Capture of CO2 from Steam Reformer Flue Gases Using Monoethanolamine: Pilot Plant Validation and Process Design for Partial Capture
Artikel i vetenskaplig tidskrift, 2022

Carbon dioxide (CO2) capture from a slipstream of steam reformer flue gas (18–20 vol %wet CO2) using 30 wt % aqueous monoethanolamine was performed for ∼500 h in a mobile test unit (∼120 kg CO2/h). Specific reboiler duties (SRDs) of 3.6–3.8 MJ/kg CO2 were achieved at 90% capture. The pilot data validate the modeling of off-design partial capture, that is, operation at lower CO2 capture rates (at constant gas flow) than the absorption column was designed to achieve. This paper demonstrates that off-design partial capture enables significant energy savings (SRD, cooling) relative to on-design capture. The accrued savings depend on the column design (packing height, flooding approach) and the feed CO2 concentration. Finally, a concept for stepwise deployment of carbon capture and storage in industries with high-CO2 concentration sources (e.g., steel and cement manufacturing and refining) is introduced. Thanks to its inherent full-capture-ready design, the initial energy-efficient, off-design partial capture operation can be extended to full capture over time.

steam methane reformer

pilot-scale

amine absorption

CCS

partial capture

process industry

MEA

Författare

Max Biermann

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Fredrik Normann

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Rayane Hoballah

Aker Carbon Capture Norway AS

K. Onarheim

Aker Carbon Capture Norway AS

Industrial & Engineering Chemistry Research

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

Vol. 61

Preem CCS - Infångning och lagring av koldioxid

Energimyndigheten (47607-1), 2019-02-05 -- 2021-12-31.

Drivkrafter

Hållbar utveckling

Ämneskategorier

Fysikalisk kemi

Livsmedelsteknik

Materialkemi

Styrkeområden

Energi

DOI

10.1021/acs.iecr.2c02205

Relaterade dataset

Supporting Information [dataset]

URI: https://pubs.acs.org/doi/suppl/10.1021/acs.iecr.2c02205/suppl_file/ie2c02205_si_001.pdf

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2024-07-17