期刊
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
卷 96, 期 9, 页码 2014-2024出版社
WILEY
DOI: 10.1002/cjce.23156
关键词
lard oil hydrolysis; fatty acids; heterogeneous catalyst; membrane separation
资金
- National Natural Science Foundation of China [21376176]
- Natural Science Foundation of Shandong Province [ZR2013BL010, ZR2015EL044]
- Zibo City Integration Development Project [2016ZBXC116]
An integrated process of catalytic hydrolysis and membrane separation was developed for fatty acids (FAs) production from lard oil. Both sulphonated cation exchange resin (SCER) and 0.98g/g H2SO4 as catalysts were used to produce fatty acids (FAs) from lard oil by three-step hydrolysis, respectively. Simultaneously, polyethersulphone (PES) ultrafiltration membrane was employed to separate glycerol and water from the products. The hydrophilicity and morphology of the pristine and used PES membranes were characterized by contact angle measurement and field-emission scanning electronic microscopy, respectively. The final optimal yields of FAs obtained by SCER and H2SO4 catalysis at 100 degrees C and atmospheric pressure were 85.6% at 16.0h of operation and 94.5% at 18.0h of operation, respectively. Furthermore, the yield of FAs obtained from an integrated process of SCER-catalyzed hydrolysis and membrane separation achieved up to 99.9% at 10.0h, 90 degrees C, and operating pressure of 100kPa.
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