START UP OF RAPID PYROLYSIS UNIT

摘要

PROBLEM TO BE SOLVED: To provide a method for solving the clogging problems, resulting from coal for gasification used during a start-up period of pyrolysis process and/or carbonaceous stock coming into contact with hot char formed, which generates tar from the coal and/or carbonaceous stock to agglomerate the char into coarser particles. ;SOLUTION: This method comprises covering coal for gasification used during a start-up period of pyrolysis process and/or carbonaceous stock with seed char at a place, e.g. supply section 9, where the coal and/or carbonaceous stock come into contact with hot char formed. The char brings about the insulation effect to prevent generation of tar from the coal and/or carbonaceous stock, and allows the gasification process to continue, because it contains carbon.;COPYRIGHT: (C)2000,JPO