Study of the activity of a novel green catalyst used in the production of hydrogen from methanolysis of sodium borohydride
Abstract
Biomass is an important energy source because it is easily accessible, contributes to the protection of the environment, and can be easily used in industry. Biomass resources can be classified as plants, vegetable and animal wastes, urban and industrial wastes. Highly active catalysts can be prepared by physical and chemical activation methods. Here, Microcystis aeruginosa was used as a biomass source and a metal-free catalyst was synthesized. The production conditions were determined by burning the microsistis modified with 3M H3PO4 at different temperatures (100, 200, 300 and 400 oC) and at different times (30, 45, 60 and 90 minutes). Parameters such as NaBH4 amount, catalyst amount and temperature of the synthesized MA- H3PO4 catalyst that affect methanolization were investigated. In the kinetic calculations, the reaction order was found as n 0.18, activation energy 19.014 kj / mol and initial rate 4998.7 ml H2min-1gcat-1. The reusability of the MA-H3PO4 catalyst was tested 5 times and its stability determined.
Keywords
Metal-free catalyst, Microcystis aeruginosa, Methanolysis, NaBH4
References
- Milano J., Ong H.C., Masjuki H.H., Chong W.T., Lam M.K., Loh P.K., Vellayan V., “Microalgae biofuels as an alternative to fossil fuel for power generation”, Renewable and Sustainable Energy Reviews, 58, (2016), 180-197.
- Suganya T., Varman M., Masjuki H.H., Renganathan, S., “Macroalgae and microalgae as a potential source for commercial applications along with biofuels production: a biorefinery approach”, Renewable and Sustainable Energy Reviews, 55, (2016), 909-941.
- Hosseini S. E., Wahid, M.A., “Hydrogen production from renewable and sustainable energy resources: promising green energy carrier for clean development”, Renewable and Sustainable Energy Reviews, 57, (2016), 850-866.
- Kaya M., “Evaluating organic waste sources (spent coffee ground) as metal-free catalyst for hydrogen generation by the methanolysis of sodium borohydride”, International Journal of Hydrogen Energy, 45(23), (2020), 12743-12754.
- Kaya M., “Production of metal-free catalyst from defatted spent coffee ground for hydrogen generation by sodium borohyride methanolysis”, International journal of hydrogen energy, 45(23), (2020), 12731-12742.
- Mustafa K.A.Y.A., Bekirogullari, M., “Investigation of hydrogen production from sodium borohydride methanolysis in the presence of Al2O3/spirulina platensis supported Co catalyst”, Avrupa Bilim ve Teknoloji Dergisi, (16), (2019), 69-76.
- Bilici M.S.U. “Energy Carrier Hydrogen”, Hydrogen Carrier Sodium Borohydride, Mining Bulletin, (67), (2004).
- Hansu T.A., Sahin O., Caglar A., Kivrak H.,” A remarkable Mo doped Ru catalyst for hydrogen generation from sodium borohydride: the effect of Mo addition and estimation of kinetic parameters”, Reaction Kinetics, Mechanisms and Catalysis, 131(2), (2020), 661-676.
- Avci Hansu T., Sahin O., Çağlar A., Demir Kivrak, H.,” Untangling the cobalt promotion role for ruthenium in sodium borohydride dehydrogenation with multiwalled carbon nanotube‐supported binary ruthenium cobalt catalyst”, International Journal of Energy Research, 45(4), (2021), 6054-6066.
- Hansu F., “The effect of dielectric barrier discharge cold plasmas on the electrochemical activity of Co–Cr–B based catalysts”, Journal of the Energy Institute, 88(3), (2015), 266-274.