Chenyang Zhao , Yujia Liu , Hui Li , Fei An , Wei Xu , Zhe Yang , Bing Sun
{"title":"Sulfur-resistant MoO2/TS-1 zeolite armored PdCu alloy composite membrane for hydrogen separation under H2S containing steam","authors":"Chenyang Zhao , Yujia Liu , Hui Li , Fei An , Wei Xu , Zhe Yang , Bing Sun","doi":"10.1016/j.memlet.2023.100037","DOIUrl":null,"url":null,"abstract":"<div><p>Sulfur poisoning could result in fast deterioration of Pd-based membranes by the formation of metal sulfides and reduction of hydrogen purity. The introduction of an MoO<sub>2</sub>/TS-1 layer could provide an effective protection of the Pd layer. Therefore, in this paper a synthetic method is presented for preparation of sulfur-resistant MoO<sub>2</sub>/TS-1 zeolite modified PdCu alloy composite membranes and their application in hydrogen separation under H<sub>2</sub>S containing steam. According to the stability test results, the MoO<sub>2</sub>/TS-1 zeolite armored layer obviously prolonged the stability of Pd based membrane. After 50 h stability test with 100 ppm H<sub>2</sub>S, there were no obvious structural changes and metal sulfide formation detected in the PdCu bulk from SEM images and XRD patterns, indicating that MoO<sub>2</sub>/TS-1 armor structure was good enough for protecting the PdCu alloy bulk.</p></div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":4.9000,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Membrane Science Letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772421223000016","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 2
Abstract
Sulfur poisoning could result in fast deterioration of Pd-based membranes by the formation of metal sulfides and reduction of hydrogen purity. The introduction of an MoO2/TS-1 layer could provide an effective protection of the Pd layer. Therefore, in this paper a synthetic method is presented for preparation of sulfur-resistant MoO2/TS-1 zeolite modified PdCu alloy composite membranes and their application in hydrogen separation under H2S containing steam. According to the stability test results, the MoO2/TS-1 zeolite armored layer obviously prolonged the stability of Pd based membrane. After 50 h stability test with 100 ppm H2S, there were no obvious structural changes and metal sulfide formation detected in the PdCu bulk from SEM images and XRD patterns, indicating that MoO2/TS-1 armor structure was good enough for protecting the PdCu alloy bulk.
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