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Updated: Jan 27, 2026

Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
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Direct Non-Oxidative Methane Conversion in a Millisecond Catalytic Wall Reactor.

Su Cheun Oh1, Emily Schulman1, Junyan Zhang1

  • 1Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.

Angewandte Chemie (International Ed. in English)
|March 20, 2019
PubMed
Summary

Direct non-oxidative methane conversion (DNMC) using a millisecond catalytic wall reactor achieves stable production of olefins and hydrocarbons. This innovative approach overcomes challenges of high temperatures and catalyst deactivation, proving technoeconomically viable.

Keywords:
heterogeneous catalysisironmethane conversionnatural gassupported catalysts

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Area of Science:

  • Chemical Engineering
  • Catalysis
  • Reaction Engineering

Background:

  • Direct non-oxidative methane conversion (DNMC) offers a single-step route to valuable olefins and hydrocarbons.
  • Key challenges include high reaction temperatures and catalyst deactivation due to coking.
  • Existing methods struggle with endothermic reaction conditions and catalyst stability.

Purpose of the Study:

  • To investigate a millisecond catalytic wall reactor for stable and efficient direct non-oxidative methane conversion.
  • To address the limitations of high temperature and low catalyst durability in DNMC.
  • To explore process optimization for selective production of C2+ or aromatic products.

Main Methods:

  • Utilized a millisecond catalytic wall reactor for DNMC experiments.
  • Investigated effects of varying temperatures and gas flow rates.
  • Employed process simulation using Aspen Plus for technoeconomic analysis.

Main Results:

  • Achieved stable methane conversion, C2+ selectivity, and long-term catalyst durability.
  • Demonstrated that DNMC initiation occurs on the reactor wall, sustained by gas-phase chemistry.
  • Process simulation indicated high carbon and thermal efficiencies with low material costs.

Conclusions:

  • The millisecond catalytic wall reactor effectively overcomes major challenges in DNMC.
  • The reactor design enables stable operation and tunable product selectivity.
  • The technology shows significant technoeconomic viability for industrial application.