| Coal chemical industry based on coal as raw material, through a series of chemical reaction process, can be converted to liquid, gas and chemicals, coal, coal chemical products such as olefins, and dimethyl ether can be as a substitute for oil this energy. DME as a new secondary energy has great potential for development, its product market is booming, can predict dimethyl ether as a clean fuel of the 21 st century and its market prospects are very encouraging. Therefore, the transformation of existing DME processes, reduce consumption, increase production and product quality, will have enormous social and economic benefits.Based on the Hubei SanNing Chemical Co., Ltd. 100000 tons / year dimethyl ether, and found that the process itself is flawed, it can not achieve high yield and low consumption, through trial and error and learning technical personnel exchanges, key equipment for process transformation solve the high consumption, yield and quality of non-compliance issues; the traditional methanol warming mode to hard-condensable gas circulation warming, improve catalyst life, reduce system resistance. Energy saving effect is obvious, with better guidance. |
