摘要：Being an alternative environment-friendly fluid for the refrigeration process, CO2hydrate slurry is undesired to result in hydrate blocking in the system. A series of water-based CO2hydrate slurry experiments were conducted to investigate hydrate blockages in a high-pressure flow loop. Blocking would occur soon after CO2hydrate formation onset. Rapid restart process after the first blocking was found to have serious consequence by inducing a fast hydrate regrowth and an irreversible secondary blocking. The mechanisms of the first blocking and the secondary blocking after the restart process were proposed, based on the observed phenomena and the particle chord length distribution data recorded by focused beam reflectance measurement probe. The influences of the initial flow rate on the supercooling, the induction time, the restart time, and the required time for the secondary blocking after the restart process were analyzed. The understanding on the blocking and restart process mechanisms of CO2hydrate slurry is important not only in the development of hydrate-based refrigeration system but also in the field of flow assurance in the oil and gas pipeline or for other applications such as the replacement of methane by CO2in the naturally occurring hydrate exploration.
© 2018 Curtin University and John Wiley & Sons, Ltd.

ISSN号：1932-2135

卷、期、页：v 13,n 3,

发表日期：2018-01-01

期刊分区（SCI为中科院分区）：无

收录情况：国内一般期刊

发表期刊名称：Asia-Pac. J. Chem. Eng.

参与作者：Li, Wen-Qing,Lv, Xiao-Fang

通讯作者：丁麟,柳扬,宋尚飞,阮超宇

第一作者：史博会,吴海浩,王玮,宫敬

论文类型：期刊论文

论文概要：史博会,丁麟,Li, Wen-Qing,Lv, Xiao-Fang,柳扬,宋尚飞,阮超宇,吴海浩,王玮,宫敬，Investigation on hydrates blockage and restart process mechanisms of CO2hydrate slurry flow，Asia-Pac. J. Chem. Eng.，2018，v 13,n 3,

论文题目：Investigation on hydrates blockage and restart process mechanisms of CO2hydrate slurry flow