摘要：The ice powder with unfrozen surfactant solution layer (active ice) is efficient in intensifying gas hydrate formation, however, only in a narrow temperature range. To broaden the temperature range, the effects of gas injection mode, gas pressure and temperature, and particle size on the hydrate formation in the active ice were investigated. The results suggested that continuous gas injection enhanced hydrate formation by producing more unfrozen solution layer at low temperatures; the hydrate formation rate and the gas uptake increased with the increase of gas pressure, while increased with the increase of gas temperature only at low ice temperatures; increasing the gas temperature is more effective in smaller ice particles. The suitable temperature range for fast hydrate formation in the active ice was broadened to 273.15 similar to 266.15 K from 273.15 similar to 271.65 K. This study improves the feasibility of hydrate-based gas storage or separation via the active ice.

关键字：Gas hydrate; Active ice; Temperature range

ISSN号：0009-2509

卷、期、页：卷: 305

发表日期：2025-02-15

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：CHEMICAL ENGINEERING SCIENCE

通讯作者：李娟娟,赵文龙,张辉,刘康,亓美霞,杨博旭

第一作者：肖朋,陈光进,孙长宇

论文类型：期刊论文

论文概要：李娟娟,赵文龙,肖朋,张辉,刘康,亓美霞,杨博旭,陈光进,孙长宇，Intensified methane hydrate formation from active ice in wide temperate range，CHEMICAL ENGINEERING SCIENCE，2025，卷: 305

论文题目：Intensified methane hydrate formation from active ice in wide temperate range