油茶籽油精炼过程中苯并[a]芘风险控制技术研究

研究了油茶籽油加工过程中苯并a]芘风险控制技术。本文以传统生产工艺的压榨原油、脱色油、成品油和浸提毛油为研究对象,除压力外,模拟油茶籽油加工过程中的精炼工艺流程工况,设计了苯并a]芘风险控制技术实施方案,并用苯并a]芘残留量作为评价指标。结果表明：4种试验油均不同程度地存在苯并a]芘,尤以压榨原油含量最高。常规脱色工艺不致油茶籽油中苯并a]芘含量增加,而高温脱臭工艺则会使油茶籽油中苯并a]芘含量显著增加。脱色工艺中用传统的5%活性白土与0.5%硅藻土分别处理均不能去除苯并a]芘。用1%活性炭与助滤剂硅藻土配伍去除苯并a]芘效果最好。

Risk Control Technology of Benzo [a] Pyrene in Process of Camellia Seed Oil

Risk control technology of benzo а] pyrene in process of camellia seed oil was studied. Taking squeeze crude oil, bleaching oil, refined oil and extracted crude oil as study objects, in addition to pressure, refining process conditions of camellia seed oil refining were simulated, implementation scheme of benzo а] pyrene risk control technology was designed, and benzo а] pyrene residue was taken as evaluation index. Results showed that four kinds of samples existed in different degree of benzo а] pyrene, and squeeze crude oil was the highest. Benzo а] pyrene residue could without increasing with conventional bleaching process, but it had been a significant increase with high temperature deodorization techniques. Benzo а] pyrene residue could not be adsorption with 5% activated clay or 0.5% diatomite in traditional filtration decoloring process. It had the best effect for benzo а] pyrene remove with 1% activated carbon and diatomite filter aid.