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Particle Generation with Liquid Carbon Dioxide Emulsions
Chemical Engineering & Technology ( IF 2.1 ) Pub Date : 2022-07-28 , DOI: 10.1002/ceat.202200176
Clara Lauscher 1 , Gerhard Schaldach 1 , Markus Thommes 1
Affiliation  

Spray drying is a common technique for particle generation. However, due to limitations in the droplet size, the production of solid submicron particles using conventional atomizers has proven to be challenging. With the aim of overcoming this limitation, the generation and expansion of emulsions of an aqueous solution and liquid carbon dioxide with a subsequent drying step was investigated. Potassium chloride concentrations in the solution between 0.1 and 10 wt. % and mass loads of the aqueous disperse phase between 0.01 and 0.09 were used in order to study their impact on the droplet and particle size. For the lowest potassium chloride concentration, median particle diameters in the submicron size range were measured for all mass loads of the disperse phase.

中文翻译:

使用液态二氧化碳乳液产生粒子

喷雾干燥是颗粒生成的常用技术。然而,由于液滴尺寸的限制,使用传统雾化器生产固体亚微米颗粒已被证明具有挑战性。为了克服这一限制,研究了水溶液和液态二氧化碳乳液的产生和膨胀以及随后的干燥步骤。溶液中的氯化钾浓度在 0.1 到 10 wt. 为了研究它们对液滴和粒径的影响,使用了介于 0.01 和 0.09 之间的水分散相的 % 和质量负载。对于最低氯化钾浓度,测量分散相的所有质量负载的亚微米尺寸范围内的中值粒径。
更新日期:2022-07-28
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