Premium
An integrated process of catalytic hydrolysis and membrane separation for fatty acids production from lard oil
Author(s) -
Lv Enmin,
Ding Shaoxuan,
Lu Jie,
Du Lixiong,
Li Zhuang,
Li Jianxin,
Zhang Shuguang,
Ding Jincheng
Publication year - 2018
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23156
Subject(s) - ultrafiltration (renal) , hydrolysis , catalysis , membrane , chemistry , yield (engineering) , glycerol , chromatography , cationic polymerization , corn oil , organic chemistry , materials science , biochemistry , food science , metallurgy
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 0.98 g/g H 2 SO 4 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 H 2 SO 4 catalysis at 100 °C and atmospheric pressure were 85.6 % at 16.0 h of operation and 94.5 % at 18.0 h 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 10.0 h, 90 °C, and operating pressure of 100 kPa.