Patent · US Active

Catalyst for MWCNT production

US12239962B2 · kind B2 · utility

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8Claims

0Family size

Assignee

NANOCYL SA · BE

Inventors

Fang-Yue Chan · Achêne, BE
Matthieu Houlle · Wépion, BE
Jean-Philippe JORIS · Etterbeek, BE

Key dates

Filing date	Oct 30, 2023
Grant date	Mar 4, 2025
Priority date	—
Expiry date	Oct 30, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B2202/22
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An iron-free supported catalyst for the selective conversion of hydrocarbons to carbon nanotubes may include cobalt and vanadium as active catalytic metals in any oxidation state on a catalyst support comprising aluminum oxide hydroxide. The mass ratio of cobalt to vanadium is between 2 and 15; the mass ratio of cobalt to aluminum is between 5.8×10−2 and 5.8×10−1; and the mass ratio vanadium to aluminum is between 5.8×10−3 and 8.7×10−2. The present disclosure is further related to a method for the production of this iron-free supported catalyst and to a method for the production of carbon nanotubes using the iron-free supported catalyst.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.