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新疆大学石油天然气精细化工教育部和自治区重点实验室化学化工学院
Published:2017
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[1]漆维霞,王璐,王丰,等.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)[J].新疆大学学报(自然科学版),2017,34(02):127-132.
[1]漆维霞,王璐,王丰,等.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)[J].新疆大学学报(自然科学版),2017,34(02):127-132. DOI: 10.13568/j.cnki.651094.2017.02.001.
DOI:10.13568/j.cnki.651094.2017.02.001.
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.
In this work
Bi-based catalysts were prepared by one pot method(PM)and incipient wetness impregnation method(IM)and preparation conditions of the PM were researched.Catalytic activity of catalysts was evaluated using a fixed-bed reactor for acetylene hydrochlorination.The results displayed that the PM catalyst was prepared at 160?C for 2h possessed a superior catalytic performance compared to the IM catalyst.The characterizations of XRD
BET
EDS and SEM demonstrated that the PM catalyst was microspheres structure
which could provide richer channel structures
larger specific surface areas and more active centres
thus improving the catalytic performances of catalysts.In addition
carbon deposition in the reaction was a possible reason for Bi-based catalysts deactivation.
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