Optimization and diffusion model for acetylene slow-release in compound matrix

ZHANG Lijie; ZHAO Tiantao; ZHAO Youcai; SHI Xiaohong

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Optimization and diffusion model for acetylene slow-release in compound matrix

更新时间：2025-12-10

- Optimization and diffusion model for acetylene slow-release in compound matrix
- CIESC Journal Issue 5, Pages: 1307-1312(2010)
- 作者机构：
  
  1. 重庆理工大学化学与生物工程学院
  2. 同济大学污染控制与资源化研究国家重点实验室
- 作者简介：
- 基金信息：
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- Online First：05 May 2010，
  
  Published：05 May 2010
- 稿件说明：
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ZHANG Lijie, ZHAO Tiantao, ZHAO Youcai, et al. Optimization and diffusion model for acetylene slow-release in compound matrix[J]. CIESC Journal, 2010, (5): 1307-1312.
DOI：

ZHANG Lijie, ZHAO Tiantao, ZHAO Youcai, et al. Optimization and diffusion model for acetylene slow-release in compound matrix[J]. CIESC Journal, 2010, (5): 1307-1312. DOI：

摘要

以甲烷生物抑制和长效缓释技术为基础，制备了石蜡/松香复合基质的甲烷缓释抑制剂。考察了乙炔和钙离子的释放情况，当碳化钙/石蜡比例为1∶1、缓释剂直径为10 mm时可获得较好的缓释效果，包裹醋酸纤维(CA)膜对缓释有明显的促进作用。当基质中添加松香含量达到20%时，缓释145 d的释放度仅为28.42%。Sinclair & Peppas经验扩散模型可以很好地预测乙炔的释放过程。基于复合基质扩散特性推演出了修正的Higuchi理论模型，并获得了有效扩散系数。

Abstract

The slow-release inhibitors were prepared based on the technology of bio-inhibition on methanogens and slow-release.The process optimization on release of acetylene and Ca2+ was carried out

and it was found that when the ratio of calcium carbide to paraffin wax was 1∶1 and the diameter of slow-release inhibitor was 10 mm

the release time was longer.Additionally

the inhibitor coated with cellulose acetate (CA) had better effect on slow-release.The ratio of release reached 28.42% after releasing 145 d with the content of rosin 20%.Empirical diffusion formula of Sinclair & Peppas can describe the release process well.Moreover

a mechanism model was derived based on the Higuchi model and the diffusion coefficients were acquired.

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