| abstract |
The present invention is directed to a method and apparatus for conveying a product. In accordance with the method aspects of the present invention, the steps comprise providing a flow channel (61) having internal surfaces (56, 60) and introducing the product into the channel and causing the product to move through the channel for flow as a first phase through the channel. Pursuant to a feature of the present invention, a step of simultaneously applying a film of fluid over the internal surfaces (56, 60) is carrried out during movement of the product through the channel (61) to provide a second phase to surround the first phase and separate the first phase from the internal surfaces during conveyance of the product through the channel so that the first phase moves as a plug of material through the channel. |