Results 91 to 100 of about 101,001 (296)
Particle Formation by Supercritical Fluid Extraction and Expansion Process
The Scientific World Journal, 2013 Supercritical fluid extraction and expansion (SFEE) patented technology combines the advantages of both supercritical fluid extraction (SFE) and rapid expansion of supercritical solution (RESS) with on-line coupling, which makes the nanoparticle ...
Sujuan Pan +3 more
doaj +1 more source
A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns
Chemie Ingenieur Technik, EarlyView.Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn +5 more
wiley +1 more source
Applied Sciences, 2017 Triterpene compounds like betulin, betulinic acid, erythrodiol, oleanolic acid and lupeol are known for many pharmacological effects. All these substances are found in the outer bark of birch.
Markus Armbruster +4 more
doaj +1 more source
Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater
Chemie Ingenieur Technik, EarlyView.This study presents a comparison between an iterative global model and multiple approaches to a new non‐iterative model with the purpose of predicting tube wall temperature of a superheater. The results show that the non‐iterative method achieves sufficient accuracy while improving the prediction of local temperature distribution and better ...
Anežka Michálková, Zdeněk Jegla
wiley +1 more source
On buoyant convection in binary solidification [PDF]
, 2005 We consider the problem of nonlinear steady buoyant convection in horizontal mushy layers during the solidification of binary alloys. We investigate both cases of zero vertical volume flux and constant pressure, referred to as impermeable and permeable ...
Okhuysen, Brett S., Riahi, Daniel N.
core
Optimal model‐based design of experiments for parameter precision: Supercritical extraction case
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley +1 more source
The wave numbers of supercritical surface tension driven Benard convection [PDF]
The cell size or the wave numbers of supercritical hexagonal convection cells in primarily surface tension driven convection on a uniformly heated plate was studied experimentally in thermal equilibrium in thin layers of silicone oil of large aspect ...
Koschmieder, E. L., Switzer, D. W.
core +1 more source
Pattern orientation in finite domains without boundaries
, 2015 We investigate the orientation of nonlinear stripe patterns in finite domains. Motivated by recent experiments, we introduce a control parameter drop from supercritical inside a domain to subcritical outside without boundary conditions at the domain ...
Bergmann, Fabian +2 more
core +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Abstract On the centennial of higher education in Chemical Engineering in Mexico, it is pertinent to revisit the key stages that have contributed to its consolidation as a vital discipline for the nation's scientific and technological advancement. Although the initial mission of chemical engineering education was primarily oriented toward the training ...
Agustín López Munguía +3 more
wiley +1 more source
Recent Applications of Supercritical Fluid Technology to Pharmaceutical Powder Systems
KONA Powder and Particle Journal, 2014 The unique characteristics of supercritical fluids can be utilised to overcome the drawbacks associated with the conventional techniques for the generation of pharmaceutical powders.
Rana T. Bustami +3 more
doaj +1 more source