1results about How to "Improve logistics distribution" patented technology

The present application belongs to the technical field of CHDM preparation process, and discloses a catalyst multi-bed steady-state grading loading method in a two-stage hydrogenation process in CHDM preparation process. A plurality of layers of catalyst multi-bed are arranged in the reactor in the two-stage hydrogenation process; the temperature at the catalyst bed in the reactor in the first-stage hydrogenation process is set to 135-170 DEG C, the temperature at the catalyst bed in the reactor in the second-stage hydrogenation process is set to 200-210 DEG C, and the number of layers of catalyst bed in the reactor in the first-stage hydrogenation process is more than that in the reactor in the second-stage hydrogenation process by one layer. The present application has the advantages of improving production efficiency, reducing production cost, ensuring the safety of operating personnel, improving catalyst utilization, optimizing reactor operation efficiency, etc. The present application has good practicability and popularization value.