Membrane technology in carbon dioxide removal
report
This study assessed the feasibility of membrane technology in carbon dioxide removal processes. The study was carried out within the framework of the Dutch national programme on carbon dioxide removal. In this programme a number of gas streams, typical of gas streams occurring in future and present electricity generating plants, were defined. They consisted of flue gas from a coal fired plant, process gas from a plant incorporating a coal gasification unit and process gas from a plant incorporating a gas reformer. The described separation processes focused on mixtures of carbon dioxide and nitrogen and carbon dioxide and hydrogen. Two possible applications of membrane technology were examined in detail, i.e. gas absorption membranes and gas separation membranes. Gas absorption membranes are used in conjunction with conventional absorption liquids where the essential element is the replacement of a conventional absorber by membranes. The quality of the separation will be depend on the absorption liquid. In case of gas separation membranes the intrinsic properties of the membrane material cause the separation of species. The driving force in the latter case is a pressure difference across the membrane.
Topics
TNO Identifier
434434
Publisher
TNO
Collation
50 p.
Place of publication
Apeldoorn