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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 ...
Dynamic simulation and optimization of a urea granulation circuit
(Italian Association of Chemical Engineering. AIDIC, 2009-05)
A dynamic flowsheet for a complete urea granulation circuit is presented in this work. This flowsheet is based on previous validated models against industrial data for the crusher and screen and on a new model for the ...
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 ...
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 ...
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 ...
Feedback control strategies for a continuous industrial fluidized-bed granulation process
(Elsevier Science, 2015-06-09)
This paper focuses on enhancing the operation of industrial granulation circuits via the design and performance evaluation of different control strategies. Particularly, the control strategies were implemented on a urea ...
Analysis of the product granulometry, temperature and mass flow of an industrial multichamber fluidized bed urea granulator
(Elsevier Science Sa, 2011-01)
In this work, a complete dynamic model of a continuous industrial fluidized bed granulator for urea production is presented. Three growth and three cooling chambers in series are simulated. Mass, energy and momentum balances ...
Deciphering New Players in the Neurogenic Adult Hippocampal Niche
(Frontiers Media, 2020-07-02)
In the mammalian adult hippocampus, new neurons are continuously generated throughout life in the subgranular zone of the dentate gyrus. Increasing evidence point out the contribution of adult-born hippocampal granule cells ...