Dynamic Modelling of CO2-removal units for an IGCC power plant

Abstract

This article describes dynamic models of the carbon dioxide (CO 2)-removal units which are coupled with conventional models to form a complete model of an IGCC power plant with CO 2 capture. Therefore some components of the Modelica_Fluid 1.0 library and packages of the Modelica.Media library from Modelica 3.0 were used. Not yet available components were developed. The results obtained with Dymola 7.1 were compared with steady state simulations calculated with other tools (ChemCAD and Aspen Plus) and a very good agreement was found.

Dynamic modelling and validation of pre-combustion CO2 absorption based on a pilot plant at the Buggenum IGCC power station

“…Heil et al developed a dynamic model for a pre-combustion CO 2 removal unit utilizing methanol as solvent in an equilibrium-based absorber column model. The thermophysical properties of the fluid mixtures involved in the process are modelled with a simplistic approach (Heil et al, 2009).…”

Simulation of Synthesis Gas Production from Steam Oxygen Gasification of Colombian Coal Using Aspen Plus®

“…A selective H 2 S removal configuration was used in the simulation. In this configuration, the raw syngas feeds up the main absorber in which CH 3 OH absorbs most of the impurities produced in gasification process such as CO 2 , H 2 S, COS, HCN and NH 3 [29]. Thereafter, the solvent passes through a regeneration process, where these components are desorbed by reducing the pressure, stripping and/or boiling up the solvent.…”

Dynamic process simulations and control of a lignite/waste to Fischer Tropsch liquids plant

“…While there is a decent amount of literature dealing with the dynamic behavior of each sub-unit separately including valuable studies that have shed light in the non-steady operation of ASU [13][14][15], gasification [16][17][18][19][20][21], acid gas removal [22][23][24] and FT synthesis [25][26][27], the plant-wide control of such an integrated configuration that investigates the dynamic interaction among the sub-units during feedstock/load variations has not been attempted yet. One of the most common software platforms that are employed to perform the dynamic simulations of such chemical processes is Aspen Plus Dynamics (APD).…”