Scaling of catalyst bed for hydrogen peroxide monopropellant thrusters using catalytic decomposition modeling

Jung, Sangwoo; Choi, Sukmin; Heo, Seonuk; Kwon, Sejin

doi:10.1016/j.actaastro.2021.06.027

Cited by 15 publications

(2 citation statements)

References 18 publications

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“…However, they are highly toxic fuels and lead to great harm to human health and the environment. Therefore, countries around the world have gradually turned their attention to the development of green and high-energy propellants, − e.g., hydrogen peroxide (H 2 O 2 ), hydroxylamine nitrate (HAN, [NH 3 OH] + [NO 3 ] − ), 2-hydroxyethylhydrazinium nitrate (HEHN, [HOCH 2 CH 2 NH 2 NH 2 ] + [NO 3 ] − ), and hydrazine nitrate (HNF) propellants. Among them, HAN is a high-energy ionic liquid.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies of HAN and HEHN Pyrolysis at Low Pressure

Zhu,

Lei,

Liu

et al. 2024

Energy Fuels

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Nitro-based ionic liquids are promising green propellants that have been studied as substitutes for hydrazine. An in-depth study of their thermal decomposition mechanism is important to further improve their combustion efficiency. In this work, pyrolysis experiments of hydroxylamine nitrate (HAN) and 2-hydroxyethylhydrazinium nitrate (HEHN) were carried out by using a flow reactor combined with synchrotron vacuum ultraviolet photoionization mass spectrometry. The mole fraction distribution of the pyrolysis products was quantitatively measured. In addition, to further understand the decomposition mechanism of nitro-based ionic liquids, we performed quantum chemical calculations on 2-hydroxyethylhydrazine (HEH), the initial decomposition product of HEHN, at the CCSD(T)/BH&HLYP/6-311++G(d,p) level. The calculation results show that bond fission and hydrogen migration are potential driving forces in the overall pyrolysis process. In particular, nitric acid plays an important role in the autocatalytic decomposition behavior of HEH. These results on the thermal decomposition of these two ionic liquids provide valuable references for the future kinetic modeling of nitro-based ionic liquids.

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Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies of HAN and HEHN Pyrolysis at Low Pressure

Zhu,

Lei,

Liu

et al. 2024

Energy Fuels

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“…H 2 O 2 has been used as a monopropellant and a non-volatile oxidizer for rockets since the 1940s [7][8][9]. Its complete decomposition releases only water vapor, oxygen, and heat, with minimal environmental impact.…”

Section: Introductionmentioning

confidence: 99%

Atomistic Insights into the Influence of High Concentration H2O2/H2O on Al Nanoparticles Combustion: ReaxFF Molecules Dynamics Simulation

Yu,

Zhang,

Zhang

et al. 2024

Molecules

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The combination of Al nanoparticles (ANPs) as fuel and H2O2 as oxidizer is a potential green space propellant. In this research, reactive force field molecular dynamics (ReaxFF-MD) simulations were used to study the influence of water addition on the combustion of Al/H2O2. The MD results showed that as the percentage of H2O increased from 0 to 30%, the number of Al-O bonds on the ANPs decreased, the number of Al-H bonds increased, and the adiabatic flame temperature of the system decreased from 4612 K to 4380 K. Since the Al-O bond is more stable, as the simulation proceeds, the number of Al-O bonds will be significantly higher than that of Al-H and Al-OH bonds, and the Al oxides (Al[O]x) will be transformed from low to high coordination. Subsequently, the combustion mechanism of the Al/H2O2/H2O system was elaborated from an atomic perspective. Both H2O2 and H2O were adsorbed and chemically activated on the surface of ANPs, resulting in molecular decomposition into free radicals, which were then captured by ANPs. H2 molecules could be released from the ANPs, while O2 could not be released through this pathway. Finally, it was found that the coverage of the oxide layer reduced the rate of H2O2 consumption and H2 production significantly, simultaneously preventing the deformation of the Al clusters’ morphology.

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Simulation study on optimization design of structural parameters of 150N-class hydroxylammonium nitrate(HAN)-based thruster

Guo

et al. 2022

Acta Astronautica

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Scaling of catalyst bed for hydrogen peroxide monopropellant thrusters using catalytic decomposition modeling

Cited by 15 publications

References 18 publications

Experimental and Theoretical Studies of HAN and HEHN Pyrolysis at Low Pressure

Experimental and Theoretical Studies of HAN and HEHN Pyrolysis at Low Pressure

Atomistic Insights into the Influence of High Concentration H2O2/H2O on Al Nanoparticles Combustion: ReaxFF Molecules Dynamics Simulation

Simulation study on optimization design of structural parameters of 150N-class hydroxylammonium nitrate(HAN)-based thruster

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