Modelling and optimization of a Gas-to-Liquid plant
This thesis investigates the operational performance and optimization of a
Gas-to-Liquid plant based on autothermal reforming (ATR) and a multi
tubular fixed bed (MTFB) reactor together with a cobalt catalyst. This is
achieved through simulation of the process in Unisim Design R400. The
simulations were based on a feed designed for a 17000 bbl/d train and does
not incorporate the upgrading unit. The work is divided in three main sections;
parameter study, optimization on syncrude flow, carbon- and thermal
efficiency and optimization with consideration to economics including heat
integration through pinch analysis. The optimized process was found to
produce 19940 bbl/d of syncrude with a carbon efficiency of 82.41% and thermal
efficiency of 65.93%, when not taking economics into consideration.
The inclusion of economics changed the operational optimum to a syncrude
production of 18620 bbl/d and efficiencies of 77.25% and 61.77% respectively.
Ultimately a production cost of 16.10 USD/bbl and revenue of 59.89 USD/bbl was
obtained. With current crude oil price at 98.90 USD/bbl it indicates a good
economical environment for the Gas-to-Liquid process.
Place, publisher, year, edition, pages
Institutt for kjemisk prosessteknologi , 2013. , 217 p.
IdentifiersURN: urn:nbn:no:ntnu:diva-22287Local ID: ntnudaim:9284OAI: oai:DiVA.org:ntnu-22287DiVA: diva2:648742
Hillestad, Magne, ProfessorKlimantos, Paris