RFCC汽油氨水液-液脱臭法  

A METHOD OF REMOVING THIOL FROM RFCC GASOLINE BY LIQUID-LIQUID EXTRACTION USING AQUA AMMONIA

作　　者：史英君[1] 

机构地区：[1]中国石油化工股份有限公司济南分公司,济南250101

出　　处：《石油炼制与化工》2009年第11期16-19,共4页Petroleum Processing and Petrochemicals

摘　　要：提出了一种重油催化裂化(RFCC)汽油氨水液液脱臭新方法。以中国石化济南分公司RFCC汽油为原料,在常温、常压、以26%～28%的氨水为溶剂、在油中加入B32助剂10μg/g(占汽油)、在氨水中加入C32催化剂15μg/g(占汽油)、氨水用量为0.6%(占汽油质量分数)、沉降时间约为5 h的条件下可使催化裂化汽油的博士试验合格,并且对汽油其它指标无不良影响。氨水液-液脱臭法的最大优点为原料油不需要进行预碱洗,且操作费用低廉,氨水可回收利用。A new method of removing thiol from RFCC naphtha by liquid-liquid extraction using aqua ammonia was introduced. Results showed that at ambient temperature and atmospheric pressure,using naphtha from RFCC unit of SINOPEC Jinan Company as feed and 26%- 28% ammonia as solvent,under the conditions of a solutizer（B32）dosage of 10μg/g（based on feed）,a catalyst dosage of 15 μg/g（based on feed）, an ammonia amount of 0.6% （based on feed mass fraction）and a separation time of 5 h, the doctor test of the treated gasoline was qualified, and without negative effect on its other properties. In this method, pre-alkali washing of feed was omitted, and the aqua ammonia could be recovered and reused, which significantly reduced the operation fee.

关 键 词：RFCC 汽油 硫醇硫 催化剂 氨水 脱臭 

分 类 号：TE624.5[石油与天然气工程—油气加工工程]