Enhancement of CO2 Absorption in Water through pH Control and Carbonic Anhydrase - A Technical Assessment
Journal article, 2019

This paper provides an industrial-scale technical assessment of absorption of CO2 in water to react into
bicarbonate (HCO3−), with the goal of storing HCO3− in the oceans as a carbon sequestration technology. A potential
advantage of the process is that it will not require a CO2 transport and storage infrastructure that will be expensive for
small-scale and remote emission sources. Process simulations are utilized to estimate absorber column length and for mass
flow estimations of water and base required for a target capture rate of 90%. The results indicate that the process is
technically feasible under specific conditions, with pH regulation being highly important, although the demand for
base represents a limiting factor. Yet, a potential niche for the process is CO2 capture at smaller plants emitting small amounts of CO2.

Author

Johanna Beiron

Chalmers, Space, Earth and Environment, Energy Technology, Energy Technology 1

Fredrik Normann

Chalmers, Space, Earth and Environment, Energy Technology

Lars Kristoferson

Lars Strömberg

Chalmers, Space, Earth and Environment, Energy Technology

Stefanìa Òsk Gardarsdòttir

Chalmers, Space, Earth and Environment, Energy Technology

Filip Johnsson

Chalmers, Space, Earth and Environment, Energy Technology

Industrial & Engineering Chemistry Research

0888-5885 (ISSN) 1520-5045 (eISSN)

Vol. 58 31 14275-14283

Cutting Cost of CO2 Capture in Process Industry

Swedish Energy Agency, 2015-07-01 -- 2019-08-30.

Subject Categories

Chemical Process Engineering

Biocatalysis and Enzyme Technology

DOI

10.1021/acs.iecr.9b02688

More information

Latest update

8/21/2019