PROCESS FOR FEEDING PARTICULATE MATERIAL TO A FLUIDIZED BED REACTOR

摘要

PURPOSE: A process and apparatus for feeding powders such as fine, cohesive, or powdery particulate materials from a low pressure system to a high pressure system, are provided. CONSTITUTION: A process for feeding a particulate material from a low pressure system to a high pressure system comprises: (i) introducing the particulate material to one or more pressurizing vessels wherein each of the pressurizing vessels has a bottom hopper opening to vessel diameter ratio equal to or larger than 0.2:1; (ii) pressurizing the particulate material in one or more of the pressurizing vessels to a pressure equal to or greater than that of the high pressure system with a pressurization gas introduced from above the top surface of the particulate material to form a compressed mass of particulate material; and (iii) introducing the compressed mass of particulate material from one or more of the pressurizing vessels into the high pressure system.