umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Comparative Study of Reactive Flash Distillation vs Semibatch Reactor Technologies for the Glycerol Hydrochlorination with Gaseous HCl
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
2016 (Engelska)Ingår i: Industrial & Engineering Chemistry Research, ISSN 0888-5885, E-ISSN 1520-5045, Vol. 55, nr 19, s. 5500-5513Artikel i tidskrift (Refereegranskat) Published
Resurstyp
Text
Abstract [en]

The present work provides a systematic comparison of solvent-free glycerol hydrochlorination with semibatch and reactive flash distillation technologies. All the experiments were performed at atmospheric pressure and constant flow rate of gaseous HCl in the temperature range of 70 to 120 degrees C. Both acetic acid and adipic acid were used as homogeneous catalysts, separately, at a concentration of 12% by moles of each. In addition, a series of noncatalytic experiments was investigated. A comparative analysis between reactive flash distillation and semibatch operation suggested that reactive flash distillation only increases the production rate of the desired product 1,3-dichloropropan-2-ol (alpha gamma-DCP) for the highest temperature, i.e. 120 degrees C. Many aspects of the HCl liquid uptake were also exposed once water was allowed to leave the liquid phase, revealing that water also has a positive influence on the reaction rate because it promotes HCl solubility and hydrolysis. Such an important effect was not predicted by previous investigations, and it is hereby described for the first time. Additional semibatch experiments were conducted, in which different amounts of water and alpha gamma-DCP were initially added. It was found that, water exerts competing effects in the glycerol hydrochlorination; addition of alpha gamma-DCP showed an improvement of the reaction kinetics and decrease of HCl consumption. It is suggested that instead of using reactive distillation, a wiser choice to perform glycerol hydrochlorination would be to recycle large amounts of the product stream to achieve high conversion levels at milder temperatures and consuming less HCl gas.

Ort, förlag, år, upplaga, sidor
American Chemical Society (ACS), 2016. Vol. 55, nr 19, s. 5500-5513
Nationell ämneskategori
Kemi
Identifikatorer
URN: urn:nbn:se:umu:diva-122565DOI: 10.1021/acs.iecr.5b03195ISI: 000376331900006OAI: oai:DiVA.org:umu-122565DiVA, id: diva2:950187
Projekt
Bio4EnergyTillgänglig från: 2016-07-28 Skapad: 2016-06-20 Senast uppdaterad: 2019-08-29Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Personposter BETA

Mikkola, Jyri-Pekka

Sök vidare i DiVA

Av författaren/redaktören
Mikkola, Jyri-Pekka
Av organisationen
Kemiska institutionen
I samma tidskrift
Industrial & Engineering Chemistry Research
Kemi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 191 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf