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Synthesis, characterization and industrial applicability of combined sorbent-catalyst materials for sorption enhanced steam methane reforming

Abstract : Sorption enhanced steam methane reforming (SESMR), steam methane reforming (SMR) with in situ CO2 sorption by a solid sorbent, can lead to a sustainable exploitation of natural gas to produce H2. (CSCM). This thesis, as a part of ASCENT (Advanced Solid Cycles with Efficient Novel Technologies) project, deals with Ni-CaO-mayenite combined sorbent-catalyst material for SESMR, to study the effect of Ni fraction, its precursor salt (Ni nitrate or Ni acetate), and free CaO fraction. ICP AES, XRD, BET and BJH methods, SEM EDS, TEM EDS, TPR and TGA were used to characterize synthesized materials. Their reactivity was evaluated by tests in a packed bed microreactor, which served also as a screening tool to choose the most promising materials. Their industrial applicability was assessed by multicycle SESMR/regeneration tests in an automated packed bed bench scale rig.
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Submitted on : Friday, October 26, 2018 - 10:59:07 AM
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Andrea Di Giuliano. Synthesis, characterization and industrial applicability of combined sorbent-catalyst materials for sorption enhanced steam methane reforming. Catalysis. Université de Strasbourg; Università degli studi (L'Aquila, Italie), 2017. English. ⟨NNT : 2017STRAF065⟩. ⟨tel-01905820⟩

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