geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Gas-phase simulated moving bed: Propane/propylene separation on 13X zeolite


, : Gas-phase simulated moving bed: Propane/propylene separation on 13X zeolite. Journal of Chromatography. A 1423: 136-148

In the last years several studies were carried out in order to separate gas mixtures by SMB technology; however, this technology has never been implemented on an industrial scale. In the present work, a gas phase SMB bench unit was built and tested for the separation of propane and propylene mixtures, using 13X zeolite extrudates as adsorbent and isobutane as desorbent. Three experiments were performed to separate propane/propylene by gas phase SMB in the bench scale unit with a 4-2-2 configuration, i.e., open loop circuit by suppressing section IV (desorbent regeneration followed by a recycle). Consequently, all the experiments were conducted using an external supply of pure isobutane as desorbent. Parameters such as switching time, extract and raffinate stream flow rates were changed to improve the efficiency of the process. Experimental results have shown that it is feasible to separate propylene from propane by gas phase SMB at a bench scale and that this process is a potential candidate to replace the conventional technologies for the propane/propylene separation. The performance parameters obtained are very promising for future development of this technology, since propylene was obtained in the extract stream with a purity of 99.93%, a recovery of 99.51%, and a productivity of [Formula: see text] . Propane was obtained in the raffinate stream with a purity of 98.10%, a recovery of 99.73% and a productivity of [Formula: see text] . The success of the above mentioned bench scale tests is a big step for the future implementation of this technology in a larger scale.

US$19.90

PMID: 26545337

DOI: 10.1016/j.chroma.2015.10.038


Other references

Szulc, J.; Kobylecki, W., 1957: Essay with methylmethacrylate in osteosynthesis; preliminary communication. Polski Tygodnik Lekarski 12(23): 887-889

Tan, B.K.; Ong, S.H.; Rajanaidu, N.; Rao, V., 1985: Biological modification of oil composition. Research on variability in oil composition in Elaeis guineensis, E. oleifera and E. oleifera X E. guineensis hybrids, breeding for oil composition, and tissue culture is reviewed in relation to prospects for improvement.

Maintz, D.; Grude, M.; Fallenberg, E.M.; Heindel, W.; Fischbach, R., 2003: Assessment of coronary arterial stents by multislice-CT angiography. To assess patency and lumen visibility of coronary artery stents by multislice-CT angiography (MSCTA) in comparison with conventional coronary angiography as the standard of reference. 47 stents of 13 different types were evaluated in 29 patients....

Hickey, C.F.; Amra, C.; Pelletier, E., 1989: Scattering study of single layer titania films. Scattering properties of nineteen single layer titania films are presented. These films are among those prepared for the 1986 Optical Society of America Annual Meeting and were made using six different deposition techniques. The properties are giv...

Lindberg, A.; Robinson, N.Edward.; Näsman-Glaser, B.; Jensen-Waern, M.; Lindgren, J.Ake., 2004: Assessment of leukotriene B4 production in leukocytes from horses with recurrent airway obstruction. Objective--To determine the ex vivo leukotriene (LT) biosynthesis in peripheral blood neutrophils (PBNs) and inflammatory cells in bronchoalveolar lavage fluid (BALF) obtained from horses affected with recurrent airway obstruction (RAO). Animals--...

Zhou ZhongHua; Wang RenXiang; Chen JinXiang, 2006: A comparative study on fiber characteristics of F1 and F2 of bollworm-resistance hybrid cotton. A comparative study was conducted in 7 locations in Yinzhuang of Shandong province, Yangzhou of Jiangsu province, Susong of Anhui province and Nanxian Lixian of Hunan province, China during 2003 to evaluate the fibre characteristics of F1 and F2 o...

Sastry, K.S.M.; Pandotra, V.R.; Thakur, R.N.; Gupta, J.H., 1973: Experiments on cultivation of Solanum laciniatum Ait. under Jammu conditions. A summary is given of the results of experiments on the cultivation of S. laciniatum for solasodine production. August and September were suitable for raising seedlings to be transplanted in October at a minimum spacing of 4 X 4 ft. Leaf samples c...

Roubal, J., 1913: Zwei neue Anthaxia-spezies aus der Verwandtschaft der sepulchralis Fabr. Koleopterologische Rundschau Wien, 2 33-35

Suelter, C.H.; Snell, E.E., 1979: Assay of pyridoxal phosphate and pyridoxamine phosphate, employing S-o-nitrophenyl-L-cysteine, a chromogenic substrate of tryptophanase. Methods in Enzymology 62: 561-568

Chukhrov F.V.; Gorshkov A.I.; Yermilova L.P.; Berezovskaya V.V.; Sivtsov A.V., 1982: Mineral forms of manganese and iron in oceanic sediments. International Geology Review 24(4): 466-480