本体金属氧化物在丙烷无氧脱氢中的研究进展

O643.3; 丙烯作为基本的化工原料,近年来需求不断增加,传统蒸汽裂解和催化裂化工艺难以满足丙烯需求.丙烷脱氢(PDH)工艺因原料来源丰富、丙烯选择性高和产物简单易分离等优势备受关注.传统PDH催化剂为Pt-Sn/Al2O3和CrOx/Al2O3,但铂基催化剂价格昂贵,铬基催化剂毒性较高.本体金属氧化物(氧化锆、氧化钛、氧化铝、氧化钨、氧化铕和氧化钆)催化剂具有本征活性高、价格低廉和无毒环保等优势,展现出一定的应用前景.基于此,主要从反应机理和催化剂结构性质调控2个方面综述本体金属氧化物在PDH反应中的研究进展.总结发现配位不饱和的金属阳离子(Mcus+)是主要的脱氢活性位点,其浓度可通过晶...

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Published in应用化学 Vol. 40; no. 6; pp. 789 - 805
Main Authors 于宜辰, 张雨宸, 张耀远, 吴芹, 史大昕, 陈康成, 黎汉生
Format Journal Article
LanguageChinese
Published 北京理工大学化学与化工学院,北京100081 01.06.2023
Subjects
Metal oxides
催化剂
烷烃
金属氧化物
Propane dehydrogenation
丙烷脱氢
Alkane
Multiphase reaction
多相反应
Catalyst
Online AccessGet full text
ISSN1000-0518
DOI10.19894/j.issn.1000-0518.220414

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Abstract O643.3; 丙烯作为基本的化工原料,近年来需求不断增加,传统蒸汽裂解和催化裂化工艺难以满足丙烯需求.丙烷脱氢(PDH)工艺因原料来源丰富、丙烯选择性高和产物简单易分离等优势备受关注.传统PDH催化剂为Pt-Sn/Al2O3和CrOx/Al2O3,但铂基催化剂价格昂贵,铬基催化剂毒性较高.本体金属氧化物(氧化锆、氧化钛、氧化铝、氧化钨、氧化铕和氧化钆)催化剂具有本征活性高、价格低廉和无毒环保等优势,展现出一定的应用前景.基于此,主要从反应机理和催化剂结构性质调控2个方面综述本体金属氧化物在PDH反应中的研究进展.总结发现配位不饱和的金属阳离子(Mcus+)是主要的脱氢活性位点,其浓度可通过晶粒尺寸、晶相、金属掺杂、贵金属纳米粒子负载和还原性气体(氢气、一氧化碳)预处理等方式进行调控,进而提高PDH反应性能.最后,指出在本体金属氧化物基础上耦合其它脱氢活性位点(金属或金属氧化物)是进一步提高PDH催化性能的有效途径.
AbstractList O643.3; 丙烯作为基本的化工原料,近年来需求不断增加,传统蒸汽裂解和催化裂化工艺难以满足丙烯需求.丙烷脱氢(PDH)工艺因原料来源丰富、丙烯选择性高和产物简单易分离等优势备受关注.传统PDH催化剂为Pt-Sn/Al2O3和CrOx/Al2O3,但铂基催化剂价格昂贵,铬基催化剂毒性较高.本体金属氧化物(氧化锆、氧化钛、氧化铝、氧化钨、氧化铕和氧化钆)催化剂具有本征活性高、价格低廉和无毒环保等优势,展现出一定的应用前景.基于此,主要从反应机理和催化剂结构性质调控2个方面综述本体金属氧化物在PDH反应中的研究进展.总结发现配位不饱和的金属阳离子(Mcus+)是主要的脱氢活性位点,其浓度可通过晶粒尺寸、晶相、金属掺杂、贵金属纳米粒子负载和还原性气体(氢气、一氧化碳)预处理等方式进行调控,进而提高PDH反应性能.最后,指出在本体金属氧化物基础上耦合其它脱氢活性位点(金属或金属氧化物)是进一步提高PDH催化性能的有效途径.
Author 于宜辰
黎汉生
史大昕
张雨宸
张耀远
陈康成
吴芹
AuthorAffiliation 北京理工大学化学与化工学院,北京100081
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Author_FL LI Han-Sheng
WU Qin
ZHANG Yao-Yuan
CHEN Kang-Cheng
SHI Da-Xin
YU Yi-Chen
ZHANG Yu-Chen
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Keywords Metal oxides
催化剂
烷烃
金属氧化物
Propane dehydrogenation
丙烷脱氢
Alkane
Multiphase reaction
多相反应
Catalyst
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Snippet O643.3; 丙烯作为基本的化工原料,近年来需求不断增加,传统蒸汽裂解和催化裂化工艺难以满足丙烯需求.丙烷脱氢(PDH)工艺因原料来源丰富、丙烯选择性高和产物简单易分离等优势...
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Title 本体金属氧化物在丙烷无氧脱氢中的研究进展
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