Adsorption desulphurisation of dimethyl sulphide using nickel-based Y zeolites pretreated by hydrogen reduction

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• 作者：Xiao-Ling Yu ; Yan-Nan Lu ; Huan Huang ; De-Zhi Yi ; Li Shi ; Xuan Meng
• 关键词：adsorption desulphurisation ; nickel ; dimethyl sulphide ; ultrasonic aid
• 刊名：Chemical Papers
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：70
• 期：3
• 页码：294-304
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering; Biochemistry, general; Medicinal Chemistry; Materials Science, general; Biotechnology;
• 出版者：Springer International Publishing
• ISSN：1336-9075
• 卷排序：70

文摘

A series of nickel-modified Y zeolites were prepared for the adsorption of dimethyl sulphide (DMS) in liquid hydrocarbon streams. The adsorption desulphurisation performance was investigated under ambient conditions of nickel-based adsorbents developed by the liquid-phase ion exchange (LPIE) method and the incipient wetness impregnation (IWI) method with and without the ultrasonic aid technique. It was found that the nickel-modified Y zeolite prepared by the IWI method with the ultrasonic aid technique with hydrogen reduction demonstrated a high sulphur capacity of 69.9 mg of S per g of sorbent at a break-through sulphur level of 10 μg g−1. The sorbents thus prepared were characterised by elemental analysis, XRD, TPR, H₂ chemisorption, pyridine-FTIR, XPS, and SEM. The results showed that a high dispersion of metallic nickel atoms loaded on Y zeolite had an important role in determining the DMS removal capacity and the adsorption behaviour exhibited a pronounced dependence on the metal introduction method.