METHOD FOR PRODUCING CARBON NANOTUBES (CNTS) FROM EGG-DERIVED PRECURSORS AND SYSTEM THEREOF

• Main Authors: MOHAN SHARMA, Hari, UBAIDULLAH, Mohd, KUMAR, Anuj, ZHO, Yufeng, MEO, Sultan, ALSHAHRANI, Thamraa, KHALID, Mohdmmad
• Format: Patent
• Language: English
• Published: 14.08.2025
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The present invention generally relates to a method for producing high-quality carbon nanotubes (CNTs) from readily available and cost-effective egg-derived precursors. The system comprises a precursor preparation unit capable of processing egg white and/or yolk into suitable forms for pyrolysis. This unit includes options for dehydration and grinding into powder, hydrothermal treatment for solution-based precursors, and a blender for combining egg white and yolk powders in a controlled ratio to tailor the nitrogen/carbon content of the resulting CNTs. A pyrolysis reactor subjects the precursor to catalytic pyrolysis in an inert atmosphere (e.g., Argon) at temperatures between 900° C. and 1000° C., utilizing an iron (Fe) catalyst. Downstream, a purification unit removes catalyst particles and by-products. A gas flow control system maintains the inert atmosphere within the reactor, ensuring consistent CNT formation. This system offers a sustainable and scalable approach to CNT synthesis, leveraging the unique properties of egg components.