Hilden, Germany
Hilden, Germany

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Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: LCE-24-2016 | Award Amount: 3.21M | Year: 2016

ROLINCAP will search, identify and test novel phase-change solvents, including aqueous and non-aqueous options, as well as phase-change packed bed and Rotating Packed Bed processes for post-combustion CO2 capture. These are high-potential technologies, still in their infancy, with initial evidence pointing to regeneration energy requirements below 2.0 GJ/ton CO2 and considerable reduction of the equipment size, several times compared to conventional processes . These goals will be approached through a holistic decision making framework consisting of methods for modeling and design that have the potential for real breakthroughs in CO2 capture research. The tools proposed in ROLINCAP will cover a vast space of solvent and process options going far beyond the capabilities of existing simulators. ROLINCAP follows a radically new path by proposing one predictive modelling framework, in the form of the SAFT- equation of state, for both physical and chemical equilibrium, for a wide range of phase behaviours and of molecular structures. The envisaged thermodynamic model will be used in optimization-based Computer-aided Molecular Design of phase-change solvents in order to identify options beyond the very few previously identified phase-change solvents. Advanced process design approaches will be used for the development of highly intensified Rotating Packed Bed processes. Phase-change solvents will be considered with respect to their economic and operability RPB process characteristics. The sustainability of both the new solvents and the packed-bed and RPB processes will be investigated considering holistic Life Cycle Assessment analysis and Safety Health and Environmental Hazard assessment. Selected phase-change solvents, new RPB column concepts and packing materials will be tested at TRL 4 and 5 pilot plants. Software in the form of a new SAFT- equation of state will be tested at TRL 5 in the gPROMS process simulator.


Grant
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ENERGY.2011.5.1-1 | Award Amount: 3.26M | Year: 2011

A new technology towards breakthrough innovation in solvent based post-combustion CO2 capture for enhanced energy efficiency, improved cost effectiveness and increased process sustainability and environmental benefits is developed. Advances in the identification of highly performing solvents and solvent blends in CO2 absorption, the design of innovative separation equipment internals, and the development of optimal process configurations enable a cost of approximately 16 euros per ton of CO2 captured. Such achievement can have a tremendous impact in several industrial applications such as gas-fired, coal-fired, and lignite-fired power plants as well as quick-lime production plants where solvent based post-combustion CO2 absorption can become a viable solution. The current project adopts a holistic approach towards the fulfillment of the outlined goals accomplished through research and development at multiple levels within an integrated framework. At the molecular level, the use of computer aided molecular design tools supported by accurate and adequately validated thermodynamic models enables the exhaustive investigation of the performance of multiple solvents and solvent blends in post-combustion CO2 absorption processes. The solvent blends are systematically assessed and rank-ordered against their performance towards the satisfaction of relevant process, economic, operability and sustainability criteria. The optimal solvents and solvent blends are expected to exhibit significantly better characteristics than currently used solvents in terms of energy requirements and overall environmental impact. At the unit operations level, the design of innovative process configurations and column internals that are specifically tailored for the employed solvents enhance the efficiency of the absorption based separation. Advanced modeling and optimization tools in conjunction with thorough experimental procedures ensure the achievement of high mass transfer rates and optimal flow patterns. At the plant level, the comprehensive analysis of the interactions among an existing power plant and the added solvent based post-combustion CO2 capture unit enables the optimal allocation of resources for improved energy savings and the efficient integration of the new CO2 capture process components. Pilot plant testing of the newly developed technology under operating condition encountered in practical applications ensures process stability and consistency. Several industrial applications in power production and chemicals manufacture are scheduled for comprehensive study, analysis, and evaluation thus resolving all related technical and engineering issues.


