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Lienda Handojo Yudiyanto Michael Dannish Prihartoni Ratna Frida Susanti Yestria Yaswari Anggit Raksajati 《分离科学与技术》2018,53(14):2259-2266
Aqueous amino solvents, such as monoethanolamine (ETA/MEA), methyl diethanolamine (MDEA) or amine blends, are the most widely used solvents in commercial CO2 or acid gas separation applications. These commercial solvents have various disadvantages, such as the possibilities of the solvent to be degraded. This research examines the impact of non-oxidative thermal degradations on the performance of the CO2 absorption and the degradation mechanism of amine solvents. The impact of degradation was conducted by measuring the CO2 solubility of solvent that had been heated to 120°C for 2 h. Although the performance of CO2 absorption was not significantly reduced, the degradation of amines was found. Supported by Fourier Transform Infrared (FTIR) and Gas Chromatography/Mass Spectrometer result, the suspected products of non-oxidative thermal degradation of MDEA were MEA and acetone. 相似文献
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Yansen Hartanto Yestria Yaswari Megawati Zunita Tatang Hernas Soerawidjaja 《分离科学与技术》2017,52(12):1967-1972
Industrial terpineol is commonly manufactured from more readily available turpentine or α-pinene rather than extracting from natural plants or woods. The product of the synthesis results in a dark-color liquid that could reduce the price and limit the use of the product itself. Finding a suitable solid adsorbent that is able to adsorb the impurities could be a better way to solve the problem rather than using energy-demanding process, such as stage-wise distillation. In this study, four different solid adsorbents were tried to decolorize the dark color of synthesized terpineol from α-pinen. Bentonite shows a very promising result as it could alter the color of the liquid into light yellow. Compared to other adsorbents, bentonite performed better at the same particle size and solid loading. The decolorization performance was also influenced significantly by the size of the solid adsorbent. 相似文献
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