钙对劣质重油接触裂化接触剂性能的影响

石油炼制与化工 ›› 2014, Vol. 45 ›› Issue (4): 14-18.

钙对劣质重油接触裂化接触剂性能的影响

朱元宝,王子军,朱玉霞,汪燮卿

中国石化石油化工科学研究院

收稿日期:2013-08-01 修回日期:2013-12-10 出版日期:2014-04-12 发布日期:2014-03-24
通讯作者: 朱元宝 E-mail:zhuyuanbao_11@126.com
基金资助:
国家重点基础研究发展计划（973）项目;国家科技支撑计划项目

EFFECT OF CALCIUM ON RESIDUE CONTACT CRACKING CATALYST

Received:2013-08-01 Revised:2013-12-10 Online:2014-04-12 Published:2014-03-24

摘要/Abstract

摘要： 选用劣质重油裂化接触剂，采用BET，NH3-TPD，IR，SEM-EDX等手段对不同钙污染水平的接触剂进行表征分析，利用轻油微反装置测定不同钙污染量接触剂的微反活性指数，利用固定流化床评价装置对钙污染接触剂进行重油裂化性能评价。结果表明:接触剂经钙污染后其比表面积、孔体积有所下降，孔径分布变化不大，而总酸量、微反活性指数减少较多；环烷酸钙源污染钙可以进入到接触剂的体相中，且分布均匀；钙污染接触剂使塔河常压渣油裂化产物分布变化显著。

Abstract: The cracking contact catalyst contaminated by different amount of calcium was studied by BET, NH3-TPD, FT-IR, SEM-EDX. The contaminated catalyst samples were evaluated in a micro-reactor and a fixed-fluidized bed reactor. The results show that both the specific surface area and the pore volume decrease because of pollution. The total acid number and micro-activity of contaminated catalysts decrease even more. However, the pore size distribution suffers no changes. The calcium from calcium naphthenate deposits evenly in the bulk phase of the contact catalysts. The calcium contamination can make Tahe AR FCC product change significantly.

朱元宝王子军朱玉霞汪燮卿. 钙对劣质重油接触裂化接触剂性能的影响[J]. 石油炼制与化工, 2014, 45(4): 14-18.