摘要
利用自制的PDMS平板复合膜 ,在 40℃ ,1330Pa下游侧压力下 ,φ(C2 H5OH) =11 5 %的红葡萄酒经过渗透蒸发脱醇后可获得 φ(C2 H5OH) =7%、4%、3%等各种低醇红葡萄酒 ,同时渗透液可勾兑成 φ(C2 H5OH) =30 %~ 5 0 %的高醇白兰地 ,平均总渗透通量达 145 5 g/(m2 ·h)。在小试实验中 ,低醇葡萄酒和高醇白兰地的平均生产强度分别是 4830和 780mL/(m2 ·h)。国家资深评酒专家对两种新酒品都给予了高度评价 ,认为有一定的市场经济价值。
A novel flat composite PDMS membrane was used to remove ethanol from wines with φ(C 2H 5OH)=11.5% by pervaporation.At 40 ℃ and 1330 Pa downstream pressure.New wines with φ(C 2H 5OH)=7%,4% and 3% were obtained in varied operation period, and the dialysate can also be used to produce high-alcohol beverage such as brandy with φ(C 2H 5OH)=30%-50%.The average total permeation flux reached 1455 g/(m 2·h).In the miniature industry experiment,the throughput of new low-alcohol wine and high-alcohol brandy reached 4830 and 780 mL/(m 2·h)respectively.Some qualified testers gave marvelous comments on the results.Experiments indicate that wine dealcoholization by pervaporation is greatly promising and has an excellent application perspective in wine industry.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2003年第2期69-71,104,共4页
Fine Chemicals