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| 1 | 直馏蜡油掺炼劣质原料全循环加氢裂化工艺研究显示文摘采用全循环加氢裂化工艺处理直馏蜡油混兑焦化蜡油与催化柴油的混合劣质加氢原料,考查不同转化深度对产物分布与产品质量的影响。研究结果表明:全循环加氢裂化工艺可实现灵活生产柴油与航空煤油的生产目标。在最大量生产柴油的方案下,柴油产品收率为80%,十六烷指数可保持在58以上;在最大量生产航空煤油的方案下,合格航空煤油产品收率可达46%,副产柴油的十六烷指数高达79。 | 范思强 王仲义 曹正凯 孙士可 吴子明 | 2021 | 石油与天然气化工2021，50，5： | 5 |
| 2 | Postsynthesis of hierarchical core/shell ZSM-5 as an efficient catalyst in ketalation and acetalization reactions显示文摘Hierarchical core/shell Zeolite Socony Mobil-five(ZSM-5)zeolite was hydrothermally postsythesized in the solution of NaOH and diammonium surfactant via a dissolution-reassembly strategy.The silica and alumina species were firstly dissolved partially from the bulky ZSM-5 crystals and then were reassembled into the MFI-type nanosheets with the structure-directing effect of diammonium surfactant,attaching to the out-surface of ZSM-5 core crystals.The mesopores thus were generated in both the core and shell part,giving rise to a micropore/mesopore composite material.The micropore volume and the acidity of the resultant hybrid were well-preserved during this recrystallization process.Possessing the multiple mesopores and enlarged external surface area,the core/shell ZSM-5 zeolite exhibited higher activity in the ketalation and acetalization reactions involving bulky molecules in comparison to the pristine ZSM-5. | Peng Luo Yejun Guan Hao Xu Mingyuan He Peng Wu | 2020 | Frontiers of Chemical Science and Engineering2020，14，2： | 3 |
| 3 | 新型非常规天然气直接催化转化制芳烃催化剂的研究显示文摘近年来,常规天然气供应紧张,因此非常规天然气的开发利用显得尤为重要。甲烷无氧芳构化作为非常规天然气的直接转化方式之一,由于其工艺流程简单、芳烃选择性集中、产物附加值高等特点,一直受到广大科研工作者的关注。为提高甲烷转化率及甲苯和二甲苯等产物的选择性,通过一步浸渍法制备了0.189%Mg/8%Mo/HZSM-5(以质量分数计)催化剂,在700℃、101 kPa条件下通过将甲烷无氧芳构化反应与芳烃烷基化反应耦合,其中甲醇作为烷基化试剂与甲烷以共进料的方式进入反应体系,将甲烷的转化率提升至27.45%、甲苯和二甲苯的选择性分别达到28.29%和24.65%,并且8 h内催化剂未出现活性减弱,实现了反应的高效稳定运行。 | 刘志开 曹辉 王天云 韩国栋 刘意 张燚 | 2019 | 无机盐工业2019，51，12： | 2 |
| 4 | 探索合适的正十二烷催化裂解用ZSM-5/MCM-41:初始晶粒尺寸和Si/Al的影响(英文)显示文摘In this study,various ZSM-5/MCM-41 micro/mesoporous zeolite composites have been prepared by alkalidesilication and surfactant-directed recrystallization of ZSM-5.The effects of particle size and Si/Al ratio of initial ZSM-5 zeolites on the structure and catalytic performance of ZSM-5/MCM-41 composites are studied.The results of XRD,TEM N_2-adsorption-desorption,NH_3-TPD and in situ FT-IR revealed that ordered hexagonal MCM-41 mesopores with 3-4 nm pore size were formed around ZSM-5 crystals,and the specific surface area and mesopore volume of composites increased with increasing the Si/Al ratio of initial ZSM-5.Catalytic cracking of n-dodecane(550℃,4 MPa) showed that the ZSM-5/MCM-41 composites obtained from the high Si/Al ratio and nano-sized initial ZSM-5 zeolites exhibited superior catalytic performance,with the improvement higher than 87%in the catalytic activities and 21%in the deactivation rate compared with untreated zeolites.This could be ascribed to their suitable pore structure,which enhanced the diffusion of reactant molecules in pores of catalysts. | 李国柱 刁振恒 那金丹 王莅 | 2015 | Chinese Journal of Chemical Engineering2015，23，10： | 1 |
| 5 | 双介孔锆铝材料的一步法制备及表征显示文摘采用月桂酸为模板剂,ZrOCl_2为锆源、仲丁醇铝为铝源,利用ZrOCl_2水溶液进行水解,一步法制备了双介孔锆铝材料。采用XRD、N_2吸附-脱附和电子透射电镜(TEM)对样品进行表征。结果表明,该材料具有ZrO_2-AlO_2面心立方晶相结构和有序的双介孔孔道,较小介孔集中分布于3.5nm,较大介孔的集中分布性差,分布在12.7nm左右,其比表面积和孔容分别为379.71m^2/g和0.616cm^3/g。 | 黄一峰 杨丽娜 白金 李剑 | 2018 | 天然气化工—C1化学与化工2018，43，3： | 0 |
| 6 | Fabrication and catalytic performance of meso-ZSM-5 zeolite encapsulated ferric oxide nanoparticles for phenol hydroxylation显示文摘An encapsulation-structured Fe_(2)O_(3)@mesoZSM-5(Fe@MZ5)was fabricated by confining Fe_(2)O_(3) nanoparticles(ca.4 nm)within the ordered mesopores of hierarchical ZSM-5 zeolite(meso-ZSM-5),with ferric oleate and amphiphilic organosilane as the iron source and meso-porogen,respectively.For comparison,catalysts with Fe_(2)O_(3)(ca.12 nm)encapsulated in intra-crystal holes of meso-ZSM-5 and with MCM-41 or ZSM-5 phase as the shell were also prepared via sequential desilication and