Rare Earth Metals Ion-exchanged β-Zeolites as Supports of Platinum Catalysts for Hydroisomerization of <i>n</i>-Heptane

刘平; 姚月; 张兴光; 王军

doi:10.1016/S1004-9541(11)60166-3

Your Location：

Home >

Browse articles >

Rare Earth Metals Ion-exchanged β-Zeolites as Supports of Platinum Catalysts for Hydroisomerization of n-Heptane

Updated：2026-01-06

- Rare Earth Metals Ion-exchanged β-Zeolites as Supports of Platinum Catalysts for Hydroisomerization of n-Heptane
- Chinese Journal of Chemical Engineering Vol. 19, Issue 2, Pages: 278-284(2011)
- Affiliations：
  
  State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60166-3
  CLC：
- Published：2011
- Accepted：
Scan QR Code
-Heptane[J]. , 2011, 19(2): 278-284.
DOI：

-Heptane[J]. , 2011, 19(2): 278-284. DOI： 10.1016/S1004-9541(11)60166-3.

摘要

Abstract

A series of Pt catalysts supported on the Hβ-zeolite that is ion-exchanged with the rare earth metal ions of Ce(Ⅲ) and La(Ⅲ)

are prepared by impregnation

characterized by inductively coupled plasma (ICP)

X-ray diffraction (XRD)

BET

temperature-programmed desorption of ammonia (NH3-TPD)

temperature-programmed reduction of hydrogen (H2-TPR) and H2-chemisorption techniques

and evaluated in the hydroisomerization of n-heptane with an atmospheric fixed-bed reactor.The reaction temperature

time on stream

space velocity

and the ratio of H

-heptane are changed to get the optimal conditions.The Ce(III) and La(Ⅲ)-exchanged Hβ-zeolites exhibit higher selectivity for isomerized products than the neat Hβ-zeolite.Moreover

the Ce(Ⅲ)-exchanged catalysts give higher conversions of n-heptane

whereas the La(Ⅲ)-exchanged ones do not show any improvement in con-version.Under optimal conditions

the catalyst with 0.4% (by mass) Pt and 0.5% (by mass) Ce loading presents very high selectivity of isomerized products of 95.1% coupled with high n-heptane conversion of 68.7%.Effects of the ion-exchange of Ce(Ⅲ) and La(Ⅲ) on the catalytic performance are discussed in relation with the physico-chemical properties of catalysts.

关键词

Keywords

references

Views

231

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Aromatization of Methanol over La/Zn/HZSM-5 Catalysts

Recovery rubidium chloride and cyclic utilization of hexacyanoferrate(II) ion from hexacyanoferrate-internediate solutions via solvent extraction

Synthesis of chemiluminescent carbonized polymer dots under atmospheric conditions for multimode luminescence anti-counterfeiting

COS generation behavior during desulfurization for H2S over zeolite in simulated blast furnace gas

Non-phosgene synthesis processes of isocyanates: One-step and two-step routes

Related Author

倪友明

孙爱明

吴小岭

胡江林

李涛

李光兴

Related Institution

School of Chemistry&Chemical Engineering, Huazhong University of Science&Technology

Hubei Key Laboratory of Materials Chemistry&Service Failure, Huazhong University of Science&Technology

⁰

Rare Earth Metals Ion-exchanged β-Zeolites as Supports of Platinum Catalysts for Hydroisomerization of n-Heptane

DOI：10.1016/S1004-9541(11)60166-3

摘要

Abstract

关键词

Keywords

references