EP 3894352 A1 20211020 - CATALYTIC METHANE DECOMPOSITION AND CATALYST REGENERATION, METHODS AND USES THEREOF
Title (en)
CATALYTIC METHANE DECOMPOSITION AND CATALYST REGENERATION, METHODS AND USES THEREOF
Title (de)
KATALYTISCHE METHANZERSETZUNG UND KATALYSATORREGENERIERUNG, VERFAHREN UND VERWENDUNGEN DAVON
Title (fr)
DÉCOMPOSITION CATALYTIQUE DE MÉTHANE ET RÉGÉNÉRATION DE CATALYSEUR, LEURS PROCÉDÉS ET UTILISATIONS
Publication
Application
Priority
- PT 2018115211 A 20181214
- IB 2019060868 W 20191216
Abstract (en)
[origin: WO2020121287A1] The present disclosure relates to a low temperature method for the production of pure hydrogen using a methane rich stream as raw material, and to perform in-situ catalyst regeneration. The process involves the decomposition of methane into COx-free hydrogen in an electrochemical/chemical membrane/chemical reactor or chemical fluidised reactor. As the methane decomposition reaction progresses, carbon structures (whiskers) are accumulated at the catalyst surface leading eventually to its deactivation. The catalyst regeneration is achieved using a small fraction of the produced hydrogen to react with carbon formed at the catalyst surface provoking the carbon detachment, thus regenerating the catalyst. This is achieved either by chemical/electrochemical methanation of carbon at the catalyst interface with hydrogen/protons or by rising the temperature of the catalyst, ideally keeping the reactor temperature constant. A single compact device is described, enabling the hydrogen production, hydrogen purification and catalyst regeneration.
IPC 8 full level
C01B 3/26 (2006.01); B01J 29/90 (2006.01); B01J 38/10 (2006.01); C01B 3/30 (2006.01); C01B 32/00 (2017.01)
CPC (source: EP)
C01B 3/26 (2013.01); C01B 3/30 (2013.01); C01B 32/05 (2017.07); C01B 2203/0277 (2013.01); C01B 2203/1047 (2013.01); C01B 2203/1058 (2013.01); C01B 2203/1082 (2013.01); C01B 2203/1241 (2013.01); C01B 2203/80 (2013.01); Y02P 20/584 (2015.11)
Citation (search report)
See references of WO 2020121287A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
IB 2019060868 W 20191216; EP 19849002 A 20191216