[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

In this paper, three of the leading options for large scale CO2 capture are reviewed from a technical perspective. We consider solvent-based chemisorption techniques, carbonate looping technology, and the so-called oxyfuel process. For each technology option, we give an overview of the technology, listing advantages and disadvantages. Subsequently, a discussion of the level of technological maturity is presented, and we conclude by identifying current gaps in knowledge and suggest areas with significant scope for future work. We then discuss the suitability of using ionic liquids as novel, environmentally benign solvents with which to capture CO2. In addition, we consider alternatives to simply sequestering CO2—we present a discussion on the possibility of recycling captured CO2 and exploiting it as a C1 building block for the sustainable manufacture of polymers, fine chemicals, and liquid fuels. Finally, we present a discussion of relevant systems engineering methodologies in carbon capture system design.

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An overview of CO2 capture technologies

http://www.faratarjome.ir/u/media/shopping_files/store-EN-1428562662-888.pdf

Progress and trends in CO2 capture/separation technologies: A review

Alkanolamine solutions are frequently used as solvent for the removal of acid compounds from industrial gases (Kohl and Riesenfeld, 1979). Depending on the process requirements, e.g., selective removal of H2S, CO2-bulk removal, several options for alkanolamine based treating solvents with varying compositions of the solution have been proposed. In this paper an overview is presented of the mechanisms that have been proposed in literature and the kinetic data for the various reactions are critically evaluated. Conclusions on the applicability and restrictions are discussed along with perspectives. In addition white spots in the present knowledge are indicated. The reaction between CO2 and primary/secondary amines both in aqueous and non-aqueous solutions can be described over a wide range of conditions and amine concentrations with the zwitterion-mechanism as originally proposed by Caplow (1968) and reintroduced by Danckwerts (1979). All published results, both non-aqueous and aqueous solutions, amine-prom...

On the kinetics between co2 and alkanolamines both in aqueous and non-aqueous solutions. an overview

Ionic liquids (ILs) offer a wide range of promising applications because of their much enhanced properties. However, further development of such materials depends on the fundamental understanding of their hierarchical structures and behaviors, which requires multiscale strategies to provide coupling among various length scales. In this review, we first introduce the structures and properties of these typical ILs. Then, we introduce the multiscale modeling methods that have been applied to the ILs, covering from molecular scale (QM/MM), to mesoscale (CG, DPD), to macroscale (CFD for unit scale and thermodynamics COSMO-RS model and environmental assessment GD method for process scale). In the following section, we discuss in some detail their applications to the four scales of ILs, including molecular scale structures, mesoscale aggregates and dynamics, and unit scale reactor design and process design and optimization of typical IL applications. Finally, we address the concluding remarks of multiscale strat...

Multiscale Studies on Ionic Liquids

Some liquid holdup experimental data in trickle-bed reactors for foaming and nonfoaming hydrocarbons

Residence time distribution in the liquid phase of trickle flow in packed columns

The triplet "molecular processes-product-process" engineering: the future of chemical engineering ?

In the frame of globalization and sustainability, process intensification, a path to the future of chemical and process engineering (molecules into money)

Flow patterns, pressure loss and liquid holdup for gas-liquid concurrent downflow have been studied in glass beds and in cylindrical and spherical Co/Mo/AI2O3 catalyst packings with foaming and nonfoaming liquids. The different flow patterns encountered in this study are gathered in a flow pattern diagram. Correlations of pressure loss and liquid holdup are proposed in terms of the single-phase friction loss or frictional energy for the liquid and the gas when each flows alone in the bed. The types of correlation depend on the tendency of the fluid to foam or not. A comparison of the flow diagram and the pressure drop and holdup correlation of this work with those of other published studies is also presented.

Jean-Claude Charpentier

Papers

Some liquid holdup experimental data in trickle-bed reactors for foaming and nonfoaming hydrocarbons

Residence time distribution in the liquid phase of trickle flow in packed columns

The triplet "molecular processes-product-process" engineering: the future of chemical engineering ?

In the frame of globalization and sustainability, process intensification, a path to the future of chemical and process engineering (molecules into money)

Flow pattern, pressure loss and liquid holdup data in gas-liquid downflow packed beds with foaming and nonfoaming hydrocarbons