Compression and liquefaction unit for measuring impurities in the CO2

13 Pages Posted: 22 Nov 2022

See all articles by Thor Mejdell

Thor Mejdell

SINTEF Industry

Kai HJarbo

SINTEF Industry

Lars Hovdahl

SINTEF Industry

Actor Chikukwa

SINTEF Industry

Inna Kim

SINTEF Industry

Date Written: November 21, 2022

Abstract

A new CO2 Compression and Liquefaction Unit (CCLU) for measuring impurities in the CO2 product has been built, commissioned, and connected to the CO2 capture pilot plant at SINTEF. The unit will be used to measure impurities in the CO2 after compression and drying at conditions relevant to CO2 shipping or transport. The CCLU has been designed with components like an industrial-sized unit, with three compressor stages including cooling and condensate knock-out drums. After being compressed to 35 - 40 bar, the CO2 gas is dried and then cooled down and liquefied at -5 to -10 °C by an external cooler. The liquefied CO2 is then expanded to 16 bars through an expansion valve and stored at -24.4 °C in a storage tank.
Liquid samples are taken from the knock-out drums whilst gas samples are extracted upstream of the external cooler. It is also possible to take a sample of the gas out of the storage tank. In a short test campaign with 30 wt% MEA, the CCLU has shown to operate well and have a fast response to steady-state conditions.

Keywords: CO2 Compression and Liquefaction; Chemical Absorption; Carbon Capture; MEA

Suggested Citation

Mejdell, Thor and Hjarbo, Kai and Hovdahl, Lars and Chikukwa, Actor and Kim, Inna, Compression and liquefaction unit for measuring impurities in the CO2 (November 21, 2022). Proceedings of the 16th Greenhouse Gas Control Technologies Conference (GHGT-16) 23-24 Oct 2022, Available at SSRN: https://ssrn.com/abstract=4283091 or http://dx.doi.org/10.2139/ssrn.4283091

Thor Mejdell (Contact Author)

SINTEF Industry ( email )

Post box 4760 Torgarden
Trondheim, NO-7465
Norway
98243487 (Phone)

Kai Hjarbo

SINTEF Industry

Lars Hovdahl

SINTEF Industry

Actor Chikukwa

SINTEF Industry

Inna Kim

SINTEF Industry ( email )

Post box 4760 Torgarden
Trondheim, NO-7465
Norway
98283924 (Phone)

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