Product quality control drying

Ethylene, hydrogen, co-monomer and a super-high activity catalyst are fed into the reactors (1). Polymerization reaction occurs under a slurry state. The automatic polymer property control system plays a very effective role in product-quality control. Slurry from the reactors is pumped to the separation system (2). The wetcake is dried into powder in the dryer system (3). As much as 90% of the solvent is separated from the slurry and is directly recycled to the reactors without any treatment. The dry powder is pelletized in the pelletizing system (4) along with required stabilizers. 

This type of dryer is clearly suitable only for materials that form a bed with an open structure. High drying rates can be achieved, with good product-quality control. Thermal efficiencies are high and, with steam heating, steam usage can be as low as... 

An apparent lack of knowledge of the important role that the dryer control plays in product quality and drying efficiency... 

In-Line Product Quality Control of Pharmaceuticals In Freeze-Drying Processes... 

Chapter 4 In-line product quality control of pharmaceuticals in freeze-drying processes... 

Barresi, A. A., Fissore, D., 2011. In-line product quality control of pharmaceuticals in freeze-drying processes, in Modem drying... 

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