Simulation and design of tar recovery and gas decarbonization process

Abstract

A multi-production system including pulverized coal molding, pyrolysis and activation is designed to solve the key problems of powder coal pyrolysis in Northern Shanxi. As the pulverized coal molding is just a physical procedure, so more attention is arranged on the preliminary design of Shenfu coal pyrolysis process. As coal tar can be converted to gasoline by hydrocracking technology, the pyrolyzation gas is cooled and coal tar is reclaimed by a spray tower, then a decarbonization unit is introduce to separate CO2 by MEA absorption. In the design process, process simulation and performance parameters optimization were carried out by Aspen Plus. At the same time, corresponding safety measures and relevant wastes treatment suggestions for the whole process were put forward.