Olujic Z.,Technical University of Delft | Jansen H.,Julius MONTZ GmbH
Chemical Engineering Research and Design | Year: 2015

Comprehensive liquid distribution experiments were conducted with common-size conventional and high-capacity, corrugated-sheet structured packings in a 1.4 m internal-diameter column hydraulics simulator using air/water test system at ambient conditions. The objective of the present study was to observe and quantify for various liquid loads and bed depths the relation between the quality of liquid distribution of a packed bed and uniformity and density of initial irrigation profiles, and, in particular, to demonstrate the effects of severe forms of initial liquid maldistribution. © 2015 The Institution of Chemical Engineers.


Dejanovic I.,University of Zagreb | Halvorsen I.J.,Sintef | Skogestad S.,Norwegian University of Science and Technology | Jansen H.,JULIUS MONTZ GmbH | Olujic T.,Technical University of Delft
Chemical Engineering and Processing: Process Intensification | Year: 2014

This study addresses technical feasibility related aspects of multi-partition wall alternatives for a four-product dividing wall column, which, although highly beneficial, have not been yet attempted in industrial practice. Utilizing an industrially relevant aromatics processing plant case as basis for design and evaluation of cost-effectiveness of alternative configurations, this paper focuses on the hydraulic design and dimensioning of a minimum energy configuration with two overhead product streams. DWC technology related issues are discussed, which can help to distinguish what makes sense and what not when dealing with practical implementation of multi-partition wall configurations. © 2014 Elsevier B.V.


Christmann J.B.P.,University of Kaiserslautern | Christmann J.B.P.,Julius Montz GmbH | Kratz L.J.,University of Kaiserslautern | Bart H.-J.,University of Kaiserslautern
Applied Thermal Engineering | Year: 2012

Multi-effect distillation (MED) is a well-established process in seawater desalination. Heat transfer surfaces used in MED-plants are exposed to highly corrosive process conditions due to direct contact to evaporating seawater. The use of polyetheretherketone (PEEK) might be a low cost and less corrodible alternative to expensive metal alloys. PEEK seems to be best suited for application in MED-plants, because it possesses an excellent mechanical and chemical resistance. One drawback of polymers is their poor thermal conductivity. Typical MED process conditions require a wall thickness of about 25 μm for PEEK to get overall heat transfer coefficients comparable to metallic heat transfer surfaces. Therefore, it is necessary to investigate the mechanical behavior of PEEK films, to ensure that they can withstand the mechanical and thermal loads in MED-plants. Stress-strain and creeping behavior of PEEK films in water were investigated at elevated temperatures and described by empirical correlations. Mechanical calculations were carried out to determine tensile loads of the polymer film in a falling film plate evaporator at typical MED process conditions. Parameter variations reveal the limitations of use for PEEK film heat transfer surfaces, but the results also show that PEEK films can withstand the mechanical loads in MED-plants. © 2012 Elsevier Ltd. All rights reserved.


Dejanovic I.,University of Zagreb | Matijasevic L.,University of Zagreb | Jansen H.,Julius Montz GmbH | Olujic Z.,Technical University of Delft
Industrial and Engineering Chemistry Research | Year: 2011

This paper introduces a comprehensive design method assembled using facilities of a commercial software package that complemented by Excel programs, which contain own column dimensioning and well established cost estimation procedures, enables proper assessment of the industrial viability of a dividing wall column (DWC) equipped with corrugated sheet structured packings. The heart of the performance simulation tool is a detailed four-column model that in conjunction with a simple, theoretically founded short-cut method providing reliable initial values for liquid and vapor splits and a simple but effective objective function for design optimality indication allows determination of the adequate stage and reflux requirement of a DWC. The proposed dimensioning method enables a close approach in accuracy to that required at the stage of conceptual design for purposes of making a bid by an equipment manufacturer. Compared to a two-columns-in-series configuration, as employed in an aromatics processing complex within a refinery, a DWC equipped with state-of-the-art structured packing and auxiliary internals requires approximately 43% less energy to deliver three fractions at required product specifications. This, accompanied by savings of nearly 51% based on total annualized costs, indicates that implementing a DWC could lead to a significant increase in profitability of aromatics processing plants. © 2011 American Chemical Society.


