Batch solid sodium borohydride hydrolysis for hydrogen generation : the role of reactor bottom shape

Ferreira, M. J. F.; Rangel, C. M.; Pinto, A. M. F. R.

http://hdl.handle.net/10400.9/1477

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Authors

Ferreira, M. J. F.

Rangel, C. M.

Pinto, A. M. F. R.

Abstract(s)

The present study reports original experimental work on generation of hydrogen, by hydrolysis of solid sodium borohydride with stoichiometric amount of distilled water (H2O/NaBH4: 2, 2.84 and 3 mol/mol), in the presence of a powder unsupported Ni-Ru based catalyst, reused about 320 times. The experiments, performed in two batch reactors with equal internal volume but with different bottom shapes (flat and conical), revealed - for the conical bottom shape with any excess of water - 8.1 H2 wt% and 92 kg H2/m3 (materials-only basis), and a H2 rate of 87.4 L(H2) min-1g-1 catalyst. The role of reactor bottom geometry on the solid NaBH4 hydrolysis - with any excess of water - is, as the authors are aware, for the first time here referred.

URI

http://hdl.handle.net/10400.9/1477

Citation

M. J. F. Ferreira; C. M. Rangel; A. M. F. R. Pinto. Batch solid sodium borohydride hydrolysis for hydrogen generation : the role of reactor bottom shape. In: 4th World Hydrogen Technologies Convention, Glasgow, U.K., 2011, 2p.