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| 1 | Pressure swing adsorption/membrane hybrid processes for hydrogen purification with a high recovery显示文摘氢用二种混合过程从煤被恢复并且净化生产气化的 syngas:一个压力秋千吸附(PSA ) 膜系统(由一个膜分离单位跟随的一个 PSA 单位) 和一个 membrane-PSA 系统(由一个 PSA 单位跟随的一个膜分离单位) 。PSA 运作的参数被适应控制产品纯净和膜运作的参数被适应控制氢恢复以便两一个纯氢产品(>99.9%) 并且高恢复(>90%) 同时被获得。混合的氢纯化过程用 HYSYS 被模仿,这些过程以氢产品纯净和氢恢复被评估。为比较,一个 PSA 过程和一个膜分离过程也为氢纯化个别地被使用。也不与高恢复处理独自生产的高纯净氢。PSA 膜混合过程生产了是 99.98% 的氢与 91.71% 的恢复纯,而 membrane-PSA 混血儿过程生产了氢,那是 99.99% 与 91.71% 的恢复纯。PSA 膜混合过程在膜分离联合起来的一样的 H 2 恢复下面比 membrane-PSA 混血儿过程完成了更高全部的 H 2 恢复。同时, membrane-PSA 混血儿过程在 PSA 的一样的 H 2 集中比 PSA 膜混合过程(94.35%) 完成了更高全部的 H 2 恢复(97.06%) 喂气体(62.57%) 。 | Baojun Li Gaohong He Xiaobin Jiang Yan Dai Xuehua Ruan | 2016 | Frontiers of Chemical Science and Engineering2016，10，2： | 8 |
| 2 | The control and optimization of macro/micro-structure of ion conductive membranes for energy conversion and storage显示文摘Ion conductive membranes(ICMs)are frequently used as separators for energy conversion and storage technologies of fuel cells,flow battery,and hydrogen pump,because of their good ion-selective conduction and low electronic conductivity.Firstly,this feature article reviews the recent studies on the development of new nonfluorinated ICMs with low cost and their macro/micro-structure control.In general,these new nonfluorinated ICMs have lower conductivity than commercial perfluorinated ones,due to their poor ion transport channels.Increasing ion exchange capacity(IEC)would create more continuous hydrophilic channels,thus enhancing the conductivity.However,high IEC also expands the overall hydrophilic domains,weakens the interaction between polymer chains,enhances the mobility of polymer chains,and eventually induces larger swelling.The micro-scale expansion and macro-scale swelling of the ICMs with high IEC could be controlled by limiting the mobility of polymer chains.Based on this strategy,some ef ficient techniques have been developed,including covalent crosslinking,semi-interpenatrating polymer network,and blending.Secondly,this review introduces the optimization of macro/microstructure of both perfluorinated and nonfluorinated ICMs to improve the performance.Macro-scale multilayer composite is an ef ficient way to enhance the mechanical strength and the dimensional stability of the ICMs,and could also decrease the content of per fluorosulfonic acid resin in the membrane,thereby reducing the cost of the perfluorinated ICMs.Long side chain,multiple functionalization,small molecule inducing micro-phase separation,electrospun nano fiber,and organic–inorganic hybrid could construct more ef ficient ion transport channels,improving the ion conductivity of ICMs. | Xiaoming Yan Wenji Zheng Xuehua Ruan Yu Pan Xuemei Wu Gaohong He | 2016 | Chinese Journal of Chemical Engineering2016，24，5： | 6 |
| 3 | A new long-side-chain sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)(PPO)/polybenzimidazole(PBI)amphoteric membrane for vanadium redox flow battery显示文摘A new amphoteric membrane was prepared by blending long-side-chain sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)(S-L-PPO)and polybenzimidazole(PBI)for vanadium redox flow battery(VRFB)application.An acid-base pair structure formed between the imidazole of PBI and sulfonic acid of S-L-PPO resulted in lowered swelling ratio.It favors to reduce the vanadium permeation.While,the increased sulfonic acid concentration ensured that proton conductivity was still at a high level.As a result,a better balance between the vanadium ion permeation(6.1×10^-9 cm^2·s^-1)and proton conductivity(50.8 m S·cm^-1)in the S-L-PPO/PBI-10%membrane was achieved.The VRFB performance with S-L-PPO/PBI-10%membrane exhibited an EE of 82.7%,which was higher than those of pristine S-L-PPO(81.8%)and Nafion 212(78.0%)at 120 m A·cm^-2.In addition,the S-LPPO/PBI-10%membrane had a much longer self-discharge duration time(142 h)than that of Nafion 212(23 h). | Bowen Jiang Lei Hu Xiaoming Yan Jiahui Sun Li Gao Yan Dai Xuehua Ruan Gaohong He | 2020 | Chinese Journal of Chemical Engineering2020，28，7： | 3 |
