Combustion characteristic of coal–ammonia composite

Zhao, Jian; Mei, Xueqiao; Yuan, Han; Yu, Guoxiang; Mei, Ning

doi:10.1080/15567036.2016.1214638

Cited by 3 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coal-ammonia mixture has been found to have lower carbon emission than crude coal. 19 However, for the production of hydrogen, which is used as a raw material in ammonia synthesis, various production scenarios have been developed for the production of blue ammonia with lower carbon dioxide emissions, while the focus is on green ammonia production where no carbon dioxide emission occurs. 20 In China, where ammonia is mostly produced as a raw material, alternative processes such as Solid Oxide Electrolysis Cell are being studied in green ammonia production in order to reduce the carbon emissions.…”

Section: Introductionmentioning

confidence: 99%

A Critical Assessment of Green Ammonia Production and Ammonia Production Technologies

Gezerman

2022

Kemija U Industriji

View full text Add to dashboard Cite

Greenhouse gas emissions in industrial raw material production significantly reduce the global air quality, which directly affects the quality of life. In order to reduce greenhouse gas emissions, it is seen that country administrations encourage the development of industrial production processes according to regulations and laws. Currently, ammonia synthesis is the industrial process that emits the highest amount of carbon dioxide. An enormous 1.6 t of carbon dioxide is released for every tonne of produced ammonia. In this study, in order to reduce the carbon emissions during ammonia production, an evaluation of ammonia production processes and technology is made and sustainability is discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

A Critical Assessment of Green Ammonia Production and Ammonia Production Technologies

Gezerman

2022

Kemija U Industriji

View full text Add to dashboard Cite

show abstract

“…The use of ammonia as a fuel is not exactly new, with a patent having been filed as early as 1937 (Valera-Medina et al, 2018). Fuel ammonia has been tested in reciprocating internal combustion engines as a gasoline or diesel substitute (Reiter and Kong, 2011); direct ammonia fuel cells (Afif et al, 2016) and as a coal substitute (Zhao et al, 2017). Its use for power applications has been comprehensively reviewed recently (Valera-Medina et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

A Comparative Environmental Life Cycle Assessment of the Combustion of Ammonia/Methane Fuels in a Tangential Swirl Burner

Razón

Valera‐Medina

2021

Front. Chem. Eng.

View full text Add to dashboard Cite

Ammonia has been proposed as a replacement for fossil fuels. Like hydrogen, emissions from the combustion of ammonia are carbon-free. Unlike hydrogen, ammonia is more energy dense, less explosive, and there exists extensive experience in its distribution. However, ammonia has a low flame speed and combustion emits nitrogen oxides. Ammonia is produced via the Haber-Bosch process which consumes large amounts of fossil fuels and requires high temperatures and pressures. A life cycle assessment to determine potential environmental advantages and disadvantages of using ammonia is necessary. In this work, emissions data from experiments with generating heat from tangential swirl burners using ammonia cofired with methane employing currently available technologies were utilized to estimate the environmental impacts that may be expected. Seven ammonia sources were combined with two methane sources to create 14 scenarios. The impacts from these 14 scenarios were compared to those expected from using pure methane. The results show that using ammonia from present-day commercial production methods will result in worse global warming potentials than using methane to generate the same amount of heat. Only two scenarios, methane from biogas combined with ammonia from hydrogen from electricity and nuclear power via electrolysis and subsequent ammonia synthesis using nitrogen from the air, showed reductions in global warming potential. Subsequent analysis of other environmental impacts for these two scenarios showed potentially lower impacts for respiratory organics, terrestrial acidification-nutrification and aquatic acidification depending on how the burner is operated. The other eight environmental impacts were worse than the methane scenario because of activities intrinsic to the generation of electricity via wind power and nuclear fission. The results show that generating heat from a tangential swirl burner using ammonia currently available technologies will not necessarily result in improved environmental benefits in all categories. Improvements in renewable energy technologies could change these results positively. Other means of producing ammonia and improved means of converting ammonia to energy must continue to be explored.

show abstract

Reactive nitrogen: A perspective on its global impact and prospects for its sustainable production

Razón

2018

Sustainable Production and Consumption

View full text Add to dashboard Cite

Combustion characteristic of coal–ammonia composite

Cited by 3 publications

References 7 publications

A Critical Assessment of Green Ammonia Production and Ammonia Production Technologies

A Critical Assessment of Green Ammonia Production and Ammonia Production Technologies

A Comparative Environmental Life Cycle Assessment of the Combustion of Ammonia/Methane Fuels in a Tangential Swirl Burner

Reactive nitrogen: A perspective on its global impact and prospects for its sustainable production

Contact Info

Product

Resources

About