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Ascent Project
4 - Sorption enhanced reforming looping cycle

The main objective of this work package is to demonstrate, through material development and prototype testing at industrially relevant conditions, the technological and economic potential of novel high performance CaO-based solid materials combining a high temperature CO2 sorbent and a reforming catalyst on the same support, for high efficiency pre-combustion CO2 capture via a Sorption-Enhanced Refhorming process (SER) using a fluidized bed reactor system.

After an initial period of the ASCENT project focused on the screening of the suitable material for Sorption Enhanced Reforming (SER) process, the ASCENT project has now selected a promising sorbent material (HydroSORB) and tested in severe regeneration condition at lab condition. This material has been produced at a size suitable for running SER process with methane reforming catalyst in fluidised bed test rigs. Along with HydroSORB material, combined sorbent-catalyst materials (CSCM) has been also selected for preliminary proof-of-concept of the SER process. The materials have been developed with the objective of meeting the performance criteria for the relevant SER process conditions defined in the first period of the project. The aim of the detailed characterisation work was to strengthen our material knowledge and understanding, and to identify areas for further final optimisation before the final proof-of-concept testing. For the production of CSCMs, both a commercial reforming catalyst (HT-catalyst) and a new developed catalyst (NiM-catalyst) have been used. The new reforming catalyst uses, like the HydrSORB material, a mayenite support (Ca12Al14O33). The NiM-catalyst powder is produced by incipient impregnation of a mayenite powder obtained by hydrothermal synthesis. The production methods have been developed in close collaboration between the material developers (research institutions: IFE, CSIC, UNIVAQ, ENEA) and the work package material producer/supplier Marion Technologies (MTEC) to insure that materials could be reproduced following the same aligned production methods and that the methods could be up-scaled without altering the materials performance.

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Links to the scientific papers produced in ASCENT project:

  1. High performance CaO-based sorbents for pre- and postcombustion CO2 capture at high temperature
  2. Sustainable Hydrogen Production from Biogas Using Sorption-Enhanced Reforming
  3. Hydrogen by sorption enhaced methane reforming: A grain model to study the behavior of bifuncional sorbent-catalyst particles
  4. Sorption enhanced steam methane reforming by Ni–CaO materials supported on mayenite
  5. Sorption enhanced catalytic Steam Methane Reforming: Experimental data and simulations describing the behaviour of bi-functional particles
  6. Development of Cost Effective and High Performance Composite for CO2 Capture in Ca-Cu Looping Process
Fully automated rig for testing SER at the UNIVAQ laboratory High shear granulator used for production of proof of concept granulated materials SER Proof-of-concept at the IFE laboratory

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The research leading to these results has received funding from the European Union Seventh Framework Programme  FP7 under grant agreement n° 608512