天然气化工(C1化学与化工)2018，Vol.43Issue(2)：34-39,6.
石英砂介质中CO2水合物形成影响研究
Influence factors of carbon dioxide hydrate formation in quartz sand media
摘要
Abstract
The formation of carbon dioxide hydrate has important guiding significance to carbon dioxide underground solid-state storage and replacement exploitation of hydrate with carbon dioxide. The characteristics of carbon dioxide hydrate formation, like induction time and formation rate, were investigated experimentally in a designed hydrate experimental device under different combinations of initial pressure,hydrate forming temperature and quartz sand particle size.It was found that the total yield of hydrate formation increases with the increase of initial experimental pressure and the reduction of temperature, and is almost unaffected by quartz sand particle size. Average rate of hydrate formation slows down with the decreases of initial experimental pressure and hydrate forming temperature and the increase of quartz sand particle size. The induction time of hydrate formation elongates significantly with the decrease of initial pressure and the increase of quartz sand particle size.When the initial experimental pressure is too high, over a certain value, it will result in carbon dioxide liquefaction before hydrate formation, then the induction time of hydrate formation is not obvious and the average rate of hydrate formation is also slow.关键词
石英砂/二氧化碳水合物/粒径/初始实验压力/水合物生成量/诱导时间Key words
quartz sand/carbon dioxide hydrate/particle size/initial experimental pressure/hydrate yield/induction time分类
化学化工引用本文复制引用
张金华,张郁,魏伟..石英砂介质中CO2水合物形成影响研究[J].天然气化工(C1化学与化工),2018,43(2):34-39,6.基金项目
中国石油油气勘探科技项目(2016B-4901)、中国石油-中国科学院科技合作项目(2015A-4813)联合资助 （2016B-4901）
