公开(公告)号：KR100763311B1

公开(公告)日：2007-10-04

申请号：KR1020060072905

申请日：2006-08-02

Applicant: 한국과학기술연구원

Inventor： 정광덕 ,  주오심 ,  팔군다디아마빌리스젤리아꼬 ,  오준우 ,  아쿨라베누고팔

IPC: C07F1/08 ,  C07F3/06 ,  C07F5/06 ,  C07F5/00

CPC classification number: B01J23/83 ,  B01J21/04 ,  B01J23/72 ,  B01J23/80 ,  B01J35/0053 ,  B01J37/0201 ,  C07C29/154 ,  C07C31/04 ,  C07C41/09 ,  C07C43/043

Abstract: A catalyst for synthesizing dimethylether from synthesis gas is provided to increase catalyst activity for both methanol synthesis reaction and aqueous gas reaction such that dimethylether is highly synthesized when the catalyst is physically mixed with a solid acid. A catalyst for synthesizing dimethylether from synthesis gas comprises a complex metal oxide represented by the formula(1): (CuO)x(ZnO)y(Al2O3)z : (Y2O3)p in which x, y, z and p independently indicate mole number of respective oxides, x/y is 0.1-10, x/(y+z) is 0.1-10, x/(y+z+p) is 0.1-10 and p/(x+y+z) is 0.01-1, and 1-90 wt.% of a solid acid. The complex metal oxide has copper surface area of more than 10 m^2/g and is prepared by co-precipitating water-soluble salt solution of copper, zinc, aluminum and yttrium using an alkali precipitating agent at pH 5-12, and drying and calcinating the obtained precipitated products at 250-700 deg.C. The solid acid is selected from gamma alumina, silica and zeolite. The dimethylether is synthesized from synthesis gas in the presence of the catalyst under conditions of GHSV(Gas Hourly Space Velocity) 500-300,000 g_cat/h, temperature of 200-350 deg.C and pressure of 5-120 atmospheric pressure.

Abstract translation: 提供了从合成气中合成二甲醚的催化剂，以提高甲醇合成反应和含水气反应的催化剂活性，使得当催化剂与固体酸物理混合时，二甲基醚被高度合成。 从合成气合成二甲醚的催化剂包括由式（1）表示的复合金属氧化物：（CuO）x（ZnO）y（Al2O3）z：（Y2O3）p，其中x，y，z和p独立地表示摩尔 各个氧化物的数量x / y为0.1-10，x /（y + z）为0.1-10，x /（y + z + p）为0.1-10，p /（x + y + z）为0.01 -1和1-90重量％的固体酸。 复合金属氧化物具有大于10m 2 / g的铜表面积，并且使用碱性沉淀剂在pH 5-12下共沉淀铜，锌，铝和钇的水溶性盐溶液，并干燥 并在250-700℃煅烧得到的沉淀产物。 固体酸选自γ-氧化铝，二氧化硅和沸石。 在催化剂存在下，在GHSV（Gas Hourly Space Velocity）500-300,000 g_cat / h，温度为200-350℃，压力为5-120大气压的条件下，合成二甲醚。