Integrating enhanced water-gas shift in system for low carbon hydrogen production

The integration of a sorption enhanced water-gas shift reactor in hydrogen production systems addresses the challenge of low carbon dioxide partial pressures by enhancing hydrogen separation efficiency and thermal management, leading to high-purity hydrogen production with reduced carbon emissions.

AU2024404866A1Pending Publication Date: 2026-07-09TECHNIP ENERGIES FRANCE SAS
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Patent Information

Authority / Receiving Office
AU · AU
Patent Type
Applications
Current Assignee / Owner
TECHNIP ENERGIES FRANCE SAS
Filing Date
2024-12-19
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Existing hydrogen production systems face challenges in generating pure hydrogen streams due to low partial pressures of carbon-based materials, which introduce difficulties in separating hydrogen from carbon dioxide, leading to inefficiencies and increased carbon emissions.

Method used

Integrating a sorption enhanced water-gas shift (SEWGS) reactor into the hydrogen production system, which includes a reforming reactor, water-gas shift reactor, and a sub-system to increase the partial pressure of carbon monoxide and carbon dioxide, followed by a SEWGS reactor to produce a carbon-dioxide-rich and hydrogen-rich product stream, with optional heat recovery and hydrogen separation units.

Benefits of technology

The system enhances hydrogen production efficiency by increasing carbon monoxide and carbon dioxide partial pressures, reducing adsorbent volume requirements, and improving thermal efficiency through heat recovery, resulting in high-purity hydrogen production with reduced carbon emissions.

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Abstract

A system can include a reforming reactor, a water-gas shift (WGS) reactor, a sub-system to increase the partial pressure of carbon monoxide and carbon dioxide, and a sorption enhanced water-gas shift (SEWGS) reactor. The reforming reactor may react a hydrocarbon feed to produce a reformer effluent that includes carbon monoxide and hydrogen. The WGS reactor may receive the reformer effluent and to convert at least a portion of the carbon monoxide to carbon dioxide and hydrogen and produce a shift effluent. The sub-system may increase the partial pressure of carbon monoxide and carbon dioxide in the shift effluent. The SEWGS reactor may receive the shift effluent with the increased partial pressure of carbon monoxide and carbon dioxide and to provide a carbon-dioxide-rich product stream and a hydrogen-rich product stream.
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