التفاصيل البيبلوغرافية
| العنوان: |
HZSM-5 synthesized from montmorillonite activated by different method as an efficient solid acid for steam reforming of dimethyl ether. |
| المؤلفون: |
Zhao, Yong-Hua1 (AUTHOR) lgdzyh@163.com, Zhang, Jia-Kang1 (AUTHOR) 1173575802@qq.com, Zhang, Sen-Han1 (AUTHOR) 157898611@qq.com, Feng, Xiao-Qian1 (AUTHOR) Fengxq@lnut.edu.cn, Wang, Huan1 (AUTHOR) 13240178@qq.com, Zhang, Qi-Jian1 (AUTHOR) zhangqijian@tsinghua.org.cn |
| المصدر: |
Research on Chemical Intermediates. Feb2025, Vol. 51 Issue 2, p595-610. 16p. |
| مصطلحات موضوعية: |
*PHYSICAL & theoretical chemistry, *STEAM reforming, *HYDROGEN production, *COPPER, *X-ray diffraction, *MONTMORILLONITE |
| مستخلص: |
A series of HZSM-5 with varying structures and acidities were successfully synthesized from montmorillonite activated via thermally activated, alkali-thermally activated, sub-molten salt-activated, and acid-activated methods. Meanwhile, HZSM-5 used as solid acid was physically mixed with commercial Cu/ZnO/Al2O3 catalyst to obtain a bifunctional catalyst for steam reforming of dimethyl ether (SRD) reaction. The samples were characterized by means of XRD, FTIR, SEM, N2 adsorption desorption, and NH3-TPD. The results demonstrated that the structure and acidity of HZSM-5 could be effectively regulated by montmorillonite activation method, and then influencing the SRD reaction performance of corresponding bifunctional catalysts. Among them, the bifunctional catalyst composed of HZSM-5 synthesized via using montmorillonite activated by sub-molten salt method and Cu/ZnO/Al₂O₃ exhibited the most favorable SRD performance, and the initial dimethyl ether conversion and H2 yield reached about 100% and 91% under the conditions of reaction temperature 300 °C, pressure 0.1 MPa, gas hourly space velocity 5000 mL/(g·h), respectively, furthermore, they remained almost constant throughout the reaction period, indicating that the catalyst exhibited good stability. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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