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Supercritical Water Gasification of glycerol is carried out on a continuous tubular reactor at 25 MPa and 610 °C. A design of experiments is performed at three levels of glycerol concentration (2.5; 5; and 10%) and three levels of inflow rate (125; 250; and 375 mL/min). The process outputs are the molar production of H2; CH4; CO2; CO; and C2H6. The influence of Stainless Steel 316 and Inconel-625 as reactor materials is compared. A compartment model is implemented considering the system as a heat exchanger in series with a wall reactor. Heat transfer influence on reactivity is successfully captured. The results are useful and accurate in describing global stoichiometry. H2, CH4, and CO2 productivity are fairly predicted. The catalytic effect of Inconel-625 manifests from the CO2 to CO ratio when compared with Stainless Steel 316. Inconel-625 is 50% more productive in terms of C2 hydrocarbons and 40% more active towards CH4 production, which is detrimental in 50% of the H2 yield.
|Journal||International Journal of Heat and Mass Transfer|
|Publication status||Published - Feb 2022|
|MoE publication type||A1 Journal article-refereed|
- Supercritical Water Gasification
- Compartment model