发明名称 |
SHAPE SELECTIVE ZEOLITE CATALYST AND ITS USE IN AROMATIC COMPOUND CONVERSION |
摘要 |
A shape-selective catalyst comprises a synthetic porous crystalline material having the structure of ZSM-5 and a composition involving the molar relationship: X2O3:(n)YO2, wherein X is a trivalent element, such as aluminum, boron, iron and/or gallium, preferably aluminum; Y is a tetravalent element such as silicon and/or germanium, preferably silicon; and n is greater than about 12, and wherein the crystals have a major dimension of at least about 0.5 micron and a surface YO2/X2O3 ratio which is no more than 20 % less than the bulk YO2/X2O3 ratio of the crystal. The crystals have a diffusion-modifying surface coating of a refractory material such as silica or coke. The catalyst is useful in a wide variety of selective hydrocarbon conversion processes, particularly the selective disproportionation of toluene to para-xylene. |
申请公布号 |
EP0877781(A4) |
申请公布日期 |
2000.03.22 |
申请号 |
EP19960937906 |
申请日期 |
1996.11.05 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
ABICHANDANI, JEEVAN, SAHIB;LISSY, DARIA, NOWAKIWSKA;RUBIN, MAE, KOENIG;SHARMA, SANJAY, BHARDWAJ;SHIHABI, DAVID, SAID |
分类号 |
B01J29/40;B01J29/04;B01J29/86;B01J29/87;B01J29/88;C07C2/00;C07C2/66;C07C4/06;C07C4/18;C07C5/27;C07C5/41;C07C6/12;C07C15/08;C10G11/02;C10G35/06 |
主分类号 |
B01J29/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|