Reactor for converting dimethyl ether to hydrogen

EP4598669A1Pending Publication Date: 2025-08-13OBERON FUELS INC
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Patent Information

Application Number
EP2023798557
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-12-09
Filing Date
2023-09-29
Publication Date
2025-08-13

AI Technical Summary

Technical Problem

Conventional hydrogen production methods from hydrocarbon fuels are inefficient, consume excessive energy, produce significant carbon dioxide and NOx emissions, and are not suitable for on-site production at hydrogen fueling stations, requiring costly transportation of hydrogen from production facilities.

Method used

A reactor design that converts dimethyl ether to hydrogen using a catalyst heated by a controlled heat source, optimizing the reaction conditions to achieve high efficiency and minimize emissions, with the reactor capable of producing 50 kg of hydrogen per day or more, utilizing a bifunctional catalyst for efficient dimethyl ether conversion.

Benefits of technology

The reactor achieves high hydrogen conversion efficiency of approximately 97% with reduced emissions and energy consumption, enabling clean, efficient, and cost-effective on-site hydrogen production suitable for mass production and renewable energy integration.

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Abstract

Methods, devices, and systems are described for a reactor for converting dimethyl ether to hydrogen. The reactor includes an outer tube configured to contain heat. The reactor includes an inner tube nested inside the outer tube, the inner tube configured to conduct the heat contained by the outer tube. The inner tube forms a reaction chamber between the first end and the second end of the plurality of inner tube. The reactor includes a feed line coupled to the end of the plurality of inner tube. The feed line may be configured to pass dimethyl ether and steam to the inner tube. The reactor includes a reactor outlet configured to collect hydrogen from the inner tube and output the hydrogen.
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