The Application of NIR Process Analytical Chemistry in Studying Competitive Adsorption Process
American Journal of Applied Chemistry
Volume 7, Issue 3, June 2019, Pages: 80-86
Received: Apr. 8, 2019;
Accepted: May 21, 2019;
Published: Jun. 12, 2019
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Hong-Wei Yang, College of Chemistry and Life Science, Chuxiong Normal University, Chuxiong, PR China
Chen-Bo Cai, College of Chemistry and Life Science, Chuxiong Normal University, Chuxiong, PR China
Lu Xu, College of Material and Chemical Engineering, Tongren University, Tongren, PR China
Lun Li, Department of Science and Technology, Chuxiong Normal University, Chuxiong, PR China
Yan-Li Zou, College of Chemistry and Life Science, Chuxiong Normal University, Chuxiong, PR China
Yong-Yuan Tao, College of Chemistry and Life Science, Chuxiong Normal University, Chuxiong, PR China
Mei-Qiong Wen, College of Chemistry and Life Science, Chuxiong Normal University, Chuxiong, PR China
With an experimental setup of near-infrared process analytical chemistry, a competitive adsorption process of orthoxylene and aniline vapor onto silica gel has been revealed in the paper. The mixture vapor of orthoxylene and aniline has been introduced into a quartz adsorption bed, which was filled with adsorbent of silica gel and monitored continuously by a near-infrared spectrometer. Based on near-infrared spectra recorded during the adsorption process and chemometrics methodologies, the competitive adsorption process has been studied completely as well as clearly: 1) at about 62 minutes the adsorption achieved its equilibrium or stable state with aniline concentration of 0.22 g/g, and without any orthoxylene; 2) othoxylene was adsorbed first, but then rapidly replaced by aniline; 3) the adsorption of aniline resulted from the hydrogen bonds between aniline’s amino groups and silica gel’s silanol groups while that of orthoxylene was due to physical adsorption; 4) aniline was adsorbed vertically on the silica gel but orthoxylene laid evenly; 5) some surface of silica gel was more active for adsorption than others.
The Application of NIR Process Analytical Chemistry in Studying Competitive Adsorption Process, American Journal of Applied Chemistry.
Vol. 7, No. 3,
2019, pp. 80-86.
Bartholdy, S.; Bjørner, M. G., Solbraa, E., Shapiro, A.; Kontogeorgis, G. M. Capabilities and limitations of predictive engineering theories for multicomponent adsorption. Industry & Engineering Chemistry Research 2013, 52 (33), 11552–11563.
Sircar, S. Basic research needs for design of adsorptive gas separation processes. Industry & Engineering Chemistry Research 2006, 45 (16), 5435–5448.
Sircar, S. Recent developments in macroscopic measurement of multicomponent gas adsorption equilibria, kinetics, and heats. Industrial & Engineering Chemistry Research 2007, 46 (10), 2917–2927.
Xomeritakis, G.; Tsai, C. Y.; Jeffrey, C. B. Microporous sol-gel derived aminosilicate membrane for enhanced carbon dioxide deparation. Seperation and Purification Technology 2005, 42 (2), 249-256.
Brzić, D.; Petkovska, M. Some practical aspects of nonlinear frequency response method for investigation of adsorption equilibrium and kinetics. Chemical Engineering Science 2012, 82 (12), 62-72.
Rynders, R. M.; Rao, M. B.; Sircar S. Isotope exchange technique for measurement of gas adsorption equilibria and kinetics. AIChE J. 1997, 43 (15), 2456–2463.
Silverwood, I. P.; Keyworth, C. W.; Brown, N. J.; Shaffer, M. S. P.; Williams, C. K.; Hellgardt, K.; Kelsall, G. H.; Kazarian, S. G. An attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopic study of gas adsorption on colloidal stearate-capped ZnO Catalyst Substrate. Applied Spectroscopy 2014, 68 (1), 88-94.
Garrone, E.; Delgado, M. R.; Bonelli, B.; Arean, C. O. Probing gas adsorption in zeolites by variable-temperature IR Spectroscopy: an overview of current research. Molecules 2017, 22 (9) 1557-1565.
Tumuluri, U.; Isenberg, M.; Tan, C. S.; Chuang, S. S. C. In situ infrared study of the effect of amine density on the nature of adsorbed CO2 on amine-functionalized solid sorbents. Langmuir 2014, 30 (25), 7405–7413.
Workman, Jr. J.; Koch, M.; Veltkamp, D. J. Process analytical chemistry. Analytical Chemistry 2003, 75 (33), 2859–2882.
Blanco, M.; Villarroya, I. NIR spectroscopy: A rapid-response analytical tool. Trends in Analytical Chemistry 2002, 21 (1), 4–12.
Workman Jr., J.; Koch, M.; Veltkamp, D. J. Process analytical chemistry. Analytical Chemistry 2005, 77 (12), 3789–3806.
Cai, C. B.; Han, Q. J.; Tang, L. J.; Zhang, Y.; Yu, R. Q. A novel method for studying multicomponent gas uptake on solid adsorbent with near-infrared process analytical technique. Industrial & Engineering Chemistry Research 2008, 47 (18), 6835–6840.
Cai, C. B.; Xu, L.; Zhong, W.; Tao, Y. Y.; Wang, B.; Yang, H. W.; Wen, M. Q. Studying a gas-solid multi-component adsorption process with near-infrared process analytical technique: Experimental setup, chemometrics, adsorption kinetics and mechanism. Chemometrics and Intelligent Laboratory Systems 2015, 144 (1), 80-86.
Trygg, J.; Wold, S. PLS regression on wavelet compressed NIR spectra. Chemometrics and Intelligent Laboratory Systems 1998, 42 (1–2), 209-220.
Cocchi, M.; Corbenllini, M.; Foca, G.; Lucisano, M.; Pagani. M. A.; Tassi, L.; Ulrici, A. Classification of bread wheat flours in different quality categories by a wavelet-based feature selection/classification algorithm on NIR spectra. Analytica Chimica Acta 2005, 544 (1-2), 100-107.
Næs, T; Martens，H. Principal component regression in NIR analysis: Viewpoints, background details and selection of components. Journal of Chemometrics 1988, 2 (2), 155-167.
Chen, Q.; Guo, Z.; Zhao, J.; Qin, O. Comparisons of different regressions tools in measurement of antioxidant activity in green tea using near infrared spectroscopy. Journal of Pharmaceutical and Biomedical Analysis 2012, 60 (1), 92-97.
Marengo, E.; Bobba, M.; Robotti, E.; Lenti, M. Hydroxyl and acid number prediction in polyester resins by near infrared spectroscopy and artificial neural networks. Analytica Chimica Acta 2004, 511 (2), 313-322.
Mayfield, P. L. J.; Do D. D. Measurement of the single-component adsorption kinetics of ethane, butane, and pentane onto activated carbon using a differential adsorption bed. Industry & Engineering Chemistry Research 1991, 30 (3), 1262-1268 1262–1268.
Workman, Jr. J.; Weyer, L. Practical guide to interpretive near-infrared Spectroscopy (Chinese edition). Chemical Industry Press: Beijing, 2009.
Cai, C. B.; Han, Q. J.; Tang, L. J.; Xu, L.; Wu, H. L.; jiang, J. H.; Yu, R. Q. The spatial effect of near-infrared spectroscopy and its application to the study of supramolecular chemistry. Talanta 2009, 78 (2), 337-341.