Reforming of olive mill wastewater through a Pd-membrane reactor

The hydrogen recovery was positively affected by the pressure; its highest values (over 90%) were attained at 500 kPa, while the maximum hydrogen yield was measured at 300 kPa with a space velocity of 5.56 × 10−3 mol h−1 gcat−1. Up to 2 kg of permeated hydrogen was produced per ton of olive mill wastewater.