Flow properties of CO<sub>2</sub> hydrate slurry in circular tube

LIU Ni; DAI Haifeng; YU Hongyi; YOU Longtao

doi:10.3969/j.issn.0438-1157.2014.02.026

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Flow properties of CO₂ hydrate slurry in circular tube

更新时间：2025-12-10

- Flow properties of CO₂ hydrate slurry in circular tube
- CIESC Journal Issue 2, Pages: 550-554(2014)
- 作者机构：
  
  上海理工大学能源与动力工程学院,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.02.026
  CLC： Q031
- Online First：05 February 2014，
  
  Published：05 February 2014
- 稿件说明：
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LIU Ni, DAI Haifeng, YU Hongyi, et al. Flow properties of CO₂ hydrate slurry in circular tube[J]. CIESC Journal, 2014, (2): 550-554. DOI: 10.3969/j.issn.0438-1157.2014.02.026.
DOI：

LIU Ni, DAI Haifeng, YU Hongyi, et al. Flow properties of CO₂ hydrate slurry in circular tube[J]. CIESC Journal, 2014, (2): 550-554. DOI: 10.3969/j.issn.0438-1157.2014.02.026. DOI：

摘要

实验研究了固相分数为8.2%～23.1%的CO2水合物浆在内径为8 mm的圆管中的流动特性。结果发现水合物浆在管内的流动压降随着流速的增加而增大。当流速低于0.60 m·s-1时，浆体流变指数小于1，且随着固相体积分数的增大而减小，CO2水合物浆为H-B流体，其表观黏度随着流速的增大而减小，呈剪切变稀特性。剪切速率为600 s-1时，CO2水合物浆的表观黏度为8.5～10.6 mPa·s。实验得到了CO2水合物浆的流变特征参数及其流变方程，可为CO2水合物浆的流动及其应用研究提供理论指导。

Abstract

An experimental setup was established to produce CO2 hydrate slurry by cooling after CO2 injection in precooled water. The flow characteristics of CO2 hydrate slurry with 8.2%—23.1%(vol) in a 8 mm straight stainless steel circular tube were studied in a dynamic loop. The pressure drops of CO2 hydrate slurry were measured and it increased with the increase of flow rate. The flow of CO2 hydrate slurry presente non-Newtonian behavior. At flow rate v < 0.60 m·s-1

behavior index n < 1 and decreased with the increase of solid fraction. CO2 hydrate slurry behaved as a Herschel-Bulkley fluid. Apparent viscosity decreased with the increase of shear rate

showing shear-thinning characteristics. Apparent viscosity of CO2 hydrate slurry was from 8.5 mPa·s to 10.6 mPa·s at shearing rate of 600 s-1. The rheological parameters and equations were determined

providing the guide for the research of CO2 hydrate slurry flow properties and its application.

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Flow properties of CO2 hydrate slurry in circular tube

DOI：10.3969/j.issn.0438-1157.2014.02.026

摘要

Abstract

关键词

Keywords

references

Flow properties of CO₂ hydrate slurry in circular tube