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Process Intensification in pneumatically Agitated Slurry Reactors

Engineering 2021年第3期7卷 304-325页

作者： Shujun Geng Zai-Sha Mao Qingshan Huang Chao Yang Key Llaboratory of Biofues Qingdao Institute of Eioenergy and Bioprocess TednologyChinese ALcadermy of SsciencesQingdao 266101China Dalian Narional Labor atary or dlean Energy Dalian lustitue of chemical PhysitsChinese Academy of SciancesDalian 11623China Key Laboratary of areen Proces and Engireering Iistitue of Poess Eingireeringhinese Academy of SdercesBeijing 100190Ohina

pneumatically agitated slurry reactors,including bubble column reactors and airlift loop reactors(ALRs),are important gas-liquid-solid multiphase *** reactors have been widely applied in many processes,especially in the biological fermentation and energy chemical industry,due to their low shear stress,good mixing,perfect mass-/heat-transfer properties,and relatively low *** further improve the performance of slurry reactors(i.e.,mixing and mass/heat transfer)and to satisfy industrial require-ments(e.g.,temperature control,reduction of back-mixing,and product separation),the process intensi-fication of slurry reactors is *** article starts by reviewing the latest advancements in the intensification of mixing and mass/heat transfer in these two types of *** then summarizes process-intensification methods for mixing and separation that allow continuous production in these slurry ***-intensification technology that integrates directional flow in an ALR with simple solid-liquid separation in a hydrocyclone is recommended for its high efficiency and low *** arti-cle also systematically addresses vital considerations and challenges,including flow regime discrimina-tion,gas spargers,solid particle effects,and other concerns in slurry *** introduces the progress of numerical simulation using computational fluid dynamics(CFD)for the rational design of slurry reactors and discusses difficulties in ***,it presents conclusions and perspectives on the design of industrial slurry reactors.

关键词： Slurry reactors pneumatic agitation Bubble column Airlift loop reactor Process intensification Solid particles

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