Conversion of propylene to moving bed technology and etherification process alcoholic oxygenate using

摘要

The catalytic etherification reaction, the average propylene selectivity of on-stream cycle of (OTP) process conversion to propylene alcoholic oxygenate using a fixed bed of one or more bifunctional oxygenate conversion catalyst Together with the choice of catalyst on stream cycle time of 300 hours or less Also, by utilizing a supply pre-processing steps, including, to use the technology of the moving bed reactor instead of a fixed bed technology in olefin synthesis part of the OTP flow configuration can be greatly improved by it. By providing these, and maintained at a level which does not substantially degrade the activity of the catalyst, the selectivity of propylene and conversion of oxygenates, deposition of coke on the catalyst, the real average cycle yield of propylene by this makes it possible to maintain the level of circulating manner in the beginning. For yield achieved by fixed-bed systems of the prior art, 1.5 to 5.5% by weight, or increase in the average cycle propylene yield achieved by the present invention is higher. [Selection] Figure Figure 1