催化裂化催化剂的研究进展

Research progress on catalytic cracking catalysts

重质油催化裂化生成汽油、柴油的过程是采用裂化技术,且结合催化剂的作用完成的。我国原料油中重质油的含量较高,但汽油、柴油等轻质油的使用价值较高,催化裂化技术能使重质油轻质化,在石油化工生产中占有相当重要的地位,目前有相当多的汽油和柴油是催化裂化的目的产物。无论是进口的原料油还是我国现有的原料油,当中都含有多种重金属元素,特别是钒元素和镍元素在再生器中相结合产生的重金属污染,已经成为催化裂化中的最重要的问题,这些物质在催化剂的表面会产生影响,不利于最终产物的生成。文章通过介绍各种方法降低原料油对催化剂产生的影响,将其作为提高催化剂性能的切入点,从而展开研究,更好地对如何提高催化裂化类催化剂的性能进行分析、探究。

The process of catalytic cracking of heavy oil to generate gasoline and diesel oil is based on the cracking technology and the effect of the catalyst.The content of heavy oil in China's feedstock oil is relatively high,but the use value of light oil such as gasoline and diesel oil is higher.FCCU can make heavy oil lighter and occupy a rather important position in petrochemical production.A considerable amount of gasoline and diesel are the products of catalytic cracking.Both the imported raw oil and the existing feedstock in our country contain many kinds of heavy metal elements,especially the heavy metal pollution caused by the combination of vanadium element and nickel element in regenerator has become the most important issue in catalytic cracking.These substances in the catalyst surface will have an impact,is not conducive to the formation of the final product.By introducing various methods to reduce the impact of feedstock on the catalyst,the article as an entry point to improve the performance of the catalyst,so as to start a study to better analyze how to improve the catalytic cracking catalyst performance.