Fluidized beds are used for several purposes, such as fluidized bed reactors (types of chemical reactors), fluid catalytic cracking, fluidized bed combustion, heat or mass transfer or interface modification, such as applying a coating onto solid items. If it is a liquid the bed expands uniformly with increased upward flow of the reactant. Learn more about fixed bed reactor at netl.doe.gov. As opposed to fixed-bed reactors, fluidized-bed reactors contain their catalyst material in a fluid state.
Parr Fluidized Bed Reactors are used extensively in the chemical process industries. The desirability of using fluidized beds is dependent on achieving good mixing between the solids and the suspending fluid. The creation and development of the fluidized bed reactor system for catalytic cracking of petroleum was a cooperative effort that involved many talented scientists and engineers. That is fluidised bed combustion in a nut shell.the sand retain the heat, the nut get fried uniformly leading to less fuel use in the frying process.
A mathematical model for fluid catalytic cracking units is developed. The model takes into account the kinetics of the cracking reactions, as well as the kinetics of coke combustion in the regenerator.
Fluidized Bed Reactors