Work

Investigation of 4A zeolite-based natural gas dryers and their role in CO2 capture: An in-situ study

Year: 2025

Type: article

Abstract: In the natural gas liquefaction process, CO 2 is an undesirable component requiring removal. This study evaluated molecular sieves used to dry natural gas for CO 2 retention. The sieve was characterized by XRF, XRD, FTIR, TG/DTG, BET, and SEM, confirming its zeolitic nature with Si/Al ratio of 2. Two parameters were examined: dryer progress and process pressure. The average CO 2 retention at 40 bars was 2.22 ppm, while retention at 70 bars increased by 53.15 %. Competitive adsorption CO 2 /H 2 O in the 4A zeolite involved interactions such as CO 2 –O-framework, CO 2 –Na, CO 2 –CO 2 , H 2 O–O-framework, H 2 O–Na, and H 2 O–H 2 O.

Source: Next Materials

DOI: 10.1016/j.nxmate.2025.101463

Authors: Kamel Bentayeb, Nadjat Chouat, Boumediéne Bensafi

Institutions: Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Université Oran 1 Ahmed Ben Bella, Université de ain Témouchent

Language: English

Topic: Carbon Dioxide Capture Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Climate action

Open Access status: gold

Estimated APC paid: $1,280