| 4 | Rapid solidification and dendrite growth of ternary Fe-Sn-Ge and Cu-Pb-Ge monotectic alloys显示文摘The phase separation and dendrite growth characteristics of ternary Fe-43.9%Sn- 10%Ge and Cu-35.5%Pb-5%Ge monotectic alloys were studied systematically by the glass fluxing method under substantial undercooling conditions. The maximum undercoolings obtained in this work are 245 and 257 K, respectively, for these two alloys. All of the solidified samples exhibit serious macrosegregation, indicating that the homogenous alloy melt is separated into two liquid phases prior to rapid solidification. The solidification structures consist of four phases including α-Fe, (Sn), FeSn and FeSn2 in Fe-43.9%Sn-10%Ge ternary alloy, whereas only (Cu) and (Pb) solid solution phases in Cu-35.5%Pb-5%Ge alloy under different undercool- ings. In the process of rapid monotectic solidification, α-Fe and (Cu) phases grow in a dendritic mode, and the transition 'dendrite→monotectic cell' happens when alloy undercoolings become sufficiently large. The dendrite growth velocities of α-Fe and (Cu) phases are found to increase with undercooling according to an exponential relation. | ZHANG XueHua RUAN Ying WANG WeiLi WEI BingBo | 2007 | Science China(Physics,Mechanics & Astronomy)2007，50，4： | 2 |
| 5 | Solvent-resistant porous membranes using poly(ether−ether ketone): preparation and application显示文摘Poly(ether−ether ketone)(PEEK)is a linear aromatic macromolecule,which can form semi-crystalline aggregative status,allowing PEEK materials to have strong environment tolerance and excellent physicochemical properties.PEEK materials have become a promising alternative to fabricate particular membranes used in extreme conditions.In the past few decades,many researches and evolutions have emerged in membrane fabrication with PEEK materials and its applications for treating organic solvents and their mixtures;however,there are little systematic and comprehensive literature to summarize fabrication approaches,compile applications,and elaborate PEEK property-structure relationship.In this review,the main approaches to fabricate PEEK-based membranes are illustrated concretely,including conventional thermal-induced and non-solvent-induced phase separation,and novel chemical-induced crystallization;the representative applications in ultrafiltration,nanofiltration and membrane contactor containing organic solvents are demonstrated systematically.Meanwhile,the mechanism to tune PEEK solubility in solvents,which can be achieved by altering monomers in synthesis processes or changing membrane preparation routes,is deeply analyzed.Moreover,the existing problems and the future prospects are also discussed.This review provides positive guidance for designing and fabricating membranes using PEEK and its derivative materials for task-specific applications in harsh conditions. | Lixin Xing Jiaming Wang Xuehua Ruan Gaohong He | 2022 | Frontiers of Chemical Science and Engineering2022，16，11： | 1 |
| 6 | Isolated Buck- Boost DC/DC Converters suitable for wide input-voltage range显示文摘 | YAO Chuan RUAN Xinbo WANG Xuehua | 2011 | IEEE Transactions on Power Electronics2011，26，9： | 1 |
