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Heat and Mass Transfer

, Volume 54, Issue 3, pp 895–902 | Cite as

Experimental study on desorption characteristics of SAPO-34 and ZSM-5 zeolite

  • Z. X. Yuan
  • X. Zhang
  • W. C. Wang
  • C. X. Du
  • Z. B. Liu
  • Y. C. Chen
Original

Abstract

The dynamic characteristics of SAPO-34 and ZSM-5 zeolite in the desorption process have been experimentally studied with the gravimetric method. The weight change of the test sample was recorded continually for different conditions of temperature and pressure. The curve of the desorption degree with the temperature and the pressure was obtained and discussed. With the intrinsic different micro-structure, the two zeolites showed distinguished characteristics of the desorption. In contrast to an S-shaped desorption curve of the SAPO-34, the ZSM-5 showed an exponential desorption curve. In comparison, the desorption characteristics of the ZSM-5 were better than that of the SAPO-34 in the temperature range of 40 °C ~ 90 °C. Nevertheless, the effect of the pressure on the desorption degree was stronger for the SAPO-34 than for the ZSM-5. Further analysis revealed that the desorption speed was affected more strongly by the temperature than by the pressure.

Notes

Acknowledgments

This research work was sponsored by the National Natural Science Foundation of China (Grant No. 51276005,51276004 & 51776006), and the National Key Basic Research Program of China (No. 2015CB251303).

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Z. X. Yuan
    • 1
  • X. Zhang
    • 1
  • W. C. Wang
    • 1
  • C. X. Du
    • 1
  • Z. B. Liu
    • 1
  • Y. C. Chen
    • 1
  1. 1.College of Environmental and Energy EngineeringBeijing University of TechnologyBeijingChina

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