Research on Rapid Measurement of Methanol in Immobilized Lipase Synthesis of Biodiesel Based on Near Infrared Technology
- DOI
- 10.2991/jimec-18.2018.12How to use a DOI?
- Keywords
- methanol content; near infrared technology; rapid measurement; biodiesel; immobilized lipase
- Abstract
Aiming at the measurement of methanol content during the synthesis of methyl oleate from methanol and oleic acid with immobilized lipase in solvent-free and non aqueous media, a rapid measurement method of "centrifugation-near infrared(NIR) transmission" was proposed and a portable NIR transmission measurement system for methanol content was designed. The linear relationship between the methanol content and the absorbance of solution based on Lambert-Beer law was established. The experimental results demonstrate that this measurement system is stable and reliable with methanol content in actual work range of 0~25%, the root mean square error (RMSE) between the measured value and real value is 1.036, and the relative standard deviation (RSD) of the sample data is 1.06%~7.58%. A mathematical model was established with partial least squares (PLS) in the spectral range of 4500~9000 cm-1, six groups of samples with different methanol content were measured and the RMSE between the measured value of this system and the PLS model prediction is 0.263. It provides an effective measurement technology which contributes to increase the conversion and efficiency in biodiesel synthesis.
- Copyright
- © 2019, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Ji Li AU - Jian Xing AU - Guohua Chen AU - Senshen Yu PY - 2018/12 DA - 2018/12 TI - Research on Rapid Measurement of Methanol in Immobilized Lipase Synthesis of Biodiesel Based on Near Infrared Technology BT - Proceedings of the 2018 3rd Joint International Information Technology,Mechanical and Electronic Engineering Conference (JIMEC 2018) PB - Atlantis Press SP - 54 EP - 58 SN - 2589-4943 UR - https://doi.org/10.2991/jimec-18.2018.12 DO - 10.2991/jimec-18.2018.12 ID - Li2018/12 ER -