Mixing and Dispersion in Small-Scale Flow Systems

Continuous flow chemistry is being used increasingly; however, without detailed knowledge of reaction engineering, it can be difficult to judge whether dispersion and mixing are important factors on reaction outcome. Understanding these effects can result in improved choices of reactor dimensions an...

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Main Authors: Nagy, Kevin David, Shen, Bo, Jamison, Timothy F., Jensen, Klavs F.
Other Authors: Novartis-MIT Center for Continuous Manufacturing
Format: Article
Language:en_US
Published: American Chemical Society (ACS) 2013
Online Access:http://hdl.handle.net/1721.1/76275
https://orcid.org/0000-0001-7192-580X
https://orcid.org/0000-0002-8601-7799
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author Nagy, Kevin David
Shen, Bo
Jamison, Timothy F.
Jensen, Klavs F.
author2 Novartis-MIT Center for Continuous Manufacturing
author_facet Novartis-MIT Center for Continuous Manufacturing
Nagy, Kevin David
Shen, Bo
Jamison, Timothy F.
Jensen, Klavs F.
author_sort Nagy, Kevin David
collection MIT
description Continuous flow chemistry is being used increasingly; however, without detailed knowledge of reaction engineering, it can be difficult to judge whether dispersion and mixing are important factors on reaction outcome. Understanding these effects can result in improved choices of reactor dimensions and give insight for reactor scale-up. We provide an overview of both dispersive and mixing effects in flow systems and present simple relationships for determining whether mixing or dispersion is important for a given flow system. These results are summarized in convenient charts to enable the experimentalist to identify conditions with potential mixing or dispersion problems. The information also expedites design changes, such as inclusion or changes of mixers and changes in reaction tube diameters. As a case study, application of the principles to a glycosylation reaction results in increased throughput and cleaner product profiles compared to previously reported results.
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spelling mit-1721.1/762752022-10-01T19:44:39Z Mixing and Dispersion in Small-Scale Flow Systems Nagy, Kevin David Shen, Bo Jamison, Timothy F. Jensen, Klavs F. Novartis-MIT Center for Continuous Manufacturing Massachusetts Institute of Technology. Department of Chemical Engineering Jamison, Timothy F. Nagy, Kevin David Shen, Bo Jamison, Timothy F. Jensen, Klavs F. Continuous flow chemistry is being used increasingly; however, without detailed knowledge of reaction engineering, it can be difficult to judge whether dispersion and mixing are important factors on reaction outcome. Understanding these effects can result in improved choices of reactor dimensions and give insight for reactor scale-up. We provide an overview of both dispersive and mixing effects in flow systems and present simple relationships for determining whether mixing or dispersion is important for a given flow system. These results are summarized in convenient charts to enable the experimentalist to identify conditions with potential mixing or dispersion problems. The information also expedites design changes, such as inclusion or changes of mixers and changes in reaction tube diameters. As a case study, application of the principles to a glycosylation reaction results in increased throughput and cleaner product profiles compared to previously reported results. Novartis-MIT Center for Continuous Manufacturing 2013-01-17T14:17:18Z 2013-01-17T14:17:18Z 2012-01 2011-12 Article http://purl.org/eprint/type/JournalArticle 1083-6160 1520-586X http://hdl.handle.net/1721.1/76275 Nagy, Kevin D. et al. “Mixing and Dispersion in Small-Scale Flow Systems.” Organic Process Research & Development 16.5 (2012): 976–981. https://orcid.org/0000-0001-7192-580X https://orcid.org/0000-0002-8601-7799 en_US http://dx.doi.org/10.1021/op200349f Organic Process Research & Development Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Prof. Jamison via Erja Kajosalo
spellingShingle Nagy, Kevin David
Shen, Bo
Jamison, Timothy F.
Jensen, Klavs F.
Mixing and Dispersion in Small-Scale Flow Systems
title Mixing and Dispersion in Small-Scale Flow Systems
title_full Mixing and Dispersion in Small-Scale Flow Systems
title_fullStr Mixing and Dispersion in Small-Scale Flow Systems
title_full_unstemmed Mixing and Dispersion in Small-Scale Flow Systems
title_short Mixing and Dispersion in Small-Scale Flow Systems
title_sort mixing and dispersion in small scale flow systems
url http://hdl.handle.net/1721.1/76275
https://orcid.org/0000-0001-7192-580X
https://orcid.org/0000-0002-8601-7799
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