Shell Oil Comapny

Technische Universitāt Wien

Technische Universitäet Wien

Shell Internationale Research Maatschappij, B.v.

Tobias Proell

Johannes Schmid

Hermann Hofbauer

Gerald Sprachmann

Gerardus Antonius Franciscus Van Mossel

Philipp Kolbitsch

Gerhard Schoeny

Johannes Bolhar-Nordenkampf

Hendrik Dathe

Christoph Pfeifer

Gerhard Schony

Gerhard SCHÖNY

The present invention relates to a process for capturing carbon dioxide from a gas stream. The gas stream is contacted with solid adsorbent particles in an adsorption zone. The adsorption zone has at least two beds of fluidized solid adsorbent particles, and the solid adsorbent particles are flowing downwards from bed to bed. The solid adsorbent particles comprise 15 to 75 weight % of organic amine compounds. The gas stream entering the adsorption zone has a dew point which is at least 5&#xb0; C. below the forward flow temperature of the coolest cooling medium in the adsorption zone. Carbon dioxide enriched solid adsorbent particles are heated, and then regenerated. The desorption zone has at least two beds of fluidized solid adsorbent particles, and the stripping gas is steam. The regenerated particles are cooled and recycled to the adsorption zone.

Process for capturing CO2 from a gas stream

A fluidized bed reactor system with one or more fluidized bed reactors for carrying out chemical or physical reactions, at least one reactor thereof being a rapidly fluidized reactor to be operated as a circulating fluidized bed and having, at the upper end, a fluid outlet, a particle separator, and a particle line connected thereto for the purpose of feeding back separated fluidized bed particles into the same or a further reactor, wherein, at least one rapidly fluidized reactor has one or more flow control devices producing reaction zones that are separate from one another, and in order to control the flow conditions into the reaction zones, one or more of these flow control devices are specifically adjustable from outside of the system.

Fluidized bed reactor system

A fluidized-bed reactor system with at least two fluidized-bed reactors, each being a circulating fluidized bed, a particle line with a particle separator for transferring fluidized-bed particles from the first to the second reactor, and a particle line exiting at the lower half of the second reactor for transferring fluidized-bed particles back to the first reactor, wherein, at least in the second reactor, two or more reaction zones separated by one or more flow controllers and that the particle line opens into the second reactor above at least one flow controller.

Growing community of inventors

Vienna, Austria

Tobias Proell