金属-有机骨架在烷烃／烯烃分离中节约能源

6中国材料进展第31卷Y2SiOs[J]. Journal of Europan Ceramic Sociey, 2009, 29:(任卫), etal. 前驱体法制备氮化硼纤维的研究进展551 - 557.[J]. Adeanced Ceramics(现代技术陶瓷)，2004, 25(1):[11] SunZQ, WangJ Y, Li MS, et al. Mcchanical Properties and21 -25Damage Tolerance of Y2 SiO,[J]. Jounal of European Ceramic[20] Han Guifang(韩桂芳)，Zhang Litong(张立同)，Cheng LaifeiSociety, 2008, 28: 2895 -2 901.(成来飞)，eal.二维石英纤维增强多孔SiN,-Si02基复[12] SunZQ, Zhou Y C, WangJ Y, et al. Thermal Properties and合材料的制备及其力学性能[J]. Acta Materiae CompositaeThermal Shock Resistance of γ-Y2Si2O[J]. Am Ceram, 2008,Sinica(复合材料学报)，2007, 24(1): 91-96.91(8): 2623-2 629.[21] Wang Siqing(王思青)，2hang Changrui(张长瑞)，Cao Feng[13] SunZQ, ZhouY C, WangJ Y, etal. y-Y2Si2O, a Machin-(曹峰)，etal.先驱体浸渍裂解法制备三维编织石英纤able Silicate Cerarmics: Mechanical Propeties and Machinability维/氮化物复合材料[J]. Rare Metal Materials and Engineering[]]. Am Ceram Soe, 2007 , 98(8): 2535-2541.(稀有金属材料与工程), 2007, 36(Suppl. 1): 615 -618.[14] TongQF, WangJ Y, LiZP, et al. Low-Temperature Synthe- [22 ] Godend K E. The Prediction and Measure of Dieletrie Proper-sis/Densification and Properties of Sin N20 Prepared with Li2Otics and RF Trasmission through Ablating BN Antenna W indowsAdditive[ J]. Journal of European Ceramic Society, 2007, 27: 4 :[C]//AIAA -81 - 1085, AIAA 16 Thermophysical Confer-767 -4772.enee. Califomia: Palo Alto, 1981: 23 - 25.[15] Gilreath M C, Castellows L. High Temperature Dieletrie Proper~[23] J ARNOLD, L. T. HANAWA, Plasma ARC Test Technique fories of Candidate Space-Shuttle Thermal Protection System andEvaluating Antenna W indow RF Transmission Performance [ R].Antenna- W indow Material [R]. NASA TND-7523. Washington:Washington D C: American Institute of Aeronautics and AstroNASA, 1974: 1 -53.nautics, AIAA -82 -0900，1982: 138- 144.[16] BrazelJ P, Fenton R. ADL4D: A Silica/Silia Composite for[24] Cao Jiang(曹 江).介质材料电磁参数测量综述[J]. Jour-Hardened Antenna Windows[ C]. Georgia Institute of Technology:nal of Astronauie Merology and Measurement(宇航计测技术)，Proceedings of the 13h Symposiumon Electro-Magnetic Windows,1994，13(3): 30-34.1976.[25] Gregory A P, Ezel s, Clarke R N. Precise Measurements on[17] Hu Liancheng(胡连成)，Li Yi(黎 义), Yu Qiao(于Dielectric Reference Liquids Over the Temperature Range5 - 50/翘)，etal.俄罗斯航天透波材料现状考察[]. Aerospacespl deg/C Using Coaxial Line Methods[ C]. Conference onMaterials & Technologr(宇航材料工艺), 1994, 24(1):48 -52.Precision Electromagnetie Measurements Digest: 2000: 455[18] J Econony， Exploratory development on formation of high- 456.strength, high modulus boron nitide continuous filament yarns[26 ] Baker.Jarvis J, Janezic M, Riddle B, et al. Dielectrie and Con-[R]. AD -901949. 1972.ductor- Loss Characterization and Measurements on Electronie[19] Zhang Mingxia(张铭霞)，Cheng Zhiqiang(程之强)，Ren WeiPackaging Material[ C]. NIST Technical Note 1520, 2001.金属-有机骨架在烷烃/烯烃分离中节约能源.塑料行业需要大量的纯的乙烯和丙烯来生产聚(乙烯)和聚(丙烯)。但这些化合物必须从原油在500-600C派生出来的烃类混合物中分离。烷烃/烯烃混合物(如丙烷/丙烯)的分离是通过将混合物冷却至- 100 C，随后进行低温精馏实现的，此过程需要巨大的能量输人。为了有效节省能源，加州大学伯克利分校以及国家标准与技术研究院(NIST)的研究人员在Jffrey R. Long 的领导下，已经开发出一种金属-有机骨架( MOF)材料，能在较高的温度下进行分离操作。铁(1I)金属-有机骨架(MOF)可以在318K从丙烯中分离丙烷，因为铁(II)协调区域选择性地吸附烯烃化合物的碳-碳双键。《科学》杂志报道指出，当量分子的丙烷/丙烯混合物在318K流经金属-有机骨架时，在出口处产生的丙烷均被铁( I)吸附;对于乙烷/乙二醇混合物也获得类似的结果。金属-有机骨架解吸烯烃后，还可进行重复的分离操作。(摘译自《MRS Materials Bulletin》 )