PtSn@S-1&amp;<italic style="font-style: italic">β</italic>-Mo<sub>2</sub>C串联催化剂CO<sub>2</sub>氧化丙烷脱氢制丙烯性能研究

夏瑶靓; 边凯; 刘思蕊; 王志群; 张光辉; 郭新闻

doi:10.12434/j.issn.2097-2547.20240096

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PtSn@S-1&β-Mo₂C串联催化剂CO₂氧化丙烷脱氢制丙烯性能研究

二氧化碳利用

- PtSn@S-1&β-Mo₂C串联催化剂CO₂氧化丙烷脱氢制丙烯性能研究
- Study on performance of PtSn@S-1&β-Mo₂C tandem catalyst in CO₂-oxidative propane dehydrogenation to propylene
- 低碳化学与化工 2024, 49(7): 96-103.
- 作者机构：
  
  1.大连理工大学化工学院，精细化工国家重点实验室，智能材料化工前沿科学中心，辽宁　大连　116024
  2.中国石化大连石油化工研究院，辽宁　大连　116045
- 作者简介：
  
  夏瑶靓（1999—），硕士研究生，研究方向为环境友好催化化学与催化剂，E-mail：XiaYaoliang@mail.dlut.edu.cn。
  张光辉（1984—），博士，副教授，研究方向为多相催化，E-mail：gzhang@dlut.edu.cn；
  郭新闻（1967—），博士，教授，研究方向为分子筛合成与应用、二氧化碳催化转化，E-mail：guoxw@dlut.edu.cn。
- 基金信息：
  
  国家自然科学基金(21902019);兴辽英才计划青年拔尖人才项目(XLYC2203126)
- DOI：10.12434/j.issn.2097-2547.20240096
  中图分类号： TQ426
- 纸质出版日期：2024-07-25，
  
  收稿日期：2024-03-09，
  
  修回日期：2024-04-01，
- 稿件说明：
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夏瑶靓,边凯,刘思蕊等.PtSn@S-1&β-Mo₂C串联催化剂CO₂氧化丙烷脱氢制丙烯性能研究[J].低碳化学与化工,2024,49(07):96-103.

XIA Yaoliang,BIAN Kai,LIU Sirui,et al.Study on performance of PtSn@S-1&β-Mo₂C tandem catalyst in CO₂-oxidative propane dehydrogenation to propylene[J].Low-carbon Chemistry and Chemical Engineering,2024,49(07):96-103.
夏瑶靓,边凯,刘思蕊等.PtSn@S-1&β-Mo₂C串联催化剂CO₂氧化丙烷脱氢制丙烯性能研究[J].低碳化学与化工,2024,49(07):96-103. DOI： 10.12434/j.issn.2097-2547.20240096.

XIA Yaoliang,BIAN Kai,LIU Sirui,et al.Study on performance of PtSn@S-1&β-Mo₂C tandem catalyst in CO₂-oxidative propane dehydrogenation to propylene[J].Low-carbon Chemistry and Chemical Engineering,2024,49(07):96-103. DOI： 10.12434/j.issn.2097-2547.20240096.

摘要

PtSn双金属催化剂因具有高活性和高选择性被广泛应用于丙烷脱氢制丙烯反应中。然而在高温下，催化剂易产生积炭从而导致稳定性降低。二氧化碳氧化丙烷脱氢（CO

-PDH）因其有望在转化丙烷的同时兼具消除积炭和推动脱氢反应正向移动的特点，已成为新的研究热点。将逆水煤气催化剂

-Mo

C与丙烷脱氢催化剂PtSn@S-1串联用于CO

-PDH反应中，开发高活性、高选择性和高稳定性的催化剂，并结合XRD、CO

-TPD、C

-TPD及热重等方法对催化剂进行了表征。结果表明，在CO

-PDH反应中，PtSn@S-1串联加入

-Mo

C后，粉末混合的串联催化剂PtSn@S-1

-Mo

C的稳定性明显提升，并在连续运转1440 min内未出现失活现象，催化剂的高稳定性归因于反应过程中CO

消除了部分积炭。对反应条件进行了优化，发现在

(CO

)为1.0、

(PtSn@S-1):

(

-Mo

C)为1.0:0.4时，粉末混合的串联催化剂PtSn@S-1

-Mo

C在CO

-PDH反应中表现出最佳性能，丙烷转化率在反应500 min后稳定在43.0%以上，丙烯选择性超过99%。

Abstract

Bimetallic PtSn catalysts with notable activity and selectivity are widely used in propane dehydrogenation to propylene. However

at high temperature

catalysts are prone to carbon deposition

leading to a decrease in stability. CO

-oxidative propane dehydrogenation (CO

-PDH) has become a new research hotspot due to its potential to eliminate carbon deposition and promote the forward movement of dehydrogenation reaction while converting propane. The reverse water-gas shift catalyst

-Mo

C with propane dehydrogenation catalyst PtSn@S-1 were mixed in CO

-PDH

aiming to develop highly active

selective and stable catalysts. The catalysts were characterized by XRD

-TPD

and thermogravimetric analysis. The research results indicate that in CO

-PDH

the stability of the powder-mixe

d tandem catalyst PtSn@S-1

-Mo

C significantly improves by adding

-Mo

C in series to PtSn@S-1

and the catalyst remains active without deactivation during continuous operation for 1440 min

and the high stability of the catalyst is attributed to the removal of partial carbon deposition by CO

during the reaction process. After optimizing the reaction conditions

it is found that when

(CO

) is 1.0 and

(PtSn@S-1):

(

-Mo

C) is 1.0:0.4

the powder-mixed tandem catalyst PtSn@S-1

-Mo

C exhibites the best performance in CO

-PDH. The propane conversion rate remaines stable at above 43.0% after 500 min and propylene selectivity exceeds 99%.

关键词

PtSn@S-1β-Mo2C串联催化剂二氧化碳氧化丙烷脱氢

Keywords

PtSn@S-1β-Mo2Ctandem catalystCO2-oxidative propane dehydrogenation

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PtSn@S-1&β-Mo2C串联催化剂CO2氧化丙烷脱氢制丙烯性能研究

Study on performance of PtSn@S-1&β-Mo2C tandem catalyst in CO2-oxidative propane dehydrogenation to propylene

DOI：10.12434/j.issn.2097-2547.20240096

摘要

Abstract

关键词

Keywords

references

PtSn@S-1&β-Mo₂C串联催化剂CO₂氧化丙烷脱氢制丙烯性能研究

Study on performance of PtSn@S-1&β-Mo₂C tandem catalyst in CO₂-oxidative propane dehydrogenation to propylene