酚类化合物对FCC汽油储存安定性的影响

石油化工高等学校学报 ›› 2009, Vol. 22 ›› Issue (1): 13-16.

酚类化合物对FCC汽油储存安定性的影响

吴世逵¹, 黄克明¹, 梁朝林¹, 曹冠璟²

1.茂名学院化工与环境工程学院，广东茂名 525000；
2.中国石化股份有限公司茂名分公司，广东茂名525000

收稿日期:2008-03-03 修回日期:2008-10-10 出版日期:2009-03-25 发布日期:2009-03-25
作者简介:吴世逵(1965 -), 男, 广东陆丰市, 教授, 硕士
基金资助:
中国石化股份有限公司茂名分公司科技攻关项目(20009987)

Effects of Phenols on Storage Stability of FCC Gasoline

1.Chemical and Environmental Engineering,School of Maoming University, Maoming Guangdong 525000,P.R.China;

2.Maoming Company,SINOPEC, Maoming Guangdong 525000,P.R.China

Received:2008-03-03 Revised:2008-10-10 Published:2009-03-25 Online:2009-03-25

摘要/Abstract

摘要： 通过对催化裂化(FCC)汽油组成、诱导期、吸光度等性质指标的跟踪测试，分析了酚类化合物对 FCC 汽油安定性的影响规律。结果表明，酚类化合物既是抗氧剂、又是 FCC汽油生胶变色的酸性催化剂，酚含量越大的汽油诱导期越长、且油品变色也越快。含酚质量分数大于 200μg/ g时，汽油诱导期随着二烯值的增大而降低，储存吸光度随着二烯值、碱性氮含量的增大而增加；含酚质量分数小于120μg/g时，汽油颜色稳定、诱导期短，二烯值在0 .7～2 .6 g(I ₂) / (100 g)的各种FCC汽油的储存吸光度、诱导期变化不大。可通过优化催化原料、控制预碱洗深度、优化汽油调合、添加抗氧防胶剂等措施调节酚含量、提高汽油的储存安定性。

关键词: 催化裂化汽油 , 诱导期 , 吸光度 , 酚类化合物

Abstract:

Based on the test data correlation of the FCC gasoline composition, induction period and absorbance, influence law of phenols on storage stability of FCC gasoline were analyzed. The results show that the phenols compounds in the FCC gasoline are antioxidant and acidic catalyst of creating color and resins. The more phenols in the FCC gasoline, the longer the induction period is and the faster the color do. When phenols content in the FCC gasoline is more than 200 μg/g, induction period of FCC gasoline is decrement as diene number increment; and storage absorbance is increment as both diene number and basic nitrogen increment. Otherwise phenols content is less than 120 μg/g, the FCC gasoline color is steady，but induction period is shorter. The change of gasoline storage absorbance or induction period is smaller, when the diene value is from 0.7 to 2.6 g(I2)/(100 g). The phenols content is controlled by optimizing catalytic feed, controlling basic pre-wash deepness and optimizing various gasoline blend as well as adding antioxidant, so storage stability of gasoline is improved.

Key words: FCC gasoline , Induction period , Absorbance , Phenols

吴世逵,黄克明,梁朝林,曹冠璟2. 酚类化合物对FCC汽油储存安定性的影响[J]. 石油化工高等学校学报, 2009, 22(1): 13-16.

WU Shi-kui，HUANG Ke-Ming，LIANG Chao-lin，CAO Guang-Jing. Effects of Phenols on Storage Stability of FCC Gasoline[J]. Journal of Petrochemical Universities, 2009, 22(1): 13-16.

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