Highly Adsorptive Separation of Ethane/Ethylene by An Ethane-Selective MOF MIL-142A. Chen, Y., Wu, H., Lv, D., Shi, R., Chen, Y., Xia, Q., & Li, Z. Industrial & Engineering Chemistry Research, 57(11):4063–4069, March, 2018. Paper doi abstract bibtex In the petrochemical industry, ethane/ethylene (C2H6/C2H4) separation is one of the most important processes. Herein, we reported an iron-based metal−organic framework MIL-142A for efficiently trapping C2H6 from C2H6/C2H4 mixture, exhibiting preferential adsorption of C2H6 over C2H4. After various characterization techniques to confirm the successful preparation of MIL-142A, the C2H6 and C2H4 adsorptive separation performance was systematically investigated. Results showed that MIL-142A had remarkably higher C2H6 adsorption capacities than that of C2H4 at 298, 288, and 278 K, such as C2H6 and C2H4 adsorption capacities of 3.8 and 2.9 mmol/g at 298 K and 100 kPa, respectively. In addition, the C2H6 and C2H4 adsorption heats were relatively low and in the corresponding ranges 27.3−25.1 and 26.2−23.8 kJ/mol, which is a favorable property for the regeneration of MIL142A with less energy penalty. Furthermore, it was inferred that the difference between the adsorption heat for C2H6 and C2H4 with the MIL-142A framework governed the selective adsorption of C2H6 over C2H4. The ideal adsorbed solution theory (IAST) selectivity of C2H6/C2H4 was high up to 5.8 in the initial low pressure and then decreased to 1.5 at 298 K and 100 kPa. Besides, breakthrough experiments also corroborated its efficient separation of C2H6/C2H4 mixture. Additionally, MIL-142A had excellent moisture stability, and its framework remained still intact after being exposed to humid conditions (80% RH) for 15 days. These comprehensive properties demonstrated that this unique material MIL-142A, as a high-performance C2H6-selective adsorbent, can be potentially used for highly adsorptive separation of the C2H6/C2H4 mixture.
@article{chen_highly_2018,
title = {Highly {Adsorptive} {Separation} of {Ethane}/{Ethylene} by {An} {Ethane}-{Selective} {MOF} {MIL}-{142A}},
volume = {57},
issn = {0888-5885, 1520-5045},
url = {https://pubs.acs.org/doi/10.1021/acs.iecr.7b05260},
doi = {10.1021/acs.iecr.7b05260},
abstract = {In the petrochemical industry, ethane/ethylene (C2H6/C2H4) separation is one of the most important processes. Herein, we reported an iron-based metal−organic framework MIL-142A for efficiently trapping C2H6 from C2H6/C2H4 mixture, exhibiting preferential adsorption of C2H6 over C2H4. After various characterization techniques to confirm the successful preparation of MIL-142A, the C2H6 and C2H4 adsorptive separation performance was systematically investigated. Results showed that MIL-142A had remarkably higher C2H6 adsorption capacities than that of C2H4 at 298, 288, and 278 K, such as C2H6 and C2H4 adsorption capacities of 3.8 and 2.9 mmol/g at 298 K and 100 kPa, respectively. In addition, the C2H6 and C2H4 adsorption heats were relatively low and in the corresponding ranges 27.3−25.1 and 26.2−23.8 kJ/mol, which is a favorable property for the regeneration of MIL142A with less energy penalty. Furthermore, it was inferred that the difference between the adsorption heat for C2H6 and C2H4 with the MIL-142A framework governed the selective adsorption of C2H6 over C2H4. The ideal adsorbed solution theory (IAST) selectivity of C2H6/C2H4 was high up to 5.8 in the initial low pressure and then decreased to 1.5 at 298 K and 100 kPa. Besides, breakthrough experiments also corroborated its efficient separation of C2H6/C2H4 mixture. Additionally, MIL-142A had excellent moisture stability, and its framework remained still intact after being exposed to humid conditions (80\% RH) for 15 days. These comprehensive properties demonstrated that this unique material MIL-142A, as a high-performance C2H6-selective adsorbent, can be potentially used for highly adsorptive separation of the C2H6/C2H4 mixture.},
language = {en},
number = {11},
urldate = {2020-02-04},
journal = {Industrial \& Engineering Chemistry Research},
