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Hydrothermal conversion of fructose to lactic acid and derivatives:Synergies of metal and acid/base catalysts

Chinese Journal of Chemical Engineering 2023年第1期53卷 381-401页

作者： Tianqi Fang Mengyuan Liu Zhaozhe Li Li Xiong Dongpei Zhang Kexin Meng Xiaolei Qu Guangyu Zhang Xin Jin Chaohe Yang State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of PetroleumQingdao 266580China Sinopec Research Institute of Safety Engineering Qingdao 266580China

With increasing strict regulation on single-use plastics,lactic acid(LA)and alkyl lactates,as essential monomers for bio-degradable polylactic acid(PLA)plastic products,have gained worldwide attention in both academia and *** LA is still dominantly produced through fermentation processes from start,chemical synthesis from cellulosic biomass remains a grand challenge,owing to poor selectivity in activating CAH and CAC bonds in sugar *** our best knowledge,recent publications have been focused on hydrothermal conversion of glucose to LA,while this review summarizes the highlights on direct thermal conversion of fructose as starting material to LA and *** particular,the synergies of metal/metal cations and acid/base catalysts will be critically revised on retro-aldol and dehydration *** work will provide insights into rational design of active and selective catalysts for the production of carboxylic acids from biomass feedstocks.

关键词： Fructose Lactic acid Alkyl lactate thermal conversion

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Development and Regeneration Performance of LaNiO_(3)Perovskite Oxides for Dry Reforming of Methane

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Journal of thermal Science 2023年第5期32卷 1935-1944页

作者： CAO Dingshan LUO Cong CAI Guoqiu LUO Tong WU Fan LI Xiaoshan ZHENG Ying ZHANG Liqi State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Dry reforming of methane(DRM)process has attracted much attention in recent years for the direct conversion of CH_4 and CO_(2)into high-value-added *** key for DRM was to develop catalysts with high activity and *** this study,LaNiO_(3)was prepared by the sol-gel,co-precipitation,and hydro-thermal methods to explore the influence of preparation methods on the catalyst structure and DRM reaction *** regeneration properties of the used LaNiO_(3)catalysts were also investigated under steam,CO_(2),and air atmospheres,*** results showed that LaNiO_(3)prepared by sol-gel method showed the best DRM performance at 750℃.The DRM performance of the samples prepared by hydro-thermal method was inhibited at 750℃due to the residual of Na^(+)ions during the preparation *** regeneration tests showed that none of the three atmospheres could restore LaNiO_(3)perovskite phase in the samples,but they could eliminate the carbon deposits in the samples during the DRM reaction,so the samples could maintain stable DRM performance at different cycling stages.

关键词： dry reforming of methane perovskite LaNiO_(3) CO_(2)utilization thermal conversion

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Advancements in biomass gasification and catalytic tar-cracking technologies

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Materials Reports(Energy) 2024年第4期4卷 1-19,I0001页

作者： Yong-hong Niu Zheng-yang Chi Ming Li Jia-zheng Du Feng-tao Han School of Energy and Environment Inner Mongolia University of Science and TechnologyBaotou014010China College of Mining and Coal Inner Mongolia University of Science and TechnologyBaotou014010China School of Architecture and Energy Engineering Wenzhou University of TechnologyWenzhou325035China

Biomass,heralded as sustainable“green coal”,plays a crucial role in energy conservation and achieving“dual carbon”objectives through clean *** paper reviews advancements in biomass catalytic gasification,a technology pivotal for converting biomass to hydrogen-rich fuel and *** highlights the efficiency gains afforded by various catalysts,including natural minerals,alkali metals,nickel-based compounds,zeolites,and rare earth-modified *** focus is on their influence on hydrogen output,syngas quality,and tar *** synthesis of these insights paves the way for novel catalyst development and optimized gasification processes,hence advancing catalytic gasification technology toward more sustainable energy solutions.

关键词： Biomass gasification Composite catalyst Tar cracking thermal conversion

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