Buscar
Mostrando ítems 1-10 de 82
The effect of binder concentration in fluidized-bed granulation: Transition between wet and melt granulation
(Elsevier, 2018-04)
According to the binder nature, fluidized-bed granulation (FBG) is usually classified as wet or melt granulation. In particular, the industrial urea granulation performed in fluidized beds, is often called “melt granulation” ...
Production of granular urea as nitrogenous fertilizer
(Nova Science Publishers, 2012)
The demand for urea is continuously growing and entwined with the need for fertilizers and animal feed additives. Industrially, urea is initially produced in liquid form as a concentrated solution. Then, it can be converted ...
Production of granular urea as nitrogen fertilizer
(Nova Science Publishers, 2014)
The demand for urea is continuously growing and entwined with the need for fertilizers and animal feed additives. Industrially, urea is initially produced in liquid form as a concentrated solution. Then, it can be converted ...
Use of polyhydroxybutyrate and ethyl cellulose for coating of urea granules
(2013)
Fertilizers contain essential nutrients for agricultural growth and development. However, most nitrogen fertilizers are substances with high solubility of ions and are very susceptible to leaching and volatilization. To ...
Modeling of an Industrial Fluidized-Bed Granulator for Urea Production
(American Chemical Society, 2007-11)
The steady-state operation of a continuous industrial fluidized-bed granulator for urea production with multiple growth and cooling beds in series is modeled. The model is based on mass and energy balances, which account ...
Analysis of optimal control problems and plant debottlenecking for urea granulation circuits
(American Chemical Society, 2011-11)
The optimal control of a complete urea granulation circuit is studied in this work. The dynamic circuit operation is modeled by means of population, mass, and energy balances for the equipment of an industrial urea granulation ...
Modeling of an industrial vibrating double-deck screen of a urea granulation circuit
(American Chemical Society, 2009-03)
A reliable mathematical model to predict the performance of double-deck screens from an industrial urea granulation circuit is provided in this work. The classification in each deck was described by the empirical model ...
A Validated Flowsheeting Tool for the Study of an Industrial Granulation Process
(American Chemical Society, 2013-09)
This work evaluates the capabilities of a complete dynamic simulator developed for a urea granulation circuit (based on fluidized-bed technology) to analyze the process sensitivity against different disturbances and to ...
Modeling of an Industrial Double-Roll Crusher of a Urea Granulation Circuit
(Elsevier Science Sa, 2008-04)
Since for granulation processes the crusher operation has a decisive influence on the system stability, a reliable mathematical model to represent an industrial double-roll crusher of a urea granulation circuit is provided ...