| Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation | |
Song, Yuan-Mei1,2; Wang, Fei1,2 ; Guo, Gang1; Luo, Sheng-Jun1; Guo, Rong-Bo1
| |
| 2017-10-01 | |
| 发表期刊 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 卷号 | 5期号:10页码:9271-9278 |
| 摘要 | Despite being a good promoter for methane hydrate formation, carbon nanotubes (CNTs) aggregate easily, which weakens their promotion effect. In this work, highly dispersed carbon nanotubes (CNTs) were prepared by coating the nanotube surface with an amphiphilic copolymer, namely, poly(styrene-co-sodium styrenesulfonate) (PSCS), to accelerate methane hydrate formation. In the presence of functionalized CNTs (f-CNTs), the hydrate storage capacity increased from 46 +/- 8 to 138 +/- 8 v/v when the PSCS/CNT mass ratio (R) was increased from 0 to 20. In addition, the hydrate formation period gradually shortened as the R value was increased from 5 to 20. The methane uptake was also enhanced from 68 to 135 mmol of gas/(mol of water) as the f-CNT loading was changed from 10 to 150 ppm. Meanwhile, hydrate formation could be completed within 100 min in f-CNT dispersions with high concentrations. Compared with those formed using sodium dodecyl sulfate (SDS) as the promoter, the hydrates formed with f-CNTs as the promoter mainly aggregated at the reactor bottom and generated no foams during the dissociation process. Moreover, the f-CNTs showed excellent recycling performance in eight repeated hydrate formation-dissociation processes with high gas storage capacities of 120-132 v/v, which therefore is of great significance for hydrate-based gas storage and transportation. |
| 文章类型 | Article |
| 关键词 | Methane Hydrates Promoters Polymer-coated Cnts Formation Rate Recycling |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1021/acssuschemeng.7b02239 |
| 关键词[WOS] | FORMATION KINETICS ; SURFACTANT ; GAS ; NANOPARTICLES ; DISPERSION ; STORAGE ; GROWTH ; ENERGY ; WATER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Chemistry ; Engineering |
| 项目资助者 | China Postdoctoral Science Foundation(2017M612370) ; Shandong Province Key Research and Development Plan(2017GSF16106) |
| WOS类目 | Chemistry, Multidisciplinary ; Engineering, Chemical |
| WOS记录号 | WOS:000412382700086 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qibebt.ac.cn/handle/337004/9729 |
| 专题 | 工业生物燃气研究组 |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Shandong Ind Engn Lab Biogas Prod & Utilizat, 189 Songling Rd, Qingdao 266101, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Yuan-Mei,Wang, Fei,Guo, Gang,et al. Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(10):9271-9278. |
| APA | Song, Yuan-Mei,Wang, Fei,Guo, Gang,Luo, Sheng-Jun,&Guo, Rong-Bo.(2017).Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(10),9271-9278. |
| MLA | Song, Yuan-Mei,et al."Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.10(2017):9271-9278. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论