Correlation of reaction rates for lactic acid hydrogenation in batch and trickle bed reactors

Yaoyan Xi, Dennis J. Miller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reconciling reaction rates between batch and fixed bed catalytic reactors for three-phase reactions is challenging because of mass transport resistances and reactor hydrodynamics. The ruthenium-catalyzed hydrogenation of lactic acid was examined in both stirred batch and trickle bed reactors in order to correlate the reaction rates observed therein. Within the intrinsic kinetic regime of operation, propylene glycol formation rates in both reactors correlate well with each other and are independent of catalyst loading in the batch reactor and feedstock flow rate in the trickle bed reactor. These results make it possible to predict performance in a trickle-bed reactor based on experiments conducted in bench-scale batch reactors.

LanguageEnglish (US)
Title of host publicationAIChE Annual Meeting, Conference Proceedings
StatePublished - 2009
Event2009 AIChE Annual Meeting, 09AIChE - Nashville, TN, United States
Duration: Nov 8 2009Nov 13 2009

Other

Other2009 AIChE Annual Meeting, 09AIChE
CountryUnited States
CityNashville, TN
Period11/8/0911/13/09

Profile

Batch reactors
Lactic acid
Hydrogenation
Reaction rates
Lactic Acid
Propylene Glycol
Ruthenium
Glycols
Feedstocks
Propylene
Mass transfer
Hydrodynamics
Flow rate
Catalysts
Kinetics
Experiments

Keywords

  • Batch reactor
  • Correlation
  • Hydrogenation
  • Lactic acid
  • Reaction rate
  • Trickle bed reactor

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Correlation of reaction rates for lactic acid hydrogenation in batch and trickle bed reactors. / Xi, Yaoyan; Miller, Dennis J.

AIChE Annual Meeting, Conference Proceedings. 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xi, Y & Miller, DJ 2009, Correlation of reaction rates for lactic acid hydrogenation in batch and trickle bed reactors. in AIChE Annual Meeting, Conference Proceedings. 2009 AIChE Annual Meeting, 09AIChE, Nashville, TN, United States, 11/8/09.
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AB - Reconciling reaction rates between batch and fixed bed catalytic reactors for three-phase reactions is challenging because of mass transport resistances and reactor hydrodynamics. The ruthenium-catalyzed hydrogenation of lactic acid was examined in both stirred batch and trickle bed reactors in order to correlate the reaction rates observed therein. Within the intrinsic kinetic regime of operation, propylene glycol formation rates in both reactors correlate well with each other and are independent of catalyst loading in the batch reactor and feedstock flow rate in the trickle bed reactor. These results make it possible to predict performance in a trickle-bed reactor based on experiments conducted in bench-scale batch reactors.

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