成型方法对MTP工艺ZSM-5分子筛催化剂性能的影响  

Effect of shape-forming method on performance of ZSM-5 molecular sieve catalyst for MTP

作　　者：张玉柱[1] 雍晓静[1] 张堃[1] 王军[1] 江永军[1] 李云[1] 齐静[1] 

机构地区：[1]神华宁夏煤业集团有限责任公司煤化工分公司,宁夏银川750411

出　　处：《天然气化工—C1化学与化工》2014年第1期32-35,51,共5页Natural Gas Chemical Industry

基　　金：宁夏回族自治区2011年科技攻关计划项目

摘　　要：以高硅铝比HZSM-5为活性组分,用SiO2、γ-Al2O3为粘结剂通过挤条成型后制成催化剂,在典型的MTP条件下,对催化剂进行活性评价。用XRD,NH3-TPD,Py-IR等手段对催化剂进行表征,分析催化活性、强度与粘结剂的关系,发现采用不同粘结剂成型的催化剂会影响其表面的酸性质及其分布,对催化剂的强度影响也很显著,SiO2粘结剂比.γ-Al2O3低碳烯烃选择性高、稳定性好。Using HZSM-5 molecular sieve with high Si/Al ratio as active component and SiO2 orγ-Al2O3 as binder to prepare the catalysts for methanol to propylene （MTP） by extrusion. The catalytic performances of the prepared catalysts were evaluated under the common conditions for MTP reaction, and XRD, NH3-TPD, Py-IR etc. were used to characterize the catalysts to investigate the effect of different binders on the catalytic activity and mechanical strength of the catalysts. The results showed that the binders had obvious effect on the strength and surface acid behaviour of the catalysts as well as the distribution of MTP products, and SiO2 demonstrated a better selectivity to light alkenes and a higher stability than γ-Al2O3.

关 键 词：HZSM-5催化剂 成型 粘结剂 甲醇制丙烯 MTP 

分 类 号：TQ426[化学工程] O643[理学—物理化学]