红外光谱法用于加氢生产生物柴油过程的监控研究  

MONITORING BIODIESEL HYDROTREATING PROCESS CONDITIONS BY INFRARED SPECTROSCOPY

作　　者：白正伟[1] 李怿[1] 崔凌雁 

机构地区：[1]中国石化炼化工程(集团)股份有限公司工程技术研发中心,河南洛阳471003

出　　处：《石油炼制与化工》2015年第1期97-100,共4页Petroleum Processing and Petrochemicals

摘　　要：采用红外光谱仪对动植物油脂加氢产物进行分析,分别读取2 925,1 745,1 710cm-1附近峰顶的校正吸光度,用波数1 745cm-1和2 925cm-1的校正吸光度之比作为酯烷比,用波数1 710cm-1和2 925cm-1的校正吸光度之比作为酸烷比,以此来监控加氢产物中的脂肪酸酯类、脂肪酸类等化合物的含量。结果表明:酯烷比和酸烷比可有效区分不同工艺条件的加氢深度并用于工艺条件的筛选研究。The products of hydrotreated animal fats or vegetable oils were analyzed by IR spectrome-ter. The corrected height of the peaks at 2 925,1 745,1 710 cm-1 were used to calculate A 1 745？A2 925 ,a ratio of ester to alkane and A 1 710？A2 925 ,a ratio of acid to alkane,which represent the contents of ester and acid in product,respectively. The results show that A 1 745？A2 925 and A 1 710？A2 925 are very effective to differentiate the hydrotreating depth,and can be used to screen the suitable reaction conditions for ani-mal fats or vegetable oils hydrotreating processes.

关 键 词：加氢工艺 红外光谱 生物柴油 酯烷比 酸烷比 

分 类 号：O657.33[理学—分析化学] TE667[理学—化学]