Abstract:
An apparatus (1) for mass producing monodisperse microbubbles, comprising a microfluidic flow focusing device (2) including a dispersed phase fluid supply channel (110) having an outlet (114) that discharges into a flow focusing junction (140); a continuous phase fluid supply channel (120, 120') having an outlet (124) that discharges into the flow focusing junction; and a bubble formation channel (130) having an inlet (132) disposed at the flow focusing junction. The configuration of the flow focusing junction (140) is such that, in operation, a flow of dispersed phase fluid (12) discharging from the outlet (114) of the dispersed phase fluid supply channel (110) is engageable in co-flow by a focusing flow of continuous phase fluid discharging from the outlet of the at least one continuous phase fluid supply channel under formation of a gradually thinning jet of dispersed phase fluid that extends into the inlet of the bubble formation channel.
Abstract:
A reactor including a rotatable disc (3) having a trough (13) in an upper surface (5) thereof. Reactant (15) is supplied to the trough (13) by way of a feed (4), the disc (3) is rotated at high speed, and the reactant (15) spills out of the trough (13) so as to form a film (17) on the surface (5). As the reactant (15) traverses the surface (5) of the disc (3), it undergoes chemical or physical processes before being thrown from the periphery of the disc (3) into collector means (7).
Abstract:
A reactor including a rotatable disc (3) having first (5, 19) and second (20, 30) surfaces. Reactant (15) is supplied to the first surface (5, 19) by way of a feed (4), the disc (3) is rotated at high speed, and the reactant (15) forms a film (17) on the surface (5, 19). As the reactant (15) traverses the surface (5, 19) of the disc (3), it undergoes chemical or physical processes before being thrown from the periphery of the disc (3) into collector means (7). Means for supplying a heat transfer fluid (35) to the second surface (20, 30) are also provided so as to allow the first surface (5, 19) and hence the reactant (15) to be cooled or heated.
Abstract:
A reactor including a rotatable disc (3) having a surface (5) onto which reactant (15) is supplied by way of a feed (4). The disc (3) is rotated at high speed, and the reactant (15) spills over the surface (5) so as to form a film (17). A shear member (18, 20) is mounted close to the surface (5) so as to contact the film (17) during operation of the reactor, thereby applying a shearing force to the reactant (15) so as to aid mixing.
Abstract:
A reactor including a rotatable disc (3) having a surface (5) onto which reactant (15) is supplied by way of a feed (4). The disc (3) is rotated at high speed, and the reactant (15) spills over the surface (5) so as to form a film (17). The surface (5) is provided with features to enhance its surface area, such as a metal mesh (60), thereby helping to increase the residence time of the reactant (15) on the surface (5) and to help mixing.