Polymeric Gas-Separation Membranes for Petroleum Refining

Table 7

Hydrogen permeability and selectivity of various membrane materials.

Material	(Barrer)				T (°C)	P (bar)	Ref.
Polyimide (Matrimid 5218)	2.5	7	11	17	30	2	[81, 109]
Polysulfone	14	56	40–56	56	35	—	[1, 110]
Polyethylene	17	2.2	—	4.1	30	2	[111]
Polystyrene	24	30	—	40	30	2	[111]
Cellulose acetate	24	67	30–40	73	25	—	[1]
Polyetherimide	26	51	39	71	23	0.3–0.8	[112]
Polyimide (BPDA-based)	50	125	50	83	60	—	[1]
Dimethyl silicone rubber	65	0.8	0.7	2.2	25	1	[61]
Poly(2,6-dimethylphenylene oxide) (PPO)	80	30	—	31	22	—	[113]
Polydimethylsiloxane (PDMS)	1500	1	—	2.5	35	1–15	[92]