It is important to note that the chemical environment of bulk phase tank contents may be different than the conditions at the fuel-water-tank interface where biofilm formation likely occurs.
At the fuel-water-tank interface, all of the necessities of life are present: a carbon source, water, an electron donor (the hydrocarbon/ethanol blend and/or metals in the tank), and an electron acceptor such as O2 or previously oxidized metal (e.g., rusted steel).
For solids loadings greater than 10 weight percent in a stirred tank, a clear interface may form towards the top of the vessel at what is known as the cloud height.
An improved kinetic model of catalytic oxidation of tetravalent sulphur in aqueous solutions has been suggested, based on oxygen absorption experiments carried out in a stirred tank with a plane interface.
The interaction between these two models is implemented by the data exchange through the interface between the tank wall and nearby water in the tank.
The stratified layer parameters, the tank pressure rise, and the interface phase change are studied respectively.
Interfaces such as tank outline shape, bulk capacity, maximum expected operating pressure (MEOP), thermal insulation, pipe arrangement, and measurement of data are also designed to be ready onboard.
Therefore, mass transfer measurements were carried out in a 2D slurry bubble column reactor (0.015×0.30×2.00 m3), a stirred tank reactor with a flat gas liquid interface, and in a stirred tank reactor with a gas inducing impeller.
The absorption of sulfur dioxide and carbon dioxide into aqueous calcium hydroxide slurries were performed using a stirred tank with a plane gas-liquid interface at 308 K.
Theoretical enhancement factors compared well with the experimental data using a stirred tank absorber with a plane gas liquid interface at 25°C.
Theoretical enhancement factors were compared with experimental data for the absorption using a stirred tank absorber with a plane gas-liquid interface at 25°C.
