Gasification Comparison between Plasma and Entrained Flow: Analysis of the Power Plant

Abstract

In this work, the plasma gasification is assessed and compared to the conventional entrained flow technology in an equilibrium-based power plant gasification simulation model. The two power plant models are developed within Aspen Plus environment representing an integrated plasma- and entrained flow-gasification combined cycles (IPGCC, and IGCC). They are fed with abundant feedstock consists of MSW and Petroleum Hydrocarbon Waste sludge (PHW). These are initially analyzed according to their proximate and ultimate analyses. Thereafter, using Abu Dhabi city with a population of nearly 2,000,000 residents the total amount of generated waste is estimated. Next, different parametric studies are carried out under variable oxidizer fraction and MSW-PHW co-gasification mixture. It was found, at a daily feed of 1,338 tons consisting of 90% MSW and 10% PHW, the total electrical power generation is 81 MW using IPGCC plant and 100.2 MW using IGCC. The corresponding overall efficiencies are 33.6% for the former and 41.4% for the later.