响应曲面法优化废弃食用油脂脱色工艺  

Optimization of Decolorization Process of Waste Edible Oil by Response Surface Methodology

作　　者：谷风 翦英红[1,2] 刘虹 GU Feng;JIAN Ying-hong;LIU Hong(School of Resources and Environmental Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China;Jilin Key Engineering Research Center of Water Treatment,Jilin Institute of Chemical Technology,Jilin 132022,China)

机构地区：[1]吉林化工学院资源与环境工程学院,吉林吉林132022 [2]吉林化工学院水处理吉林省重点工程研究中心,吉林吉林132022

出　　处：《化学试剂》2020年第12期1446-1452,共7页Chemical Reagents

基　　金：国家自然科学基金资助项目(41302185);吉林省科技厅项目(20120410);吉林省生态环境厅项目(20190009)。

摘　　要：以盐酸酸化凹凸棒土为脱色剂,对废食用油进行脱色。通过单因素实验找到最佳脱色条件,并在此基础上,以凹凸棒土盐酸酸化浓度、酸化凹凸棒土使用量、脱色温度、脱色时间为考察因素,以废食用油脱色率为响应参数,使用响应面方法进行优化设计。结果表明,在最优化状态下的脱色条件为:脱色剂(酸化凹凸棒土)酸化浓度3.0 mol/L、脱色剂(酸化凹凸棒土)使用量15.6%、脱色温度111.0℃、脱色时间23.0 min,在此条件下测得废食用油脱色率最高可达87.63%,脱色后的废食用油接近无色。该方法耗费低廉、简便高效,脱色剂容易再生利用、对环境友好,可用于废弃油脂资源化利用的前期处理。Hydrochloric acid attapulgite was used as decoloring agent,the waste edible oil was decolorized.The optimum decolorization conditions were found by single factor test,and on this basis,the response surface method was used to optimize the design of attapulgite acidizing concentration,acidizing attapulgite usage,decolorization temperature and decolorization time.The decolorization conditions were as follows:decolorizer(acidizing attapulgite)acidizing concentration 3.0 mol/L,decolorizer(acidizing attapulgite)usage 15.6%,decolorization temperature 111.0℃,decolorization time 23.0 min.Under this condition,the decolorization rate of waste edible oil can reach 87.63%,and the waste edible oil after decolorization is close to colorless.The method is cheap,simple and efficient,easy to reuse and environment-friendly,and can be used in the early treatment of waste oil resource utilization.

关 键 词：废食用油 酸化凹凸棒土 脱色 脱色率 响应面优化 

分 类 号：TS224.2[轻工技术与工程—粮食、油脂及植物蛋白工程]