4.7 Article

Influence of hydrogen addition on methane coupling in a moderate pressure microwave plasma

期刊

FUEL
卷 288, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2020.119674

关键词

Methane coupling; Microwave plasma; Hydrogen; Ethylene; Acetylene

资金

  1. Polish Ministry of Science and Higher Education [049M/0014/19]
  2. Netherlands Organization for Scientific Research (NWO)
  3. ENW PPP Fund

向作者/读者索取更多资源

The study showed that adding hydrogen can increase methane conversion, acetylene and ethylene yield and selectivity in a microwave moderate pressure plasma reactor. It was also found to decrease the output of problematic soot-like products. This indicates that hydrogen addition is a simple yet effective method for enhancing selectivity in plasma reforming of methane.
In this paper, the effect of hydrogen addition on methane coupling in a microwave moderate pressure (55 mbar and 110 mbar) plasma reactor has been studied. The use of optical emission spectroscopy allowed the determination of the rotational temperature of heavy particles and showed it to be in the range of 3000-4000 K. Due to the high temperature in the discharge the dominant product was acetylene and it was concluded that the methane coupling process is mainly through thermal decomposition with a key role of H radicals. It was revealed that the addition of hydrogen can increase both methane conversion and acetylene and ethylene yield and selectivity. With the CH4:H-2 ratio of 1:1, the methane conversion increased from 31.0% to 42.1% (55 mbar) and from 34.0% to 48.6% (110 mbar), when compared to pure methane plasma. Respectively, the yield of acetylene increased from 14.4% to 25.3% (55 mbar) and from 20.1% to 34.0% (110 mbar). Moreover, the addition of hydrogen decreased the output of the problematic soot-like product. These results indicate that hydrogen addition can be a simple yet effective method of increasing selectivity to desirable products in plasma reforming of CH4.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据