Valorization of Waste in a Gasification Plant for Clean Power Production

摘要

The purpose of this work is to perform a feasibility analysis of co-gasification using waste materials, petcoke being specifically considered here. From a Life Cycle Assessment (LCA) point of view co-gasification of coal with solid residues is seen beneficial because of transforming a residue into a raw material and further into power. The base work of this paper is a structured and validated conceptual model of an Integrated Gasification Combined Cycle (IGCC) power plant. It comprises steady state models of a Pressurized Entrained Flow (PRENFLO) gasifier, following gas cleaning operations, a Heat Recovery Steam Generator (HRSG) and Combined Cycle (CC) unit operations. The model has been developed using Aspen Hysys and Matlab, which is mainly used for Artificial Neural Network (ANN) training and parameters estimation for electrolytes models implemented in Aspen Plus. Predicted results of clean gas composition and generated power present a good agreement with industrial data.