Advanced Drying Techniques - Preserving Quality

In the next section, we will present experimental efforts to look for alternatives to the high-pressure process of supercritical drying. The goal is the production ofhighly porous dry gels by subcritical and ambient pressure routes or by freeze-drying. 

The assignment ofliterature work to subsections on freeze-drying (Section 5.5.2), vacuum drying (Section 5.5.3) and convective drying (Section 5.5.4) accounts for the historical context and is not strict, because different drying techniques have often been compared in one and the same work. 

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Advanced Drying Techniques - Preserving Quality 119J... 

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