Industrial Zeolite Applications for Gas Adsorption and Separation Processes
The industrial use of zeolites for adsorptive and separative applications at a mature level has been generalized in the last decades. Thanks to the advantages associated with the usual higher reversibility of the adsorption process, improved energy effici
- PDF / 969,699 Bytes
- 31 Pages / 439.37 x 666.142 pts Page_size
- 68 Downloads / 230 Views
Industrial Zeolite Applications for Gas Adsorption and Separation Processes Javier Pérez-Pellitero and Gerhard D. Pirngruber
Contents 1 2 3 4
Introduction What Is Expected from an Ideal Industrial Adsorbent Overview of Commercial Zeolites and Their Evolution Main Industrial Separative Applications 4.1 Natural Gas and Air Drying 4.2 Oxygen Production 4.3 Hydrogen Production 4.4 CO2 Separations 4.5 n-Paraffin/i-Paraffin Separation 4.6 Xylene Isomers Separation 4.7 Other Industrial Separations Involving Zeolites 5 Industrial Zeolite Development and Improvement 5.1 Tuning Selectivity 5.2 Balancing Capacity, Selectivity, and Regenerability 5.3 Balancing Capacity and Mass Transfer 5.4 Ensuring the Continuous Regenerability and Thermochemical and Mechanical Properties of the Adsorbent 6 Perspectives for Future Research References
Abstract The industrial use of zeolites for adsorptive and separative applications at a mature level has been generalized in the last decades. Thanks to the advantages associated with the usual higher reversibility of the adsorption process, improved energy efficiencies can be obtained leading to a consolidated alternative to the traditional separation techniques. In a first part, the main industrial applications and the associated zeolite adsorbents are covered. Thus, the most relevant and critical properties of zeolites for a selected application are highlighted. Afterward, based on the mentioned properties, the development and improvement of adsorbents for industrial separations is addressed. A collection of selected examples is presented J. Pérez-Pellitero (*) and G. D. Pirngruber Catalysis, Biocatalysis and Separation Division, IFP Energies Nouvelles, Solaize, France e-mail: [email protected]
J. Pérez-Pellitero and G. D. Pirngruber
to illustrate different theoretical and experimental approaches linking (in qualitatively or quantitative ways) the main properties of a given adsorbent and the industrial performances. The proposed methodologies are expected to help in the diversification of industrially available adsorbents by integrating the process perspective from the initial stages of the adsorbent development. Keywords Adsorption · Hydrogen · Industrial · Natural gas · Oxygen · PSA · Separation · SMB · VSA · Xylenes · Zeolites
1 Introduction Separation agents and technologies have focused the attention of the research community during the last decades. Although the progress realized in particular in the last decades is huge, only a limited amount of separation agents and techniques is nowadays industrially available. This fact reflects the need for well-targeted adsorbent selection criteria allowing to identify the candidates that maximize the probability of living up to the challenges of industrial operation. Indeed, besides a good separation factor, certainly crucial to implement a given separation, several other conditions must be fulfilled in order to meet the industrial operation criteria. These other criteria can extend from economical ones through thermal stability or t
Data Loading...