| 7 | Multi-technique integration separation frameworks after steam reforming for coal-based hydrogen generation显示文摘Coal-based H2 generation has abruptly increased in recent years.The PSA-VPSA-SC process is the matured and standard framework for H2 purification and CO_(2) capture in many existing plants,including normal and vacuum pressure swing adsorption units in series(PSA-VPSA),and shallow condensation unit(SC).However,this standard process is frequently subjected to low H2 recovery ratio and high purification cost.In this work,H2-selective and C02-selective membrane units,i.e.,HM and CO_(2) M,are attempted to support the standard process and ameliorate constraints.In the beginning,HM unit is arranged after VPSA to enhance H2 recovery from the decarbonized stream,i.e.,the PSA-VPSA-SC/HM process.As a result,H2 recovery ratio can be enhanced significantly from 83%to 98%.In the following,VPSA is replaced with CO_(2) M unit to reduce investment and operation cost,i.e.,the PSA-CO_(2) M-SC/HM process.Accordingly,the specific purification cost is diminished from 33.46 to 32.02 USD·(103 m^(3) H_(2))-1,saved by 4.3%,meanwhile the construction cost is falling back and just a little higher than that for the standard process.In the end,another CO_(2) M unit is launched before PSA,i.e.,the CO_(2) M-PSA-CO_(2) M-SC/HM process,which could unbundle CO_(2) enrichment partially from H2 purification,and then save more investment and operation cost.In comparison with the standard process,this ultimate retrofitted process can be superior in all the three crucial indices,i.e.,recovery ratio,investment,and specific purification cost.On the whole,coal-based H2 generation can be ameliorated significantly through high efficient H2-selective and CO_(2)-selective membrane units. | Xuehua Ruan Wenbo Huo Jiaming Wang Minggang Guo Wenji Zheng Yun Zou Aibin Huang Jianxiang Shou Gaohong He | 2021 | Chinese Journal of Chemical Engineering2021，34，7： | 1 |
| 8 | Isolated Buck-Boost DC-DC converters suitable for wide input-voltage range显示文摘 | Yao Chuan Ruan Xinbo Wang Xuehua | 2011 | IEEE Transactions on Power Electronics2011，26，9： | 1 |
| 9 | Full Feed- forward of Grid Voltage for Grid-connected Inverter with LCL Filter to Suppress Current Distortion Due to Grid Voltage Har- monics 显示文摘 | Wang Xuehua Ruan Xinbo Liu Shangwei | 2010 | IEEE Transactions on Power Electronics2010，25，12： | 1 |
| 10 | Step-by-step controller design for LCL-type grid- connected inverter with capacitor-current-feedback active-damping显示文摘 | Bao Chenlei Ruan Xinbo Wang Xuehua | 2014 | IEEE Transactions on Power Electronics2014，29，3： | 1 |
| 11 | Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation显示文摘煤气的膜分离过程由于交往的非理想的因素是高度无法预言的,例如 composition/pressure-dependent 渗透和真实煤气的行为。尽管分子动态(MD ) 模拟能模仿那些复杂效果,它不能精确由于计算算法的规模限制预言体积性质。这个工作为由把 MD 模拟与免费的卷理论相结合为不稳定的有机化合物为膜分离进程建模建议一个方法。这个方法能避免 MD 方法的按比例增加问题并且精确地模仿膜的表演。小规模 MD 模拟和纯煤气的浸透数据被采用相关为免费的卷理论的压力无关的参数;由这条途径,显微镜的效果能直接被连接到体积性质(非理想的渗透) ,而不是被一条统计途径适合。实验室规模空纤维膜模块为模型确认和评估作好准备。有产品纯净的偏差从 10% 被归结为不到 1% 的试验性的结果表演的模型预言的比较,和 permeate 和残余流动率的偏差显著地从 40% ~ 4% 被减少,显示模型的可靠性。建议方法提供一个有效工具让过程工程模仿膜恢复过程。 | Bo Chen Yan Dai Xuehua Ruan Yuan Xi Gaohong He | 2018 | Frontiers of Chemical Science and Engineering2018，12，2： | 1 |
| 12 | Full feed forward of grid voltage for grid-connected inverter with LCL filter to suppress current distortion due to grid voltage harmonics显示文摘 | Wang Xuehua Ruan Xinbo Liu Shangwei | | 0，，12： | 1 |
| 13 | Full feedforward of grid voltage for grid-connected inverter with LCL filter to suppress current distortion due to grid voltage harmonics 显示文摘 | Wang Xuehua Ruan Xinbo Liu Shang wei | 2010 | Power Electronics IEEE Transac- tions on2010，25，12： | 1 |
| 14 | Full feedforward of grid voltage for grid-connected inverter with LCL filter to suppress current distortion due to grid voltage harmonics显示文摘 | Xuehua Wang Xinbo Ruan Shangwei Liu | 2010 | IEEE Transactions on Power Electronics2010，25，12： | 1 |
| 15 | Optical and Microwave Dielectric Properties of Z n‐Doped M g A l2 O 4 Transparent Ceramics Fabricated by Spark Plasma Sintering显示文摘 | Ping Fu Yong Xu Wenzhong Lu Wen Lei Xuehua Wang Xuefeng Ruan | 2015 | Technol2015，，1： | 1 |
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