SavedAdd your journal

Journals / Konya Mühendislik Bilimleri Dergisi / 2021 / Cilt: 9

MESOPOROUS ALUMINOSILICATE SUPPORTED CATALYSTS IN ALTERNATIVE FUEL HYDROGEN PRODUCTION

Alternatif Yakıt Hidrojen Üretiminde Mezogözenekli Alüminosilikat Destekli Katalizörler

Ahmat Ibrahim SALEH
Emine KAYA EKİNCİ
Birce PEKMEZCİ
Nuray OKTAR
Pages
107–123
Publication Date
2021-12-30
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Activity test results showed that catalyst composition has profound effects on product distribution.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In the present study, Ni-containing mesoporous aluminosilicate (Al2(SiO2)3) supported catalysts, which are resistant to carbon formation, were developed for hydrogen production from acetic acid.
📊
Key Findings & Data:Commercial aluminosilicate (Al2(SiO2)3) was used as catalyst support.
💡
Conclusion & Impact:Activity test results showed that catalyst composition has profound effects on product distribution.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Nikel · Ticari alüminosilikat · Asetik asit

Abstract

In the present study, Ni-containing mesoporous aluminosilicate (Al2(SiO2)3) supported catalysts, which are resistant to carbon formation, were developed for hydrogen production from acetic acid. Commercial aluminosilicate (Al2(SiO2)3) was used as catalyst support. Furthermore, to improve the catalyst stability, Mg, La, Ce, Ca, Ru metals, and Ni (5% by mass) were incorporated by the wet impregnation method into the catalyst supports’ structure. The synthesized catalysts were characterized to define their physical and chemical properties. N2 adsorption-desorption results reveal that the resulting isotherm behavior of all the prepared catalysts is consistent with type IV isotherm with plate-like wall structures. The catalytic activity test of the prepared catalysts was investigated at a reaction temperature of 750 C and a feed molar ratio of 1/2.5 (AA/H2O) in a packed bed continuous reactor system. Activity test results showed that catalyst composition has profound effects on product distribution. Hydrogen-rich syngas was produced over 5Ni-3Ru@Al2(SiO2)3 and 5Ni-3CeO2@Al2(SiO2)3 (about % 44 and % 46, respectively) catalysts. However, the addition of MgO over the 5Ni@Al2(SiO2)3 catalyst strongly influenced the selectivity of hydrogen. Syngas, which contains an equimolar amount of H2, and CO is a quite important feedstock for the Fischer-Tropsch process (about 35% each), was obtained with the 5Ni-3MgO@Al2(SiO2)3 catalyst.

Özet

Bu çalışma kapsamında asetik asitten hidrojen üretimi için karbon oluşumuna karşı dirençli Ni içerikli mezogözenekli alüminosilikat (Al2(SiO2)3) destekli katalizörler geliştirilmiştir. Mezogözenekli ticari alüminosilikat (Al2(SiO2)3) katalizör destek malzemesi olarak kullanılmıştır. Ayrıca, ticari alüminosilikat destek malzemesinin yapısına hidrojen seçiciliğinin arttırılması için nikelin yanısıra Mg, La, Ce, Ca ve Ru metalleri (kütlece % 5) ıslak emdirme yöntemi ile yüklenmiştir. Sentezlenen katalizörlerin bazı fiziksel ve kimyasal özelliklerini belirlenmesi için karakterizasyon analizleri gerçekleştirilmiştir. Mezogözenekli Al2(SiO2)3 malzemelerinin N2 adsorpsiyon-desorpsiyon analizi sonucu elde edilen izotermleri Tip IV izotermi ile uyumlu olup malzemelerin levha gibi yapıda olduğu saptanmıştır. Hazırlanan katalizörlerin katalitik aktivite testleri sürekli akışlı dolgulu reaktör sisteminde 750 C reaksiyon sıcaklığında ve 1/2.5 (AA/H2O) besleme molar oranında yürütülmüştür. Aktivite test çalışmaları sonucunda katalizör içeriğinin, ürün dağılımını önemli ölçüde etkilediği görülmüştür. 5Ni-3Ru@Al2(SiO2)3 ve 5Ni-3CeO2@Al2(SiO2)3 katalizörleri ile hidrojen içeriği yüksek sentez gazı (sırasıyla yaklaşık % 44 ve % 46) elde edilmiştir. Ayrıca 5Ni@Al2(SiO2)3 katalizörüne MgO ilavesi hidrojen seçiciliğini oldukça etkilemiştir. 5Ni-3MgO@Al2(SiO2)3 katalizörü ile eşit molarda H2 ile CO içeren ve Fischer-Tropsch prosesi için önemli bir ham madde olan sentez gazı elde edilmiştir.

