| 稀土改性Y型分子筛的研究 |
| |
| 引用本文： | 王栋,樊红超,翟佳宁,杨旭,石晓庆,姜健,张忠东.稀土改性Y型分子筛的研究[J].石化技术与应用,2013(6):489-492. |
| |
| 作者姓名： | 王栋 樊红超 翟佳宁 杨旭 石晓庆 姜健 张忠东 |
| |
| 作者单位： | [1]中国石油兰州化工研究中心,甘肃兰州730060 [2]中国石油兰州石化公司催化剂厂,甘肃兰州730060 |
| |
| 基金项目： | 中国石油天然气股份有限公司资助项目（项目编号：PRIRLZ31.01-2008） |
| |
| 摘 要： | 以NaY分子筛为原料，氯化镧溶液为交换液，制备了LaNaY型分子筛，以此为基础制备出相应的催化裂化催化剂，并借助x射线衍射法和红外光谱法对LaNaY型分子筛的性能进行了表征。结果表明，随着交换浆液pH值的提高，镧离子可与NaY分子筛方钠石笼中的钠离子进行交换，从而定位于其中；交换浆液最佳pH值为3．5—4．5。随着焙烧温度的升高，LaNaY型分子筛结晶度及其保留率均增加，相应的催化剂微反活性也提高。LaNaY型分子筛最佳焙烧温度为450—550℃。
|
| 关 键 词： | LaNaY型分子筛 镧 改性 催化剂 结晶度 焙烧温度 微反活性 |
Research of zeolite Y modified by rare earth |
| |
| Affiliation: | WANG Dong , FAN Hong - chao , ZHAI Jia - ning , YANG Xu, SHI Xiao - qing , JIANG Jian , ZHANG Zhong - dong ( 1. Lanzhou Petrochemical Research Center, PetroChina, Lanzhou 730060, China ; 2. Catalyst Plant of Lanzhou Petrochmical Company, PetroChina , Lanzhou 730060, China ) |
| |
| Abstract: | LaNaY zeolite was prepared with NaY zeolite as raw material, lanthanum chloride solution as exchange medium. Based on this LaNaY zeolite, catalytic cracking catalyst was prepared. The per- formance of LaNaY zeolite was characterized by X - ray diffraction and infrared spectroscopy. The results showed that with increasing the pH value of ex- change solution,lanthanum ion could exehange with sodium ion in sodalite eage of NaY zeolite,and loca- ted in the cage. The optimum pH value of exchange solution was 3.5 - 4.5. With the increase of calcina- tion temperature,both the crystallinity and its reten- tion rate increased, and the micro - activity of rele- vant catalyst also increased. The optimal calcination temperature of LaNaY zeolite was 450 -550 ℃. |
| |
| Keywords: | LaNaY zeolite lanthanum modifica- tion catalyst crystallinity calcination temperature micro - activity |
| 本文献已被 维普 等数据库收录！ |
|
