乙烯水合物膜生长动力学

LUO Hu; CHEN Guangjin; PENG Baozi

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乙烯水合物膜生长动力学

更新时间：2025-12-10

- 乙烯水合物膜生长动力学
- CIESC Journal Issue 8, (2006)
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- Online First：25 August 2006，
  
  Published：25 August 2006
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LUO Hu, CHEN Guangjin, PENG Baozi. 乙烯水合物膜生长动力学[J]. CIESC Journal, 2006, (8).
DOI：

LUO Hu, CHEN Guangjin, PENG Baozi. 乙烯水合物膜生长动力学[J]. CIESC Journal, 2006, (8). DOI：

摘要

利用显微放大技术测定了不同温度(274.1～280.1 K)、压力(0.80～4.38 MPa)下乙烯水合物膜在乙烯气泡表面生长的动力学数据，采用量纲1 Gibbs自由能差作为推动力对数据进行关联建模，得到了乙烯水合物膜生长动力学模型，并回归出乙烯水合物膜生长表观活化能为61.23 kJ·mol-1，指前因子为6.76×1011mm2·s-1，同时，考察了在不同温度下压力对乙烯水合物膜生长速率的影响.

Abstract

The growth kinetics of ethylene hydrate was studied by measuring the hydrate film growth rate on the surface of a suspended ethylene bubble in water at temperatures from 274.1 K to 280.1 K over a pressure range of 0.80—4.38 MPa. The dimensionless molar Gibbs free energy difference was used as the driving force to correlate the experimental data. The apparent activation energy of 61.23 kJ·mol-1 and the pre-exponential factor of 6.76×1011 mm2·s-1 were determined by regression of experimental data.The influence of pressure upon the film growth rate of ethylene hydrate at different temperatures was also investigated.

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