Vapor/liquid contact column structure

Abstract From the Canadian patent

The disclosure is directed to a vapor-and-liquid contact structure for distillation, fractioning rectification, absorption, and the refining in a, column, of various liquid materials such as petroleum chemical, and alcohol solutions. Provision is made for the inclusion of vertically-spaced bubble plate chambers having respective liquid and vapor contact devices, to accommodate contact of counter-current flows of reflux liquid and vapors. A downcomer means including slanted ramps, is disposed outside of the vapor conduit-defining interior, and defines an elongate downcomer structure for liquid flow. Accordingly descending reflux liquid flow is kept outside of primary vapor flow, with …