一锅法制备铋基催化剂在乙炔氢氯化反应中催化性能的研究(英文)Catalytic Properties of Bi-based Catalysts Prepared Using One Pot Method for Acetylene Hydrochlorination
漆维霞,王璐,王丰,王吉德
摘要(Abstract):
本文采用一锅法(PM)和等体积浸渍法(IM)制备了铋基催化剂并考察了PM的制备条件对催化剂的影响.使用固定床反应器对催化剂进行评价.结果显示,PM催化剂具有较好的催化活性,此时的制备条件如下:反应温度为160?C,反应时间为2 h.对催化剂进行XRD,BET,EDS和SEM等表征,结果表明,PM催化剂具有微球形貌,提供丰富的孔道结构,较大的比表面积和更多的活性位点,改善了催化剂的催化性能.除此之外,反应中积碳可能是导致铋基催化剂失活的一个原因.
关键词(KeyWords): 一锅法;铋基催化剂;乙炔氢氯化
基金项目(Foundation): Natural Scientific Foundation of China(21263025,U1403293)
作者(Author): 漆维霞,王璐,王丰,王吉德
DOI: 10.13568/j.cnki.651094.2017.02.001
参考文献(References):
- [1]Yoshioka T,Kameda T,Imai S,et al.Dechlorination of poly(vinyl chloride)using Na OH in ethylene glycol under atmospheric pressure[J].Polym Degrad Stab,2008,93(6):1138-1141.
- [2]Wei X,Shi H,Qian W,et al.Gas-phase catalytic hydrochlorination of acetylene in a two-stage fluidized-bed reactor[J].Ind Eng Chem Res,2008,48(1):128-133.
- [3]Conte M,Davies C J,Morgan D J,et al.Modifications of the metal and support during the deactivation and regeneration of Au/C catalysts for the hydrochlorination of acetylene[J].Catalysis Science&Technology,2013,3(1):128-134.
- [4]Zhang J L,Liu N,Li W,et al.Progress on cleaner production of vinyl chloride monomers over non-mercury catalysts[J].Frontiers of Chemical Science and Engineering,2011,5(4):514-520.
- [5]Hutchings G J,Grady D T.Hydrochlorination of acetylene:The effect of mercuric chloride concentration on catalyst life[J].Appl Catal,1985,17(1):155-160.
- [6]Zhang J L,He Z H,Li W,et al.Deactivation mechanism of Au Cl 3 catalyst in acetylene hydrochlorination reaction:a DFT study[J].Rsc Advances,2012,2(11):4814-4821.
- [7]Wang L,Wang F,Wang J D.Non-mercury catalytic acetylene hydrochlorination over a NH4F–urea-modified Pd/HY catalyst for vinyl chloride monomer production[J].New J Chem,2016,40(4):3019-3023.
- [8]Tiruvalam R C,Pritchard J C,Dimitratos N,et al.Aberration corrected analytical electron microscopy studies of sol-immobilized Au+Pd,Au{Pd}and Pd{Au}catalysts used for benzyl alcohol oxidation and hydrogen peroxide production[J].Faraday Discuss,2011,152:63-86.
- [9]Mitchenko S A,Krasnyakova T V,Mitchenko R S,et al.Acetylene catalytic hydrochlorination over powder catalyst prepared by pre-milling of K2Pt Cl4salt[J].J Mol Catal A Chem,2007,275(1):101-108.
- [10]Pu Y F,Zhang J L,Yu L,et al.Active ruthenium species in acetylene hydrochlorination[J].Appl Catal A,2014,488:28-36.
- [11]Zhang H Y,Li W,Jin Y H,et al.Ru-Co(III)-Cu(II)/SAC catalyst for acetylene hydrochlorination[J].Appl Catal,B,2016,189:56-64.
- [12]Zhou K,Si J K,Jia J C,et al.Reactivity enhancement of N-CNTs in green catalysis of C2H2hydrochlorination by a Cu catalyst[J].RSC Advances,2014,4(15):7766-7769.
- [13]Zhou K,Jia J C,Li X G,et al.Continuous vinyl chloride monomer production by acetylene hydrochlorination on Hg-free bismuth catalyst:From lab-scale catalyst characterization,catalytic evaluation to a pilot-scale trial by circulating regeneration in coupled fluidized beds[J].Fuel Process Technol,2013,108:12-18.
- [14]Wang F,Zhu P Y,Wang J D,Activated Carbon-Supported Bismuth Non-Mercuric Catalyst for Acetylene Hydrochlorination[J].Chemistry,2014,77(9):909-912.
- [15]李士伟.水蒸汽法再生乙炔氢氯化铋基无汞催化剂的研究[D].乌鲁木齐:新疆大学,2015
- [16]Peng H L,Chan C K,Meister S,et al.Shape evolution of layer-structured bismuth oxychloride nanostructures via low-temperature chemical vapor transport[J].Chem Mater,2008,21(2):247-252.
- [17]Yu J H,Wei B,Zhu L,et al.Flowerlike C-doped Bi OCl nanostructures:facile wet chemical fabrication and enhanced UV photocatalytic properties[J].Appl Surf Sci,2013,284:497-502.
- [18]Zhang X,Ai Z H,Jia F L,et al.Generalized one-pot synthesis,characterization,and photocatalytic activity of hierarchical Bi OX(X=Cl,Br,I)nanoplate microspheres[J].The Journal of Physical Chemistry C,2008,112(3):747-753.
- [19]Zhang X,Wang X B,Wang L W,et al.Synthesis of a highly efficient Bi OCl single-crystal nanodisk photocatalyst with exposing{001}facets[J].ACS Appl Mat Interfaces,2014,6(10):7766-7772.
- [20]Zhu L P,Liao G H,Bing N C,et al.Self-assembled 3D Bi OCl hierarchitectures:tunable synthesis and characterization[J].Cryst Eng Comm,2010,12(11):3791-3796.
- [21]Cui Z K,Mi L W,Zeng D W.Oriented attachment growth of Bi OCl nanosheets with exposed{110}facets and photocatalytic activity of the hierarchical nanostructures[J].J Alloys Compd,2013,549:70-76.
- [22]Li G B,Li W,Zhang J L.Strontium promoted activated carbon-supported gold catalysts for non-mercury catalytic acetylene hydrochlorination[J].Catalysis Science&Technology,2016,6(9):3230-3237.
- [23]Du Y F,Hu R S,Jia Y,et al.Cu Cl2promoted low-gold-content Au/C catalyst for acetylene hydrochlorination prepared by ultrasonic-assisted impregnation[J].J Ind Eng Chem,2016,37:32-41.
- [24]Ma W,Jacobs G,Graham U M,et al.Fischer–Tropsch Synthesis:Effect of K Loading on the Water–Gas Shift Reaction and Liquid Hydrocarbon Formation Rate over Precipitated Iron Catalysts[J].Top Catal,2014,57(6-9):561-571.
- [25]Wang L,Wang F,Wang J D.Catalytic properties of Pd/HY catalysts modified with NH4F for acetylene hydrochlorination[J].Catal Commun,2015,65:41-45.