Experimental pilot-scale co-firing of ammonia–hydrogen–natural gas blends with post-combustion CO2 capture

Janusz Lasek; Krzysztof Głód; Aleksander Krótki; Krzysztof Supernok; Adam Tatarczuk; Tomasz Spietz; Tadeusz Chwoła; Szymon Dobras; Rafał Fryza; Yueh Heng Li; Chao Wei Huang; Krzysztof Wacławiak

doi:10.1016/j.ijhydene.2026.156156

Experimental pilot-scale co-firing of ammonia–hydrogen–natural gas blends with post-combustion CO₂ capture

Janusz Lasek
, Krzysztof Głód
, Aleksander Krótki
, Krzysztof Supernok
, Adam Tatarczuk
, Tomasz Spietz
, Tadeusz Chwoła
, Szymon Dobras
, Rafał Fryza
, Yueh Heng Li
, Chao Wei Huang
, Krzysztof Wacławiak

Department of Material Technologies (RM/RM3)

Institute of Energy and Fuel Processing Technology
National Cheng Kung University

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents the findings of experimental investigations into the combustion of H₂/NG and NH₃/NG blends at a pilot scale of 75 kW, in conjunction with a pilot-scale CO₂ absorption process. It has been demonstrated that the existing pilot-scale natural gas burner can effectively achieve stable combustion of NG/H₂/NH₃ blends containing up to 10 vol% each of H₂ and NH₃. The study found a clear and significant increase in NO_x emissions (up to 3350 ppm) resulting from the addition of ammonia to the fuel mixture. The implementation of air staging has been shown to substantially reduce NO_x emissions, with documented decreases ranging from 80% to 90% at 282 ppm.

Original language	English
Article number	156156
Journal	International Journal of Hydrogen Energy
Volume	251
DOIs	https://doi.org/10.1016/j.ijhydene.2026.156156
Publication status	Published - 15 Jul 2026

Keywords

Ammonia
COabsorption
Combustion
Hydrogen
NO

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

Access to Document

10.1016/j.ijhydene.2026.156156

Cite this

Lasek, J., Głód, K., Krótki, A., Supernok, K., Tatarczuk, A., Spietz, T., Chwoła, T., Dobras, S., Fryza, R., Li, Y. H., Huang, C. W., & Wacławiak, K. (2026). Experimental pilot-scale co-firing of ammonia–hydrogen–natural gas blends with post-combustion CO₂ capture. International Journal of Hydrogen Energy, 251, Article 156156. https://doi.org/10.1016/j.ijhydene.2026.156156

@article{13ba2ec25c2d4563ba8dca38ce7f2489,

title = "Experimental pilot-scale co-firing of ammonia–hydrogen–natural gas blends with post-combustion CO2 capture",

abstract = "This paper presents the findings of experimental investigations into the combustion of H2/NG and NH3/NG blends at a pilot scale of 75 kW, in conjunction with a pilot-scale CO2 absorption process. It has been demonstrated that the existing pilot-scale natural gas burner can effectively achieve stable combustion of NG/H2/NH3 blends containing up to 10 vol\% each of H2 and NH3. The study found a clear and significant increase in NOx emissions (up to 3350 ppm) resulting from the addition of ammonia to the fuel mixture. The implementation of air staging has been shown to substantially reduce NOx emissions, with documented decreases ranging from 80\% to 90\% at 282 ppm.",

keywords = "Ammonia, COabsorption, Combustion, Hydrogen, NO",

author = "Janusz Lasek and Krzysztof G{\l}{\'o}d and Aleksander Kr{\'o}tki and Krzysztof Supernok and Adam Tatarczuk and Tomasz Spietz and Tadeusz Chwo{\l}a and Szymon Dobras and Rafa{\l} Fryza and Li, \{Yueh Heng\} and Huang, \{Chao Wei\} and Krzysztof Wac{\l}awiak",

note = "Publisher Copyright: {\textcopyright} 2026 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.",

year = "2026",

month = jul,

day = "15",

doi = "10.1016/j.ijhydene.2026.156156",

language = "English",

volume = "251",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Experimental pilot-scale co-firing of ammonia–hydrogen–natural gas blends with post-combustion CO2 capture

AU - Lasek, Janusz

AU - Głód, Krzysztof

AU - Krótki, Aleksander

AU - Supernok, Krzysztof

AU - Tatarczuk, Adam

AU - Spietz, Tomasz

AU - Chwoła, Tadeusz

AU - Dobras, Szymon

AU - Fryza, Rafał

AU - Li, Yueh Heng

AU - Huang, Chao Wei

AU - Wacławiak, Krzysztof

PY - 2026/7/15

Y1 - 2026/7/15

N2 - This paper presents the findings of experimental investigations into the combustion of H2/NG and NH3/NG blends at a pilot scale of 75 kW, in conjunction with a pilot-scale CO2 absorption process. It has been demonstrated that the existing pilot-scale natural gas burner can effectively achieve stable combustion of NG/H2/NH3 blends containing up to 10 vol% each of H2 and NH3. The study found a clear and significant increase in NOx emissions (up to 3350 ppm) resulting from the addition of ammonia to the fuel mixture. The implementation of air staging has been shown to substantially reduce NOx emissions, with documented decreases ranging from 80% to 90% at 282 ppm.

AB - This paper presents the findings of experimental investigations into the combustion of H2/NG and NH3/NG blends at a pilot scale of 75 kW, in conjunction with a pilot-scale CO2 absorption process. It has been demonstrated that the existing pilot-scale natural gas burner can effectively achieve stable combustion of NG/H2/NH3 blends containing up to 10 vol% each of H2 and NH3. The study found a clear and significant increase in NOx emissions (up to 3350 ppm) resulting from the addition of ammonia to the fuel mixture. The implementation of air staging has been shown to substantially reduce NOx emissions, with documented decreases ranging from 80% to 90% at 282 ppm.

KW - Ammonia

KW - COabsorption

KW - Combustion

KW - Hydrogen

KW - NO

UR - https://www.scopus.com/pages/publications/105042250287

U2 - 10.1016/j.ijhydene.2026.156156

DO - 10.1016/j.ijhydene.2026.156156

M3 - Article

AN - SCOPUS:105042250287

SN - 0360-3199

VL - 251

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

M1 - 156156

ER -