🔖

Cite This Article

SALEH, A. I., EKİNCİ, E. K., PEKMEZCİ, B., OKTAR, N. (2021). MESOPOROUS ALUMINOSILICATE SUPPORTED CATALYSTS IN ALTERNATIVE FUEL HYDROGEN PRODUCTION. Konya Mühendislik Bilimleri Dergisi, Cilt: 9, 107–123. https://ajindex.com/articles/786799

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (12)

  1. Arbag, H. 2018, “Effect of impregnation sequence of Mg on performance of mesoporous alumina supported Ni catalyst in dry reforming of methane”, International Journal of Hydrogen Energy, 43, 6561-6574.
  2. An, L., Dong, C., Yang, Y., Zhang, J., & He, L. 2011, “The influence of Ni loading on coke formation in steam reforming of acetic acid. Renewable Energy, 36, 930-935.
  3. Basile, A., Gallucci, F., Iulianelli, A., Borgognoni, F., Tosti, S. 2008, “Acetic acid steam reforming in a Pd–Ag membrane reactor: the effect of the catalytic bed pattern”, Journal of Membrane Science, 311, 46-52.
  4. Basagiannis, A. C., Verykios, X. E. 2007, “Catalytic steam reforming of acetic acid for hydrogen production”, International journal of hydrogen energy, 32, 3343-3355.
  5. Cakiryilmaz, N., Arbag, H., Oktar, N., Dogu, G., Dogu, T. 2018, “Effect of W incorporation on the product distribution in steam reforming of bio-oil derived acetic acid over Ni based Zr-SBA-15 catalyst”, International Journal of Hydrogen Energy, 43, 3629-3642.
  6. Chen, B., Lin, J., Chen, X., Zheng, Y., Zhang, H., Huang, F.,. Zheng, Y. 2020, “Controllable synthesis of mesoporous alumina as support for palladium catalysts and reconstruction of active sites during methane combustion”, International Journal of Hydrogen Energy, 45, 15142-15156.
  7. Chen, G., Tao, J., Liu, C., Yan, B., Li, W., & Li, X. 2017, “Hydrogen production via acetic acid steam reforming: a critical review on catalysts”, Renewable and Sustainable Energy Reviews, 79, 1091-1098.
  8. Chen, J., Wang, M., Wang, S., & Li, X. 2018, “Hydrogen production via steam reforming of acetic acid over biochar-supported nickel catalysts”, International Journal of Hydrogen Energy, 43, 18160-18168.
  9. Choi, I.H., Hwang, K.R., Lee, K.Y. and Lee, I.G., 2019, “Catalytic steam reforming of biomass-derived acetic acid over modified Ni/γ-Al2O3 for sustainable hydrogen production”, International Journal of Hydrogen Energy, 44, 180-190.
  10. Chong, C.C., Teh, L.P. and Setiabudi, H.D., 2019, “Syngas production via CO2 reforming of CH4 over Ni-based SBA-15: Promotional effect of promoters (Ce, Mg, and Zr)”, Materials Today Energy, 12, 408-417.
  11. Fauteux-Lefebvre, C., Abatzoglou, N., Blanchard, J. and Gitzhofer, F., 2010, “Steam reforming of liquid hydrocarbons over a nickel–alumina spinel catalyst”, Journal of Power Sources, 195, 3275-3283.
  12. Fu, P., Zhang, A., Luo, S., Yi, W., Hu, S. and Zhang, Y., 2019, “Catalytic steam reforming of biomass-derived acetic acid over two supported Ni catalysts for hydro