Thanita Nittaya

Former MASc Student

Image of Thanita NIttaya
I completed the bachelor degree in Chemical Engineering in 2007, from King Mongkut University of Technology North Bangkok. Also, I have four year experience in upstream oil and gas industry prior to pursuing the graduate study in University of Waterloo. In my MASc research work, a mechanistic dynamic model of a pilot plant of a post-combustion CO2 capture plant using the monoethanolamine (MEA) absorption processes was developed. The proposed dynamic model was then used to design promising decentralized control schemes for this pilot plant. The performance evaluation of those control structures was assessed under multiple scenarios, e.g. changes in flue gas composition, set point tracking, valve stiction. Furthermore, a step-by-step method to scale-up an MEA absorption plant for CO2 capture from a 750 MW supercritical coal-fired power plants was developed in my research. The mechanistic model of an industrial-scale CO2 capture plant including a proposed control structure was evaluated using different scenarios. The plant has been shown to handle different disturbances and offers prompt responses. In addition, poor wetting in the strippers can be avoided by the implementation of suitable operating policies (process scheduling) in the plant.

Thesis: Dynamic Modelling and Control of MEA