Fluidized bed granulation process : effect of chamber and binder temperature on granule physical properties

Ahmad Tajudin, Ahmad Farhan (2017) Fluidized bed granulation process : effect of chamber and binder temperature on granule physical properties. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This project paper showed through experimental research on the production of urea fertilizer by using a machine called fluidized bed granulator. This study was done by ensuring a few parameters that may influence desired urea fertilizer formed. There are three parameters used in this experiment, there are chamber temperature, binder temperature and the binder concentration required to produce the size, density and hardness of the desired urea. The optimum parameters determined by the observation of the experiments and the literature review on previous research. Additionally, the experiment will conduct appropriately with changes of the process variables such as spray rate to improve the result of previous studied. Data are collected by measuring size, hardness and density of the urea granules using several methods such as sieve test, water displacement method, and hardness test. Data are analyzed on using ANOVA analysis by Design Expert software. Applying the two level factorial design in the experiment, it is observed that the optimize value of each parameter with desirability of 0.882 and predicted hardness (2.52 kgf/granule) and density (1.2665g/cm3) could be obtained with 50̊C of chamber temperature, 50̊C for binder temperature, 55% for urea solution concentration. Most granules form meet the desired size, hardness and density.

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