Development of zeolite-based catalyst for enhancement hydrogen production from ammonia decomposition

In this study, several noble zeolites (SA-600A)-based catalysts supported with RuCl3 center dot nH(2)O and LiOH center dot H2O materials were investigated for H-2 production from NH3 decomposition. The synthetic catalysts were simultaneously prepared at different supported materials mixing ratios. The effect of initial mixing of Li and Ru on catalyst performance compared to simultaneous mixing was studied. All catalysts were tested for hydrogen production from NH3 decomposition at atmospheric pressure, temperature range of 200-670 degrees C, and gas hourly space velocity (GHSV) of 3000 h(-1). It was found that the simultaneous and initial mixing of Li and Ru has the same NH3 decomposition results. The zeolite-based catalyst was enhanced with the Ru supported material mixing ratio increase. Among all the synthetic catalysts the catalyst type of 40 g (SA-600A)/5 g RuCl3 center dot nH(2)O/3 g LiOH center dot H2O) showed the highest catalyst activity. The catalyst with a mixing ratio of 40 g (SA-600A)/5 g RuCl3 center dot nH(2)O/3 g LiOH center dot H2O) was registered the peak NH3 conversion 99.87% at lower temperature of 490 degrees C.

Automated summary

This study investigated the performance of several noble zeolite (SA-600A)-based catalysts supported with RuCl3 center dot nH(2)O and LiOH center dot H2O materials for H-2 production from NH3 decomposition. The results showed that the catalyst performance was enhanced with an increase in the Ru supported material mixing ratio.