Method and apparatus for generating a hydrogen-rich combustible gas
An integrated process with upstream treatment and CO2 capture optimizes hydrogen production and emission reduction by using membrane separation to produce a hydrogen-rich gas, addressing inefficiencies in steam reforming.
FR3166628A1Pending Publication Date: 2026-03-27LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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Patent Information
- Application Number
- FR2024010173
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2026-03-27
AI Technical Summary
Technical Problem
Existing hydrogen production methods from steam reforming face challenges in reducing CO2 emissions and hydrogen production inefficiencies, particularly when additional hydrogen production cannot be sold or emission reductions are insufficient.
Method used
An integrated process involving upstream treatment, membrane separation, and CO2 capture units to produce a hydrogen-rich gas, reducing water content, and optimizing hydrogen and CO2 separation, allowing for flexible hydrogen production and enhanced emission reduction.
Benefits of technology
The process increases hydrogen production by 15% and reduces CO2 emissions by up to 75%, minimizing natural gas consumption and enabling independent modulation of hydrogen production.
✦ Generated by Eureka AI based on patent content.
Abstract
Title of the invention: Method and apparatus for generating a hydrogen-rich combustible gas. An apparatus for producing hydrogen and combustible gas includes means for dividing a flow of gas containing hydrogen and CO2 to form a first and a second portion (P1, P2), a membrane separation unit (M), means for sending the first portion of the heated gas to the membrane separation unit, generating a permeate (P) enriched in H2 and depleted in CO2 relative to the heated gas and containing at least 90 mol% or even at least 95 mol% hydrogen and a residue (R) enriched in CO2 and depleted in hydrogen relative to the heated gas, means for sending the permeate to a combustible gas network, means for mixing the residue with the second portion of the heated gas which is not separated in the membrane separation unit, a pre-separation adsorption (PSA) unit.means for sending the mixture to the adsorption separation unit, generating a gas (H) enriched in hydrogen and depleted in CO2 relative to the heated gas and a residual gas (O) enriched in CO2 and depleted in hydrogen relative to the heated gas, a CO2 capture unit (CC), means for sending the residual gas to separate in the capture unit to generate a stream rich in pure CO2, a gas rich in hydrogen and a gas poor in CO2 and hydrogen, means for sending the hydrogen-rich gas to separate by adsorption in the adsorption unit and means for sending the gas poor in CO2 and hydrogen (RES) to the combustible gas network mixed with the permeate. FIG. 1,
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