“…Notably, the observed value of the Reynolds number order (0.93) is significantly higher than that for other conventional types of the packed catalyst beds (0.47-0.85 for granular beds [35], 0.43 for foam catalysts [36], 0.425 for catalytic gauzes [37], 0.45 for honeycombs [38], 0.21-0.5 for wire mesh structures [37,[39][40][41], 0.72 for metal fiber filters [42] etc.). This phenomenon may be explained by flexibility of the GFCs.…”