author = {Chen, Yongwei and Wu, Houxiao and Lv, Daofei and Shi, Renfeng and Chen, Yang and Xia, Qibin and Li, Zhong},
month = mar,
year = {2018},
pages = {4063--4069},
}
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Results showed that MIL-142A had remarkably higher C2H6 adsorption capacities than that of C2H4 at 298, 288, and 278 K, such as C2H6 and C2H4 adsorption capacities of 3.8 and 2.9 mmol/g at 298 K and 100 kPa, respectively. In addition, the C2H6 and C2H4 adsorption heats were relatively low and in the corresponding ranges 27.3−25.1 and 26.2−23.8 kJ/mol, which is a favorable property for the regeneration of MIL142A with less energy penalty. Furthermore, it was inferred that the difference between the adsorption heat for C2H6 and C2H4 with the MIL-142A framework governed the selective adsorption of C2H6 over C2H4. The ideal adsorbed solution theory (IAST) selectivity of C2H6/C2H4 was high up to 5.8 in the initial low pressure and then decreased to 1.5 at 298 K and 100 kPa. Besides, breakthrough experiments also corroborated its efficient separation of C2H6/C2H4 mixture. Additionally, MIL-142A had excellent moisture stability, and its framework remained still intact after being exposed to humid conditions (80% RH) for 15 days. These comprehensive properties demonstrated that this unique material MIL-142A, as a high-performance C2H6-selective adsorbent, can be potentially used for highly adsorptive separation of the C2H6/C2H4 mixture.","language":"en","number":"11","urldate":"2020-02-04","journal":"Industrial & Engineering Chemistry Research","author":[{"propositions":[],"lastnames":["Chen"],"firstnames":["Yongwei"],"suffixes":[]},{"propositions":[],"lastnames":["Wu"],"firstnames":["Houxiao"],"suffixes":[]},{"propositions":[],"lastnames":["Lv"],"firstnames":["Daofei"],"suffixes":[]},{"propositions":[],"lastnames":["Shi"],"firstnames":["Renfeng"],"suffixes":[]},{"propositions":[],"lastnames":["Chen"],"firstnames":["Yang"],"suffixes":[]},{"propositions":[],"lastnames":["Xia"],"firstnames":["Qibin"],"suffixes":[]},{"propositions":[],"lastnames":["Li"],"firstnames":["Zhong"],"suffixes":[]}],"month":"March","year":"2018","pages":"4063–4069","bibtex":"@article{chen_highly_2018,\n\ttitle = {Highly {Adsorptive} {Separation} of {Ethane}/{Ethylene} by {An} {Ethane}-{Selective} {MOF} {MIL}-{142A}},\n\tvolume = {57},\n\tissn = {0888-5885, 1520-5045},\n\turl = {https://pubs.acs.org/doi/10.1021/acs.iecr.7b05260},\n\tdoi = {10.1021/acs.iecr.7b05260},\n\tabstract = {In the petrochemical industry, ethane/ethylene (C2H6/C2H4) separation is one of the most important processes. Herein, we reported an iron-based metal−organic framework MIL-142A for efficiently trapping C2H6 from C2H6/C2H4 mixture, exhibiting preferential adsorption of C2H6 over C2H4. After various characterization techniques to confirm the successful preparation of MIL-142A, the C2H6 and C2H4 adsorptive separation performance was systematically investigated. Results showed that MIL-142A had remarkably higher C2H6 adsorption capacities than that of C2H4 at 298, 288, and 278 K, such as C2H6 and C2H4 adsorption capacities of 3.8 and 2.9 mmol/g at 298 K and 100 kPa, respectively. In addition, the C2H6 and C2H4 adsorption heats were relatively low and in the corresponding ranges 27.3−25.1 and 26.2−23.8 kJ/mol, which is a favorable property for the regeneration of MIL142A with less energy penalty. Furthermore, it was inferred that the difference between the adsorption heat for C2H6 and C2H4 with the MIL-142A framework governed the selective adsorption of C2H6 over C2H4. The ideal adsorbed solution theory (IAST) selectivity of C2H6/C2H4 was high up to 5.8 in the initial low pressure and then decreased to 1.5 at 298 K and 100 kPa. Besides, breakthrough experiments also corroborated its efficient separation of C2H6/C2H4 mixture. Additionally, MIL-142A had excellent moisture stability, and its framework remained still intact after being exposed to humid conditions (80\\% RH) for 15 days. 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