What is the meaning of spray drying?
Spray drying is a process by which a material is transformed from a fluid state into a dried powder form by spraying the liquid feed into a hot drying medium. It is one of the most economical and commercially feasible drying techniques (Shishir and Chen, 2017).
What is spray drying chemistry?
Spray drying involves the atomisation of a liquid feed into very small droplets within a hot drying gas leading to flash drying of the droplets into solid particles. The particles are then separated from the drying gas, using a cyclone and/or a filter bag, as a final spraydried product.
What is spray drying PDF?
Spray drying is the continuous transformation of feed from a fluid state into dried particulate form by spraying the feed into a hot drying medium. The feed may be solution, slurry, emulsion, gel or paste, provided it is pumpable and capable of being atomized.
Why is spray drying important?
Benefits of Spray-Drying It enables ingredient suppliers to tailor the functionality of their food ingredients. Control over final product dispersibility in solution is obtainable, as is modification of final product color.
What are uses of spray dryer?
1. Spray dryer is used in drying pharmaceuticals like penicillin, blood products, enzymes, vaccines, etc. 2. It is used in the production of excipients and co-processed excipients with increased flowability, compatibility, and tablet disintegration.
What are uses of spray drier?
What are advantages of the spray drying process?
Spray drying method has the characteristics of fast heat-transfer, rapid water evaporation, and short drying time. It can improve the dissolution rate of certain formulations, suitable for heat-sensitive drugs. In addition, spray drying can be used to prepare microcapsules.
What is the principle of spray dryer?
Principle of spray dryer Spray drying is the continuous transformation of feed from a fluid state into dried particulate form by spraying the feed into a hot drying medium. The feed is either solution, slurry, emulsion, gel or paste which is provided through pump in atomized form.
What are the uses of spray dryer?
What is spray dryer how it works?
There are three fundamental steps involved in spray drying. 1) Atomization of a liquid feed into fine droplets. 2) Mixing of these spray droplets with a heated gas stream, allowing the liquid to evaporate and leave dried solids. 3) Dried powder is separated from the gas stream and collected.
What temperature is spray drying?
Typical inlet temperatures for spray dryers range from 400°F to 1000°F depending on the application. The higher temperatures are normally for inorganic salt drying and the lower temperatures are normally for organic temperature sensitive products.