Dynamic model for a commercial-scale CO2 capture plant (Nittaya et al., Ind Eng Chem Res, 2014)
A mechanistic-based model that describes the transient behaviour of a large-scale CO2 capture plant has been developed in our group. The CO2 plant layout shown below was developed using process heuristics and sensitivity studies on the allowed capacity of absorption and desorption in the scrubbing and regeneration towers. The proposed model was validated using the data available in the literature and was tested under different scenarios. In addition, a basic decentralized control scheme was proposed to maintain the dynamic operability of this process in the presence of partial and sudden changes in the load, i.e. the flue gas flowrate.
A reduced-order model (ROM) for an advanced gasification system (Sahraei et al., Fuel, 2015)
The aim of this research is to develop a comprehensive ROM for a short residence-time gasification unit that employs petcoke as the feedstock. The proposed ROM is based on a reactor network model (panel a), which was designed based on the streamlines produced from computational fluid dynamic simulations (CFD) of the system under analysis (panel b). The ROM was validated using data reported from CFD simulations and is shown to capture the expected stationary behaviour for this process (figure c).