Performance of nanostructure palladium composite membrane in H2 purification
- سال انتشار: 1393
- محل انتشار: پنجمین کنگره بین المللی نانو و فناوری نانو (ICNN2014)
- کد COI اختصاصی: ICNN05_534
- زبان مقاله: انگلیسی
- تعداد مشاهده: 558
نویسندگان
Department of Chemical Engineering, Sahand University of Technology, Tabriz, Iran- Nanostructure Materials Research Center, Sahand University of Technology, Tabriz, Iran
Department of Chemical Engineering, Sahand University of Technology, Tabriz, Iran- Nanostructure Materials Research Center, Sahand University of Technology, Tabriz, Iran
Department of Chemical Engineering, Sahand University of Technology, Tabriz, Iran- Nanostructure Materials Research Center, Sahand University of Technology, Tabriz, Iran
Department of Chemical Engineering, Sahand University of Technology, Tabriz, Iran- Nanostructure Materials Research Center, Sahand University of Technology, Tabriz, Iran
چکیده
Nanostructure palladium composite membrane was prepared by electroless plating (ELP) method on the outersurface of tubular porous α-Al2O3 support. Surface morphology of the resulting layers was investigated by scanningelectron microscope (SEM) to characterize the as-prepared composite membrane. The results showed that the γ-Al2O3intermediate layer is nanostructure and the selective Pd layer is uniform. Subsequently, the prepared Pd membrane wasused for hydrogen permeation experiments under 0.04-0.14 MPa. The permeation results showed an increase in H2 fluxby increasing temperature. Additionally, H2 separation from binary gas mixture of H2-CO2 was investigated at 723 K.During the process, methane was found to be formed in the permeated gas, which can be due to the decomposition ofCO2 to C and O on the membrane surface and C diffusion across the membrane and reaction with the product H2 to formCH4. Finally it can be claimed that the prepared palladium membrane can purify hydrogen with high performance.کلیدواژه ها
Nanostructure palladium membrane; Electroless plating; Hydrogen flux; Methane formationاطلاعات بیشتر در مورد COI
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