Fixed-bed tubular reactor comprising a separative membrane

A fixed-bed tubular reactor which extends,

• along a longitudinal axis, between a first end and a second end, the reactor comprising a catalytic powder bed confined in an annular space situated between an outer wall of a hollow tube and an inner wall of a hollow insert disposed coaxially in the hollow tube,
• the hollow insert comprising at least one distribution chamber and at least one collection chamber, separated from each other by at least one first separative wall,
• the at least one distribution chamber and the at least one collection chamber comprising a gas intake opening at the first end [(11)] and a gas discharge opening at the second end respectively,
• wherein the inner wall of the hollow insert is covered with a separative structure (160, 170) comprising at least one permselective membrane for partially removing at least one reaction product, so that the annular space is delimited by the outer wall and the permselective membrane, and
• wherein the reactor further comprises at least one supply chamber separated from the at least one distribution chamber and from the at least one collection chamber by at least one first separative wall, the at least one supply chamber comprising an inlet port for at least one supply fluid, consisting of a flushing fluid for discharging the at least one reaction product, distinct from the gases circulating in the at least one distribution chamber and in the at least one collection chamber, at the first end, and an outlet port for the at least one supply fluid, at the second end.