Andrzej Górak - Academia.edu (original) (raw)

Papers by Andrzej Górak

Computer Aided Chemical Engineering, 2006

Computer Aided Chemical Engineering, 2015

ABSTRACT CO2 removal from flue gas emitted by coal fired power plants is an important objective f... more ABSTRACT CO2 removal from flue gas emitted by coal fired power plants is an important objective for process sustainability. However, solvent regeneration in state-of-the-art absorption processes results in power plant efficiency losses of 7 to 15 % (Neveux et al., 2013). Process intensification, combining different and innovative technologies for gas separation, can result in highly efficient processes capable of reducing the energy penalty caused by CO2 capture. Current approaches for conceptual process design (CPD) however rarely consider emerging technologies like membrane contactors or hybrid process configurations. We present a multi-stage approach to overcome this drawback, which bases on process decomposition in different levels, combined with an efficient screening of promising materials and process design variants by means of shortcut methods. The approach follows the idea of an iterative refinement, in which the modeling accuracy increases while the number of process variants decreases.

The Chemical Engineering Journal and the Biochemical Engineering Journal, 1995

Reactive distillation (RD) is a process that combines reaction and distillation into one step. Th... more Reactive distillation (RD) is a process that combines reaction and distillation into one step. Though the advantages of RD are well documented it's commercial applications are still few. Reasons to this are the complexity of the process, lack of knowledge to design these systems, need for improved software tools to evaluate and design RD, and limited number of suitable catalyst and equipment to place catalyst inside the column. To overcome these obstacles a three-year project "Reactive distillation" initiated by SUSTECH and supported by EU in the frame of the BriteEuram III program was formed. The consortium consists of the companies Neste Oyj (Finland, Co-ordinator), BP Chemicals (Great Britain), Hoechst (Germany), BASF (Germany), Snamprogetti (Italy), and universities of Clausthal (Germany), Dortmund (Germany), Aston (Great Britain), Bath (Great Britain) and Helsinki University of Technology (Finland). This paper presents an overview of the progress of the project an...

Chemical Engineering Science, 2014

Computer Aided Chemical Engineering, 2003

The heterogeneously catalysed synthesis of TAME (tert-amyl-methyl ether) via reactive distillatio... more The heterogeneously catalysed synthesis of TAME (tert-amyl-methyl ether) via reactive distillation is investigated experimentally and theoretically. The structured catalytic packing Montz MULTIPAK®-2 is used in the catalytic section of a 200 mm diameter pilot scale column with a total packing height of 4 meters. Simulations with a developed rate-based model covering 11 components and 4 chemical reactions are in good agreement with experimental data. The simulations studies show the influence of the reflux ratio on conversion and selectivity.

Annual review of chemical and biomolecular engineering, 2011

Process intensification follows four main goals: to maximize the effectiveness of intra- and inte... more Process intensification follows four main goals: to maximize the effectiveness of intra- and intermolecular events, to give each molecule the same processing experience, to optimize the driving forces/maximize specific interfacial areas, and to maximize the synergistic effects of partial processes. This paper shows how these goals can be reached in reaction and separation systems at all relevant time and length scales and is focused on the structuring of reactors and separation units, on the use of different energy forms to improve the reaction and separation, on combining and superimposing of different phenomena in one integrated unit or reactor, and on the application of oscillations for intensification of reaction and separation processes.

Procedia Engineering, 2012

Computer Aided Chemical Engineering, 2007

Journal of Polymer Engineering, 2000

Computers & Chemical Engineering, 2009

Membrane assisted batch reaction operation offers an interesting option for equilibrium limited r... more Membrane assisted batch reaction operation offers an interesting option for equilibrium limited reaction systems in chemical and biochemical manufacturing by selective removal of one of the products and thereby increasing the product yield. The design of such hybrid systems need to take into account the performance of each constituent element and the optimisation of the design must take into consideration