Dejanovic I.,University of Zagreb | Matijasevic L.,University of Zagreb | Halvorsen I.J.,Sintef | Skogestad S.,Norwegian University of Science and Technology | And 3 more authors.
Chemical Engineering Research and Design | Year: 2011

Preliminary evaluations using a simple but reliable short-cut method indicated that a 15 component aromatics mixture can be separated very efficiently into four fractions according to the given product specifications employing either a single or a multiple partition wall dividing wall column (DWC). The obtained results have been used to initiate rigorous simulations, to determine the number of stages required in different sections, as well as to obtain internal flows of vapour and liquid necessary for dimensioning and adequate cost estimation for two design alternatives. Based on the comparison of total annualised costs it appears that a multi-partition wall configuration that maximizes energy efficiency is a more attractive option for implementation in aromatics processing plants than more practical single partition wall configuration. © 2011 The Institution of Chemical Engineers.


Christmann J.B.P.,University of Kaiserslautern | Christmann J.B.P.,Julius Montz GmbH | Kratz L.J.,University of Kaiserslautern | Bart H.-J.,University of Kaiserslautern
Desalination | Year: 2013

The corrosive process conditions in common multi-effect distillation (MED) plants require heat transfer surfaces consisting of high-grade metal alloys. However, corrosion resistant polymers can be a reasonable alternative to expensive metals. But it is necessary to use thin polymer films, which must be mechanically stabilized by a spacer grid, to compensate the low thermal conductivity of polymers. A falling film plate evaporator with heat transfer surfaces made out of the high performance polymer polyetheretherketone (PEEK) was already developed based on those considerations. Experimentally measured overall heat transfer coefficients with the prototype heat exchanger at MED process conditions are presented in this publication. They are comparable to typical values of metallic falling film heat exchangers. Furthermore, the heat transfer within the prototype heat exchanger was modeled and compared with the obtained experimental results. It will be shown that correlations valid for falling film heat transfer on a vertical wall are not applicable for a spacer stabilized polymeric heat transfer surface, but they can be used after modifications. © 2011 Elsevier B.V.


Olujic Z.,Technical University of Delft | Dejanovic I.,University of Zagreb | Kaibel B.,Julius Montz GmbH | Jansen H.,Julius Montz GmbH
Chemical Engineering and Technology | Year: 2012

Performance simulation of multiproduct dividing wall columns (DWCs) and related optimization considerations provide information on the energy-saving potential of various heat coupling arrangements. The control of multiproduct configurations also gains increasing attention. Information on physical implementation, i.e., the know-how required to design in a cost-effective way a DWC incorporating two or more partition walls arranged in parallel and in series, is still missing. Complex DWC sizing is explored that needs to be carried out with utmost care because pressure drop equalization is the key to ensuring the required vapor splits among parallel sections. The adopted methodology as well as related design challenges and peculiarities are illustrated by considering three feasible alternatives for a packed four-product DWC. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Patent
Julius Montz Gmbh | Date: 2013-11-19

The invention relates to a mass transfer tray of a column with a liquid feed on the tray feed side and a liquid discharge on the opposite tray discharge side, and with multiple profile-shaped channels of a U-shaped cross section that are arranged in the tray between the feed and the discharge, parallel to one another and transversely in relation to the direction of liquid flow, and form between them gas passage slits which are covered over by elongated profile-shaped hoods, which have an inverted U-shaped cross section, wherein the side walls of the channels reach into the hoods, and so the channel side walls are covered over by the hood side walls by a height that is less than the height of the channel side walls and the height of the hood side walls, wherein the liquid flows alternately in opposite directions in the channels, and so in every second channel the liquid flows in one direction and in the channels lying in between the liquid flows in the opposite direction, and wherein the hoods are set higher than the channels in the case of the channels and hoods that are closer to the tray feed side, and consequently the heights over which they cover one another are less than in the case of the channels and hoods that are closer to the tray discharge side.

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