Kinetics of hydrate formation in water-oil emulsion for separation of methane and ethylene

被引：0
|
作者：
Zhou W. [1 ,3 ]
Li Y. [2 ,3 ]
Li X. [2 ,3 ]
Li Y. [2 ,3 ]
机构：
[1] Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin
[2] National Engineering Research Center for Distillation Technology, Tianjin
[3] Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin
来源：
Huagong Xuebao/CIESC Journal | 2016年 / 67卷 / 08期
关键词：
Ethylene; Hydrate; Kinetics; Recovery; Separation;
D O I：
10.11949/j.issn.0438-1157.20160375
中图分类号：
学科分类号：
摘要：
Low-carbon olefin separation is important in petrochemical industry. Separation of methane/ethylene mixture was studied by hydrate formation in water-in-oil (w/o) emulsion during isochoric and isothermal processes in an agitated reactor. With pressure-volume-temperature (PVT) method, the ethylene hydrate formation kinetics and separation efficiency were evaluated at various operating conditions of temperature and emulsion consumption. Ethylene concentration in gas mixture decreased from 34% to 9.97% and its recovery achieved to 90.36% with the use of 100mL emulsion at temperature of 273.35 K. Lower temperature and more emulsion were favorable for the recovery of ethylene. A kinetics-controlled model using fugacity difference as the driving force was proposed, which fitted the experiment data well and could predict experimental output accurately from operating parameters. © All Right Reserved.
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页码：3446 / 3451
页数：5
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共 22 条
  • [1] Ding X., Study on the oligomerization of ethylene in FCC dry gas, (2010)
  • [2] Xu G., Li L., Yang Y., Et al., A novel CO<sub>2</sub> cryogenic liquefaction and separation system, Energy, 42, 1, pp. 522-529, (2012)
  • [3] Barclay M.A., Brook T.C., Barclay J.A., Et al., Apparatus and method for purifying natural gas via cryogenic separation
  • [4] Huang W.Q., Zheng Z.N., Shi L., Et al., Simulation and optimization of gasoline vapor absorption separation, Advanced Materials Research, 742, pp. 492-496, (2013)
  • [5] Feron P.H.M., Jansen A.E., CO<sub>2</sub> separation with polyolefin membrane contactors and dedicated absorption liquids: performances and prospects, Separation and Purification Technology, 27, 3, pp. 231-242, (2002)
  • [6] Li Y., Yi H., Tang X., Et al., Adsorption separation of CO<sub>2</sub>/CH<sub>4</sub> gas mixture on the commercial zeolites at atmospheric pressure, Chemical Engineering Journal, 229, pp. 50-56, (2013)
  • [7] Mofarahi M., Gholipour F., Gas adsorption separation of CO<sub>2</sub>/CH<sub>4</sub> system using zeolite 5A, Microporous and Mesoporous Materials, 200, pp. 1-10, (2014)
  • [8] Zhang L., Qian G., Liu Z., Et al., Adsorption and separation properties of n-pentane/isopentane on ZIF-8, Separation and Purification Technology, 156, pp. 472-479, (2015)
  • [9] Wilcox J., Haghpanah R., Rupp E.C., Et al., Advancing adsorption and membrane separation processes for the gigaton carbon capture challenge, Annual Review of Chemical and Biomolecular Engineering, 5, pp. 479-505, (2014)
  • [10] Chen G.Q., Kanehashi S., Doherty C.M., Et al., Water vapor permeation through cellulose acetate membranes and its impact upon membrane separation performance for natural gas purification, Journal of Membrane Science, 487, pp. 249-255, (2015)
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