| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for preparing a zeolite catalyst containing a calcium compound for composing lower hydrocarbon from dimethyl ether or methanol, in a simple and inexpensively adjustable manner so as to prevent elimination of tetrahedral aluminum from a zeolite framework in the zeolite catalyst containing the calcium compound. <P>SOLUTION: The method for preparing the zeolite catalyst containing the calcium compound for composing lower hydrocarbon from dimethyl ether or methanol includes a mixing-kneading process, a drying-calcinating process, and a steam treatment process of a composite material containing first to third components. In the steam treatment process, steam treatment is carried out so that the level (a.u.) of steam treatment indicated by a value obtained by multiplying steam partial pressure by steam treatment time is 1.92-16.8. <P>COPYRIGHT: (C)2013,JPO&INPIT |
