黑龙江科技大学学报2024，Vol.34Issue(1)：1-7,7.DOI:10.3969/j.issn.2095-7262.2024.01.001
驱动力对煤介质中CO2水合物生长动力学的影响
Effect of driving force on kinetics of CO2 hydrate growth in coal media
摘要
Abstract
This paper intends to investigate the effect of different driving forces on CO2 dynamics in coal media.The study conducts a experimental research on the growth kinetics of CO2 hydrate in coal media under three driving forces to obtain the kinetic parameters of CO2 hydrate in synthesis process.The results show that in the process of hydrate generation in the same particle size system,the CO2 gas con-sumption of 3 MPa driving force is about 1.14 times and 1.34 times of that of 2.5 MPa and 2 MPa driv-ing force.The increase of driving force in different particle size systems accelerates the movement of gas molecules in the system,together with the increase of collisions of the gas molecules with water molecules at the liquid surface,and it follows the increase of the CO2 hydrate crystal nucleation,and the quick speed of the CO2 hydrate gas consumption and the growth rate.Between the particle size of 0.150-0.850 mm,the growth rate of CO2 hydrate increases gradually with the enlargement of the partical size.The relation between the average growth rate of CO2 hydrate and the driving force obtained by linear fitting provides a reference for predicting the average growth rate of CO2 hydrate.关键词
CO2水合物/煤与CO2突出/气体消耗量/生长速率Key words
CO2 hydrates/coal and CO2 outburst/gas consumption/growth rate分类
矿业与冶金引用本文复制引用
刘传海,藏岐峰,张保勇,吴强,张强,吴琼..驱动力对煤介质中CO2水合物生长动力学的影响[J].黑龙江科技大学学报,2024,34(1):1-7,7.基金项目
国家自然科学基金联合基金项目(U21A20111) （U21A20111）
国家自然科学基金项目(51704103) （51704103）