recrystallization at different pH values and temperatures.Catalytic phenol hydroxylation performance of the as-prepared catalysts using H_(2)O_(2) as oxidant was compared.Among the encapsulation-structured catalysts,Fe@MZ5 showed the highest phenol conversion and hydroquinone selectivity,which were enhanced by two times compared to the Fe-oxide impregnated ZSM-5(Fe/Z5).Moreover,the Fe-leaching amount of Fe@MZ5 was only 3% of that for Fe/Z5.The influence of reaction parameters,reusability,and ·OH scavenging ability of the catalysts were also investigated.Based on the above results,the structure-performance relationship of these new catalysts was preliminarily described. | Zhenheng Diao Lushi Cheng Wen Guo Xu Hou Pengfei Zheng Qiuyueming Zhou | 2021 | Frontiers of Chemical Science and Engineering2021，15，3： | 0 |
| 7 | The effect of hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios on its pore structure and catalytic performance显示文摘Hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios(Hier-ZSM-5-x,where x=50,100,150 and 200)were synthesized using an ordered mesoporous carbon-silica composite as hard template.Hier-ZSM-5-x exhibits improved mass transport properties,excellent mechanical and hydrothermal stability,and higher catalytic activity than commercial bulk zeolites in the benzyl alcohol self-etherification reaction.Results show that a decrease in the Si/Al ratio in hierarchical single-crystal ZSM-5 zeolites leads to a significant increase in the acidity and the density of micropores,which increases the final catalytic conversion.The effect of porous hierarchy on the diffusion of active sites and the final catalytic activity was also studied by comparing the catalytic conversion after selectively designed poisoned acid sites.These poisoned Hier-ZSM-5-x shows much higher catalytic conversion than the poisoned commercial ZSM-5 zeolite,which indicates that the numerous intracrystalline mesopores significantly reduce the diffusion path of the reactant,leading to the faster diffusion inside the zeolite to contact with the acid sites in the micropores predominating in ZSM-5 zeolites.This study can be extended to develop a series of hierarchical single-crystal zeolites with expected catalytic performance. | Yuexin Hou Xiaoyun Li Minghui Sun Chaofan Li Syed ul Hasnain Bakhtiar Kunhao Lei Shen Yu Zhao Wang Zhiyi Hu Lihua Chen Bao-Lian Su | 2021 | Frontiers of Chemical Science and Engineering2021，15，2： | 0 |
| 8 | Steps of fronts in chemical engineering:An overview of the publications of FCSE显示文摘The fronts of a subject could be perceived from the publications of top journals.We investigated four top journals on chemical engineering:AIChE Journal,Chemical Engineering Science,Industrial & Engineering Chemistry Research and Chemical Engineering Journal.Based on Web of Science,in the last five years,these four journals have published 21062papers,including 590highly cited papers and 31'hot'papers among which only 7are from Industrial &Engineering Chemistry Research and all the others from Chemical Engineering Journal (data obtained on November 17,2018).The traditional research 'Pure and pseudo-pure fluid thermophysical property evaluation and the open-source thermophysical property library CoolProp'is the most cited paper published in 2014[1].Both highly cited and 'hot'papers were published in 2017on electrodes of supercapacitors [2].But researches on environmental science and engineering have been paid most attention with 17of 27both highly cited and 'hot' papers on this research area.The most cited and 'hottest'paper is 'Boron nitride-based materials for the removal of pollutants from aqueous solutions:A review'in 2018[3]. Over the past decades,research and technologies advancement in chemical science and engineering in China has expanded in a lightning speed globally. | Xiaowen Zhu Yaodong Huang Jing-Kang Wang | 2018 | Frontiers of Chemical Science and Engineering2018，12，4： | 0 |
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