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Title: Extraction Rate and Energy Efficiency of Supercritical Carbon Dioxide Recovery of Higher Alcohols from Dilute Aqueous Solution

Authors:
 [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3]; ORCiD logo [1]
  1. Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester MA 01609 USA
  2. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge MA 02142 USA
  3. Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge MA 02142 USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1419895
Grant/Contract Number:
SC0012555
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Energy Technology
Additional Journal Information:
Related Information: CHORUS Timestamp: 2018-02-08 02:13:06; Journal ID: ISSN 2194-4288
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Tompsett, Geoffrey A., Boock, Jason T., DiSpirito, Cameron, Stolz, Eric, Knutson, David R., Rivard, Allison G., Overdevest, Mark R., Conlon, Chelsea N., Prather, Kristala L. J., Thompson, Janelle R., and Timko, Michael T. Extraction Rate and Energy Efficiency of Supercritical Carbon Dioxide Recovery of Higher Alcohols from Dilute Aqueous Solution. Germany: N. p., 2018. Web. doi:10.1002/ente.201700626.
Tompsett, Geoffrey A., Boock, Jason T., DiSpirito, Cameron, Stolz, Eric, Knutson, David R., Rivard, Allison G., Overdevest, Mark R., Conlon, Chelsea N., Prather, Kristala L. J., Thompson, Janelle R., & Timko, Michael T. Extraction Rate and Energy Efficiency of Supercritical Carbon Dioxide Recovery of Higher Alcohols from Dilute Aqueous Solution. Germany. doi:10.1002/ente.201700626.
Tompsett, Geoffrey A., Boock, Jason T., DiSpirito, Cameron, Stolz, Eric, Knutson, David R., Rivard, Allison G., Overdevest, Mark R., Conlon, Chelsea N., Prather, Kristala L. J., Thompson, Janelle R., and Timko, Michael T. 2018. "Extraction Rate and Energy Efficiency of Supercritical Carbon Dioxide Recovery of Higher Alcohols from Dilute Aqueous Solution". Germany. doi:10.1002/ente.201700626.
@article{osti_1419895,
title = {Extraction Rate and Energy Efficiency of Supercritical Carbon Dioxide Recovery of Higher Alcohols from Dilute Aqueous Solution},
author = {Tompsett, Geoffrey A. and Boock, Jason T. and DiSpirito, Cameron and Stolz, Eric and Knutson, David R. and Rivard, Allison G. and Overdevest, Mark R. and Conlon, Chelsea N. and Prather, Kristala L. J. and Thompson, Janelle R. and Timko, Michael T.},
abstractNote = {},
doi = {10.1002/ente.201700626},
journal = {Energy Technology},
number = ,
volume = ,
place = {Germany},
year = 2018,
month = 2
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 8, 2019
Publisher's Accepted Manuscript

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  • Distribution coefficients and selectivities of a number of mixed solvent systems have been determined in order to assess their suitability in preferentially extracting ethanol from aqueous solution. The measured values of distribution coefficients and selectivities differ substantially from the values estimated by interpolating between the pure solvents. (Refs. 10).
  • Supercritical fluid technologies as alternative methodologies to conventional procedures are being explored for the direct extraction of acidic and polar contaminants from aqueous matrices. In support of the knowledge required to implement these novel methods, the partitioning of pentachlorophenol between water and liquid and supercritical CO{sub 2} has been characterized by determining distribution coefficients at (18.8, 41.7, and 59.8) C from a saturated water solution (11.6 {times} 10{sup {minus}6} g/g solvent). The partitioning of pentachlorophenol from dilute solution (1.27 {times} 10{sup {minus}6} g/g solvent) was measured at 42.2 and 59.9 C. Distribution coefficients were lower at this reduced concentration. Measurementsmore » were made at pressures up to about 280 bar. Comparison of the partitioning data to the solubility ratio of the solute in both phases contributes to the interpretation of relevant interactions in this complex system.« less
  • Two separation processes have been developed to remove contaminants (cutting oil with trace phosphorus additive) from high-speed steel grinding sludge. One process uses an aqueous surfactant washing technique, and the second process uses supercritical carbon dioxide (SCCO{sub 2}) extraction. Bench-scale aqueous washings have shown that the required phosphorus removal is easily obtained, but a sufficient oil removal is more difficult. The experimental results also indicate a strong dependence of the aqueous washing efficiency on the choice of a suitable surfactant. A mass transfer model is used to simulate a semi-continuous washing process. SCCO{sub 2} extraction at 80 C and 340more » atm shows that approximately 80% of the oil can be removed from the sludge during a 60-minute process to produce a batch of recyclable steel, and that the phosphorus removal also reaches the required level. A linear desorption model is used to describe the irreversible desorption of oil from the solid phase into the CO{sub 2} phase, and the simulated results agree very well with the experimental data.« less
  • Uranyl ions (UO2)2+ in aqueous nitric acid solutions can be extracted into supercritical CO2 (sc-CO2) via an imidazolium-based ionic liquid using tri-n-butylphosphate (TBP) as a complexing agent. The transfer of uranium from the ionic liquid to the supercritical fluid phase was monitored by UV/Vis spectroscopy using a high-pressure fiberoptic cell. The form of the uranyl complex extracted into the supercritical CO2 phase was found to be UO2(NO3)2(TBP)2. The extraction results were confirmed by UV/Vis spectroscopy and by neutron activation analysis. This technique could potentially be used to extract other actinides for applications in the field of nuclear waste management.
  • The feasibility of using supercritical carbon dioxide as a substitute extraction solvent in nuclear reprocessing was tested by the extraction of lanthanide ions from acidic solution. Lanthanides were extracted from 6 M HNO[sub 3]-3 M LiNO[sub 3] solutions using tributyl phosphate- (TBP-) modified CO[sub 2]. Synergistic effects were also investigated using a combination of thenoyltrifluoroacetone (TTA) and TBP-modified CO[sub 2] as the extractant. It was found that near-quantitative extraction of Sm[sup 3+], Eu[sup 3+], Gd[sup 3+], and Dy[sup 3+] was achieved while the extraction efficiencies for La[sup 3+], Ce[sup 3+], Yb[sup 3+], and Lu[sup 3+] were much lower. The lightmore » lanthanides extracted as Ln(NO[sub 3])[sub 3][center dot]3TBP and the heavy lanthanides extracted as Ln(NO[sub 3])[sub 3][center dot]2TBP when TBP-modified CO[sub 2] was used as the extractant, while Ln(TTA)[sub 3][center dot] 3TBP and Ln(TTA)[sub 3][center dot]2TBP adducts were extracted when TTA was added to TBP-modified CO[sub 2]. 17 refs., 1 fig., 3 tabs.« less