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Nowadays, natural gas is the main source for producing industrially hydrogen via steam reforming reaction, but the exploitation of bio-sources (bio-ethanol, etc.) could constitute an alternative and interesting way for producing hydrogen, also taking into account the respect of the strict environmental concerns.Steam reforming reaction of bio-sources could be useful to produce a hydrogen-rich stream.Nevertheless, when this process is carried out by means of conventional fixed bed reactors, hydrogen and other by-products are produced, needing to be separated and purified by means of further processes having in mind to reach a pure hydrogen stream.The exploitation of dense and supported Pd-based membranes housed in membrane reformer modules could represent an alternative solution to the conventional fixed bed reformers.In particular, both dense and supported tubular Pd-based membranes may combine the hydrogen selective behavior of the material with the economic benefit represented by the lower number of devices for hydrogen production and purification.The scope of this work is to point out the potentiality of the inorganic membrane reactors technology for hydrogen production via reforming reactions of renewable sources such as bio-ethanol, methanol,glycerol, acetic acid and so on, paying particular attention to the comparison within dense and supported Pd-based membranes.Moreover, the experimental investigation takes also into account the effect of contaminants and the presence of coke on both catalyst and hydrogen permeating behavior of the membranes..Thus, a discussion on the membrane reactor performances in terms conversion, H2-recovery and H2-permeate purity, H2 yield and product selectivity is proposed and a short comparison with other literature data is given, reviewing the main benefits and drawbacks of the membrane reactor technology with respect to the conventional systems.