Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/74434
Title: A compact reactor-pump-cell-injection system for in-situ / on-line spectroscopic studies
Authors: Gao, F.
Chuanzhao, L.
Garland, M. 
Keywords: FTIR
Heterogeneous catalysis
Homogeneous catalysis
In-situ
Issue Date: 2004
Source: Gao, F.,Chuanzhao, L.,Garland, M. (2004). A compact reactor-pump-cell-injection system for in-situ / on-line spectroscopic studies. AIChE Annual Meeting, Conference Proceedings : 10531-10536. ScholarBank@NUS Repository.
Abstract: Compact reaction systems for exploratory studies, over wide pressure intervals, are essential in many applications. This is particularly true for studies involving very expensive reagents and isotopes. The system was used for heterogeneous catalysis, with a chiral fixed bed reactor. The system consisted of a 25ml 2-phase stirred-tank(gas, liquid), liquid phase pump, a fixed bed reactor with small amount of catalyst, in-situ IR high pressure cell, in-line HPLC injection valves and recycle transfer lines. The potential of this new experimental setup was demonstrated using the example of asymmetric heterogeneous hydrogenation of acetophenone. Quantitative evaluation of the reagent, product by the in-situ FTIR measurement allowed simultaneous determination of reaction kinetics.The system was also use for homogeneous catalysis. A 100ml 2-phase stirred-tank was used instead of a volume of 25 in the heterogeneous catalysis. Good kinetic data were achieved.The new systems allowed easy perturbations and sample acquisition. Also, isotopic work is more easily performed.
Source Title: AIChE Annual Meeting, Conference Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/74434
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