Experimental study on desorption characteristics of SAPO-34 and ZSM-5 zeolite
- 51 Downloads
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.
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).
- 18.Wang LJ, Zhao HT, Hao ZX et al (2007) Effects of SAPO-34 dealing method on adsorption property. Acta Chim Sin 65:1929–1932Google Scholar
- 23.Chen HX, Wei L, Zhang W, Dong YY, Zhu J, Zhang C, Yin M (2013) Structure analysis and heat transfer performance study on spiral plate of the adsorption bed. Chin J Refrig 34:45–49Google Scholar
- 24.Bullis K (2011) Turning industrial waste heat into electricity. Technology Review INDIA, MIT’s Magazine on Innovation 44(3)Google Scholar