费-托合成油生产液体蜡和基础蜡原料的技术

PRODUCTION TECHNOLOGY OF LIQUID WAX AND BASE WAX FROM FISCHER-TROPSCH SYNTHETIC OIL

以费-托合成油为原料,开发了深度脱氧及分子筛脱蜡工艺生产液体蜡以及基础蜡原料的相关技术。新开发的加氢精制催化剂具有高脱氧活性,在中压及相对缓和的工艺条件下,对费-托合成油进行加氢精制得到的产品氧质量分数小于5.0μg g,色号(赛波特)大于+30,其中间馏分可以作为液体蜡原料,尾油馏分可以作为基础蜡原料。分子筛脱蜡试验结果表明:分离得到的轻液体蜡中正构烷烃质量分数为99.255%,高于GB T 32066—2015规定的下限(98.5%);分离得到的重液体蜡中正构烷烃质量分数为99.441%,远高于GB T 32066—2015规定的下限(95%)。

Based on Fischer-Tropsch synthetic oil,the technologies of deep deoxygenation and molecular sieve dewaxing for producing liquid wax and base wax were developed.The newly developed hydrofinishing catalyst has high deoxidizing activity.Under medium pressure and relatively mild process conditions,the product obtained from the hydrofining of Fischer-Tropsch synthetic oil has the oxygen content of less than 5.0μg g and the chromaticity(Cyberport)of more than+30.The middle fraction can be used as a feedstock for liquid wax,and the tail oil fraction can be used as a feedstock for base wax.The results of molecular sieve dewaxing test showed that the mass fraction of n-alkanes in the separated light liquid wax was 99.255%,which was higher than the lower limit(98.5%)specified in GB T 32066—2015;the mass fraction of n-alkanes in the separated heavy liquid wax was 99.441%,which was much higher than the lower limit(95%)specified in GB T 32066—2015.