Results 201 to 210 of about 11,087 (262)

Solvent-Based Extraction Recovers Phytochemicals from Medicinal Plants Demonstrating Anticancer and Chemopreventive Potential: A Review. [PDF]

Molecules
Ojong C, Besong SA, Aryee ANA.
europepmc   +1 more source

Antimicrobial and Antioxidant Activity of Essential Oils from Selected <i>Pinus</i> Species from Bosnia and Herzegovina. [PDF]

Antibiotics (Basel)
Mirković S, Martinović M, Tadić VM, Nešić I, Jovanović AS, Žugić A.   +5 more
europepmc   +1 more source

The Crude Glycerol Challenge: Purification Technologies and Possible Valorization Pathways in the Biodiesel Industry. [PDF]

Molecules
Rosmini C, Mitrev Y, Dimitrov M.
europepmc   +1 more source

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Modelling reactive distillation

Chemical Engineering Science, 2000
The design and operation issues for reactive distillation systems are considerably more complex than those involved for either conventional reactors or conventional distillation columns. The introduction of an in situ separation function within the reaction zone leads to complex interactions between vapor–liquid equilibrium, vapor–liquid mass transfer,
Rajamani Krishna
exaly   +4 more sources

Distillation column with reactive pump arounds: an alternative to reactive distillation

Chemical Engineering and Processing: Process Intensification, 2003
Abstract The hardware design of reactive distillation (RD) columns pose severe challenges with respect to the choice and design of the hardware; the requirements of reaction (i.e. high liquid or catalyst holdup) is not in consonance with the requirement of separation (high interfacial area).
Baur, R., Krishna, R.
openaire   +4 more sources

Reactive Distillation

2022
Neural Networks is an integral part in machine learning and a known tool for controlling nonlinear processes. The area is under rapid development and provides a tool for modelling and controlling of advanced processes. This book provides a comprehensive overview for modelling, simulation, measurement and control strategies for reactive distillations ...
Sakhre, V., Singh, U. P.
openaire   +2 more sources

Semicontinuous reactive extraction and reactive distillation

Chemical Engineering Research and Design, 2009
A novel semicontinuous process that alternates between reactive extraction and reactive distillation in a single packed column is introduced. It is illustrated for the recovery of dilute 1,3-propanediol from an aqueous fermentation broth. 1,3-Propanediol is recovered by reaction with isobutyraldehyde, forming 2-isopropyl-1,3-dioxane.
Thomas A. Adams, Warren D. Seider
openaire   +1 more source

Reactive Distillation Processes

Chemical Engineering & Technology, 1999
Reactive distillation, i.e. the simultaneous implementation of reaction and distillation in a counter currently operated column, ia a promising alternative to the common sequential processes. In a preceding paper the effective phase equilibrium of a reactive distillation has been studied with a special focus on the determination of so-called reactive ...
Johann Stichlmair, Thomas Frey
openaire   +1 more source

MTBE Decomposition in a Reactive Distillation Column

Chemical Engineering Research and Design, 2004
MTBE decomposition in reactive distillation columns is investigated based on numerical simulations. Special emphasis is on the undesired side reactions. Quasi-homogeneous as well as heterogeneous column models are applied for a packed column. In the latter, the multi-component intra-particle mass transport phenomena are accounted for.
Z. Qi, A. Kienle, E. Stein, K.-D. Mohl, A. Tuchlenski, K. Sundmacher   +5 more
openaire   +3 more sources

Reactive distillation for methyl acetate production

Computers & Chemical Engineering, 2003
We describe a hierarchy of methods, models, and calculation techniques that support the design of reactive distillation columns. The models require increasingly sophisticated data needs as the hierarchy is implemented. The approach is illustrated for the production of methyl acetate because of its commercial importance, and because of the availability ...
Robert S. Huss, Fengrong Chen, Michael F. Malone, Michael F. Doherty   +3 more
openaire   +1 more source