Molten salt chemical looping for reactive separation of HBr in a halogen-based natural gas conversion process

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• 作者：D. Chester Upham^a ; Zachary R. Snodgrass^b ; Mojgan Tabatabaei Zavareh^c ; Thomas B. McConnaughy^c ; Michael J. Gordon^b ; Horia Metiu^a ; Eric W. McFarland^b ; ^c ;
• 关键词：Process intensification ; Halogenation ; Methane ; Molten salt ; HBr ; Gas-to-liquids ; Bromine
• 刊名：Chemical Engineering Science
• 出版年：2017
• 出版时间：16 March 2017
• 年：2017
• 卷：160
• 期：Complete
• 页码：245-253
• 全文大小：1697 K
• 卷排序：160

文摘

Metal oxides and bromides were cycled using HBr and O2 at 500 °C. Ni was identified as the best candidate. HBr dissolved in liquid NiBr2-KBr-LiBr salt and reacted with suspended NiO. Supported liquid NiBr2-KBr-LiBr-NiO was cycled between HBr oxidation and Br2 production 25 times. Process modeling indicates a molten salt based process reduces the amount of heat exchanged and the number of separators.