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Microencapsulation of hydrocarbon fuels for monopropellant creation with hydrogen peroxide

Scholl, Robin and Freudenmann, Dominic and Schlechtriem, Stefan (2023) Microencapsulation of hydrocarbon fuels for monopropellant creation with hydrogen peroxide. Fuel – The Science and Technology of Fuel and Energy, 356, p. 129520. Elsevier. doi: 10.1016/j.fuel.2023.129520. ISSN 0016-2361.

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0016236123021348?via%3Dihub


Monopropellant systems are used in rocket engines when high reliability and low technical complexity is demanded. However, they usually have lower specific impulses compared to bipropellants. A mixture of oxidizer and fuel from typical bipropellant systems is generally difficult to convert into a monopropellant as they are normally immiscible and would constitute a potentially explosive mixture. Microencapsulation of one of the two components of a bipropellant could be a possible way to create an insensitive mixture of the two substances together in the same tank while creating a monopropellant. This approach would bring together the advantages of both monopropellant and bipropellant, a high specific impulse combined with low technical complexity. In this work we present a new concept of microencapsulated hydrocarbon fuels for the creation of a monopropellant with hydrogen peroxide as green oxidizer component. Hydrocarbon filled microcapsules were synthesized by interfacial polymerization and analyzed by thermogravimetry, optical and electron microscopy as well as infrared spectroscopy. Additionally, the compatibility of the polyamide capsule wall with rocket grade hydrogen peroxide (up to 98%) and vice versa was studied and was found to be suitable.

Item URL in elib:https://elib.dlr.de/197120/
Document Type:Article
Title:Microencapsulation of hydrocarbon fuels for monopropellant creation with hydrogen peroxide
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Scholl, RobinUNSPECIFIEDhttps://orcid.org/0000-0002-2427-8002UNSPECIFIED
Freudenmann, DominicUNSPECIFIEDhttps://orcid.org/0000-0003-4027-8878UNSPECIFIED
Schlechtriem, StefanUNSPECIFIEDhttps://orcid.org/0000-0002-3714-9664UNSPECIFIED
Date:29 August 2023
Journal or Publication Title:Fuel – The Science and Technology of Fuel and Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 129520
Keywords:Hydrogen peroxide, Microencapsulation, Interfacial polymerization, Monopropellant, Green propellant
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Project Future Fuels - Advanced Rocket Propellants
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Chemical Propellant Technology
Deposited By: Scholl, Robin
Deposited On:20 Sep 2023 15:20
Last Modified:29 Jan 2024 12:28

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