Patent ID: 6676731
Filing Date: 2004-01-13
Classification: B01J,B65G,F27D

Abstract:
A process for transferring granular solids into a pressure vessel at a pressure of at least 2 bar which comprises the steps of:a) delivering said solids to a first container under atmospheric pressure; b) feeding solids from said first container through a first column to a lower outlet located above a second container at a variable pressure; c) delivering said solids from said second container through a second column to said pressure vessel below said second container at an outlet from said second column; d) selectively closing said outlets with respective movable shutters located 20 to 400 mm below the respective outlets; e) providing the shutters at the bottoms of respective chambers at least partly filled with said solids whereby each shutter carries a bed of said solids and said solids fill the respective said columns each to a height of at least 1 m, each of said shutters being free from gas-tight engagement with the respective chamber; and f) supplying a sealing gas under pressure to the respective chamber from an exterior thereof and into the respective column of said granular solids.