)从甲烷，乙烷和丙烷的模型天然气混合物中去除H2S，其中电介质(石英)被磨砂并涂覆一层沸石咪唑框架-67 (ZIF-67)纳米颗粒。在相同的比能量输入(SEI)下，与未涂覆的DBD相比，涂覆ZIF-67的DBD的平均电场和平均电子能量更高，H2S转化率高达75.4%，而甲烷转化率有限(低于2%)。没有检测到其他低烷烃的转化。这为偏远或偏远地区的天然气源中H2S的去除提供了一种潜在的方法。图形抽象

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来源期刊

Plasma Chemistry and Plasma Processing 工程技术-工程：化工

CiteScore

5.90

自引率

8.30%

发文量

审稿时长

6-12 weeks

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.