天然丝光沸石烷烃异构化催化剂的研制——(Ⅰ)原矿粉直接加工成催化剂  

STUDIES ON THE PARAFFIN ISOMERIZATION CATALYSTS DERIVED FROM NATURAL MORDENITE (Ⅰ)PREPARATION OF CATALYST FROM THE RAW ORE POWDER

作　　者：潘声云[1] 郑有后 刘炳麟[1] 

机构地区：[1]浙江大学化工系,杭州310027

出　　处：《化学反应工程与工艺》1993年第2期178-184,共7页Chemical Reaction Engineering and Technology

摘　　要：采用缙云产的天然丝光沸石(NM),经铵酸法处理制得氢型天然丝光沸石(HNM),然后用离子交换法 E,浸渍法 I 及机械混合法 M 载铂或钯,制成双功能催化剂。在加压微反色谱联合装置上进行 nC_5~0/nC_6~0异构化反应,测定催化活性。实验表明,采用离子交换法载的铂或钯的催化剂,活性最高。同时还考察了粘结剂种类,原料组成及工艺条件,如温度、空速、氢烃比和压力对催化剂活性的影响等。使用0.5%Pd/HNM-E_(43)催化剂在20mL 小试加压临氢异构化反应器上进行了稳定性试验。数据表明,E_(43)催化剂具有较高的活性和良好的稳定性、也具有良好的再生性能。A natural mordenite in H form(HNM)was prepared from Jin-Yun mordenite by means of ammonium acid method.The bifunctional catalyst was then made by loading Pt or Pd on it by ion exchanging(E),impregnation(I)or physical mixing(M)method.The isomerization of nC_5~0/nC_6~0 on the pressurized microreactor-chromatograph unit showed that the highest catalytic activity was obtained by ion exchange method.The effects of binding agent,feed composition and technological conditions such as temperature,pressure,space velocity and the ratio of H_2 to hydrocarbon on catalytic activity were also studied in this work. The stability test with 0.5% Pd/HNM—E_(43)catalyst in a 20 mL.reactor at evelated pressure indicated that the activity,stability and regeneration behavior were satisfactory.

关 键 词：天然丝光沸石 异构化 正戊烷 

分 类 号：O623.11[理学—有机化学]