Apparatus and method for heterogeneous catalytic reactions

摘要

An apparatus for use in heterogeneous catalytic reactions comprising a column reactor comprising a plurality of trays mounted one above another, each adapted to hold a predetermined liquid volume and a charge of particles of a solid catalyst thereon; means for introducing a liquid phase reactant above the uppermost tray; means for introducing a vapor phase reactant below the lowermost tray; means for removing a liquid phase post-reaction stream from below the lowermost tray; means for removing a vapor phase post-reaction stream from above the uppermost tray; vapor upcomer means associated with each tray adapted to allow vapor to enter that tray from below; undertow means associated with each tray adapted to remove liquid from that tray and the column reactor before being introduced into the column reactor at a lower tray; means for temporarily directing said liquid removed from a tray to bypass at least one lower tray and be reintroduced to the column reactor at a tray located below said at least one bypassed tray; means for removing the liquid and catalyst from said at least one bypassed tray: and means for replacing a liquid and catalyst inventory on said at least one bypassed tray.

主权项

1. An apparatus for use in heterogeneous catalytic reactions comprising:
(a) a column reactor comprising a plurality of trays mounted one above another, each adapted to hold a predetermined liquid volume and a charge of particles of a solid catalyst thereon; (b) a first inlet for introducing a liquid phase reactant above the uppermost tray; (c) a second inlet for introducing a vapour phase reactant below the lowermost tray; (d) a first outlet for removing a liquid phase post-reaction stream from below the lowermost tray; (e) a second outlet for removing a vapour phase post-reaction stream from above the uppermost tray; (f) vapour upcomer means associated with each tray adapted to allow vapour to enter that tray from below; (g) underflow means comprising an outlet positioned below the liquid level of each tray to allow the flow of liquid from below the top surface of said liquid, the underflow means being associated with each tray and adapted to remove liquid from that tray and the column reactor before being introduced into the column reactor at a lower tray; (h) a bypass for temporarily directing said liquid removed from a tray to bypass at least one lower tray and be reintroduced to the column reactor at a tray located below said at least one bypassed tray; (i) a third outlet for removing the liquid and catalyst from said at least one bypassed tray; and (j) means for replacing a liquid and catalyst inventory on said at least one bypassed tray.