Patent ID: 9079121
Filing Date: 2015-07-14
Classification: B01D,Y10T

Abstract:
1. A distillation column, comprising: a vertically extending distillation housing; and a plurality of tray assemblies, at least one of which includes a horizontally extending tray panel and a downcomer panel assembly that defines a downcomer having, in a downward direction, an upper region of decreasing cross-sectional area, and a lower region of substantially constant cross-sectional area, wherein the downcomer panel assembly comprises: wherein each of the left and right angled bolt bars comprise a triangular side portion comprising an inner edge attached to the downcomer top panel and an outer edge attached to an inner wall of the distillation housing such that the triangular side portion fills in a gap between the inner wall of the distillation housing and each of the left and right side edges of the downcomer top panel, the inner edge of the triangular side portion is parallel to an outer edge of the downcomer top panel; the outer edge of the triangular side portion is displaced decreasingly further from the inner edge of the triangular side portion in a downward direction; and the distillation housing, the downcomer top panel, and the left and right angled bolt bars define the upper region of the downcomer.