2014年4月1日星期二

Oxygen permeable membrane reactor Improve Efficiency of methane aromatization

Recently, the Chinese Academy of Sciences , Qingdao Institute of Bioenergy and membrane separation processes and catalysis researcher team leader with clear rivers and University of Hannover , Germany , You Lixi research centers, companies and other institutions Bayer researchers collaborate , try oxygen permeable membrane reactor for methane aromatization reaction of benzene and its derivatives.Washi tape


According to reports , methane aromatization is an effective way to direct conversion of methane to liquid products , and has great significance in terms of catalytic science and industrial applications. His early research focused on the development of high catalyst activity, high stability . Mo/ZSM-5 catalysts are currently being widely studied and used . But there are easy to coke deactivation , the methane conversion rate and other issues such catalysts. Researchers trying to introduce a mild oxidizing agent or an amount of oxygen in the system to achieve selective catalytic conversion of methane .Wholesale masking tape


Rivers and other researchers try to clear methane aromatization reaction in oxygen permeable membrane reactor. Since the reaction uses a perovskite oxygen permeable membrane , so that oxygen may be oxygen permeable membrane to another side of the rotor from the air , water and hydrogen to produce methane aromatization reaction and the generated , to break the chemical balance, improve the conversion of methane rate. Furthermore, by using the gas permeable membrane reactor , the nitrogen may be retained on the air side , or entering the methane - aromatic system. Meanwhile researchers also found that due to the presence of oxygen and water vapor , significantly improved catalyst deactivation Mo/ZSM-5 coke problem , extending the life of the catalyst.Masking tape

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