H-ZSM-5 Catalyst in Synthesis of Diethylene Glycol Methyl Ether Acetate
- DOI
- 10.2991/meic-14.2014.321How to use a DOI?
- Keywords
- H-ZSM-5; DGMEA; esterification; more porous
- Abstract
Optimizing Si/Al is 25, 38, 50, 80 four kinds of models of Na type molecular sieve, 1 mol/L concentration of ammonium nitrate by immersion, mixing, filtering, by means of the modified roasting, prepared a variety of models of H-ZSM-5 catalyst for synthesis of diethylene glycol methyl ether acetate(DGMEA). Carrier system research H-ZSM-5 zeolite catalyst in diethylene glycol dimethyl ether and direct esterification of acetic acid catalytic activity and preparation method of catalyst, the synthesis of DGMEA optimum conditions and catalyst, improve the raw material conversion rate, using XRD, TEM, FTIR and N2 adsorption-stripping way of catalyst, such as the characterization of the system. Experimental results show that in addition to the reaction temperature, time, alcohol acid mole ratio, catalyst mass, H-ZSM-5 zeolite catalyst, acid strength, stripping rate and competitive system will influence the final reaction of ester yield and selectivity. Under 85~92 temperature, using cyclohexane as dehydrant, alkyd ratio of 1:1.1, catalyst mass was 2 %, bear the load of acid amount was 15 %, 60 minutes, DGMEA yield up to 96.94 %, 100 % acetic acid conversion rate. This is mainly because acid combined with molecular sieve much channel structure play a role in the reaction.
- Copyright
- © 2014, 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 - Shiyao Zhu AU - Gengqiang Zhang AU - Guangyuan Cao AU - Yongjie Wang PY - 2014/11 DA - 2014/11 TI - H-ZSM-5 Catalyst in Synthesis of Diethylene Glycol Methyl Ether Acetate BT - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering PB - Atlantis Press SP - 1425 EP - 1428 SN - 2352-5401 UR - https://doi.org/10.2991/meic-14.2014.321 DO - 10.2991/meic-14.2014.321 ID - Zhu2014/11 ER -