第 26 卷第 4 期 高 校 化 学 工 程 学 报
No.4
Vol.26
2012 年 8 月 Journal of Chemical Engineering of Chinese Universities Aug.
2012
文章编号：1003-9015(2012)04-0599-07 网络出版地址：http://www.cnki.net/kcms/detail/33.1141.TQ.20120612.1558.002.html
放大制备甲醇制低碳烯烃催化剂的性能
顾海霞
1
, 马宏方
1
, 应卫勇
1
, 房鼎业
1
, 孙启文
2
(1. 华东理工大学 大型工业反应器工程教育部工程研究中心 化学工程联合国家重点实验室,
上海 200237; 2. 上海兖矿能源科技研发有限公司 煤液化及煤化工国家重点实验室, 上海 201203)
摘 要：放大制备 SAPO-34 分子筛催化剂，在实验室的流化床反应器中考察其对甲醇制低碳烯烃的催化性能。主要
研究了反应温度、空速(WHSV)、进料组成随反应时间对产物中低碳烯烃(乙烯+丙烯)摩尔分率的影响；同时在流化床
中，对失活催化剂进行再生实验，考察了再生温度和再生时间的影响，并用 XRD、SEM、N
2
等温吸附/脱附和 NH
3
-TPD
手段对催化剂进行表征。实验结果表明，在 475℃，空速 2.5 h
1
，甲醇 90 %(mol)进料时，产物中低碳烯烃的摩尔分
率高达90.3%；再生温度 600℃，再生时间大于 30 min 条件下催化剂的再生效果较好，且微观结构和强弱酸中心的分
布没有发生明显变化，可以循环使用。
关键词：甲醇制烯烃；SAPO-34；放大；流化床；反应-再生
中图分类号：TQ426.63；TQ203.2；TQ211 文献标识码：A
Performances of Scale-up Prepared Catalyst for Methanol to Light Olefins
GU Hai-xia
1
, MA Hong-fang
1
, YING Wei-yong
1
, FANG Ding-ye
1
, SUN Qi-wen
2
(1. Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education,
State Key Laboratory of Chemical Engineering, East China University of Science and Technology,
Shanghai 200237, China; 2. State Key Laboratory of Coal Liquefaction and Coal Chemical Technology,
Shanghai Yankuang Energy R&D Co., Ltd, Shanghai 201203, China)
Abstract: In order to study the catalytic performances of scale-up prepared SAPO-34 molecular sieve catalyst
for methanol to light olefins, the SAPO-34 was synthesized in the scale-up test device, and then its catalytic
performances were investigated in a lab fluidized bed reactor. The effects of reaction temperature, space
velocity (WHSV) and feed composition on the molar fraction of ethylene and propylene in the products were
investigated. The deactivated catalyst after use was regenerated in the fluidized bed reactor and then the
performances of the regenerated catalyst were investigated to find out the optimal regeneration temperature and
time. The results indicate that: with feed methanol composition of 90%(mol), the total molar fraction of
ethylene and propylene in the products can reach 90.3% under optimal reaction conditions of 475℃, and
WHSV=2.5 h
1
; the regenerated catalyst performs well after regenerated at 600℃ for more than 30 minutes.
Both the fresh and the regenerated catalyst SAPO-34 were characterized by XRD, SEM, N
2
isothermal
adsorption/desorption and NH
3
-TDP. The results show that the microstructure and the distribution of both strong
and weak acid sites of regenerated catalyst SAPO-34 have no evident change, and it can be used repeatedly.
Key words: methanol to olefins; SAPO-34; scale-up; fluidized bed; reaction-regeneration
1 前 言
低碳烯烃，尤其是乙烯、丙烯是现代化学工业的基本原料，是石油化工产品的基础。目前，国内外
对乙烯、丙烯的需求量越来越大，但其大部分经石油路线而得
[1]
。对于石油而言，短时期内有价格上涨、
收稿日期：2011-08-30；修订日期：2011-12-30。网络出版时间：2012-06-12 15:58
基金项目：国家科技支撑计划项目(2006BAE02B02)。
作者简介：顾海霞(1987-)，女，江苏南通市人，华东理工大学硕士生。通讯联系人：应卫勇，E-mail：wying@ecust.edu.cn
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