CO2 capture by using hydrates: 4 From experimental evidences to economic impossibility as a post combustion processReportar como inadecuado




CO2 capture by using hydrates: 4 From experimental evidences to economic impossibility as a post combustion process - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

* Corresponding author 1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels 2 PROPICE-ENSMSE - Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements 3 LGF-ENSMSE - UMR 5307 - Laboratoire Georges Friedel 4 DCPA - Direction Chimie et Physico-chimie appliquées 5 IET - Institute of Energy Systems

Abstract : The post-combustion CO2 capture by using clathrates is a method which takes profit of the CO2 selectivity in gas hydrate to separate it from nitrogen, or other exhausting gases from gas combustion or coal combustion.
The bottleneck is the operative pressure which still remains high and needs to be drop down to 0.5 MPa in order to compete with the reference case using Amines.
After two national projects SECOHYA, ACACIA and an European program iCAP, we tested different classes of thermodynamic additives, organic ones water non soluble cyclopentane, water soluble THF which form classical gas hydrates with structure SII, and ionic ones Tetra-N-Butyl Ammonium Bromide, TBAB which forms new types of structures, and mixture of promoters.
In this presentation, we present a flow-sheet for a CO2 capture process, with two stages, a bulk and a finisher.
After sizing, we emphasize that the volume of the bulk is similar to the volume of an Amine Process because the crystallization operates in a Gas-liquid transfer limitation regime.
But, the volume of solvent to handle is much too large to be reasonable.


Keywords : semi clathrates hydrates CO2 capture sizing costing





Autor: Jean-Michel Herri - Matthias Kwaterski - Aurélie Galfré - Pedro Brantuas - Ana Cameirão - Yamina Ouabbas - Baptiste Bouillot -

Fuente: https://hal.archives-ouvertes.fr/



DESCARGAR PDF




Documentos relacionados