| 水热老化对CRC-1分子筛催化剂物性及再生性能的影响 |
| |
| 引用本文： | 黄太清,史济群,杨光华.水热老化对CRC-1分子筛催化剂物性及再生性能的影响[J].中国石油大学学报(自然科学版),1987(3). |
| |
| 作者姓名： | 黄太清 史济群 杨光华 |
| |
| 作者单位： | 华东石油学院炼油教研室，华东石油学院炼油教研室，华东石油学院炼油教研室 86届硕士研究生 |
| |
| 摘 要： | 本文用实验方法对 CRC—1分子筛催化剂进行高温水汽流化老化处理,测取催化剂经不同条件(温度和时间)老化前后的物性及其含焦剂再生消碳速率数据。水热老化使催化剂的比表面积(S_(BET))、相对结晶度(x％)、再生消碳速率均降低。老化温度恒定时,催化剂的S_(BET)、x％及再生消碳速率常数k_cT变化可以用一个经验幂数方程描述:-dA]/dh=k_dA]~n。当老化温度超过750℃时,催化剂结构破坏速率加快;在实验温度范围内,不同老化温度下水汽分子对催化剂结构破坏加速程度基本相近。高温水汽分子使分子筛晶体骨架脱铝,催化剂的再生性能则与其性质及性质的变化密切相关。
|
| 关 键 词： | 催化剂 分子筛 再生 物理性能 沸点 老化 |
THE EFFECT OF HIGH TEMPERATURE STEAM TREATMENT ON PHYSICAL STRUCTURE AND REGENERATION RATE OF ZEOLITE CRC-1 |
| |
| Huang Taiqing Shi Jiqvn Yang Guanghua.THE EFFECT OF HIGH TEMPERATURE STEAM TREATMENT ON PHYSICAL STRUCTURE AND REGENERATION RATE OF ZEOLITE CRC-1[J].Journal of China University of Petroleum,1987(3). |
| |
| Authors: | Huang Taiqing Shi Jiqvn Yang Guanghua |
| |
| Institution: | Huang Taiqing Shi Jiqvn Yang Guanghua |
| |
| Abstract: | In this paper the zeolite catalyst CRC-1 was treated by high temperature steam in laboratory at different temperatures during different time of treatment. The surface area (SBET), relative content of zeolite crystalline (x%), and regeneration rate constant (kcT) continuously decrease with deactivation of catalyst. At constant treating temperatures, the rate of SBET,X and kcT of the catalyst can be expressed by an equation. Aluminium, was drawn out from the skeleton of zeolite crystallin in the condition of high temperature steam treating. The test shows that regeneration rate of coked catalyst is related closely to its properties. |
| |
| Keywords: | Catalysts Molecular sieve catalysts Molecular sieve Regeneration Physical properties Zeolite Aging |
| 本文献已被 CNKI 等数据库收录！ |
