Work

Process design for sorption-enhanced chemical looping steam methane reforming: Selection of process configuration and combustible gas type

Year: 2026

Type: article

Abstract: Process efficiency of sorption-enhanced chemical looping steam methane reforming for H 2 production were developed. The effects of reactor arrangement, namely reforming-oxidation-calcination (R-O-C) and reforming-calcination-oxidation (R-C-O) systems, and combustible gas type (CH 4 vs. H 2 ) were analyzed through process simulation. The results showed that the R-O-C exhibited higher H 2 production and process efficiency than the R-C-O, regardless of combustible gas type. However, the R-O-C produced CO 2 during the oxidation step due to heat release from the oxidation reaction. Using CH 4 as a combustible gas resulted in greater process efficiency than H 2 but led to increased CO 2 emissions, requiring additional CO 2 capture units. Among all cases studied, the R-O-C using CH 4 as a combustible gas achieved H 2 purity of 87% and process efficiency of 75% at a steam-to-carbon ratio (S/C) of 3, a calcium oxide-to-carbon ratio (CaO/C) of 1, and a nickel oxide-to-carbon ratio (NiO/C) of 0.5 at 600 °C and 1 bar.

Source: International Journal of Hydrogen Energy

DOI: 10.1016/j.ijhydene.2026.153899

Authors: Napasrapee Hemsap, Lida Simasatitkul, Suwimol Wongsakulphasatch, Worapon Kiatkittipong, Suttichai Assabumrungrat, Olaf Hinrichsen

Institutions: King Mongkut's University of Technology North Bangkok, Silpakorn University, Chulalongkorn University, Technical University of Munich

Language: English

Topic: Chemical Looping and Thermochemical Processes

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $3,730