Capture of CO2 from Steam Reformer Flue Gases Using Monoethanolamine: Pilot Plant Validation and Process Design for Partial Capture
Journal article, 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

Author

Max Biermann

Chalmers, Space, Earth and Environment, Energy Technology

Fredrik Normann

Chalmers, Space, Earth and Environment, Energy Technology

Filip Johnsson

Chalmers, Space, Earth and Environment, Energy Technology

Rayane Hoballah

Aker Carbon Capture Norway AS

K. Onarheim

Aker Carbon Capture Norway AS

Industrial & Engineering Chemistry Research

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

PREEM CCS – Carbon Capture and Storage

Swedish Energy Agency (47607-1), 2019-02-05 -- 2021-12-31.

Driving Forces

Sustainable development

Subject Categories

Physical Chemistry

Food Engineering

Materials Chemistry

Areas of Advance

Energy

DOI

10.1021/acs.iecr.2c02205

Related datasets

Supporting Information [dataset]

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

More information

Latest update

10/26/2023