阅读说明：本技术 方法 (Method ) 是由 B·J·丹尼斯-史密瑟斯 J·G·森利 杨志强 于 2019-02-22 设计创作，主要内容包括：一种在催化剂和助催化剂的存在下将甲醇脱水为二甲醚产物的方法,其中所述催化剂是至少一种硅铝酸盐沸石,其中：-硅铝酸盐沸石选自：(i)具有2维骨架结构的沸石,其包含至少一个具有10元环的通道,并且具有至少4.8埃的最大自由球直径；(ii)具有3维骨架结构的沸石,其包含至少一个具有10元环的通道；或(iii)包含至少一个具有12元环的通道的沸石；-助催化剂选自式I的一种或多种化合物：(I)(I)其中Y选自C-(1)-C-(4)烃基取代基,并且其中每个X和任何或所有Z可独立地选自氢、卤素、取代或未取代的烃基取代基、或者式-CHO、-CO-(2)R、-COR或-OR的基团,其中R是氢或者取代或未取代的烃基取代基,并且其中助催化剂与甲醇的摩尔比保持在小于1。(A process for the dehydration of methanol to a dimethyl ether product in the presence of a catalyst and a promoter, wherein the catalyst is at least one aluminosilicate zeolite, wherein: -the aluminosilicate zeolite is selected from: (i) a zeolite having a 2-dimensional framework structure comprising at least one channel having 10-membered rings and having a maximum free sphere diameter of at least 4.8 angstroms; (ii) a zeolite having a 3-dimensional framework structure comprising at least one channel having 10-membered rings; or (iii) a zeolite comprising at least one channel having a 12-membered ring; -the cocatalyst is selected from one or more compounds of formula I: (I) (I) wherein Y is selected from C 1 ‑C 4 A hydrocarbyl substituent, and wherein each X and any or all Z can be independently selected from hydrogen, halogen, a substituted or unsubstituted hydrocarbyl substituent, or a compound of the formula-CHO, -CO 2 R, -COR OR-OR, wherein R is hydrogen OR a substituted OR unsubstituted hydrocarbyl substituent, and wherein the molar ratio of cocatalyst to methanol is maintained at less than 1.)