Carbon Capture

Saeb M Besarati

Brian J Holman

William Tod Gross

Andrea Pedretti

Noah David Liebman

Jonas Lee

Dan Fang

Eric W Colbert

Alex Welch

Michael A Giardello

Eric Colbert

Systems and methods for modular and adaptable carbon dioxide (CO) capture, separation, and storage in a variety of disparate site locations are provided. The systems and methods include utilizing a plurality of transportable, mass-producible, and stackable COcapture modules locally arranged in a cluster serviced by modular or locally fixed utilities modules that are in turn serviced by centralized plant services facilities, which may be dedicated to the COcapture system or may alternatively be shared with other co-located operations. The COcapture modules comprise a plurality of sorbent reactors, each comprising removable sorbent cartridges which may be easily exchanged for maintenance or upgrade purposes. The COsorbent reactors are alternatively operated in adsorption and desorption modes and synchronized with each other within the sorbent module and the corresponding cluster to achieve continuous operation.

Modular open systems architecture direct air capture platform

The present invention uses an inert gas medium to heat an adsorbent bed and effect desorption of one or more chemical moieties adsorbed thereon. In particular, the invention is useful for the desorption of COfrom adsorption beds utilized for direct air capture (DAC) of COas well as adsorption beds utilized for capture of COfrom flue gases. The inert gas medium is heated to the necessary sorbent desorption temperature and passed through a COadsorbent bed to bring it up to the proper desorption temperature and effect desorption. Once the bed is fully desorbed, the CO-enriched gas medium is passed through one or more condensers to separate the inert gas medium from the COproduct.

Carbon capture process utilizing inert gas medium to assist thermal desorption

The direct air capture (DAC) systems and methods efficiently and economically regenerate a desiccant bed without adding any thermal energy and without requiring any pressurization or depressurization of the desiccant reactors. The methods leverage water concentration differences in stream flows, the water concentration profile across a desiccant bed, and, optionally, exothermic water adsorption. These three elements, working in combination, are referred to as 'reverse dry flow regeneration' or a 'reverse dry air swing' regeneration process. Systems and methods for reverse flow regeneration include those for CODAC applications, but they are also applicable to point source carbon capture and other similar technologies that require initial gas dehydration before exposure to a hydrophilic material.

Continuous processes and systems to reduce energy requirements of using zeolites for carbon capture under humid conditions

Solid sorbents, and especially zeolites, are attractive candidates for COdirect air capture (DAC) and point source capture applications because of their potential for high selectivity, fast kinetics, and low energy COcapture cycles. A common issue with solid sorbents, including zeolites, is their low thermal conductivity, which makes them difficult to heat for regeneration without using complex and expensive heat transfer systems. This invention utilizes a modified TVSA process which utilizes the product COgas itself as the heating medium for the adsorbent bed, alone or in conjunction with internal or external heaters. The use of COas a heating medium allows efficient heating of the sorbent bed and enables high purity COproduct.

Temperature vacuum swing adsorption process suited for carbon capture to regenerate sorbents using the CO2 product gas as the heat transfer medium

The invention relates to integrated methods for direct capture of carbon dioxide and water from the atmosphere and their conversion into value-added products in an economical and carbon negative fashion. In one embodiment of the present invention, a portion of the water captured in a DAC process is treated, bottled, and sold as value-added drinking water, thereby offsetting the cost of the capture process. Preferably the drinking water is bottled in low carbon footprint packaging to offer cost benefit while maintaining overall carbon neutrality or negativity. In other embodiments of the invention, a portion of the captured water is split by photovoltaic electrolysis into hydrogen and oxygen as further value-added products. In other embodiments of the present invention, a portion of the captured carbon dioxide is chemically reduced, preferably utilizing hydrogen from the aforementioned photovoltaic-electrolysis process, to produce methanol for use as a carbon-advantaged fuel.

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Pasadena, CA, United States of America

Saeb M Besarati