Investigation on the formic acid evaporation and ignition of formic acid/octanol blend at elevated temperature and pressure

Maharjan, Sumit; Elbaz, Ayman M.; Roberts, William L.

doi:10.1016/j.fuel.2021.122636

Cited by 4 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Resultsmentioning

confidence: 52%

“…Regardless of the investigated composition, numerical models show that formic acid does not autoignite at intermediate temperatures, as also observed at higher pressures. 55 From the thermal decomposition of HOCHO at intermediate temperatures, the active onset decomposition temperature and complete consumption of HOCHO are found to be at 803 and 1050 K, respectively. From the simulation result using KiBo_MU at lean conditions, around 42% of HOCHO was consumed at 903 K and 36% consumed within a temperature range of 929−955 K, whereas 14 and 50% of HOCHO were consumed, respectively, at 903 and 929−955 K in the case of KiBo_AG.…”

Section: Profiles Of Main Productsmentioning

confidence: 97%

See 1 more Smart Citation

Modeling Formic Acid Combustion

2022

View full text Add to dashboard Cite

Nowadays, the knowledge of the gas-phase chemistry of formic acid is paramount for several industrial sectors, including energy supply and the production of bulk chemicals. In this work, a simplified kinetic mechanism and a detailed kinetic mechanism deriving from a rate-based selection algorithm were developed and tested against experimental data available in the literature. The former contains 141 species and 453 reactions, whereas the latter comprises 90 species and 1047 reactions. A focus on a low initial temperature (i.e., up to 500 K) was provided by comparing the numerical estimations with laminar burning velocity and jet-stirred measurements at several conditions. A good agreement among numerical predictions and experimental data was observed, especially for the simplified kinetic mechanism. The accuracy of the generated mechanism allowed for further analysis of the chemistry of the system, enlightening some determining aspects of the chemistry of formic acid. The produced mechanism can be also intended as per seed mechanism for the generation of kinetic models focused on the chemistry of biofuels. Indeed, the characterization of chemical aspects of formic acid occurring in an oxidative environment is crucial due to its relevance as an energy vector as well as an intermediate compound in the decomposition of larger hydrocarbons and bio-oils.

show abstract

Section: Resultsmentioning

confidence: 52%

Section: Profiles Of Main Productsmentioning

confidence: 97%

Modeling Formic Acid Combustion

2022

View full text Add to dashboard Cite

show abstract

“…[16,17] Catalysts for the production of hydrogen from formic acid have also been developed over the past ten years. [18][19][20] In addition, it is a potential raw material for the chemical industry. [21] Various methods were explored to produce formic acid through the transformation of glycerol.…”

Section: Introductionmentioning

confidence: 99%

“…Formic acid can be a H 2 source for hydrogen fuel cells [13] and for biomass hydrogenation; [14] it can also be used directly in internal combustion engines [15] or fuel cells [16,17] . Catalysts for the production of hydrogen from formic acid have also been developed over the past ten years [18–20] . In addition, it is a potential raw material for the chemical industry [21] …”

Section: Introductionmentioning

confidence: 99%

Valorization of Glycerol through Plasma‐Induced Transformation into Formic Acid

Bang,

Snoeckx,

Cha

2023

ChemSusChem

View full text Add to dashboard Cite

To cope with climate change issues, a significant shift is required in worldwide energy sources. Hydrogen and bioenergy are being considered as alternatives toward a carbon neutral society, making formic acid—a hydrogen carrying product of glycerol—of interest for the valorization of glycerol. Here we investigate the plasma‐induced transformation of glycerol in an aqueous nanosecond repetitively pulsed discharge reactor. We found that the water content in the aqueous mixture fulfilled a crucial role in both the gas phase (as a source of OH radicals) and the liquid phase (as a promotor of the dissolved OH radical’s mobility and reactivity). The formic acid produced was linearly proportional to the specific input energy, and the most cost‐effective production of formic acid was found with 10‐%v/v glycerol in the aqueous mixture. A plausible reaction pathway was proposed, consisting of the OH radical‐driven dehydrogenation and dehydration of glycerol. The results provide a fundamental understanding of plasma‐induced transformation of glycerol to formic acid and insights for future practical applications.

show abstract