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1. (WO2017148929) LOW STEAM/CARBON REVAMP OF A PLANT COMPRISING A STEAM REFORMING SECTION AND A WATER-GAS SHIFT SECTION

Pub. No.:    WO/2017/148929    International Application No.:    PCT/EP2017/054618
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: C01B 3/48
Applicants: HALDOR TOPSØE A/S
Inventors: ROSTRUP-NIELSEN, Thomas
SCHJØDT, Niels Christian
SPETH, Christian Henrik
KRØLL JENSEN, Annette E.
Title: LOW STEAM/CARBON REVAMP OF A PLANT COMPRISING A STEAM REFORMING SECTION AND A WATER-GAS SHIFT SECTION
Abstract:
The present invention relates to a revamp method for increasing the front-end capacity of a plant comprising - a reforming section, wherein a feed is reformed in at least one reforming step to - a reformed stream comprising CH4, CO, CO2, H2 and H2O - a shift section wherein the reformed stream is shifted in a shift reaction in at least a high temperature shift step, said method comprising the steps of - In the High temperature shift step exchanging an original Fe-based catalyst with a non-Fe-based catalyst - Increasing the feed flow to the reforming section, and - The HTS step is carried out at a reduced steam/dry-gas ratio (S/DG) compared to an original S/DG in the original HTS step with the original Fe-based catalyst.