介绍了四川天一科技股份有限公司设计的10 kt/a 甲醇制二甲醚装置在陕西渭河煤化工集团有限责任公司的运行情况,以及根据运行情况对原设计做出的一些技术改造。 This paper introduces the operation of 10 kt / a methanol dimethyl ether plant designed by Sichuan Tianyi Science and Technology Co., Ltd. in Shaanxi Weihe Coal Chemical Industry Group Co., Ltd., and some technical reformations on the original design according to the operation conditions.