CO₂ capture and storage technology is an effective method to mitigate the greenhouse effect and hydrate slurry is a high-efficiency way of CO₂ transportation. In this study, in order to further reduce the cost and improve the transportability, a new CO₂ hydrate slurry transport mode which allows a small part of hydrate particles to dissociate during flow process is proposed. To investigate the CO₂ hydrate slurry flow characteristics and particle micro behaviors, a multiphase flow model coupled with hydrate dissociation kinetic model and population balance model is established. Experimental results are used to verify this integrated model. Furthermore, the effects of hydrate dissociation on CO₂ transportability are also analyzed. The results indicate that the dissociation rate of hydrate during flow process can be divided into rapid dissociation stage and weakened dissociation rate stage. The agglomeration of hydrate particle can reduce the total surface area, further resisting the dissociation rate. The hydrate particle size experiences a process of growing to dynamic balance. The hydrate dissociation can decrease the mean viscosity of CO₂ hydrate slurry flow, which can reduce the pressure drop and energy loss compared with the flow without hydrate dissociation. The generated bubbles can accelerate the CO₂ hydrate slurry flow, increasing the transportability and reducing the risk of hydrate blockage in pipe induced by agglomeration.

CO ₂捕集和封存技术是缓解温室效应的有效方法，水合物浆液是CO ₂运输的一种高效方式。本研究为了进一步降低成本和提高输送能力，提出了一种新的CO ₂水合物浆液输送模式，在流动过程中允许一小部分水合物颗粒解离。为研究CO ₂水合物浆液流动特性和颗粒微观行为，建立了结合水合物解离动力学模型和总体平衡模型的多相流模型。实验结果用于验证该集成​​模型。此外，水合物分解对 CO _{2 的影响}还分析了可运输性。结果表明，流动过程中水合物的解离速率可分为快速解离阶段和解离速率减弱阶段。水合物颗粒的团聚可以减少总表面积，进一步抑制解离速率。水合物粒径经历了一个增长到动态平衡的过程。水合物解离可以降低CO ₂水合物浆液流的平均粘度，与未解离的流相比，可以降低压降和能量损失。产生的气泡可以加速CO ₂水合物浆液流动，提高可输送性并降低结块引起管道内水合物堵塞的风险。