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.

引用

页码：3446 / 3451

页数：5

共 22 条

[21] Chen G.J., Guo T.M., A new approach to gas hydrate modelling, Chemical Engineering Journal, 71, 2, pp. 145-151, (1998)
[22] Dalmazzone D., Hamed N., Dalmazzone C., DSC measurements and modelling of the kinetics of methane hydrate formation in water-in-oil emulsion, Chemical Engineering Science, 64, 9, pp. 2020-2026, (2009)

← 1 2 3 →