环保型催化裂化多功能助剂的开发  

DEVELOPMENT OF ENVIRONMENTALLY FRIENDLY CATALYTICCRACKING MULTIFUNCTIONAL ADDITIVE

作　　者：李博 杨淑萍 王家华 高永福 孙世林 张海涛 Li Bo;Yang Shuping;Wang Jiahua;Gao Yongfu;Sun Shilin;Zhang Haitao(Lanzhou Petrochemical Research Center,PetroChina Petrochemical Research Institute,Lanzhou 730060;Research Institute of SINOPEC Maoming Company)

机构地区：[1]中国石油石油化工研究院兰州化工研究中心,兰州730060 [2]中国石化茂名分公司研究院

出　　处：《石油炼制与化工》2025年第4期107-113,共7页Petroleum Processing and Petrochemicals

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目(22-yk-10-01)。

摘　　要：为了抑制催化裂化过程中重金属对催化剂的毒害,并改善产品分布,选用无毒组分,成功开发了一种制备简单、高效环保的催化裂化多功能助剂。通过程序升温还原、N_(2)吸附-脱附、X射线衍射等手段,对该多功能助剂的作用机理进行了研究,进一步在催化裂化提升管装置考察了助剂的性能。结果显示,该助剂的有效组分可以与Ni^(2+)发生晶格取代作用,减缓Ni 0的生成;抑制V污染的机理在于其有效成分可以与V_(2)O_(5)生成高热稳定性化合物,减弱了V_(2)O_(5)在微化剂孔道内的迁移和钒酸对催化剂结构的破坏。该多功能助剂可以使催化裂化装置干气产率下降0.4百分点,氢气产率下降15.8%,焦炭产率下降1.09百分点,重油产率下降0.45百分点,汽油收率上升2.18百分点,整体轻油收率提高2.87百分点,展现了良好的抑制镍、钒污染和改善产品分布的效果。In order to inhibit the poison of heavy metals to catalytic cracking catalysts and improve product distribution,a simple,efficient and environmentally friendly multifunctional additive for catalytic cracking was successfully developped with non-toxic components.The action mechanism of the multifunctional additive was studied by TPR,BET,XRD and other methods,and the performance of the additive was further investigated in the catalytic cracking unit with riser reactor.The results showed that the additive can inhibit Ni contamination because its effective components undergo lattice substitution with Ni^(2+),slowing down the formation of Ni 0;and the effective components can interact with V_(2)O_(5)to generate highly thermally stable compounds,weakening the migration of V_(2)O_(5)within the catalyst pores and the damage of vanadium acid to the catalyst structure.This multifunctional additive,used in catalytic cracking unit,can reduce the dry gas yield by 0.4 percentage point,hydrogen yield by 15.8%,coke yield by 1.09 percentage points,and heavy oil yield by 0.45 percentage point.At the same time,the gasoline yield increased by 2.18 percentage points and the overall light oil yield increased by 2.87 percentage points.It showed good effect of inhibiting nickel and vanadium contamination and improving product distribution.

关 键 词：催化裂化 镍 钒 多功能助剂 

分 类 号：TE6[石油与天然气工程—油气加工工程]