Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes | |
Li, Ze-Yu; Xia, Zhi-Ming; Chen, Zhao-Yang; Li, Xiao-Sen1 ; Xu, Chun-Gang; Yan, Ran
| |
| 2019-03-15 | |
| Source Publication | APPLIED ENERGY
 |
| ISSN | 0306-2619 |
| Volume | 238Pages:195-201 |
| Corresponding Author | Li, Xiao-Sen(lixs@ms.giec.ac.cn) |
| Abstract | Hydrate-based carbon dioxide (CO2) capture and hydrogen (H-2) purification is a promising technology in clean energy fields. In this work, in order to reveal the effect and mechanism of tetrahydrofuran (THF) on the hydrate based CO2 separation from Integrated Gasification Combined Cycle (IGCC) syngas, the CO2/H-2/THF hydrates formation processes were studied with and without memory effect. According to the pressure drop curves, there appear two pressure plateaus in the CO2/H-2/THF hydrate formation processes. Furthermore, with the usage frequency of the THF solution increasing, the plateau effects are more ambiguous and difficult to be observed. It is interesting that the Raman spectra for CO2 and H-2 molecules also reveal slim Raman shifts between the two different hydrate plateaus. According to the powder X-ray diffraction (PXRD) patterns, indeed, the detail Miller indices indicates that CO2/H-2/THF hydrate mainly forms THF center dot 16.8 H2O structure in the first plateau, while mainly forms THF center dot 17 H2O structure in the second plateau. The reason for this phenomenon is mainly the influence of CO2, its large molecular size and the localized tension it causes in the water network of the small cages which can enhance the storage capability for the large cages of THF hydrate. The experimental results illustrate that the highest Split fraction (S.Fr) is 69.02% obtained at 6 MPa/284.85 K (memory effect), and this work highlights that the memory solution are more suitable for industrial application. |
| Keyword | Gas hydrate Syngas Tetrahydrofuran Raman spectrum PXRD Crystal transform |
| DOI | 10.1016/j.apenergy.2018.12.080 |
| WOS Keyword | PRE-COMBUSTION CAPTURE ; SEPARATION HBGS PROCESS ; CARBON-DIOXIDE ; HYDROGEN CLUSTERS ; CLATHRATE HYDRATE ; PHASE-EQUILIBRIA ; CO2 CAPTURE ; FUEL GAS ; MIXTURES ; PRESSURE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key Program of the National Natural Science Foundation of China[51736009] ; National Key Research and Development Plan of China[2016YFC0304002] ; National Key Research and Development Plan of China[2017YFC0307306] ; National Natural Science Foundation of China[51879254] ; National Natural Science Foundation of China[51676196] ; National Natural Science Foundation of China[51576202] ; National Natural Science Foundation of China[51476174] ; CAS Science and Technology Apparatus Development Program[YZ201619] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Pearl River S&T Nova Program of Guangzhou[201710010098] ; Pearl River S&T Nova Program of Guangzhou[201610010164] |
| WOS Research Area | Energy & Fuels ; Engineering |
| Funding Organization | Key Program of the National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; CAS Science and Technology Apparatus Development Program ; Special Project for Marine Economy Development of Guangdong Province ; Pearl River S&T Nova Program of Guangzhou |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000461262300016 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/24774 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Xiao-Sen |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Ze-Yu,Xia, Zhi-Ming,Chen, Zhao-Yang,et al. The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes[J]. APPLIED ENERGY,2019,238:195-201. |
| APA | Li, Ze-Yu,Xia, Zhi-Ming,Chen, Zhao-Yang,Li, Xiao-Sen,Xu, Chun-Gang,&Yan, Ran.(2019).The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes.APPLIED ENERGY,238,195-201. |
| MLA | Li, Ze-Yu,et al."The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes".APPLIED ENERGY 238(2019):195-201. |
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