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| 金属纤维悬浮液中天然气水合物生成特性实验研究 |
| Formation characteristics of natural gas hydrates in the suspension of metal fibers |
| 投稿时间：2019-04-28 |
| DOI：10.13259/j.cnki.eri.2021.04.006 |
| 中文关键词: 天然气水合物 生成 金属纤维 悬浮液 |
| 英文关键词:natural gas hydrates formation metal fibers suspension |
| 基金项目:国家自然科学基金青年项目（51606125）；国家煤加工与洁净化工程技术研究中心开放基金项目（2018NERCCPP-B05）；上海理工大学教师教学发展研究项目（CFTD192001） |
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| 中文摘要: |
| 水合物缓慢的生成速率已经成为水合物储运天然气技术应用的一大障碍。基于静态强化水合物生成技术，以含悬浮金属纤维的表面活性剂溶液作为水合储气介质，研究4.0～7.0 MPa下天然气水合物在悬浮溶液中的生成动力学特性。研究结果表明，金属纤维优良的导热性能够促进水合物快速生成，同时纤维的粗糙表面可促进水合物成核，水合物在金属纤维悬浮体系中的储气量与储气速率均明显高于表面活性剂溶液中的水合特性。在实验压力下，悬浮体系中水合物成核诱导时间明显降低，同时储气量可以达到87.3～129.6 m3·m-3，比表面活性剂溶液中的增加了5.0%～23.4%；储气速率达到4.4～25.1 m3·（m3·min）-1，比表面活性剂溶液中的提高了1.1%～39.8%。研究结果可为水合物储气技术在天然气储运方面的应用提供技术参考。 |
| 英文摘要: |
| The relatively slow gas storage rate and poor storage capacity of the static hydration system are still the major challenges in the large-scale practical application of hydrate technology. Based on the static enhanced hydrate formation, the kinetic performance of natural gas hydrates formation in surfactant solution with suspended metal fibers at 4.0～7.0 MPa were studied. The results showed that the excellent thermal conductivity of metal fibers could enhance the gas hydrates formation, and the rough surface of fibers could promote the nucleation of hydrates. The gas storage capacity and storage rate of hydrates in the suspension system were significantly higher than those in surfactant solution. Within the range of experimental pressure, compared with the simple surfactant solution, the induction time of hydrate formation was reduced significantly. The gas storage capacity (87.3～129.6 m3·m-3) of the suspension system increased by 5.0%～23.4%, and the storage rate [4.4～25.1 m3·(m3·min)-1] increased by 1.1%～39.8%. The research results would provide useful information for the application of gas hydrates technology. |
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