抗焦活化剂Z-18在尼日尔炼厂重油催化裂化的工业应用效果

发布时间：2018-01-08 03:20

本文关键词：抗焦活化剂Z-18在尼日尔炼厂重油催化裂化的工业应用效果　出处：《化工进展》2016年S2期 　论文类型：期刊论文

【摘要】：提高重油加工深度、增加轻质油收率是炼厂扩能增效的重要途径。抗焦活化剂通过抑制胶质沥青质聚集、调节催化剂酸性中心以及抑制过量自由基反应等作用,减少了催化裂化反应过程中热裂化和缩合反应的发生,可有效降低重油催化裂化焦炭产率,提高轻质油收率。本文跟踪考察了抗焦活化剂Z-18在尼日尔炼厂重油催化裂化装置上的工业应用效果。工业应用结果表明,Z-18具有明显的抗焦效果,应用后新鲜催化剂的平均单耗为989.0mg/kg,低于1150mg/kg的设计消耗指标;在原料性质变差的工况下重油催化裂化装置焦炭产率降低了0.2个百分点,轻质油收率增加了1.09个百分点,产品质量未发生明显变化。抗焦活化剂Z-18的应用可以使重油催化裂化装置产生较好的经济效益。
[Abstract]:To improve the heavy oil processing depth, increase the yield of light oil is an important way to refinery expansion efficiency. Anti coke activator by inhibiting asphaltene aggregation, adjusting the acidity of the catalyst center and inhibit the excessive free radical reaction effect, reduce the thermal cracking and condensation reactions during the catalytic cracking reaction occurs, can effectively reduce the coke yield of heavy oil catalytic cracking and increase the yield of light oil. This paper studied the anti coke activator Z-18 in Niger refinery RFCC unit in industrial application. The industrial application results show that Z-18 has obvious anti coking effect, after the application of the average consumption of fresh catalyst is 989.0mg/kg, less than 1150mg/kg in the raw material consumption index design; variable properties of heavy oil yield under the condition of poor catalytic cracking device of coke decreased 0.2 percentage points, the light oil yield increased by 1.09 percentage points, product quality is not The application of the anti focus activator Z-18 can make the catalytic cracking unit of heavy oil produce better economic benefits.

【作者单位】：中国石油兰州石化公司炼油厂;
【分类号】：TE624.41
【正文快照】： 催化裂化是目前石油炼制工业中最重要的二次加工过程,也是重油轻质化的核心工艺,在炼油工业中长期处于核心地位。催化裂化是重质油在500℃左右、酸催化作用下发生以裂化反应为主的一系列化学反应,生成轻质油和气体产品的过程[1]。在裂化反应过程中同时伴随着缩合反应的发生进

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