On-site hydrogen-rich gas production from diesel: A comprehensive study on catalyst development with nickel and diverse metal oxides (MgO, La<sub>2</sub>O<sub>3</sub>, CeO<sub>2</sub>, SiO<sub>2</sub>) supported on alumina

Sahingoz N. C., Talu K., OKTAR N., DOĞU T., Pamuk I.

APPLIED CATALYSIS A-GENERAL, cilt.687, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 687
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.apcata.2024.119940
  • Dergi Adı: APPLIED CATALYSIS A-GENERAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Gazi Üniversitesi Adresli: Evet

Özet

The study aimed to investigate the impact of nickel-incorporating diverse metal oxides (MgO, La2O3, CeO2, SiO2) supported on alumina on the Diesel steam reforming reaction. Catalytic activity tests were performed within a reaction period of 6 h at 800 degrees C and atmospheric pressure. The amount of catalyst is 30 gr in each experiment corresponding to a LHSV value of 0.2 hr(-1). The tests proved that the performances of Ni-containing La2O3 and CeO2-supported catalysts were highly stable and active in steam reforming of Diesel, giving complete conversion. The incorporation of CeO2 (20 % wt) into Al2O3 support resulted in a significant reduction in the amount of coke formation from 0.85 % to 0.26 %. In order to investigate catalyst stability, time-on stream tests extending to 6 days, totaling 36 hours were performed using 5Ni@10La(2)O(3)-Al2O3. As a result of the long-term stability test, no deactivation has been observed under the test conditions despite very few amounts of carbon (1.33 wt%) formed. When comparing the short-term and long-term tests, similar syn-gas production results were observed, along with approximately the same amount of carbon formation.