首页>
外国专利>
Single step synthesis gas-to-dimethyl ether process with methanol introduction
Single step synthesis gas-to-dimethyl ether process with methanol introduction
展开▼
机译:引入甲醇的一步法合成气制二甲醚工艺
展开▼
页面导航
摘要
著录项
相似文献
摘要
A process is set forth for converting synthesis gas into dimethyl ether (DME) in a single step comprising contacting the synthesis gas with a bifunctional catalyst system having a methanol synthesis functionality and a methanol dehydration functionality. In particular, the present invention is an improvement to said process for increasing the stability of the bifunctional catalyst system, particularly when the process is conducted in the liquid phase. The improvement comprises introducing a methanol containing stream into the DME reactor such that the methanol concentration throughout the DME reactor is maintained at a concentration greater than 1.0%, generally between 4.0% and 8.0%. In one embodiment of the present invention, the methanol containing stream comprises at least a portion of the byproduct methanol from the DME reactor such that said portion of byproduct methanol is introduced into the DME reactor as a recycle stream.
展开▼